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Setting combobox's dropdownstyle does not allow combobox to lose focus when tabbing out

Hi all,

I am using .NET 1.1 and ran across and problem. The requirement is when the combobox is focused, it displays the drop down list. Otherwise, it's style is set to simple.

The problem is that whenever I set the dropdownstyles of the combobox, focus is immediately returned to the combobox. For example, in the lostfocus or leave event handler, I set the dropdownstyle to simple and yet, the combobox still havefocus when I try to tab out of it. Tabbing should be to the next control.

Can anyone suggest a way around this that can still meet the requirement mentioned? Or is there a patch for 1.1 that solves this? Thanks.

Felix Chung Tuesday, May 20, 2008 8:08 PM

Hi Felix Chung,

I can reproduce this issue with your description and I have to admit that the behavior is less desirable. To feedback this issue in a formal way, could you please go to our Connect portal site and submit it?

https://connect.microsoft.com/VisualStudio/

In your feedback, you can quote the URL to this thread, so that the whole conversation can be available. Every feedback submitted will be evaluated carefully by our engineers. They will let you know their comments further through that portal. It would be great if you can also paste the link to the submitted feedback here, so that other community members can see it as well.

One possible workaround is to use the Control.BegineInvoke to avoid this issue.

Code Snippet

private void comboBox1_Leave(object sender, EventArgs e)

{

this.comboBox1.BeginInvoke(new MethodInvoker(MyMethod));

}

void MyMethod()

{

this.comboBox1.DropDownStyle = ComboBoxStyle.Simple;

}

Hope this helps.
Best regards.
Rong-Chun Zhang

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