how to go second tab inside div tab using c# coding.

Question

 Hey Friends,

    Now I am facing such a problem  . In ASP.NET using c# developing a web form in 4 steps ,first one is Employee details , second tab file upload and last one is final submit.

     My problem is that when uploading a file using fileupload control the tab automatically reset into first tab control.

 

 

Asp.net form code-----

<div style=" margin: 0 auto; padding-bottom: 20px; padding-left: 0px; width: 1000px;">

<ul class="tabs">

<li><a id="one" runat="server" href="#view1">Employee details <asp:Image ID="Image1" runat="server" ImageUrl="~/pics/Man.png" /></a></li>

<li style="width:100px"><a id="two" runat="server" href="#view2">file upload <asp:Image ID="Image28" runat="server" ImageUrl="~/pics/woman.png"/></a></li>

<li><a id="three" runat="server" href="#view3">Final Submit<asp:Image ID="Image2" runat="server" ImageUrl="~/pics/receipts.png" Height="20px" Width="18px"/></a></li>

</ul>

<div class="tabcontents1">

<div id="view3" style="width:980px" class="tabcontents1">

<div style="text-align:left"><h4>File Upload-</h4>

</div>

<%-- 1st File Upload --%>

<div class="form-group has-success" style="margin-top: 30px; margin-bottom: 30px">

<label for="Photo" class="col-md-7">Age Certificate <span class="req">*</span>

</label>

<div class="col-md-3">

<asp:FileUpload ID="Upload1" runat="server" TabIndex="55" />

<asp:HyperLink ID="Link1" runat="server" Font-Bold="False" Font-Names="Times New Roman" Font-Size="Small" Visible="False"></asp:HyperLink>

<asp:Image ID="Img1" runat="server" Visible="False" />

</div>

<div class="col-md-2">

<asp:Button ID="btnUpload1" runat="server" Text="Upload Here" class="btn btn-primary btn-sm" TabIndex="56" CausesValidation="False" OnClick="btnUpload1_Click" />

</div>

</div>

<%-- End of 1st File Upload --%>

</div> 

 

 

Using C# Code ---

/* Add dynamically css attribute to anchor tag */

ContentPlaceHolder M1 = Page.Master.FindControl("ContentPlaceHolder1") as ContentPlaceHolder;

var a1 = M1.FindControl("Tab3") as HtmlAnchor;

a1.Attributes["class"] = "selected";

/* End */

 

please help me how to control tab index after postback..