fyiReporting.RdlDesign.RdlDesigner.Insert_Click C# (CSharp) Method

        private void Insert_Click(object sender, EventArgs e)
        {
            if (ctlInsertCurrent != null)
                ctlInsertCurrent.Checked = false;

            ToolStripButton ctl = (ToolStripButton)sender;
            ctlInsertCurrent = ctl.Checked ? ctl : null;

            MDIChild mc = this.ActiveMdiChild as MDIChild;
            if (mc == null)
                return;
            mc.SetFocus();

            mc.CurrentInsert = ctlInsertCurrent == null ? null : (string)ctlInsertCurrent.Tag;
        }