how to enable, disable textbox in c#?

int checker;

private void btnHideTextBox_Click((object sender, EventArgs e)
{

    if (checker%2 == 0)
      myTextBox.Enabled = false;
    else
      myTextBox.Enabled = true;

checker++;

}

Try this............

Even if Enabled did work - which I agree it doesn't appear to, but I haven't tested that much - it would probably confuse the user because it would still look like it should work.

Instead, use the ReadOnly property - that also grays the background so the user gets a visual cue that he can't enter information.

Hello

Add this code to TextChanged eventHandler:

private string previousText;
private void TextBox_TextChanged(object sender, EventArgs e)
{
  if (!this.TextBox.Enabled)
  {
    this.TextBox.Text = previousText;
    return;
  }
previousText = this.TextBox.Text;
}

Then the textBox likes enabled via code too!