win文本框只能输入数字(共2页).doc

精选优质文档-倾情为你奉上.net(c#) winform文本框只能输入数字,不能其他非法字符C#的winform中控制TextBox中只能输入数字（加上固定位数和首位不能为0)(KeyPress事件)给个最简单的方法：private void textBox3_KeyPress(object sender, System.Windows.Forms.KeyPressEventArgs e) /阻止从键盘输入键 e.Handled = true; if(e.KeyChar=0 & e.KeyChar =9) e.Handled = false; /支持退格Backspace键if (e.KeyChar = (char)0x08) e.Handled = false; 或者private void tbID_KeyPress(object sender, Ke