Support update data validations on inserting/deleting columns/rows

adjust.go

@@ -30,10 +30,13 @@ const (
 )
 
 // adjustHelperFunc defines functions to adjust helper.
-var adjustHelperFunc = [8]func(*File, *xlsxWorksheet, string, adjustDirection, int, int, int) error{
+var adjustHelperFunc = [9]func(*File, *xlsxWorksheet, string, adjustDirection, int, int, int) error{
 	func(f *File, ws *xlsxWorksheet, sheet string, dir adjustDirection, num, offset, sheetID int) error {
 		return f.adjustConditionalFormats(ws, sheet, dir, num, offset, sheetID)
 	},
+	func(f *File, ws *xlsxWorksheet, sheet string, dir adjustDirection, num, offset, sheetID int) error {
+		return f.adjustDataValidations(ws, sheet, dir, num, offset, sheetID)
+	},
 	func(f *File, ws *xlsxWorksheet, sheet string, dir adjustDirection, num, offset, sheetID int) error {
 		return f.adjustDefinedNames(ws, sheet, dir, num, offset, sheetID)
 	},
@@ -66,7 +69,7 @@ var adjustHelperFunc = [8]func(*File, *xlsxWorksheet, string, adjustDirection, i
 // row: Index number of the row we're inserting/deleting before
 // offset: Number of rows/column to insert/delete negative values indicate deletion
 //
-// TODO: adjustComments, adjustDataValidations, adjustPageBreaks, adjustProtectedCells
+// TODO: adjustComments, adjustPageBreaks, adjustProtectedCells
 func (f *File) adjustHelper(sheet string, dir adjustDirection, num, offset int) error {
 	ws, err := f.workSheetReader(sheet)
 	if err != nil {
@@ -369,7 +372,10 @@ func (f *File) adjustFormulaOperand(sheet, sheetN string, keepRelative bool, tok
 		sheetName, cell = tokens[0], tokens[1]
 		operand = escapeSheetName(sheetName) + "!"
 	}
-	if sheet != sheetN && sheet != sheetName {
+	if sheetName == "" {
+		sheetName = sheetN
+	}
+	if sheet != sheetName {
 		return operand + cell, err
 	}
 	for _, r := range cell {
@@ -804,6 +810,60 @@ func (f *File) adjustConditionalFormats(ws *xlsxWorksheet, sheet string, dir adj
 	return nil
 }
 
+// adjustDataValidations updates the range of data validations for the worksheet
+// when inserting or deleting rows or columns.
+func (f *File) adjustDataValidations(ws *xlsxWorksheet, sheet string, dir adjustDirection, num, offset, sheetID int) error {
+	for _, sheetN := range f.GetSheetList() {
+		worksheet, err := f.workSheetReader(sheetN)
+		if err != nil {
+			if err.Error() == newNotWorksheetError(sheetN).Error() {
+				continue
+			}
+			return err
+		}
+		if worksheet.DataValidations == nil {
+			return nil
+		}
+		for i := 0; i < len(worksheet.DataValidations.DataValidation); i++ {
+			dv := worksheet.DataValidations.DataValidation[i]
+			if dv == nil {
+				continue
+			}
+			if sheet == sheetN {
+				ref, del, err := f.adjustCellRef(dv.Sqref, dir, num, offset)
+				if err != nil {
+					return err
+				}
+				if del {
+					worksheet.DataValidations.DataValidation = append(worksheet.DataValidations.DataValidation[:i],
+						worksheet.DataValidations.DataValidation[i+1:]...)
+					i--
+					continue
+				}
+				worksheet.DataValidations.DataValidation[i].Sqref = ref
+			}
+			if worksheet.DataValidations.DataValidation[i].Formula1 != nil {
+				formula := unescapeDataValidationFormula(worksheet.DataValidations.DataValidation[i].Formula1.Content)
+				if formula, err = f.adjustFormulaRef(sheet, sheetN, formula, false, dir, num, offset); err != nil {
+					return err
+				}
+				worksheet.DataValidations.DataValidation[i].Formula1 = &xlsxInnerXML{Content: formulaEscaper.Replace(formula)}
+			}
+			if worksheet.DataValidations.DataValidation[i].Formula2 != nil {
+				formula := unescapeDataValidationFormula(worksheet.DataValidations.DataValidation[i].Formula2.Content)
+				if formula, err = f.adjustFormulaRef(sheet, sheetN, formula, false, dir, num, offset); err != nil {
+					return err
+				}
+				worksheet.DataValidations.DataValidation[i].Formula2 = &xlsxInnerXML{Content: formulaEscaper.Replace(formula)}
+			}
+		}
+		if worksheet.DataValidations.Count = len(worksheet.DataValidations.DataValidation); worksheet.DataValidations.Count == 0 {
+			worksheet.DataValidations = nil
+		}
+	}
+	return nil
+}
+
 // adjustDrawings updates the starting anchor of the two cell anchor pictures
 // and charts object when inserting or deleting rows or columns.
 func (from *xlsxFrom) adjustDrawings(dir adjustDirection, num, offset int, editAs string) (bool, error) {

adjust_test.go

@@ -743,7 +743,7 @@ func TestAdjustFormula(t *testing.T) {
 		assert.NoError(t, f.InsertRows("Sheet1", 2, 1))
 		formula, err = f.GetCellFormula("Sheet1", "B1")
 		assert.NoError(t, err)
-		assert.Equal(t, "SUM('Sheet 1'!A3,A5)", formula)
+		assert.Equal(t, "SUM('Sheet 1'!A2,A5)", formula)
 
 		f = NewFile()
 		// Test adjust formula on insert col in the middle of the range
@@ -993,6 +993,76 @@ func TestAdjustConditionalFormats(t *testing.T) {
 	assert.NoError(t, f.RemoveCol("Sheet1", "B"))
 }
 
