public Form1()
{
InitializeComponent();
diagram1.BeginUpdate();
comboLytDirection.SelectedIndex = 0;
DiagramAppearance();
PopulateFields(SetDataSource());
this.diagram1.View.SelectionList.Clear();
SubgraphTreeLayoutManager subLayout = new SubgraphTreeLayoutManager(this.diagram1.Model, 0, 20, 50);
subLayout.LeftMargin = 100;
subLayout.TopMargin = 50;
subLayout.HorizontalSpacing = 75;
subLayout.VerticalSpacing = 50;
this.diagram1.LayoutManager = subLayout;
this.diagram1.LayoutManager.UpdateLayout(null);
txtHSpacing.Text = subLayout.HorizontalSpacing.ToString();
txtVSpacing.Text = subLayout.VerticalSpacing.ToString();
txtLMarigin.Text = subLayout.LeftMargin.ToString();
txtTMarigin.Text = subLayout.TopMargin.ToString();
chkAutoLayout.Checked = subLayout.AutoLayout;
diagram1.EndUpdate();
}
private void dialog_BeginLayout(SubgraphTreeLayoutManager layout)
{
this.diagram1.LayoutManager = layout;
Layouting();
}