Hi All,

I'm playing with the code provided with the following MSDN Magazine article:
This does not work -- I still see no grid but snap lines instead.
Please -- what am I missing?

Thanks!

I believe it is:

---

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Thanks for your suggestion Marcel

dos.Options["WindowsFormsDesigner"] was turning into null, so I implemented a simple DesignerOptionService like this:

usingSystem;

usingSystem.Windows.Forms.Design;

namespaceShell

{

classMyDesignerOptionService:WindowsFormsDesignerOptionService

{

publicMyDesignerOptionService():base()

{

}

protectedoverridevoidPopulateOptionCollection(DesignerOptionCollectionoptions)

{

if(options.Parent==null)

{

DesignerOptionCollectionwfd=this.CreateOptionCollection(options,"WindowsFormsDesigner",null);

DesignerOptionsdesignerOptions=newDesignerOptions();

designerOptions.GridSize=newSystem.Drawing.Size(100,20);

designerOptions.SnapToGrid=true;

designerOptions.UseSnapLines=false;

designerOptions.ShowGrid=true;

designerOptions.UseSmartTags=true;

DesignerOptionCollectionwfdg=this.CreateOptionCollection(wfd,"General",designerOptions);

}

}

}

}

So the CustomInitialize() became looking like this:

privatevoidCustomInitialize()

{

_hostSurfaceManager=newHostSurfaceManager();

_hostSurfaceManager.AddService(typeof(IToolboxService),this.toolbox1);

_hostSurfaceManager.AddService(typeof(ToolWindows.SolutionExplorer),this.solutionExplorer1);

_hostSurfaceManager.AddService(typeof(ToolWindows.OutputWindow),this.OutputWindow);

_hostSurfaceManager.AddService(typeof(System.Windows.Forms.PropertyGrid),this.propertyGrid1);

//Mychangesstart:

DesignerOptionServicedos=newShell.MyDesignerOptionService();

_hostSurfaceManager.AddService(typeof(IDesignerOptionService),dos);

//endMychanges

codeDomDesignerLoaderMenuItem_Click(null,null);

this.tabControl1.SelectedIndexChanged+=newEventHandler(tabControl1_SelectedIndexChanged);

//this.noLoaderMenuItem_Click(null,null);

this.basicDesignerLoaderMenuItem_Click(null,null);

}

No effect... No grid visible and no snapping to grid...
Any idea how to make it work?

Thanks!
Happy New Year?

Martin,

Thanks for the kind reply. I did implement the steps as you described. The below is my DesignerOptions and DesignerOptionService implementation (benefited from this forum)

using System;
using System.Windows.Forms;
using System.Windows.Forms.Design;
using System.ComponentModel.Design;

namespace MyDesignerHost
{
public class AtlasOptionServiceProvider : IServiceProvider
{
private DesignerOptionService dos = new OptionService();

#region IServiceProvider Members

public object GetService(Type serviceType)
{
if (serviceType == typeof(DesignerOptionService))
{
return dos;
}
return null;
}

#endregion

private class OptionService : DesignerOptionService
{
protected override void PopulateOptionCollection(DesignerOptionCollection options)
{
if (options.Parent == null)
{
base.CreateOptionCollection(options, "DesignerOptions", new Options());
}
}
}

private class Options : DesignerOptions
{
public override bool UseSmartTags
{
get
{
return true;
}
}

public override bool UseSnapLines
{
get
{
return false;
}
}

public override bool ShowGrid
{
get
{
return true;
}
}
}

}
}

Then I added the service in the designerhost implementation:

AtlasOptionServiceProvider aosp = new AtlasOptionServiceProvider();
designerOptionService = aosp.GetService(typeof(DesignerOptionService)) as DesignerOptionService;
serviceContainer.AddService(typeof(DesignerOptionService), designerOptionService);

The smartTag feature still cannot be activated. However, the snapline and showgrid feature works as expected. I have no clue at this point what went wrong. Could you please shed more light on this, preferably with some code demo. Thank you!

Alan

source: http://social.msdn.microsoft.com/Forums/en-US/winformsdesigner/thread/e08ef80a-75b8-4229-b53c-2f16ff07dbd3