数字文本框在C＃中 - WPF [英] Numeric TextBox in C# - WPF

问题描述

我要创建WPF一个文本框只接受数字...
我已经reaserched和别人说用按键事件或屏蔽文本框，但它们在Windows窗体...

i want to create a textbox in WPF that only accept numbers... i've reaserched and people say to use keypress event or masked textbox, but they are in windows forms...

推荐答案

有关WPF：

private void textBox1_PreviewTextInput(object sender, TextCompositionEventArgs e)
{
    if (!char.IsDigit(e.Text, e.Text.Length - 1))
        e.Handled = true;
}

有关WF：

private void textBox1_KeyPress(object sender, KeyPressEventArgs e)
{
    if (!char.IsDigit(e.KeyChar) )
        e.Handled = true;
}

这篇关于数字文本框在C＃中 - WPF的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！