[Solved] RadGrid RadContextMenu - conditionally show items

[John]

Hello,
I have a RadContextMenu attached to a RadGrid like shown in this demo: http://demos.telerik.com/aspnet-ajax/controls/examples/integration/gridandmenu/defaultcs.aspx?product=grid.

I would like to be able to conditionally disable/enable items in the ContextMenu based on a data element in the Grid.  How can I do this?  For example, if a field is "true", I would like to have a specific Context Menu Item enabled - otherwise it will be disabled.

Thanks!!

[Schlurk]

I was looking around and found this post that could help you out. You would of course have to modify what the condition is that disables/enables items, but the basic structure is there.

[John]

Interesting.  It seems the condition for that is the index of the row.  I'm looking to base the condition on a data element.  Any advice for that?  I'll hack away at the provided solution to see if I can figure it out, but if you have any guidance I would appreciate it.

[Schlurk]

I believe the function you should take a look at would be get_element():

function getGridDivElement()
{
  var grid= $find("<%= RadGrid1.ClientID %>")
  var gridDiv = grid.get_element();
}

This should be able to allow you to play around with the particular grid element that was clicked. For more info on the client-side events/functions/properties of the RadGrid check out the documentation.

[John]

Thanks for your help.  Here is how I got it working:

//This function handles dynamically enable/disabling and hiding/showing items in grid context menu...
            function SetDynamicItems(menu, dataItem) {
                //Set "Undecline Dealer" item...
                var menuItem = menu.findItemByText("Undecline Dealer");

                if (dataItem.getDataKeyValue("IsDeclined") == 'False') {
                    menuItem.hide();
                }
                else {
                    menuItem.show();
                }
            }

I called this before the menu.show method so I didn't get the blinking with items appearing or disappearing after the menu was shown.  This requires the developer to declare the fields in as ClientDataKeyNames.