+func TestAdjustDataValidations(t *testing.T) {
+	f := NewFile()
+	dv := NewDataValidation(true)
+	dv.Sqref = "B1"
+	assert.NoError(t, dv.SetDropList([]string{"1", "2", "3"}))
+	assert.NoError(t, f.AddDataValidation("Sheet1", dv))
+	assert.NoError(t, f.RemoveCol("Sheet1", "B"))
+	dvs, err := f.GetDataValidations("Sheet1")
+	assert.NoError(t, err)
+	assert.Len(t, dvs, 0)
+
+	assert.NoError(t, f.SetCellValue("Sheet1", "F2", 1))
+	assert.NoError(t, f.SetCellValue("Sheet1", "F3", 2))
+	dv = NewDataValidation(true)
+	dv.Sqref = "C2:D3"
+	dv.SetSqrefDropList("$F$2:$F$3")
+	assert.NoError(t, f.AddDataValidation("Sheet1", dv))
+
+	assert.NoError(t, f.AddChartSheet("Chart1", &Chart{Type: Line}))
+	_, err = f.NewSheet("Sheet2")
+	assert.NoError(t, err)
+	assert.NoError(t, f.SetSheetRow("Sheet2", "C1", &[]interface{}{1, 10}))
+	dv = NewDataValidation(true)
+	dv.Sqref = "C5:D6"
+	assert.NoError(t, dv.SetRange("Sheet2!C1", "Sheet2!D1", DataValidationTypeWhole, DataValidationOperatorBetween))
+	dv.SetError(DataValidationErrorStyleStop, "error title", "error body")
+	assert.NoError(t, f.AddDataValidation("Sheet1", dv))
+	assert.NoError(t, f.RemoveCol("Sheet1", "B"))
+	assert.NoError(t, f.RemoveCol("Sheet2", "B"))
+	dvs, err = f.GetDataValidations("Sheet1")
+	assert.NoError(t, err)
+	assert.Equal(t, "B2:C3", dvs[0].Sqref)
+	assert.Equal(t, "$E$2:$E$3", dvs[0].Formula1)
+	assert.Equal(t, "B5:C6", dvs[1].Sqref)
+	assert.Equal(t, "Sheet2!B1", dvs[1].Formula1)
+	assert.Equal(t, "Sheet2!C1", dvs[1].Formula2)
+
+	dv = NewDataValidation(true)
+	dv.Sqref = "C8:D10"
+	assert.NoError(t, dv.SetDropList([]string{`A<`, `B>`, `C"`, "D\t", `E'`, `F`}))
+	assert.NoError(t, f.AddDataValidation("Sheet1", dv))
+	assert.NoError(t, f.RemoveCol("Sheet1", "B"))
+	dvs, err = f.GetDataValidations("Sheet1")
+	assert.NoError(t, err)
+	assert.Equal(t, "\"A<,B>,C\",D\t,E',F\"", dvs[2].Formula1)
+
+	dv = NewDataValidation(true)
+	dv.Sqref = "C5:D6"
+	assert.NoError(t, dv.SetRange("Sheet1!A1048576", "Sheet1!XFD1", DataValidationTypeWhole, DataValidationOperatorBetween))
+	dv.SetError(DataValidationErrorStyleStop, "error title", "error body")
+	assert.NoError(t, f.AddDataValidation("Sheet1", dv))
+	assert.Equal(t, ErrColumnNumber, f.InsertCols("Sheet1", "A", 1))
+	assert.Equal(t, ErrMaxRows, f.InsertRows("Sheet1", 1, 1))
+
+	ws, ok := f.Sheet.Load("xl/worksheets/sheet1.xml")
+	assert.True(t, ok)
+	ws.(*xlsxWorksheet).DataValidations.DataValidation[0].Sqref = "-"
+	assert.Equal(t, newCellNameToCoordinatesError("-", newInvalidCellNameError("-")), f.RemoveCol("Sheet1", "B"))
+
+	ws.(*xlsxWorksheet).DataValidations.DataValidation[0] = nil
+	assert.NoError(t, f.RemoveCol("Sheet1", "B"))
+
+	ws.(*xlsxWorksheet).DataValidations = nil
+	assert.NoError(t, f.RemoveCol("Sheet1", "B"))
+
+	f.Sheet.Delete("xl/worksheets/sheet1.xml")
+	f.Pkg.Store("xl/worksheets/sheet1.xml", MacintoshCyrillicCharset)
+	assert.EqualError(t, f.adjustDataValidations(nil, "Sheet1", columns, 0, 0, 1), "XML syntax error on line 1: invalid UTF-8")
+}
+
 func TestAdjustDrawings(t *testing.T) {
 	f := NewFile()
 	// Test add pictures to sheet with positioning

datavalidation.go

@@ -75,7 +75,11 @@ var (
 		`&`, `&`,
 		`<`, `&lt;`,
 		`>`, `&gt;`,
-		`"`, `""`,
+	)
+	formulaUnescaper = strings.NewReplacer(
+		`&amp;`, `&`,
+		`&lt;`, `<`,
+		`&gt;`, `>`,
 	)
 	// dataValidationTypeMap defined supported data validation types.
 	dataValidationTypeMap = map[DataValidationType]string{
@@ -101,11 +105,6 @@ var (
 	}
 )
 
-const (
-	formula1Name = "formula1"
-	formula2Name = "formula2"
-)
-
 // NewDataValidation return data validation struct.
 func NewDataValidation(allowBlank bool) *DataValidation {
 	return &DataValidation{
@@ -151,36 +150,40 @@ func (dv *DataValidation) SetDropList(keys []string) error {
 	if MaxFieldLength < len(utf16.Encode([]rune(formula))) {
 		return ErrDataValidationFormulaLength
 	}
-	dv.Formula1 = fmt.Sprintf(`<%[2]s>"%[1]s"</%[2]s>`, formulaEscaper.Replace(formula), formula1Name)
 	dv.Type = dataValidationTypeMap[DataValidationTypeList]
+	if strings.HasPrefix(formula, "=") {
+		dv.Formula1 = formulaEscaper.Replace(formula)
+		return nil
+	}
+	dv.Formula1 = fmt.Sprintf(`"%s"`, strings.NewReplacer(`"`, `""`).Replace(formulaEscaper.Replace(formula)))
 	return nil
 }
 
