private void toolStripMenuItemDiagramAlignLeft_Click(object sender, EventArgs e)
{
foreach(DocDefinition docDef in this.ctlExpressG.Multiselection)
{
docDef.DiagramRectangle.X = ((DocDefinition)this.ctlExpressG.Selection).DiagramRectangle.X;
this.ctlExpressG.LayoutDefinition(docDef);
}
this.ctlExpressG.Redraw();
}