public override bool Initialize(bool sortingEnabled, Control control)
{
if (!_bInitialized)
{
// Become invisble if security conditions are not met
if (this.Visible)
{
this.Visible = ButtonEx.IsUserInAnyRole(control.Page.User, this.RolesRequired);
}
control.PreRender += new EventHandler(gv_PreRender);
_bInitialized = true;
}
return(base.Initialize(sortingEnabled, control));
}