officefileapi-devexpress-dot-spreadsheet-dot-datavalidation-28397fce.md
Gets or sets the message displayed in the error dialog invoked when data validation fails.
Namespace : DevExpress.Spreadsheet
Assembly : DevExpress.Spreadsheet.v25.2.Core.dll
NuGet Package : DevExpress.Spreadsheet.Core
string ErrorMessage { get; set; }
Property ErrorMessage As String
| Type | Description |
|---|---|
| String |
A string that is the text of the dialog.
|
The following code snippet adds a new data validation rule and customizes the error dialog invoked when validation fails for the user’s input.
The customized dialog is shown in the image below.
workbook.LoadDocument("Documents\\DataValidation.xlsx");
Worksheet worksheet = workbook.Worksheets[0];
// Restrict data entry to a 5-digit number.
DataValidation validation = worksheet.DataValidations.Add(worksheet["B4:B11"], DataValidationType.Custom, "=AND(ISNUMBER(B4),LEN(B4)=5)");
// Show error message.
validation.ErrorTitle = "Wrong Employee Id";
validation.ErrorMessage = "The value you entered is not valid. Use 5-digit number for the employee ID.";
validation.ErrorStyle = DataValidationErrorStyle.Information;
validation.ShowErrorMessage = true;
// Highlight data validation ranges.
int[] MyColorScheme = new int[] { 0xFFC4C4, 0xFFD9D9, 0xFFF6F6, 0xFFECEC, 0xE9D3D3 };
for (int i = 0; i < worksheet.DataValidations.Count; i++)
{
worksheet.DataValidations[i].Range.FillColor = Color.FromArgb(MyColorScheme[i]);
}
workbook.LoadDocument("Documents\DataValidation.xlsx")
Dim worksheet As Worksheet = workbook.Worksheets(0)
' Restrict data entry to a 5-digit number.
Dim validation As DataValidation = worksheet.DataValidations.Add(worksheet("B4:B11"), DataValidationType.Custom, "=AND(ISNUMBER(B4),LEN(B4)=5)")
' Show error message.
validation.ErrorTitle = "Wrong Employee Id"
validation.ErrorMessage = "The value you entered is not valid. Use 5-digit number for the employee ID."
validation.ErrorStyle = DataValidationErrorStyle.Information
validation.ShowErrorMessage = True
' Highlight data validation ranges.
Dim MyColorScheme() As Integer = { &HFFC4C4, &HFFD9D9, &HFFF6F6, &HFFECEC, &HE9D3D3 }
For i As Integer = 0 To worksheet.DataValidations.Count - 1
worksheet.DataValidations(i).Range.FillColor = Color.FromArgb(MyColorScheme(i))
Next i
The following code snippets (auto-collected from DevExpress Examples) contain references to the ErrorMessage property.
Note
The algorithm used to collect these code examples remains a work in progress. Accordingly, the links and snippets below may produce inaccurate results. If you encounter an issue with code examples below, please use the feedback form on this page to report the issue.
validation.ErrorTitle = "Wrong Employee Id";
validation.ErrorMessage = "The value you entered is not valid. Use 5-digit number for the employee ID.";
validation.ErrorStyle = DataValidationErrorStyle.Information;
validation.ErrorTitle = "Wrong Employee Id";
validation.ErrorMessage = "The value you entered is not valid. Use 5-digit number for the employee ID.";
validation.ErrorStyle = DataValidationErrorStyle.Information;
validation.ErrorTitle = "Wrong Employee Id";
validation.ErrorMessage = "The value you entered is not valid. Use 5-digit number for the employee ID.";
validation.ErrorStyle = DataValidationErrorStyle.Information;
validation.ErrorTitle = "Wrong Employee Id"
validation.ErrorMessage = "The value you entered is not valid. Use 5-digit number for the employee ID."
validation.ErrorStyle = DevExpress.Spreadsheet.DataValidationErrorStyle.Information
validation.ErrorTitle = "Wrong Employee Id"
validation.ErrorMessage = "The value you entered is not valid. Use 5-digit number for the employee ID."
validation.ErrorStyle = DataValidationErrorStyle.Information
See Also