ColumnBase.ShowValidationAttributeErrors Property
Gets or sets whether or not error icons are displayed within column cells that fail validation specified by the Data Annotations attribute(s). This is a dependency property.
Namespace: DevExpress.Xpf.Grid
Assembly: DevExpress.Xpf.Grid.v18.2.Core.dll
Declaration
Property Value
| Type | Description |
|---|---|
| DefaultBoolean | A DefaultBoolean enumeration value that specifies whether or not error icons are displayed within column cells that fail validation. |
Available values:
| Name | Description |
|---|---|
| True | Corresponds to a Boolean value of true. |
| False | Corresponds to a Boolean value of false. |
| Default | The value is determined by the current object’s parent object setting (e.g., a control setting). |
Remarks
The WPF Grid and TreeList controls support DataAnnotations attributes that specify data validation rules (to use data annotation attributes, reference the System.ComponentModel.DataAnnotations assembly).
By default, the grid (or treelist) displays error icons (
) within cells with invalid values, and provides error descriptions displayed as tooltips (see the image below). In this instance, the cell focus cannot be moved to another cell until the cell’s value is corrected.
To override the default behavior and hide errors, set the ShowValidationAttributeErrors property to false. If the ShowValidationAttributeErrors property is set to DefaultBoolean.Default, the visibility of error icons is specified by the view’s DataViewBase.ShowValidationAttributeErrors property.
To learn more, see Attributes-Based Validation.