< TextBox Height="23" HorizontalAlignment="Left" Margin="100,5,0,0" Name="textBox1" VerticalAlignment="Top"
Width="120" DataObject.Pasting="textBox1_Pasting" PreviewKeyDown="textBox1_PreviewKeyDown"
InputMethod.IsInputMethodEnabled="False" PreviewTextInput="textBox1_PreviewTextInput"/ >
cs代码
//检测粘贴
private void textBox1_Pasting(object sender, DataObjectPastingEventArgs e)
{
if (e.DataObject.GetDataPresent(typeof(String)))
{
String text = (String)e.DataObject.GetData(typeof(String));
if (!isNumberic(text))
{ e.CancelCommand(); }
}
else { e.CancelCommand(); }
}
private void textBox1_PreviewKeyDown(object sender, KeyEventArgs e)
{
if (e.Key == Key.Space)
e.Handled = true;
}
private void textBox1_PreviewTextInput(object sender, TextCompositionEventArgs e)
{
if (!isNumberic(e.Text))
{
e.Handled = true;
}
else
e.Handled = false;
}
//isDigit是否是数字
public static bool isNumberic(string _string)
{
if (string.IsNullOrEmpty(_string))
return false;
foreach (char c in _string)
{
if (!char.IsDigit(c))
//if(c<‘0‘ c="">‘9‘)//最好的要领,不才面测试数据中再加一个0，，然后这种要领效率会搞10毫秒摆布
return false;
}
return true;
}