How to show Edit Column only If the RadGrid is Editable

[Piet]

How can I show the Edit Column only if the RadGrid is Editable?

I'm using DotNetNuke and only a few users have permission to edit the grid.

<telerik:GridEditCommandColumn ButtonType="ImageButton"
                        UniqueName="EditCommandColumn" Visible="false"/>

[Foenix]

Handle RadGrid's ItemCreated event.

protected void rgAccessGroup_ItemCreated(object sender, GridItemEventArgs e)
{
    if (e.Item is GridEditableItem && UserHasNoEditRights)
    {
        ((GridEditableItem)e.Item)["UniqueNameOfGridEditCommandColumn"].Enabled = false;
    }
}

Of course, you have to replace UserHasNoEditRights and UniqueNameOfGridEditCommandColumn with your values/variables.
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Ok, it was not exactly what do you want. More accurate answer to your question is:

protected void rgAccessGroup_ItemCreated(object sender, GridItemEventArgs e)
{
    if (e.Item is GridEditableItem && UserHasNoEditRights)
    {
        ((GridEditableItem)e.Item)["EditCommandColumn"].Visible = false;
    }
}