ASP.NET中TextBox的KeyPress事件

Question

I'm trying to get KeyPress Event for TextBox in ASP.NET, so I found this script, but it does not works for me

<title></title>

    <script src="jquery.js" type="text/javascript"></script>
    <script type="text/javascript"  lang="js">
        $(function () {
            $("#<%=TextBox1.ClientID %>").keypress(function () {
                alert("Wow; Its Work!.")
            });
        });
    </script> 

</head>

Answer 1

your script is working very well the problem might be in jquery file its not found in the given location you can change the src for check

<script src="jquery.js" type="text/javascript"></script>

To

<script type="text/javascript" src="https://ajax.googleapis.com/ajax/libs/jquery/3.1.1/jquery.min.js"></script>

Answer 2

try this

<asp:TextBox ID="TextBox1" runat="server" onkeypress="myFunction()"></asp:TextBox>

 <script language="javascript">
    function myFunction()
    {
        alert('Key Press')
    }
</script>

Answer 3

Like Mostafa wrote, it is important to insert the script at the END of the page. So that the page can register the controls first.