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RadDock and DocumentWindow problem

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FrancoP asked on 06 Nov 2009, 05:14 PM

Good morning.

            I have a problem with the DocumentWindow in your RadDock class. I downloaded your RadControls for WinForms Q3 2009 release. I did the following steps:


  1. New project, WindowsForm Application (with Visual Basic 2008 Express Edition).
  2. Insert a RadDock.
  3. Insert a RadMenu, one item only (“Add”).
  4. Here is the code in the form:


Imports Telerik.WinControls.UI.Docking


Public Class Form1


  Private Sub RadMenuItem1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles RadMenuItem1.Click

    RadDock1.Visible = False


    Dim docW As DocumentWindow = New DocumentWindow("Test")

    Dim pnl As New Panel

    pnl.BorderStyle = BorderStyle.FixedSingle

    pnl.Dock = DockStyle.Fill




    RadDock1.Visible = True

  End Sub

End Class


I programmatically insert a new DocumentWindow with a Panel in it. If you omit instruction “RadDock1.Visible = False”, all is ok, otherwise the panel will overlap the tab. If you click the small down arrow on the right (it’s almost invisible) and select the window (Test), all returns ok.

In my application, obviously much more complicated, I need to make invisible the RadDock during certain operations. What can I do to solve this problem?


Thank you.

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Telerik team
answered on 11 Nov 2009, 12:51 PM
Hi FrancoP,

Thank you for contacting us.

Because the DocumentTabStrip is hidden when a document is added, a layout pass is not triggered and that is why the panel is not positioned properly. What you can do is after displaying RadDock to explicitly perform such layout pass:

private void radMenuItem2_Click(object sender, EventArgs e)
    this.radDock1.Visible = false;
    DocumentWindow doc = new DocumentWindow("Test");
    Panel p = new Panel();
    p.BorderStyle = BorderStyle.FixedSingle;
    p.Dock = DockStyle.Fill;
    p.Parent = doc;
    this.radDock1.Visible = true;

This will ensure that the layout is performed as needed.

I hope this helps. Do not hesitate to contact us if you have other questions.

the Telerik team

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