Convert dynamic DIV to image and download in ASP.Net using jQuery

Hi mukesh1,

Refer below code.

HTML

<script type="text/javascript" src="https://ajax.googleapis.com/ajax/libs/jquery/1.8.3/jquery.min.js"></script>
<script type="text/javascript" src="https://cdnjs.cloudflare.com/ajax/libs/html2canvas/0.4.1/html2canvas.js"></script>
<script type="text/javascript">
    function ConverToImage(btnExport) {
        document.getElementById('<%=lblSelectedDivClass.ClientID%>').style.display = "block";
        var divId = document.getElementById('<%=lblSelectedDivClass.ClientID%>').innerText;
        if (divId == "") {
            alert("Please Select Template First");
            return false;
        }
        document.getElementById('<%=lblSelectedDivClass.ClientID%>').style.display = "none";
        html2canvas($("." + divId), {
            onrendered: function (canvas) {
                var imgsrc = canvas.toDataURL();
                $('#hdnImage').attr('value', imgsrc);
                __doPostBack(btnExport.name, "");
            }
        });
        return false;
    }
</script>
<div class="dvTable" style="width: 340px; background-color: White; padding: 5px">
    <u>Customer Records</u>
    <br />
    <br />
    <table cellspacing="0" rules="all" border="1" style="border-collapse: collapse;">
        <tr>
            <th scope="col" style="width: 90px;">Customer Id
            </th>
            <th scope="col" style="width: 120px;">Name
            </th>
            <th scope="col" style="width: 120px;">Country
            </th>
        </tr>
        <tr>
            <td>1</td>
            <td>John Hammond</td>
            <td>United States</td>
        </tr>
        <tr>
            <td>2</td>
            <td>Mudassar Khan</td>
            <td>India</td>
        </tr>
        <tr>
            <td>3</td>
            <td>Suzanne Mathews</td>
            <td>France</td>
        </tr>
        <tr>
            <td>4</td>
            <td>Robert Schidner</td>
            <td>Russia</td>
        </tr>
    </table>
</div>
<br />
<asp:Button ID="btnDownload" runat="server" Text="Download" OnClick="btnDownload_Click" OnClientClick="return ConverToImage(this)" UseSubmitBehavior="false" />
<asp:HiddenField ID="hdnImage" ClientIDMode="Static" runat="server" />
<asp:Label ID="lblSelectedDivClass" Style="display: none;" runat="server" Text="dvTable"></asp:Label>

Screenshot