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Load page in IFRAME based on TreeView node selection

, 8 Mar 2011 CPOL
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Load page in IFRAME based on TreeView node selection without postback.
This is helpful when you are using TreeView and IFRAME and you want to load a page in IFRAME according to selected value from TreeView.
<asp:TreeView ID="TreeView1" class="leftpaneltree" runat="server" ImageSet="Arrows"
                                        NodeIndent="7" ExpandDepth="0">
                                        <HoverNodeStyle Font-Underline="True" ForeColor="#5555DD" />
                                            <asp:TreeNode Text="User" Value="User" NavigateUrl="User/Users.aspx"
                                                <asp:TreeNode Text="Admin" Value="Admin" NavigateUrl="User/Admin.aspx">
                                                <asp:TreeNode Text="User" Value="User" NavigateUrl="User/User.aspx">
                                            <asp:TreeNode NavigateUrl="Department/Department.aspx" Text="Department"
                                                <asp:TreeNode NavigateUrl="Department/Sales.aspx" Text="Sales"
                                                <asp:TreeNode NavigateUrl="Department/Purchase.aspx" Text="Purchase"
                                                <asp:TreeNode NavigateUrl="Department/Marketing.aspx" Text="Marketing"
                                        <NodeStyle Font-Names="Tahoma" Font-Size="10pt" ForeColor="Black" HorizontalPadding="2px"
                                            NodeSpacing="0px" VerticalPadding="0px" />
                                        <ParentNodeStyle Font-Bold="False" />
                                        <SelectedNodeStyle Font-Underline="True" ForeColor="#5555DD" HorizontalPadding="0px"
                                            VerticalPadding="0px" />
 <script language="javascript" type="text/javascript">
        function assignTreeNodeEvent() {
            var tree = document.getElementById('<%=TreeView1.ClientID %>');
            var nodes = tree.getElementsByTagName('a');
            for (var n = 0; n < nodes.length; n++) {
                var url = nodes[n].getAttribute('href');
                if (url.indexOf(".aspx") > 3) {
                    nodes[n].setAttribute('href', '#');
                    var strclick = "changePage('" + url + "')";
                    nodes[n].setAttribute('onclick', strclick);
        function changePage(sTargetPage) {
            var frmPage = document.getElementById('iframeName');
            frmPage.src = sTargetPage;


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Sunasara Imdadhusen
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Comments and Discussions

GeneralHi! thank you. But a question. This part no found in IE. ... Pinmemberfense9-Feb-12 10:03 
Hi! thank you.
But a question.
This part no found in IE.
var strclick = "changePage('" + url + "')";
nodes[n].setAttribute('onclick', strclick);
I try with:
nodes[n].onclick = function () { var frmPage = document.getElementById('frame1'); frmPage.src = strclick; };
But, no found again.
This problem is in IE.
GeneralRe: Hi! thank you.But a question.This part no found in IE.... PinprofessionalSunasara Imdadhusen22-Apr-14 4:52 

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