Changing WinForms TextBox to BorderStyle.None causes text to be cut off

Question

i\'ve changed a WinForms TextBox control to have no border.

When i do the bottom pixel row of text in the box is being cut off.

Top:

Answer 1

This seems to do the trick:

public Form2()
{
    InitializeComponent();
    textBox1.Multiline = true;
    textBox1.MinimumSize = new Size(0, 30);
    textBox1.Size = new Size(textBox1.Size.Width, 30);
    textBox1.Multiline = false;
}

Answer 2

The AutoSize property is there, just inherit from TextBox and you can get to the property:

public class TextBoxEx : TextBox {

  public TextBoxEx() {
    base.AutoSize = false;
  }

}

Answer 3

You can do this in your form:

    private void RefreshHeight(TextBox textbox)
    {
        textbox.Multiline = true;
        Size s = TextRenderer.MeasureText(textbox.Text, textbox.Font, Size.Empty, TextFormatFlags.TextBoxControl);
        textbox.MinimumSize = new Size(0, s.Height + 1);
        textbox.Multiline = false;
    }

Then you say RefreshHeight(textbox1);

Multiline change will force the textbox to "accept" the new size

Answer 4

You can also fix this in the Visual Studio Designer.

Change the height in the minimum size property for the text box. Change to multiline=true, then back to false. The text box will resize and stay fix.

No code changes needed.