GridControl.ValidateCell Event
Enables you to specify whether the focused cell’s data is valid, and whether the cell’s editor can be closed.
Namespace: DevExpress.WinUI.Grid
Assembly: DevExpress.WinUI.Grid.v23.2.dll
NuGet Package: DevExpress.WinUI
Declaration
Event Data
The ValidateCell event's data class is GridCellValidationEventArgs. The following properties provide information specific to this event:
| Property | Description |
|---|---|
| CellValue | Gets the cell’s old valid value. |
| Column | Gets the column that contains the processed cell. |
| ErrorContent | Gets or sets an object that describes the validation error. Inherited from ValidationEventArgs. |
| ErrorType | Gets or sets the error icon type. Inherited from ValidationEventArgs. |
| IsValid | Gets or sets a value which specifies whether the value is valid. Inherited from ValidationEventArgs. |
| Row | Gets the processed row. Inherited from GridRowValidationEventArgs. |
| RowHandle | Gets the processed row’s handle. Inherited from GridRowValidationEventArgs. |
| UpdateSource | Gets the action that caused the validation. Inherited from ValidationEventArgs. |
| Value | Gets the editor’s value. Inherited from ValidationEventArgs. |
The event data class exposes the following methods:
| Method | Description |
|---|---|
| SetError(Object, ErrorType) | Marks the processed input value as invalid and displays an error within the editor with the specified error icon type. Inherited from ValidationEventArgs. |
| SetError(Object) | Marks the processed input value as invalid and displays an error within the editor. Inherited from ValidationEventArgs. |
Remarks
The ValidateCell event occurs before the focused cell’s modified value is posted to a data source, allowing to manually validate its new value.
The focused cell’s new value is returned by the event’s CellValue property.
See Also