Problem positioning controls within a panel with autoscroll=true

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From: strcmp (strcmp_at_discussions.microsoft.com)
Date: 01/24/05

  • Next message: hberenguel: "Re: Forms with no title bar - Microsoft Money 2005" 
    Date: Mon, 24 Jan 2005 12:55:59 -0800

    I don't know if this is a bug or if I am doing something wrong, but hopefully
    somebody could help me.
    I have a panel with autoscroll=true, and I am trying to position controls
    within it, however they don't position correctly.
    According to MS's documentation Panel.Left "Gets or sets the distance, in
    pixels, between the left edge of the control and the left edge of its
    container's client area."

    Here's the sample code for you to reconstruct it real quick.
    Essentially its a form with a panel with autoscroll=true,
    a textbox of any size outside of the panel,
    and a button with the following click event handler.

    int x = 0;
    int y = 0;

    private void button1_Click(object sender, System.EventArgs e)
    {
            TextBox f = new TextBox();
            f.Size = textBox1.Size;
            f.Multiline = true;
            panel1.Controls.Add(f);
            f.Left = x1;
            f.Top = y1;
            //f.Location = new Point(x1, y1);
            
            x1 += 100;
            y1 += 100;
            panel1.Refresh();
    }

    It should draw textboxes diagonally toward the right, with a scrollbar
    eventually appearing. However, if you move the horiz/vert. scrollbars any
    bit after creating a few of these diagonal boxes, it jumps a huge gap, then
    creates the textbox. What I think should be happening is that it should
    create a lot of textboxes diagonally with no gaps between them regardless of
    whether or not the scrollbars have been moved at all. I have tried using the
    commented out location line above and I have tried setting the positions
    before adding it into the panel. Nothing has worked for me so far.
      
    Thanks

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