 // SetRange provides function to set data validation range in drop list, only
 // accepts int, float64, string or []string data type formula argument.
 func (dv *DataValidation) SetRange(f1, f2 interface{}, t DataValidationType, o DataValidationOperator) error {
-	genFormula := func(name string, val interface{}) (string, error) {
+	genFormula := func(val interface{}) (string, error) {
 		var formula string
 		switch v := val.(type) {
 		case int:
-			formula = fmt.Sprintf("<%s>%d</%s>", name, v, name)
+			formula = fmt.Sprintf("%d", v)
 		case float64:
 			if math.Abs(v) > math.MaxFloat32 {
 				return formula, ErrDataValidationRange
 			}
-			formula = fmt.Sprintf("<%s>%.17g</%s>", name, v, name)
+			formula = fmt.Sprintf("%.17g", v)
 		case string:
-			formula = fmt.Sprintf("<%s>%s</%s>", name, v, name)
+			formula = v
 		default:
 			return formula, ErrParameterInvalid
 		}
 		return formula, nil
 	}
-	formula1, err := genFormula(formula1Name, f1)
+	formula1, err := genFormula(f1)
 	if err != nil {
 		return err
 	}
-	formula2, err := genFormula(formula2Name, f2)
+	formula2, err := genFormula(f2)
 	if err != nil {
 		return err
 	}
@@ -205,7 +208,7 @@ func (dv *DataValidation) SetRange(f1, f2 interface{}, t DataValidationType, o D
 //	dv.SetSqrefDropList("$E$1:$E$3")
 //	err := f.AddDataValidation("Sheet1", dv)
 func (dv *DataValidation) SetSqrefDropList(sqref string) {
-	dv.Formula1 = fmt.Sprintf("<formula1>%s</formula1>", sqref)
+	dv.Formula1 = sqref
 	dv.Type = dataValidationTypeMap[DataValidationTypeList]
 }
 
@@ -256,7 +259,27 @@ func (f *File) AddDataValidation(sheet string, dv *DataValidation) error {
 	if nil == ws.DataValidations {
 		ws.DataValidations = new(xlsxDataValidations)
 	}
-	ws.DataValidations.DataValidation = append(ws.DataValidations.DataValidation, dv)
+	dataValidation := &xlsxDataValidation{
+		AllowBlank:       dv.AllowBlank,
+		Error:            dv.Error,
+		ErrorStyle:       dv.ErrorStyle,
+		ErrorTitle:       dv.ErrorTitle,
+		Operator:         dv.Operator,
+		Prompt:           dv.Prompt,
+		PromptTitle:      dv.PromptTitle,
+		ShowDropDown:     dv.ShowDropDown,
+		ShowErrorMessage: dv.ShowErrorMessage,
+		ShowInputMessage: dv.ShowInputMessage,
+		Sqref:            dv.Sqref,
+		Type:             dv.Type,
+	}
+	if dv.Formula1 != "" {
+		dataValidation.Formula1 = &xlsxInnerXML{Content: dv.Formula1}
+	}
+	if dv.Formula2 != "" {
+		dataValidation.Formula2 = &xlsxInnerXML{Content: dv.Formula2}
+	}
+	ws.DataValidations.DataValidation = append(ws.DataValidations.DataValidation, dataValidation)
 	ws.DataValidations.Count = len(ws.DataValidations.DataValidation)
 	return err
 }
@@ -270,7 +293,33 @@ func (f *File) GetDataValidations(sheet string) ([]*DataValidation, error) {
 	if ws.DataValidations == nil || len(ws.DataValidations.DataValidation) == 0 {
 		return nil, err
 	}
-	return ws.DataValidations.DataValidation, err
+	var dvs []*DataValidation
+	for _, dv := range ws.DataValidations.DataValidation {
+		if dv != nil {
+			dataValidation := &DataValidation{
+				AllowBlank:       dv.AllowBlank,
+				Error:            dv.Error,
+				ErrorStyle:       dv.ErrorStyle,
+				ErrorTitle:       dv.ErrorTitle,
+				Operator:         dv.Operator,
+				Prompt:           dv.Prompt,
+				PromptTitle:      dv.PromptTitle,
+				ShowDropDown:     dv.ShowDropDown,
+				ShowErrorMessage: dv.ShowErrorMessage,
+				ShowInputMessage: dv.ShowInputMessage,
+				Sqref:            dv.Sqref,
+				Type:             dv.Type,
+			}
+			if dv.Formula1 != nil {
+				dataValidation.Formula1 = unescapeDataValidationFormula(dv.Formula1.Content)
+			}
+			if dv.Formula2 != nil {
+				dataValidation.Formula2 = unescapeDataValidationFormula(dv.Formula2.Content)
+			}
+			dvs = append(dvs, dataValidation)
+		}
+	}
+	return dvs, err
 }
 
