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How can I implement oncontextmenu via the csom?

I want to enable users to right click a cell (or row) and see a popup menu. I played with the activation event but it doesn't get fired if the user right clicked. It only gets fired when the user left clicks.

  • 28464


    Yes, I also could not find right-click / context menu events in the Activation / Selection behaviours, but this can easily be addressed by using some javascript CSOM. In this particular code snippet, I am assigning a client-side event for clicking on the first cells of the second row of the grid and checking for right-click. You can use this code to show custom context menu 

                var grid = $find("<%= WebDataGrid1.ClientID %>");
                var gridRow = grid.get_rows().get_row(2);
                gridRow.get_cell(0).get_element().onmouseup = function(e) {
                    if (!e)
                        e = window.event;

                    if (e.button == 2) {
                        alert("Right Click");

     Showing custom popup menu (using UltraWebMenu) is shown in this example:

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