CODEWITHSUNDEEP
listviewtooltiptopmost
Eric
Eric

Reputation: 3283

(WinForms) ListView shows tooltips behind its own form when form is topmost

I have a Form with just a ListView in it. The ListView is set to show tooltips for subitems (in Details view). The tool tip shows fine if the form is not top most. When I set the Form's TopMost to true, the tool tip appears "behind" the window.

Is there any other property/combination of properties that need to be set in order to get the tool tip to show as usual, over the form?

Upvotes: 1

Views: 742

Answers (2)

Dmitriy K
Dmitriy K

Reputation: 1

The solution is to disable TopMost mode when the form is active:

 private void Form_Deactivate(object sender, EventArgs e)
  {
      this.TopMost = true;
  }

  private void Form_Activated(object sender, EventArgs e)
  {
      this.TopMost = false;
  }

Upvotes: 0

Michael Todd
Michael Todd

Reputation: 17071

That appears to be either a) by design or b) a bug (depending upon who you believe and what you read about this issue).

Since ToolTips are essentially TopMost windows and your Form is a TopMost window, there is a bit of contention at the O/S level as to what to really show as TopMost.

See here: http://www.itags.org/dotnet/169331/

Upvotes: 0

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