 // DeleteDataValidation delete data validation by given worksheet name and
@@ -351,3 +400,11 @@ func (f *File) squashSqref(cells [][]int) []string {
 	}
 	return append(refs, ref)
 }
+
+// unescapeDataValidationFormula returns unescaped data validation formula.
+func unescapeDataValidationFormula(val string) string {
+	if strings.HasPrefix(val, "\"") { // Text detection
+		return strings.NewReplacer(`""`, `"`).Replace(formulaUnescaper.Replace(val))
+	}
+	return formulaUnescaper.Replace(val)
+}

datavalidation_test.go

@@ -71,6 +71,7 @@ func TestDataValidation(t *testing.T) {
 	dv.Sqref = "A5:B6"
 	for _, listValid := range [][]string{
 		{"1", "2", "3"},
+		{"=A1"},
 		{strings.Repeat("&", MaxFieldLength)},
 		{strings.Repeat("\u4E00", MaxFieldLength)},
 		{strings.Repeat("\U0001F600", 100), strings.Repeat("\u4E01", 50), "<&>"},
@@ -82,7 +83,7 @@ func TestDataValidation(t *testing.T) {
 		assert.NotEqual(t, "", dv.Formula1,
 			"Formula1 should not be empty for valid input %v", listValid)
 	}
-	assert.Equal(t, `<formula1>"A&lt;,B&gt;,C"",D	,E',F"</formula1>`, dv.Formula1)
+	assert.Equal(t, `"A&lt;,B&gt;,C"",D	,E',F"`, dv.Formula1)
 	assert.NoError(t, f.AddDataValidation("Sheet1", dv))
 
 	dataValidations, err = f.GetDataValidations("Sheet1")

picture_test.go

@@ -294,9 +294,9 @@ func TestDeletePicture(t *testing.T) {
 	// Test delete picture on not exists worksheet
 	assert.EqualError(t, f.DeletePicture("SheetN", "A1"), "sheet SheetN does not exist")
 	// Test delete picture with invalid sheet name
-	assert.EqualError(t, f.DeletePicture("Sheet:1", "A1"), ErrSheetNameInvalid.Error())
+	assert.Equal(t, ErrSheetNameInvalid, f.DeletePicture("Sheet:1", "A1"))
 	// Test delete picture with invalid coordinates
-	assert.EqualError(t, f.DeletePicture("Sheet1", ""), newCellNameToCoordinatesError("", newInvalidCellNameError("")).Error())
+	assert.Equal(t, newCellNameToCoordinatesError("", newInvalidCellNameError("")), f.DeletePicture("Sheet1", ""))
 	assert.NoError(t, f.Close())
 	// Test delete picture on no chart worksheet
 	assert.NoError(t, NewFile().DeletePicture("Sheet1", "A1"))

pivotTable_test.go

@@ -174,7 +174,7 @@ func TestPivotTable(t *testing.T) {
 	}))
 
 	// Test empty pivot table options
-	assert.EqualError(t, f.AddPivotTable(nil), ErrParameterRequired.Error())
+	assert.Equal(t, ErrParameterRequired, f.AddPivotTable(nil))
 	// Test add pivot table with custom name which exceeds the max characters limit
 	assert.Equal(t, ErrNameLength, f.AddPivotTable(&PivotTableOptions{
 		DataRange:       "dataRange",

shape_test.go

@@ -42,16 +42,16 @@ func TestAddShape(t *testing.T) {
 			},
 		},
 	), "sheet Sheet3 does not exist")
-	assert.EqualError(t, f.AddShape("Sheet3", nil), ErrParameterInvalid.Error())
+	assert.Equal(t, ErrParameterInvalid, f.AddShape("Sheet3", nil))
-	assert.EqualError(t, f.AddShape("Sheet1", &Shape{Cell: "A1"}), ErrParameterInvalid.Error())
+	assert.Equal(t, ErrParameterInvalid, f.AddShape("Sheet1", &Shape{Cell: "A1"}))
-	assert.EqualError(t, f.AddShape("Sheet1", &Shape{
+	assert.Equal(t, newCellNameToCoordinatesError("A", newInvalidCellNameError("A")), f.AddShape("Sheet1", &Shape{
 		Cell: "A",
 		Type: "rect",
 		Paragraph: []RichTextRun{
 			{Text: "Rectangle", Font: &Font{Color: "CD5C5C"}},
 			{Text: "Shape", Font: &Font{Bold: true, Color: "2980B9"}},
 		},
-	}), newCellNameToCoordinatesError("A", newInvalidCellNameError("A")).Error())
+	}))
 	assert.NoError(t, f.SaveAs(filepath.Join("test", "TestAddShape1.xlsx")))
 
 	// Test add first shape for given sheet
@@ -79,14 +79,14 @@ func TestAddShape(t *testing.T) {
 		}))
 	assert.NoError(t, f.SaveAs(filepath.Join("test", "TestAddShape2.xlsx")))
 	// Test add shape with invalid sheet name
-	assert.EqualError(t, f.AddShape("Sheet:1", &Shape{
+	assert.Equal(t, ErrSheetNameInvalid, f.AddShape("Sheet:1", &Shape{
 		Cell: "A30",
 		Type: "rect",
 		Paragraph: []RichTextRun{
 			{Text: "Rectangle", Font: &Font{Color: "CD5C5C"}},
 			{Text: "Shape", Font: &Font{Bold: true, Color: "2980B9"}},
 		},
-	}), ErrSheetNameInvalid.Error())
+	}))
 	// Test add shape with unsupported charset style sheet
 	f.Styles = nil
 	f.Pkg.Store(defaultXMLPathStyles, MacintoshCyrillicCharset)

sheetpr_test.go

@@ -30,7 +30,7 @@ func TestSetPageMargins(t *testing.T) {
 	// Test set page margins on not exists worksheet
 	assert.EqualError(t, f.SetPageMargins("SheetN", nil), "sheet SheetN does not exist")
 	// Test set page margins with invalid sheet name
-	assert.EqualError(t, f.SetPageMargins("Sheet:1", nil), ErrSheetNameInvalid.Error())
+	assert.Equal(t, ErrSheetNameInvalid, f.SetPageMargins("Sheet:1", nil))
 }
 
 func TestGetPageMargins(t *testing.T) {
@@ -40,7 +40,7 @@ func TestGetPageMargins(t *testing.T) {
 	assert.EqualError(t, err, "sheet SheetN does not exist")
 	// Test get page margins with invalid sheet name
 	_, err = f.GetPageMargins("Sheet:1")
-	assert.EqualError(t, err, ErrSheetNameInvalid.Error())
+	assert.Equal(t, ErrSheetNameInvalid, err)
 }
 
