ItemExpanding Property (DataMenuClientEvents)

Gets or sets javascript function name that will handle ItemExpanding event on the client

Syntax

Visual Basic

'Declaration
 
Public Property ItemExpanding As String

C#

public string ItemExpanding {get; set;}

Example

Visual Basic

WebDataMenu1.ClientEvents.ItemExpanding = "WebDataMenu1_ItemExpanding"

C#

WebDataMenu1.ClientEvents.ItemExpanding = "WebDataMenu1_ItemExpanding";

JScript

// The client event 'ItemExpanding' takes two parameters sender and e
// sender  is the object which is raising the event
// e is the DataMenuItemCancelEventArgs
function WebDataMenu1_ItemExpanding(sender, e) {
    //Gets the DataMenuItem object that is expanding
    var Item = e.getItem();

    //Gets the text of the expanding item

    var ItemText = Item.get_text();

    if (!confirm("Are you sure you want show child items under the item '"+ItemText+"'?"))
           //Cancels the ItemExpanding event
            e.set_cancel(true);


}

Requirements

Target Platforms: Windows 10, Windows 8.1, Windows 8, Windows 7, Windows Vista SP1 or later, Windows XP SP3, Windows Server 2008 (Server Core not supported), Windows Server 2008 R2 (Server Core supported with SP1 or later), Windows Server 2003 SP2