这个我用过的代码很久就在我的笔记里，不知道我从哪里来提供参考和信用:)。试试这个。

（document）.ready（ function （）{

（ ＃ Empid）。keydown（ function （e）{
// 检查退格，删除，制表，转义，输入，不限制
如果（

<input type = "text" runat="server" id="Empid" Placeholder = "Employee id">


In run mode as follows

Employee id ( numbers only allowed)

for that how can i do please help me.

What I have tried:

how to make input tag numbes only allowed

this the code i had used long back was in my notes, not sure where i had got from to provide the reference and credit :). Try this.

(document).ready(function() {

("#Empid").keydown(function (e) { // Check for backspace, delete, tab, escape, enter, do not restrict that if (