C#的TextBox控件輸入測試
只允許輸入數字的測試:
代碼如下: (VS2005)

public TextBoxInputCheck(object sender, KeyPressEventArgs e,INPUTTYPE type)


...{

if(type == INPUTTYPE.INT)


...{

string pattern = @"^[0-9]";

Regex reg = new Regex(pattern);

if ((!reg.Match(e.KeyChar.ToString()).Success) && (e.KeyChar.ToString() != ""))


...{

e.Handled = true;

}

}

else if(type == INPUTTYPE.FLT)


...{

string pattern = @"^[0-9]|.$";
Regex reg = new Regex(pattern);

if ((!reg.Match(e.KeyChar.ToString()).Success) && (e.KeyChar.ToString() != ""))


...{

e.Handled = true;

}

else if (e.KeyChar.ToString() == "." && (sender as TextBox).Text.IndexOf(''.'') > 0)


...{

e.Handled = true;

}

}

}