private void doConvert()
{
decimal result = 0M;
decimal inputDecimal;
string input = txtInput.Text.Trim();
if (!input.Equals(""))
{
if (System.Text.RegularExpressions.Regex.IsMatch(input, "[^0-9.]") || !Decimal.TryParse(input, out inputDecimal))
{
MessageBox.Show(this, "Invalidate Input!!", "Message", MessageBoxButtons.OK, MessageBoxIcon.Warning);
txtInput.Text = txtInput.Text.Substring(0, txtInput.Text.Length - 1);
return;
}
result = contextConverter.doConvert(inputDecimal);
}
lbResult.Text = String.Format(new System.Globalization.CultureInfo("vi-VN", false), "{0:c}", result);
}
