GridControlBase.InvalidRowException Event
Fires when a row fails validation or when it cannot be saved to a data source.
Namespace: DevExpress.UI.Xaml.Grid
Assembly: DevExpress.UI.Xaml.Grid.v21.2.dll
NuGet Package: DevExpress.Uwp.Controls
Declaration
Event Data
The InvalidRowException event's data class is InvalidRowExceptionEventArgs. The following properties provide information specific to this event:
| Property | Description |
|---|---|
| ErrorText | Gets or sets the error description. |
| Exception | Gets the exception that raised the GridControlBase.InvalidRowException event. |
| ExceptionMode | Gets or sets a value that specifies how an exception should be handled. |
| Row | Gets the processed row. Inherited from RowEventArgs. |
| RowHandle | Gets the processed row’s handle. Inherited from RowEventArgs. |
| Source | Gets the grid that raised the event. Inherited from RowEventArgs. |
| WindowCaption | Gets or sets the error window’s caption. |
Remarks
Row validation is performed within the GridControl.ValidateRow event handler, when a row is about to lose focus. The InvalidRowException event allows you to override the default error presentation. This event occurs after the GridControl.ValidateRow event (provided that the focused row’s validation has failed).
Use the event parameter’s InvalidRowExceptionEventArgs.ExceptionMode property to specify the action performed in response to entering an invalid value. You can display a message box with an error description, suppress any action, throw an exception or discard new data and revert to an old value.