[C#]
this.diagram1.Model.BeginUpdate();
//Some code here
this.diagram1.Model.EndUpdate();
private void button1_Click(object sender, EventArgs e)
{
this.newdiagram.Model.BeginUpdate();
if (this.newdiagram.Controller.Model == model1)
{
this.newdiagram.AttachModel(model2);
((CustomDiagramController)this.newdiagram.Controller).Model = this.model2;
}
if (this.newdiagram.Controller.Model == model2)
{
this.newdiagram.AttachModel(model2);
((CustomDiagramController)this.newdiagram.Controller).Model = this.model1;
}
this.newdiagram.Model.EndUpdate();
this.newdiagram.Refresh();
}