fyiReporting.RdlDesign.RdlDesigner.fxExpr_Click C# (CSharp) Метод

        void fxExpr_Click(object sender, EventArgs e)
        {
            MDIChild mc = this.ActiveMdiChild as MDIChild;
            if (mc == null ||
                mc.DesignTab != DesignTabs.Design || mc.DrawCtl.SelectedCount != 1 ||
                mc.Editor == null)
                return;

            XmlNode tn = mc.DrawCtl.SelectedList[0];

            using (DialogExprEditor de = new DialogExprEditor(mc.DrawCtl, ctlEditTextbox.Text, tn))
            {
                // Display the UI editor dialog
                if (de.ShowDialog(this) == DialogResult.OK)
                {
                    ctlEditTextbox.Text = de.Expression;
                    mc.Editor.SetSelectedText(de.Expression);
                    SetProperties(mc);
                }
            }
        }