.NET Tutorials, Forums, Interview Questions And Answers
Welcome :Guest
Sign In
Win Surprise Gifts!!!

Top 5 Contributors of the Month
Gaurav Pal
Post New Web Links

Finding a control inside a ListView on a master page

Posted By:      Posted Date: September 18, 2010    Points: 0   Category :ASP.Net
I have a listview on a master page that ISN'T part of a content place holder that I want to fill in and disable if the user is already logged in. I have a label set up already which works fine. I'm just having problems accessing a Textbox by the name of "NameTextBox" in the InsertItem template of the listview.Here is the part of my codefile:Dim vCurrentUser As MembershipUser = Membership.GetUser() If Not vCurrentUser Is Nothing Then Dim pnl As Label = LoginView1.FindControl("Label1") pnl.Text = Page.User.Identity.Name Dim NameBox As TextBox = ListView1.InsertItem.FindControl("NameTextBox") NameBox.Text = Page.User.Identity.Name End IfI get a Object not found exception. What is the correct way to find a control inside a InsertItemTemplate and the correct Event to use?

View Complete Post

More Related Resource Links

Finding control from master page inside tabcontainer in content page


I have a codebehind.vb for a master page from which I'm trying to find a hiddenfield in the content page. I was finding it like this without a hitch...

Dim hfContentSearch As HiddenField = CType(Page.Master.FindControl("main").FindControl("hfSearch"), HiddenField)

Then I decided to add an Ajax TabContainer to the content page. Now I'm having a hard time finding the hiddenfield. I've tried these variations, but still not working.

Dim hfContentSearch As HiddenField = CType(Page.Master.FindControl("main").FindControl("TabContainer1").FindControl("TabPanel1").FindControl("hfSearch"), HiddenField)

Dim hfContentSearch As HiddenField = CType(Page.Master.FindControl("main").FindControl("TabContainer1").FindControl("hfSearch"), HiddenField)

Dim hfContentSearch As HiddenField = CType(Page.Master.FindControl("main").FindControl("TabPanel1").FindControl("hfSearch"), HiddenField)

Can someone please help me with the syntax?

Thank you.


Printer Friendly Page from a listview control


Hi guys,

I am working on a web form that displays the data from an access data source into a list view control. I need an advice on how to create , render a new page printer freindly .not buttons, controls,,, I have implemented a  java script function to select which records I want to view in the printable page but I cannot came up with any idea on how  to use this to create the printable help..


Accessing User Control that is in a Master Page

I have looked everywhere for how to do this and all I come up with is threads describing how to expose public properties.  I have a USER CONTROL in my  Master page. It is a search box with a text box and a dropdown for search type (last name, account number, etc) and a search button.  When the user clicks the search button, I open a new page that displays the results.  How do I pass the values from the USER CONTROL search fields to the new page?  I would post code, but I have nothing to post yet since I don't know where to start. I have tried exposing the public property of the user control, but I don't know how to retrieve those values on the results page.  Anyone have any sample code on how this is done? Thank you in advance for your help!

Accessing a public property of a nested user control in a master page from a pages' user control

Hi  I've got a web site that has a master page and that master page (mpMaster that has a user control (ucControl1) which has a sub user control (ucControl2), this user control has a property which accepts a value. Now, I have a page that uses the master page and on this page I have another user control (ucPageControl), I need to  find a way of setting the value in ucControl2 from ucPageControl. Is this possible at all? Many thanks Ed

Page Up/Page Down scrolling behaviour with listview inside scrollviews


I have a listview with many list items that is contained within a scrollviewer.

When I select the topmost item and hit the Page Down key, the scrollviewer scrolls along with the listview. The same thing happens for combo boxes.

Is this the expected behaviour because I expected only the listview to scroll?

