I also stole this code from a friend, I have not tested it, but he says it works correctly.

private void InfoQuestionUserControl_Paint(object sender, PaintEventArgs e)

{

SuspendLayout();

double numberOfRows = 1;

if (_painted == false)

{

SizeF size = e.Graphics.MeasureString(Question, _lblInfoQuestion.Font);

if (size.Width > _lblInfoQuestion.Width)

{

numberOfRows = Math.Floor(size.Width/_lblInfoQuestion.Width);

if ((_lblInfoQuestion.Width % size.Width) > 0)

{

numberOfRows++;

}

}

_lblInfoQuestion.Height = (int)(numberOfRows * _lblInfoQuestion.Height);

Height = _lblInfoQuestion.Height + 2;

_painted = true;

}

ResumeLayout();

}

Hope this helps!!!

Thanks for the comment Stuart!

-Jeff

Here’s a workaround (in C# sorry, but should be easy to convert ). This produces EXACTLY the right height of control. It also accounts for line wrap and empty text boxes:

private const int EM_GETLINECOUNT = 0xBA;

[DllImport("user32.dll", CharSet = CharSet.Auto, SetLastError = false)]
static extern IntPtr SendMessage(IntPtr hWnd, uint Msg, IntPtr wParam, IntPtr lParam);

private void ReSizeTextBox()
{
int iRequiredRows = SendMessage(this.textBox.Handle, EM_GETLINECOUNT, IntPtr.Zero, IntPtr.Zero).ToInt32();
int iRequiredHeight = iRequiredRows * this.textBox.Font.Height;
int iDiffHeight = iRequiredHeight – this.textBox.ClientSize.Height;
if (iDiffHeight != 0)
{
this.textBox.Height += iDiffHeight;
}
}

Now just call the above OnTextChanged and OnClientSizeChanged for the TextBox and you are done.