 func TestSetSheetProps(t *testing.T) {
@@ -88,7 +88,7 @@ func TestSetSheetProps(t *testing.T) {
 	// Test set worksheet properties on not exists worksheet
 	assert.EqualError(t, f.SetSheetProps("SheetN", nil), "sheet SheetN does not exist")
 	// Test set worksheet properties with invalid sheet name
-	assert.EqualError(t, f.SetSheetProps("Sheet:1", nil), ErrSheetNameInvalid.Error())
+	assert.Equal(t, ErrSheetNameInvalid, f.SetSheetProps("Sheet:1", nil))
 }
 
 func TestGetSheetProps(t *testing.T) {
@@ -98,5 +98,5 @@ func TestGetSheetProps(t *testing.T) {
 	assert.EqualError(t, err, "sheet SheetN does not exist")
 	// Test get worksheet properties with invalid sheet name
 	_, err = f.GetSheetProps("Sheet:1")
-	assert.EqualError(t, err, ErrSheetNameInvalid.Error())
+	assert.Equal(t, ErrSheetNameInvalid, err)
 }

sparkline_test.go

@@ -224,46 +224,46 @@ func TestAddSparkline(t *testing.T) {
 		Range:    []string{"Sheet2!A3:E3"},
 	}), "sheet SheetN does not exist")
 
-	assert.EqualError(t, f.AddSparkline("Sheet1", nil), ErrParameterRequired.Error())
+	assert.Equal(t, ErrParameterRequired, f.AddSparkline("Sheet1", nil))
 
 	// Test add sparkline with invalid sheet name
-	assert.EqualError(t, f.AddSparkline("Sheet:1", &SparklineOptions{
+	assert.Equal(t, ErrSheetNameInvalid, f.AddSparkline("Sheet:1", &SparklineOptions{
 		Location: []string{"F3"},
 		Range:    []string{"Sheet2!A3:E3"},
 		Type:     "win_loss",
 		Negative: true,
-	}), ErrSheetNameInvalid.Error())
+	}))
 
-	assert.EqualError(t, f.AddSparkline("Sheet1", &SparklineOptions{
+	assert.Equal(t, ErrSparklineLocation, f.AddSparkline("Sheet1", &SparklineOptions{
 		Range: []string{"Sheet2!A3:E3"},
-	}), ErrSparklineLocation.Error())
+	}))
 
-	assert.EqualError(t, f.AddSparkline("Sheet1", &SparklineOptions{
+	assert.Equal(t, ErrSparklineRange, f.AddSparkline("Sheet1", &SparklineOptions{
 		Location: []string{"F3"},
-	}), ErrSparklineRange.Error())
+	}))
 
-	assert.EqualError(t, f.AddSparkline("Sheet1", &SparklineOptions{
+	assert.Equal(t, ErrSparkline, f.AddSparkline("Sheet1", &SparklineOptions{
 		Location: []string{"F2", "F3"},
 		Range:    []string{"Sheet2!A3:E3"},
-	}), ErrSparkline.Error())
+	}))
 
-	assert.EqualError(t, f.AddSparkline("Sheet1", &SparklineOptions{
+	assert.Equal(t, ErrSparklineType, f.AddSparkline("Sheet1", &SparklineOptions{
 		Location: []string{"F3"},
 		Range:    []string{"Sheet2!A3:E3"},
 		Type:     "unknown_type",
-	}), ErrSparklineType.Error())
+	}))
 
-	assert.EqualError(t, f.AddSparkline("Sheet1", &SparklineOptions{
+	assert.Equal(t, ErrSparklineStyle, f.AddSparkline("Sheet1", &SparklineOptions{
 		Location: []string{"F3"},
 		Range:    []string{"Sheet2!A3:E3"},
 		Style:    -1,
-	}), ErrSparklineStyle.Error())
+	}))
 
-	assert.EqualError(t, f.AddSparkline("Sheet1", &SparklineOptions{
+	assert.Equal(t, ErrSparklineStyle, f.AddSparkline("Sheet1", &SparklineOptions{
 		Location: []string{"F3"},
 		Range:    []string{"Sheet2!A3:E3"},
 		Style:    -1,
-	}), ErrSparklineStyle.Error())
+	}))
 	// Test creating a conditional format with existing extension lists
 	ws, ok := f.Sheet.Load("xl/worksheets/sheet1.xml")
 	assert.True(t, ok)

stream_test.go

@@ -73,7 +73,7 @@ func TestStreamWriter(t *testing.T) {
 	}))
 	assert.NoError(t, streamWriter.SetRow("A6", []interface{}{time.Now()}))
 	assert.NoError(t, streamWriter.SetRow("A7", nil, RowOpts{Height: 20, Hidden: true, StyleID: styleID}))
-	assert.EqualError(t, streamWriter.SetRow("A8", nil, RowOpts{Height: MaxRowHeight + 1}), ErrMaxRowHeight.Error())
+	assert.Equal(t, ErrMaxRowHeight, streamWriter.SetRow("A8", nil, RowOpts{Height: MaxRowHeight + 1}))
 
