IfcDoc.FormEdit.toolStripMenuItemDiagramAlignCenter_Click C# (CSharp) Method

        private void toolStripMenuItemDiagramAlignCenter_Click(object sender, EventArgs e)
        {
            foreach (DocDefinition docDef in this.ctlExpressG.Multiselection)
            {
                DocDefinition docSel = ((DocDefinition)this.ctlExpressG.Selection);
                docDef.DiagramRectangle.X = docSel.DiagramRectangle.X + docSel.DiagramRectangle.Width * 0.5 - docDef.DiagramRectangle.Width * 0.5;
                this.ctlExpressG.LayoutDefinition(docDef);
            }

            this.ctlExpressG.Redraw();
        }