Trigger UpdatePanel From ImageButton in GridView

protected void gvData_RowCreated(object sender, GridViewRowEventArgs e)
        {
            if (e.Row.RowType == DataControlRowType.DataRow)
            {
                ImageButton ibTrue = (ImageButton)e.Row.FindControl("imgButtonTrue");                
                if (ibTrue != null) ScriptManager.GetCurrent(this.Page).RegisterAsyncPostBackControl(ibTrue);

                ImageButton ibFalse = (ImageButton)e.Row.FindControl("imgButtonFalse");                
                if (ibFalse != null) ScriptManager.GetCurrent(this.Page).RegisterAsyncPostBackControl(ibFalse);
            }
        }

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