 	for rowID := 10; rowID <= 51200; rowID++ {
 		row := make([]interface{}, 50)
@@ -158,11 +158,11 @@ func TestStreamSetColWidth(t *testing.T) {
 	streamWriter, err := file.NewStreamWriter("Sheet1")
 	assert.NoError(t, err)
 	assert.NoError(t, streamWriter.SetColWidth(3, 2, 20))
-	assert.ErrorIs(t, streamWriter.SetColWidth(0, 3, 20), ErrColumnNumber)
+	assert.Equal(t, ErrColumnNumber, streamWriter.SetColWidth(0, 3, 20))
-	assert.ErrorIs(t, streamWriter.SetColWidth(MaxColumns+1, 3, 20), ErrColumnNumber)
+	assert.Equal(t, ErrColumnNumber, streamWriter.SetColWidth(MaxColumns+1, 3, 20))
-	assert.EqualError(t, streamWriter.SetColWidth(1, 3, MaxColumnWidth+1), ErrColumnWidth.Error())
+	assert.Equal(t, ErrColumnWidth, streamWriter.SetColWidth(1, 3, MaxColumnWidth+1))
 	assert.NoError(t, streamWriter.SetRow("A1", []interface{}{"A", "B", "C"}))
-	assert.ErrorIs(t, streamWriter.SetColWidth(2, 3, 20), ErrStreamSetColWidth)
+	assert.Equal(t, ErrStreamSetColWidth, streamWriter.SetColWidth(2, 3, 20))
 }
 
 func TestStreamSetPanes(t *testing.T) {
@@ -183,9 +183,9 @@ func TestStreamSetPanes(t *testing.T) {
 	streamWriter, err := file.NewStreamWriter("Sheet1")
 	assert.NoError(t, err)
 	assert.NoError(t, streamWriter.SetPanes(paneOpts))
-	assert.EqualError(t, streamWriter.SetPanes(nil), ErrParameterInvalid.Error())
+	assert.Equal(t, ErrParameterInvalid, streamWriter.SetPanes(nil))
 	assert.NoError(t, streamWriter.SetRow("A1", []interface{}{"A", "B", "C"}))
-	assert.ErrorIs(t, streamWriter.SetPanes(paneOpts), ErrStreamSetPanes)
+	assert.Equal(t, ErrStreamSetPanes, streamWriter.SetPanes(paneOpts))
 }
 
 func TestStreamTable(t *testing.T) {
@@ -220,10 +220,10 @@ func TestStreamTable(t *testing.T) {
 	assert.NoError(t, streamWriter.AddTable(&Table{Range: "A1:C1"}))
 
 	// Test add table with illegal cell reference
-	assert.EqualError(t, streamWriter.AddTable(&Table{Range: "A:B1"}), newCellNameToCoordinatesError("A", newInvalidCellNameError("A")).Error())
+	assert.Equal(t, newCellNameToCoordinatesError("A", newInvalidCellNameError("A")), streamWriter.AddTable(&Table{Range: "A:B1"}))
-	assert.EqualError(t, streamWriter.AddTable(&Table{Range: "A1:B"}), newCellNameToCoordinatesError("B", newInvalidCellNameError("B")).Error())
+	assert.Equal(t, newCellNameToCoordinatesError("B", newInvalidCellNameError("B")), streamWriter.AddTable(&Table{Range: "A1:B"}))
 	// Test add table with invalid table name
-	assert.EqualError(t, streamWriter.AddTable(&Table{Range: "A:B1", Name: "1Table"}), newInvalidNameError("1Table").Error())
+	assert.Equal(t, newInvalidNameError("1Table"), streamWriter.AddTable(&Table{Range: "A:B1", Name: "1Table"}))
 	// Test add table with unsupported charset content types
 	file.ContentTypes = nil
 	file.Pkg.Store(defaultXMLPathContentTypes, MacintoshCyrillicCharset)
@@ -239,7 +239,7 @@ func TestStreamMergeCells(t *testing.T) {
 	assert.NoError(t, err)
 	assert.NoError(t, streamWriter.MergeCell("A1", "D1"))
 	// Test merge cells with illegal cell reference
-	assert.EqualError(t, streamWriter.MergeCell("A", "D1"), newCellNameToCoordinatesError("A", newInvalidCellNameError("A")).Error())
+	assert.Equal(t, newCellNameToCoordinatesError("A", newInvalidCellNameError("A")), streamWriter.MergeCell("A", "D1"))
 	assert.NoError(t, streamWriter.Flush())
 	// Save spreadsheet by the given path
 	assert.NoError(t, file.SaveAs(filepath.Join("test", "TestStreamMergeCells.xlsx")))
@@ -270,7 +270,7 @@ func TestNewStreamWriter(t *testing.T) {
 	assert.EqualError(t, err, "sheet SheetN does not exist")
 	// Test new stream write with invalid sheet name
 	_, err = file.NewStreamWriter("Sheet:1")
-	assert.EqualError(t, err, ErrSheetNameInvalid.Error())
+	assert.Equal(t, ErrSheetNameInvalid, err)
 }
 
 func TestStreamMarshalAttrs(t *testing.T) {
@@ -288,10 +288,10 @@ func TestStreamSetRow(t *testing.T) {
 	}()
 	streamWriter, err := file.NewStreamWriter("Sheet1")
 	assert.NoError(t, err)
-	assert.EqualError(t, streamWriter.SetRow("A", []interface{}{}), newCellNameToCoordinatesError("A", newInvalidCellNameError("A")).Error())
+	assert.Equal(t, newCellNameToCoordinatesError("A", newInvalidCellNameError("A")), streamWriter.SetRow("A", []interface{}{}))
 	// Test set row with non-ascending row number
 	assert.NoError(t, streamWriter.SetRow("A1", []interface{}{}))
-	assert.EqualError(t, streamWriter.SetRow("A1", []interface{}{}), newStreamSetRowError(1).Error())
+	assert.Equal(t, newStreamSetRowError(1), streamWriter.SetRow("A1", []interface{}{}))
 	// Test set row with unsupported charset workbook
 	file.WorkBook = nil
 	file.Pkg.Store(defaultXMLPathWorkbook, MacintoshCyrillicCharset)

