VS 2010 Generates weird code.

Question

4.67/5 (3 votes)

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I'm currently developing my own TabControl and I am struggling to make it designer friendly.

My control is made of a class like this:

public class GlassTabControl : UserControl
{
    private GlassTabPageCollection _tabList = new GlassTabPageCollection();

    // the property
    [Browsable(true)]
    public GlassTabPageCollection TabPages 
    { 
        get { return _tabList; } 
        set { _tabList = value; } 
    }

}

After adding my GlassTabControl on a Form and adding a GlassTabPage to my collection through VS2010 designer I found the exact code in MyForm.Designer.cs:

//
// glassTabControl1
//
this.glassTabControl1.Location = new System.Drawing.Point(12, 80);
this.glassTabControl1.Name = "glassTabControl1";
this.glassTabControl1.Size = new System.Drawing.Size(352, 257);
this.glassTabControl1.TabIndex = 0;
this.glassTabControl1.TabMinimumHeight = 25;
new GlassTabControlUI.TabPagesCollection().Add(this.glassTabPage1);

As you can see the last line makes no sense and if I replace it with:

this.glassTabControl1.TabPages.Add(this.glassTabPage1);

works perfectly.

Sorry for such a long post and I'm eager to hear your opinion on why that code is generated.

PS: I tried cleaning the solution, restarting VS, etc.

Thanks,
Alex

Posted 8-Jun-11 14:06pm

Alex Culea

Updated 8-Jun-11 14:35pm

v2

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Comments

Sergey Alexandrovich Kryukov 8-Jun-11 20:46pm

Very hard to say without having of all the code. I don't like that auto-generated code but never saw that is generated gibberish. May be you even discover a defect in Visual Studio and/or ComponentModel. My 5 for the question. Basically, I would try to simplify down the component in big chunks and see what's going on...
--SA

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Ruard · Accepted Answer · 2011-06-08T19:56:00

Solution 1

Add the DesignerSerializationVisibility attribute:

C#

// the property
[Browsable(true)]
[DesignerSerializationVisibility(DesignerSerializationVisibility.Content)]
public GlassTabPageCollection TabPages 
{ 
  get { return _tabList; } 
  set { _tabList = value; } 
}

http://msdn.microsoft.com/en-us/library/system.componentmodel.designerserializationvisibilityattribute.aspx[^]

Posted 8-Jun-11 19:56pm

Ruard

Comments

Alex Culea 9-Jun-11 13:05pm

Your solution is the right answer to my problem, thanks a lot!

Sander Rossel 8-Jan-13 11:04am

Exactly what I was looking for!