TreeListSettings.NodeValidating Property

Enables you to specify whether node data is valid, and whether the node can be updated.

Namespace: DevExpress.Web.Mvc

Assembly: DevExpress.Web.Mvc5.v19.2.dll

Declaration

C#

public TreeListNodeValidationEventHandler NodeValidating { get; set; }

VB.NET

Public Property NodeValidating As TreeListNodeValidationEventHandler

Property Value

Type	Description
TreeListNodeValidationEventHandler	An TreeListNodeValidationEventHandler delegate method allowing you to implement custom processing.

Remarks

Implement a TreeListNodeValidationEventHandler delegate method and assign it to the NodeValidating property. For more implementation details, refer to the TreeListNodeValidationEventHandler delegate description.

Note

Use the NodeValidating property to provide custom error text. The actual validation logic should be implemented in the code of the controller as described in the Validation article.