我似乎无法让这个工作起来..在WP7上,就e.Key而言,'%'与'5'相同。我如何才能获得数字......
或者是否有一个开放式的WP7文本框控件可以像AJAX控件工具包一样工作,所以我可以说..这是一个TextBox ..只允许数字..?
if ((Keyboard.Modifiers & ModifierKeys.Control) == ModifierKeys.Control)
{
e.Handled = false;
return;
}
然后整个功能
private void HandleKeyEvent(KeyEventArgs e)
{
e.Handled = true;
if ((Keyboard.Modifiers & ModifierKeys.Control) == ModifierKeys.Control)
{
e.Handled = false;
return;
}
if (e.Key == Key.Back || e.Key == Key.Delete || e.Key == Key.Left || e.Key == Key.Right ||
e.Key == Key.D0 || e.Key == Key.D1 || e.Key == Key.D2 || e.Key == Key.D3 || e.Key == Key.D4 || e.Key == Key.D5 || e.Key == Key.D6 ||
e.Key == Key.D7 || e.Key == Key.D8 || e.Key == Key.D9 ||
e.Key == Key.NumPad0 || e.Key == Key.NumPad1 || e.Key == Key.NumPad2 || e.Key == Key.NumPad3 || e.Key == Key.NumPad4 || e.Key == Key.NumPad5 || e.Key == Key.NumPad6 ||
e.Key == Key.NumPad7 || e.Key == Key.NumPad8 || e.Key == Key.NumPad9)
{
e.Handled = false;
//return;
}
if ((e.Key == Key.Subtract || (e.Key == Key.Unknown && e.PlatformKeyCode == 189)) && base.SelectionStart == 0 && (base.Text.Length == 0 || base.Text[0] != '-'))
{
e.Handled = false;
}
if (this.Text.Length > 3)
{
e.Handled = true;
}
}