Opening the HeaderContextMenu on a Button Click

[kencox]

Hi folks,

I really like the show/hide columns functionality built into the context menu (EnableHeaderContextMenu). However, I can't count on users to right-click to open the menu.

To cover myself, I'd like to put a button in the command area that will open the header context menu so they can see it.

As an alternative, I'd be interested in seeing sample code to implement the show/hide column checkboxes in a regular menu or dropdown. 

Thanks!

Ken

[Yavor]

Hi Ken,

You can show the menu, as demonstrated in the code snippet below:

<asp:Label runat="server" ID="Label1" Text="ShowContextMenu" onclick="ShowMenu();"></asp:Label>

<telerik:RadScriptBlock runat="server" ID="RadScriptBlock">

            <script type="text/javascript"> 
   
            function ShowMenu()
            {
            var RadGrid = $find("<%=RadGrid1.ClientID %>");           
            RadGrid.get_headerMenu().show(window.event);
            }

            </script>

        </telerik:RadScriptBlock>     

I hope this helps.

Regards,

Yavor
the Telerik team

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[Sandeep Trivedi]

Hi

When i clicked directly on  "ShowContextMenu" without clicking any where in header.It shows the context menu with all columns in unchecked state in columns menu and when i checked/unchecked the infant of columns name then radgrid is not refreshed .I want it show checked/unchecked columns in the basis on columns shows in rad grid.

Thanks
Sandeep Trivedi

[Yavor]

Hello Sandeep,

 In this case, you can use a standard RadMenu, which will be shown when clicking on the label. This will allow you to customize it either statically, or dynamically, when showing it.
I hope this is a feasible approach for you.

Regards,
Yavor
the Telerik team

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[Andrey]

How I can add action for show headercontextmenu.
for example:
I want open headercontextmenu using OnTouchMove.

Thanks!