protected void TextBox2_TextChanged(object sender, EventArgs e)//Check if password is valid. { if (ValidatePassword(PwdTxt.Text)) { this.PwdTxt.Attributes.Add("value", PwdTxt.Text); PwdTxt.BorderColor = System.Drawing.Color.Black; } else { PwdTxt.BorderColor = System.Drawing.Color.Red; PwdTxt.Focus(); } }