OnCommand | RadGrid for ASP.NET AJAX Documentation
Edit this page


Telerik.Web.UI.GridCommandEventArgs OnCommand Property


To get or set property values for client API properties, you must call property accessor methods that are named with the get_ and set_ prefixes. For example, to get or set a value for a property such as cancel, you call the get_cancel or set_cancel.

This event will be raised for each grid command which is about to be triggered (sorting, paging, filtering, editing, etc.) before postback/ajax request except hierarchy/grouping expand/collapse action. The event can be intercepted in order to perform a certain operation in the grid via web service or to detect what type of command is raised on the client.

Fired by RadGrid
Arguments commandName - the name of the command which is about to be processed commandArgument - the command argument(s) value(s) tableView - returns reference to the owner TableView
Can be canceled Yes, set eventArgs.set_cancel(true) to cancel


<telerik:RadGrid RenderMode="Lightweight" ID="RadGrid1" runat="server">
        <ClientEvents OnCommand="RaiseCommand" />
function RaiseCommand(sender, eventArgs)
    //retrieve the current commandName and commandArgument
    var result = String.format("CommandName: {0}, CommandArgument: {1}", eventArgs.get_commandName(), eventArgs.get_commandArgument());

    if (<some_custom_condition_not_met>)
        eventArgs.set_cancel(true); //cancel the command

How to prevent loss of user input in batch editing mode

function OnCommand(sender, args) {
    var tableView = args.get_tableView();
    var batchEditingManager = sender.get_batchEditingManager();
    var isDirty = batchEditingManager.hasChanges(tableView);
    var commandName = args.get_commandName();
    //allow the user to cancel changes always
    //if there are changes allow the user only to save changes 
    var shouldAllowOperation = commandName == "RebindGrid" || !(isDirty && commandName != "BatchEdit");

Is this article helpful? No Yes
Thank you for your feedback!

Give article feedback

Tell us how we can improve this article