telerik radgrid edit template validation process

version since was available for Silverlight only. It combines the two previous ones - InViewMode | InEditMode. If the RadGridView is initially loaded with an incorrect value, no error messages will be displayed.ĭefault: This is the default value. InEditMode: Denotes that RadGridView will perform validation only in edit mode.

InViewMode: Denotes that RadGridView will perform validation only in view mode. None: Denotes that RadGridView will not perform any validation. It may be set to one of the following values: RadGridView exposes a property - ValidatesOnDataErrors - that controls the way the data validation, provided by IDataErrorInfo and INotifyDataErrorInfo Interfaces, is performed. A few example of scenarios that are not supported are load-on-demand, complex control hierarchy (e.g., having several controls in the template), or any server operations.Figure 1: Standard appearance of RadGridView Keep in mind that such custom logic must be entirely client-side and that the built-in batch editing cannot guarantee it will not cause errors. Other events showcased in the Working with templates article that you can use for complex templates, objects and logic. OnBatchEditClosing and OnBatchEditClosed to get notified and prevent cells from closing. OnBatchEditCellValueChanging and OnBatchEditCellValueChanged to get notified of and/or cancel changes to cell values. The OnBatchEditOpening event that lets you prevent cells from being opened based on conditions, must like in the OnBatchEditOpened event. The OnBatchEditOpened event that lets you modify cell values and controls insides based on other conditions and cell values. The Batch Edit Manager API that lets you get/set cell values and open/close cells. To minimize this, use client-side validation and cancel the OnUserAction or OnCommand event in case the batch editing manager hasChanges() on the client.Ĭustom logic with the batch edit mode is usually written in JavaScript, however, and to this end you can use: Once a postback to the server has been initiated, the user input cannot be restored in the browser. It also shows how to access and modify the column editor properties on the server. If you want to implement your own CRUD operations instead of using declarative data sources, see the Batch Editing Server-side API article.

Telerik radgrid edit template validation process