how can i show ajax calender on listbox item click
<p>I have one listbox and one content box in update page. When user click particular item in listbox that time he should be look ajax calender that all wok this all code is written SelectedIndexChanged but problem is that when i click particualr item of listbox page is postbak and content box go to disable and its information also so how will i show content box also at that time also here is my code:</p>

<pre><code> protected void updatenewscat_SelectedIndexChanged(object sender, EventArgs e)
    {
       // Response.Write("hii");

        if (updatenewscat.SelectedItem.Text.ToString().Trim() == "Boxoffice Reports")
        {
            txtdate_added.Visible = true;
            lbldateadded.Visible = true;

        }
        else
        {
            txtdate_added.Visible = false;
            lbldateadded.Visible = false;

        }

    }
</code></pre>

<p><strong>aspx:</strong> </p>

<pre><code>&lt;asp:ListBox ID="updatenewscat" runat="server" SelectionMode = "Multiple" CssClass = "box" OnSelectedIndexChanged ="updatenewscat_SelectedIndexChanged" AutoPostBack="true"&gt;&lt;/asp:ListBox&gt;
</code></pre>