styles_test.go

@@ -190,7 +190,7 @@ func TestSetConditionalFormat(t *testing.T) {
 	ws.(*xlsxWorksheet).ExtLst = &xlsxExtLst{Ext: "<ext><x14:conditionalFormattings></x14:conditionalFormatting></x14:conditionalFormattings></ext>"}
 	assert.EqualError(t, f.SetConditionalFormat("Sheet1", "A1:A2", condFmts), "XML syntax error on line 1: element <conditionalFormattings> closed by </conditionalFormatting>")
 	// Test creating a conditional format with invalid icon set style
-	assert.EqualError(t, f.SetConditionalFormat("Sheet1", "A1:A2", []ConditionalFormatOptions{{Type: "icon_set", IconStyle: "unknown"}}), ErrParameterInvalid.Error())
+	assert.Equal(t, ErrParameterInvalid, f.SetConditionalFormat("Sheet1", "A1:A2", []ConditionalFormatOptions{{Type: "icon_set", IconStyle: "unknown"}}))
 	// Test unsupported conditional formatting rule types
 	for _, val := range []string{
 		"date",
@@ -235,7 +235,7 @@ func TestGetConditionalFormats(t *testing.T) {
 	assert.EqualError(t, err, "sheet SheetN does not exist")
 	// Test get conditional formats with invalid sheet name
 	_, err = f.GetConditionalFormats("Sheet:1")
-	assert.EqualError(t, err, ErrSheetNameInvalid.Error())
+	assert.Equal(t, ErrSheetNameInvalid, err)
 }
 
 func TestUnsetConditionalFormat(t *testing.T) {
@@ -249,7 +249,7 @@ func TestUnsetConditionalFormat(t *testing.T) {
 	// Test unset conditional format on not exists worksheet
 	assert.EqualError(t, f.UnsetConditionalFormat("SheetN", "A1:A10"), "sheet SheetN does not exist")
 	// Test unset conditional format with invalid sheet name
-	assert.EqualError(t, f.UnsetConditionalFormat("Sheet:1", "A1:A10"), ErrSheetNameInvalid.Error())
+	assert.Equal(t, ErrSheetNameInvalid, f.UnsetConditionalFormat("Sheet:1", "A1:A10"))
 	// Save spreadsheet by the given path
 	assert.NoError(t, f.SaveAs(filepath.Join("test", "TestUnsetConditionalFormat.xlsx")))
 }
@@ -469,9 +469,9 @@ func TestSetCellStyle(t *testing.T) {
 	// Test set cell style on not exists worksheet
 	assert.EqualError(t, f.SetCellStyle("SheetN", "A1", "A2", 1), "sheet SheetN does not exist")
 	// Test set cell style with invalid style ID
-	assert.EqualError(t, f.SetCellStyle("Sheet1", "A1", "A2", -1), newInvalidStyleID(-1).Error())
+	assert.Equal(t, newInvalidStyleID(-1), f.SetCellStyle("Sheet1", "A1", "A2", -1))
 	// Test set cell style with not exists style ID
-	assert.EqualError(t, f.SetCellStyle("Sheet1", "A1", "A2", 10), newInvalidStyleID(10).Error())
+	assert.Equal(t, newInvalidStyleID(10), f.SetCellStyle("Sheet1", "A1", "A2", 10))
 	// Test set cell style with unsupported charset style sheet
 	f.Styles = nil
 	f.Pkg.Store(defaultXMLPathStyles, MacintoshCyrillicCharset)

table_test.go

@@ -45,7 +45,7 @@ func TestAddTable(t *testing.T) {
 	assert.NoError(t, f.SaveAs(filepath.Join("test", "TestAddTable.xlsx")))
 
 	// Test add table with invalid sheet name
-	assert.EqualError(t, f.AddTable("Sheet:1", &Table{Range: "B26:A21"}), ErrSheetNameInvalid.Error())
+	assert.Equal(t, ErrSheetNameInvalid, f.AddTable("Sheet:1", &Table{Range: "B26:A21"}))
 	// Test addTable with illegal cell reference
 	f = NewFile()
 	assert.Equal(t, newCoordinatesToCellNameError(0, 0), f.addTable("sheet1", "", 0, 0, 0, 0, 0, nil))
@@ -64,13 +64,13 @@ func TestAddTable(t *testing.T) {
 		{name: "\u0f5f\u0fb3\u0f0b\u0f21", err: newInvalidNameError("\u0f5f\u0fb3\u0f0b\u0f21")},
 		{name: strings.Repeat("c", MaxFieldLength+1), err: ErrNameLength},
 	} {
-		assert.EqualError(t, f.AddTable("Sheet1", &Table{
+		assert.Equal(t, cases.err, f.AddTable("Sheet1", &Table{
 			Range: "A1:B2",
 			Name:  cases.name,
-		}), cases.err.Error())
+		}))
-		assert.EqualError(t, f.SetDefinedName(&DefinedName{
+		assert.Equal(t, cases.err, f.SetDefinedName(&DefinedName{
 			Name: cases.name, RefersTo: "Sheet1!$A$2:$D$5",
-		}), cases.err.Error())
+		}))
 	}
 	// Test check duplicate table name with unsupported charset table parts
 	f = NewFile()
@@ -115,9 +115,9 @@ func TestDeleteTable(t *testing.T) {
 	assert.NoError(t, f.DeleteTable("Table2"))
 	assert.NoError(t, f.DeleteTable("Table1"))
 	// Test delete table with invalid table name
-	assert.EqualError(t, f.DeleteTable("Table 1"), newInvalidNameError("Table 1").Error())
+	assert.Equal(t, newInvalidNameError("Table 1"), f.DeleteTable("Table 1"))
 	// Test delete table with no exist table name
-	assert.EqualError(t, f.DeleteTable("Table"), newNoExistTableError("Table").Error())
+	assert.Equal(t, newNoExistTableError("Table"), f.DeleteTable("Table"))
 	// Test delete table with unsupported charset
 	f.Sheet.Delete("xl/worksheets/sheet1.xml")
 	f.Pkg.Store("xl/worksheets/sheet1.xml", MacintoshCyrillicCharset)
@@ -164,10 +164,10 @@ func TestAutoFilter(t *testing.T) {
 	}
 
