Pass data from one page and read on another page using JavaScript

 Hi Amol111,

Please take reference the below code and correct your code.

You can send data from one page to another page using QueryString. Refere below example.

HTML

CS.aspx

Name:
<input type="text" id="txtName" name="Name" /><br />
<br />
<input type="button" id="btnSubmit" onclick="SendData()" value="Submit" /><br />
<script type="text/javascript" language="javascript">
    function SendData() {
        var name = document.getElementById("txtName").value;
        window.location = "Default.aspx?name=" + name;
    }
</script>

Code

Default.aspx.cs

protected void Page_Load(object sender, EventArgs e)
{
    Response.Write(Request.QueryString["name"]);
}

Screenshot