ValidationEventArgs.ErrorContent Property

Gets or sets an object that describes the validation error.

Namespace: DevExpress.Xpf.Editors

Assembly: DevExpress.Xpf.Core.v20.2.dll

NuGet Packages: DevExpress.WindowsDesktop.Wpf.Core, DevExpress.Wpf.Core

Declaration

C#

public object ErrorContent { get; set; }

VB.NET

Public Property ErrorContent As Object

Property Value

Type	Description
Object	An object that represents the validation error’s content.

Remarks

Use the ErrorContent property to describe the validation error. This description is displayed within an error tooltip:

Related GitHub Examples

The following code snippets (auto-collected from DevExpress Examples) contain references to the ErrorContent 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.

C#

wpf-data-grid-validate-cell-editors/CS/DXGrid_ValidatingEditors/Window1.xaml.cs#L34

if (discount < 0) {
    e.ErrorContent = string.Format("The price cannot be greater than ${0}",
                                Convert.ToDouble(e.CellValue));

dxscheduler-for-wpf-complete-implementation-of-a-custom-edit-appointment-form-e3374/CS/CustomAppointmentForm.xaml.cs#L138

    e.IsValid = IsValidInterval(Controller.Start.Date, Controller.Start.Date.TimeOfDay, Controller.End.Date, ((DateTime)e.Value).TimeOfDay);
    e.ErrorContent = SchedulerLocalizer.GetString(SchedulerStringId.Msg_InvalidEndDate);
}

mvvm-how-to-use-validationrules-to-validate-values-entered-into-gridcontrol-e3233/CS/WpfApplication1/GridColumnValidationHelper.cs#L41

e.IsValid = false;
e.ErrorContent = result.ErrorContent;
break;

VB.NET

wpf-data-grid-validate-cell-editors/VB/DXGrid_ValidatingEditors/Window1.xaml.vb#L25

If discount < 0 Then
    e.ErrorContent = String.Format("The price cannot be greater than ${0}", Convert.ToDouble(e.CellValue))
    Return

mvvm-how-to-use-validationrules-to-validate-values-entered-into-gridcontrol-e3233/VB/WpfApplication1/GridColumnValidationHelper.vb#L47

e.IsValid = False
e.ErrorContent = result.ErrorContent
Exit For