 	// Test add auto filter with invalid sheet name
-	assert.EqualError(t, f.AutoFilter("Sheet:1", "A1:B1", nil), ErrSheetNameInvalid.Error())
+	assert.Equal(t, ErrSheetNameInvalid, f.AutoFilter("Sheet:1", "A1:B1", nil))
 	// Test add auto filter with illegal cell reference
-	assert.EqualError(t, f.AutoFilter("Sheet1", "A:B1", nil), newCellNameToCoordinatesError("A", newInvalidCellNameError("A")).Error())
+	assert.Equal(t, newCellNameToCoordinatesError("A", newInvalidCellNameError("A")), f.AutoFilter("Sheet1", "A:B1", nil))
-	assert.EqualError(t, f.AutoFilter("Sheet1", "A1:B", nil), newCellNameToCoordinatesError("B", newInvalidCellNameError("B")).Error())
+	assert.Equal(t, newCellNameToCoordinatesError("B", newInvalidCellNameError("B")), f.AutoFilter("Sheet1", "A1:B", nil))
 	// Test add auto filter with unsupported charset workbook
 	f.WorkBook = nil
 	f.Pkg.Store(defaultXMLPathWorkbook, MacintoshCyrillicCharset)

vml_test.go

@@ -35,7 +35,7 @@ func TestAddComment(t *testing.T) {
 	// Test add comment on not exists worksheet
 	assert.EqualError(t, f.AddComment("SheetN", Comment{Cell: "B7", Author: "Excelize", Paragraph: []RichTextRun{{Text: "Excelize: ", Font: &Font{Bold: true}}, {Text: "This is a comment."}}}), "sheet SheetN does not exist")
 	// Test add comment on with illegal cell reference
-	assert.EqualError(t, f.AddComment("Sheet1", Comment{Cell: "A", Author: "Excelize", Paragraph: []RichTextRun{{Text: "Excelize: ", Font: &Font{Bold: true}}, {Text: "This is a comment."}}}), newCellNameToCoordinatesError("A", newInvalidCellNameError("A")).Error())
+	assert.Equal(t, newCellNameToCoordinatesError("A", newInvalidCellNameError("A")), f.AddComment("Sheet1", Comment{Cell: "A", Author: "Excelize", Paragraph: []RichTextRun{{Text: "Excelize: ", Font: &Font{Bold: true}}, {Text: "This is a comment."}}}))
 	comments, err := f.GetComments("Sheet1")
 	assert.NoError(t, err)
 	assert.Len(t, comments, 2)
@@ -57,7 +57,7 @@ func TestAddComment(t *testing.T) {
 	assert.Len(t, comments, 0)
 
 	// Test add comments with invalid sheet name
-	assert.EqualError(t, f.AddComment("Sheet:1", Comment{Cell: "A1", Author: "Excelize", Text: "This is a comment."}), ErrSheetNameInvalid.Error())
+	assert.Equal(t, ErrSheetNameInvalid, f.AddComment("Sheet:1", Comment{Cell: "A1", Author: "Excelize", Text: "This is a comment."}))
 
 	// Test add comments with unsupported charset
 	f.Comments["xl/comments2.xml"] = nil
@@ -105,7 +105,7 @@ func TestDeleteComment(t *testing.T) {
 	assert.Len(t, comments, 0)
 
 	// Test delete comment with invalid sheet name
-	assert.EqualError(t, f.DeleteComment("Sheet:1", "A1"), ErrSheetNameInvalid.Error())
+	assert.Equal(t, ErrSheetNameInvalid, f.DeleteComment("Sheet:1", "A1"))
 	// Test delete all comments in a worksheet
 	assert.NoError(t, f.DeleteComment("Sheet2", "A41"))
 	assert.NoError(t, f.DeleteComment("Sheet2", "C41"))

xmlWorksheet.go

@@ -424,12 +424,12 @@ type xlsxDataValidations struct {
 	DisablePrompts bool                  `xml:"disablePrompts,attr,omitempty"`
 	XWindow        int                   `xml:"xWindow,attr,omitempty"`
 	YWindow        int                   `xml:"yWindow,attr,omitempty"`
-	DataValidation []*DataValidation `xml:"dataValidation"`
+	DataValidation []*xlsxDataValidation `xml:"dataValidation"`
 }
 
 // DataValidation directly maps the single item of data validation defined
 // on a range of the worksheet.
-type DataValidation struct {
+type xlsxDataValidation struct {
 	AllowBlank       bool          `xml:"allowBlank,attr"`
 	Error            *string       `xml:"error,attr"`
 	ErrorStyle       *string       `xml:"errorStyle,attr"`
@@ -442,8 +442,8 @@ type DataValidation struct {
 	ShowInputMessage bool          `xml:"showInputMessage,attr,omitempty"`
 	Sqref            string        `xml:"sqref,attr"`
 	Type             string        `xml:"type,attr,omitempty"`
-	Formula1         string  `xml:",innerxml"`
+	Formula1         *xlsxInnerXML `xml:"formula1"`
-	Formula2         string  `xml:",innerxml"`
+	Formula2         *xlsxInnerXML `xml:"formula2"`
 }
 
 // xlsxC collection represents a cell in the worksheet. Information about the
@@ -835,6 +835,24 @@ type xlsxX14Sparkline struct {
 	Sqref string `xml:"xm:sqref"`
 }
 
+// DataValidation directly maps the settings of the data validation rule.
+type DataValidation struct {
+	AllowBlank       bool
+	Error            *string
+	ErrorStyle       *string
+	ErrorTitle       *string
+	Operator         string
+	Prompt           *string
+	PromptTitle      *string
+	ShowDropDown     bool
+	ShowErrorMessage bool
+	ShowInputMessage bool
+	Sqref            string
+	Type             string
+	Formula1         string
+	Formula2         string
+}
+
 // SparklineOptions directly maps the settings of the sparkline.
 type SparklineOptions struct {
 	Location      []string