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OnHierarchyCollapsing
Telerik.Web.UI.GridDataItemCancelEventArgs OnHierarchyCollapsing 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 is fired when the hierarchy is being collapsed and the HierarchyLoadMode is set to Client.
Fired by | RadGrid |
---|---|
Arguments | id - id of the RadGrid item that has raised the event itemIndexHierarchical - hierarchical index of the item that has raised the event gridDataItem - the corresponding data item tableView - owner TableView of the item that has raised the event dataKeyValues - data key value for the item that has raised the event domEvent - dom event that was raised for the current event |
Can be canceled | Yes, set eventArgs.set_cancel(true) to cancel |
Example:
ASP.NET
<telerik:RadGrid RenderMode="Lightweight" ID="RadGrid1" runat="server">
<ClientSettings>
<ClientEvents OnHierarchyCollapsing="HierarchyCollapsing" />
</ClientSettings>
</telerik:RadGrid>
JavaScript
function HierarchyCollapsing(sender, eventArgs) {
alert("Row: " + eventArgs.get_itemIndexHierarchical() + " is being collapsed");
}
get_gridDataItem() is not directly available on the client unless OnRowCreating/OnRowCreated events are hooked up. This is done for optimization purpose. If you need the rowIndex, you can use eventArgs.get_itemIndexHierarchical()