How to : Get asp:label value using jquery from client to server side

Introduction

 You can access label value using any event like button client click

<asp:Label ID="lbltext" runat="server" CssClass="cssTextLabel" Text="Test"></asp:Label>
<asp:Button ID="btnGetLabelData" runat="server" OnClientClick="GetData()" /> 

define javascript function like below.

<script type="text/javascript">
   function GetData() {
            var lbltxt = $.find('span.cssTextLabel')[0].innerHTML            
            __doPostBack('GET_DATA', lbltxt);

        }
</script>

handle postback in page load of page as below.

VB.Net

Protected Sub Page_Load(ByVal sender As Object, ByVal e As System.EventArgs) Handles Me.Load
        Dim strLblData As String = String.Empty
        If Request("__EVENTTARGET") = "GET_DATA" Then
            strLblData = Request("__EVENTARGUMENT").ToString()
            Response.Write(strLblData)
        End If
    End Sub

C#.Net

protected void Page_Load(object sender, System.EventArgs e)
{
    string strLblData = string.Empty;
    if (Request("__EVENTTARGET") == "GET_DATA") {
        strLblData = Request("__EVENTARGUMENT").ToString();
        Response.Write(strLblData);
    }
}

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