如何阻止或限制文本框中的特殊字符 [英] How to block or restrict special characters from textbox

问题描述

我需要从文本框中排除特殊字符(％，&，/，，'等)

I need exclude special characters (%,&,/,",' etc ) from textbox

有可能吗?我应该使用key_press事件吗?

Is it possible? Should I use key_press event?

string one = radTextBoxControl1.Text.Replace("/", "");
                string two = one.Replace("%", "");
                //more string
                radTextBoxControl1.Text = two;

在这种模式下非常长=(

in this mode is very very long =(

推荐答案

我假设您尝试仅保留字母数字和空格字符.添加这样的按键事件

I am assuming you are trying to keep only alpha-numeric and space characters. Add a keypress event like this

private void textBox1_KeyPress(object sender, KeyPressEventArgs e)
{
    var regex = new Regex(@"[^a-zA-Z0-9\s]");
    if (regex.IsMatch(e.KeyChar.ToString()))
    {
        e.Handled = true;
    }
}

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