private DesignSurfaceExt2 CreateDesignSurface()
{
//- step.0
//- create a DesignSurface and put it inside a Form in DesignTime
DesignSurfaceExt2 surface = new DesignSurfaceExt2();
//-
//-
IDesignSurfaceExt2 isurf = (IDesignSurfaceExt2)surface;
this._listOfDesignSurface.Add(isurf);
//- step.1
//- enable the UndoEngines
isurf.GetUndoEngineExt().Enabled = true;
//- step.2
//- try to get a ptr to ISelectionService interface
//- if we obtain it then hook the SelectionChanged event
ISelectionService selectionService = (ISelectionService)(isurf.GetIDesignerHost().GetService(typeof(ISelectionService)));
if (null != selectionService)
{
selectionService.SelectionChanged += new System.EventHandler(OnSelectionChanged);
}
//- step.3
//- Select the service IToolboxService
//- and hook it to our ListBox
ToolboxServiceImp tbox = isurf.GetIToolboxService() as ToolboxServiceImp;
if (null != tbox)
{
tbox.Toolbox = listBox1;
}
//-
//- finally return the Designsurface
return(surface);
}
private void newFormUseSnapLinesMenuItem_Click(object sender, EventArgs e)
{
TabPage tp = new TabPage("Use SnapLines");
this.tabControl1.TabPages.Add(tp);
int iTabPageSelectedIndex = this.tabControl1.SelectedIndex;
//- steps.1.2.3
DesignSurfaceExt2 surface = CreateDesignSurface();
//- step.4
//- choose an alignment mode...
((DesignSurfaceExt2)surface).UseSnapLines();
//- step.5
//- create the Root compoment, in these cases a Form
try {
Form rootComponent = null;
rootComponent = (Form)surface.CreateRootComponent(typeof(Form), new Size(400, 400));
rootComponent.Text = "Root Component hosted by the DesignSurface N." + iTabPageSelectedIndex;
rootComponent.BackColor = Color.Yellow;
//-
//-
//- step.4
//- display the DesignSurface
Control view = surface.GetView();
if (null == view)
{
return;
}
//- change some properties
view.Text = "Test Form N. " + iTabPageSelectedIndex;
view.Dock = DockStyle.Fill;
//- Note these assignments
view.Parent = tp;
//- finally enable the Drag&Drop on RootComponent
((DesignSurfaceExt2)surface).EnableDragandDrop();
}//end_try
catch (Exception ex) {
Console.WriteLine(Name + " the DesignSurface N. " + iTabPageSelectedIndex + " has generated errors during loading!Exception: " + ex.Message);
return;
}//end_catch
}