Persisting a Parent Page after displaying a Modalpopupextender with IFrame
<p>Scenario I have a Complex aspx page with Listviews. 
Many other button and controls coexist on the page.
In a given situation a Listview column entry might contain links.
Example assume a ListView row looks as follows:
<strong>[**C1 Adam   C2 UnderGrad   *<em>C3 Website</strong>  C4 Approved</em>*].** 
On Clicking <strong>C3 Website</strong> link a ModalPopup containing an iFrame displays the Website.
On Closing the Modal Popup returns to the Parent Page as expected. So far so good</p>

<p>Thereafter Any button I click on the parent page opens a new tab with the refreshed version of the page. Meaning the existing page remains and focus is on the new page opened in a New tab.</p>

<p>What I want is the Parent page should behave as normal as it was before opening the Modalpopupextender.</p>

<pre><code> &lt;asp:UpdatePanel ID="UpdatePanel5" runat="server"&gt;
                &lt;ContentTemplate&gt;
                    &lt;asp:HiddenField ID="HdnBtn" runat="server" /&gt;
                    &lt;asp:ModalPopupExtender ID="MPELabel" runat="server" DropShadow="true" BackgroundCssClass="modalBackground"
                        PopupControlID="PanelLabel" TargetControlID="HdnBtn"&gt;
                    &lt;/asp:ModalPopupExtender&gt;
                    &lt;asp:Panel ID="PanelLabel" runat="server" BorderStyle="Outset"
                        BorderColor="#999999" Style="display: none" Width="800px" Height="600px" 
                        HorizontalAlign="Center"
                        CssClass="modalPopup"&gt;
                        &lt;div class="lblheader"&gt;
                            &lt;asp:Label ID="Label2" runat="server" Font-Bold="True" Font-Size="Medium"
                             ForeColor="White"
                                Text="Label" Width="100%" Height="15px"&gt;&lt;/asp:Label&gt;&lt;/div&gt;
                        &lt;div class="lblcontent"&gt;
                            &lt;iframe id="lblFrame" runat="server" height="100%" width="100%"&gt;&lt;/iframe&gt;
                        &lt;/div&gt;
                        &lt;div class="lblfooter"&gt;
                            &lt;asp:Button ID="btnLblOk" runat="server" Text="Ok" /&gt;
                            &lt;asp:Button ID="BtnLblClose" runat="server" Text="Close" 
                            OnClick="HideLabelModalClick" /&gt;
                        &lt;/div&gt;
                    &lt;/asp:Panel&gt;
                &lt;/ContentTemplate&gt;

            &lt;/asp:UpdatePanel&gt;
</code></pre>
