wpf-devexpress-dot-xpf-dot-editors-dot-validationeventargs-809070ef.md
Gets or sets a value specifying whether the value is valid.
Namespace : DevExpress.Xpf.Editors
Assembly : DevExpress.Xpf.Core.v25.2.dll
NuGet Package : DevExpress.Wpf.Core
public bool IsValid { get; set; }
Public Property IsValid As Boolean
| Type | Description |
|---|---|
| Boolean |
true if the value is valid; otherwise, false.
|
Use the IsValid property to specify whether a new value meets your validation criteria, and can be posted to the editor.
If the entered value is not valid, set the IsValid property to false. In this instance, this value will not be posted to the editor and an error icon defined by the ValidationEventArgs.ErrorType, will be displayed within the editor. The error description (error tooltip) can be specified using the ValidationEventArgs.ErrorContent property.
The following code snippets (auto-collected from DevExpress Examples) contain references to the IsValid 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.
if(e.RowHandle == GridControl.NewItemRowHandle) {
e.IsValid = !string.IsNullOrEmpty(((Product)e.Row).ProductName);
e.Handled = true;
wpf-data-grid-validate-cell-editors/CS/ValidateCell_CodeBehind/MainWindow.xaml.cs#L36
e.IsValid = false;
e.ErrorType = DevExpress.XtraEditors.DXErrorProvider.ErrorType.Critical;
If e.RowHandle = DataControlBase.NewItemRowHandle Then
e.IsValid = Not String.IsNullOrEmpty(CType(e.Row, Product).ProductName)
e.Handled = True
wpf-data-grid-validate-cell-editors/VB/ValidateCell_CodeBehind/MainWindow.xaml.vb#L41
If discount > 0 AndAlso discount <= 30 Then Return
e.IsValid = False
e.ErrorType = DevExpress.XtraEditors.DXErrorProvider.ErrorType.Critical
See Also