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Old March 23rd, 2013, 03:40 PM
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Default How to set and modify session variable using TextBox in javascript

In asp.net , I set session variable .Then pass it to javascript for modification .
In javascript I can read session variable value and return modified value in TextBox1 .
In asp.net again , I receive modified session variable value and store it in session variable .


protected void Page_Load(object sender, EventArgs e)
{
Session["MyTest"] = "abcd";

String csname = "OnSubmitScript";
Type cstype = this.GetType();

// Get a ClientScriptManager reference from the Page class.
ClientScriptManager cs = Page.ClientScript;

// Check to see if the OnSubmit statement is already registered.
if (!cs.IsOnSubmitStatementRegistered(cstype, csname))
{
string cstext = " document.getElementById(\"TextBox1\").value = getMyvalSession() ; ";
cs.RegisterOnSubmitStatement(cstype, csname, cstext);
}

if (TextBox1.Text.Equals("")) { }
else {
Session["MyTest"] = TextBox1.Text;
}

}


<html xmlns="http://www.w3.org/1999/xhtml">
<head runat="server">

<script language=javascript type="text/javascript">
function getMyvalSession() {

var txt = "efgh";
var ff = '<%=Session["MyTest"] %>' + txt;
return ff ;
}
</script>

</head>
<body>

<form id="form1" runat="server">
<div>
<asp:TextBox ID="TextBox1" runat="server" AutoPostBack=true ></asp:TextBox>
<input type="submit" value="Submit" />
</div>
</form>
</body>
</html>
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