Here is some sample code:

<Window x:Class="WpfApplication1.Window1"

ConfirmButtonExtender and ModalPopupExtender Server Control with Master Page Failed to find element


I am in the process of building a server control that contains a ConfirmButtonExtender. This is my code:

The Master Page:

<%@ Master Language="VB" CodeFile="MasterPage.master.vb" Inherits="CBC_MasterPage" %>

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"><html xmlns="http://www.w3.org/1999/xhtml">
<head runat="server">
    <asp:ContentPlaceHolder id="head" runat="server">
    <form id="form1" runat="server">
        <asp:ContentPlaceHolder id="ContentPlaceHolder1" runat="server">

page inside update panel doesn't refresh the session object after postback of any control



I have many controls like dropdown, radiobuttonlist, etc on my page and I put all these controls inside the update panel so that the page doesn't look to be posting back when something is selected. Now the working on the page is very smooth. But the session object isn't getting refreshed even if I postback to the server and as a result even if the users are working on the page they are being sent to the login screen after 20 mins.

Is there anyway where I could put all the controls in update panel and still refresh the session after any postback(dropdown selection)

Any help is greatly appreciated.

Thanks in advance

referencing a user control in a master page



I have the following code which at the moment sits in a number of pages:

    private void ConfigureEmailSignup()
        ContentPlaceHolder cphBaseContent1 =
        if (cphBaseContent1 != null)
            Controls_Email_Signup emailSignUp =
            if (emailSignUp != null)
                emailSignUp.DisplayType = "store-list";
                // event log
            // event log

It sits in the page because I reference the usercontrol type 'emailSignUp' and pass data to an exposed variable 'DisplayType'.  The control is located in the pages master page. Ideally what i'd like to do is put this in its own class or something, so I can just call it passing the configuration variable, but I'm unsure how this would work - any advice would be appreciated.



How to use Navigation Hierarchy control with ListView Webpart on a custom web page?



Here is what i am trying to do with managed metadata and lists.

List name: MyList, it will have 2 managed metadata columns 'Business process' and 'Management model'. I have enabled metadata navigation settings for this list on mentioned columns

I will have a data view webpart mapped with MyList on one of the custom pages. I want to add Navigation Hierachy Control Or equivalent on this custom page which will be based on managed metadata columns 'Business process' and 'Management model'. On the selection of a node from this hierarchy, i would like to filter the ListView on the page.

Is there a way to directly use Navigation Hierarchy that we get on AllItems.aspx page corresponding to List? or any other out of the box method to achieve this WITHOUT custom code?

Thanks and regards,


Accessing the different controls inside a GridView control

how we can access a particular control which resides inside a GridView control. In this article I will show you how you can access different controls inside a GridView control. We will see how we can access a TextBox control, a DropDownList control and a ListBox control. If you are working with ASP.NET 1.X then you might want to check out my article Accessing Different Controls Inside a DataGrid.

How To Add calendar control inside a GridView

This article show hot to add calendar control inside a GridView with code in c#

Using ATLAS PopUp Control with Calendar inside the GridView Control

In this video tutorial Mohammad demonstrates how you can access the Calendar control which is displayed using the ATLAS PopUp control inside the GridView control.

GridView control to show master-child or master-slave data, written in c#, asp.net

I previously made a master slave datagrid using Visual Studio 2003 .Net (original article) that would allow users to show data to clients using collapse and expand features. These features however did not carry over to gridview for many users. This tutorial will explaing how to create a collapsable/expandable gridview in frameworks 2.0 and higher

Unique content within master page based on conditions met


 Hi all-

I would like to present users with unique content based on certain conditions being met as they land on the home page (default.aspx).  The condition logic will be in the VB code behind Page Load event. The content will go in a content placeholder as specificed from the master page. 

However, the content change wouldn't be something small (ie making a panel or label visible or not) but rather it will be different HTML,  Divs and databound gridview content.  The HTML content will be stored in the database.

Can someone point me in the right direction for best practices on how to accomplish this?


Building Re-Usable ASP.NET User Control and Page Libraries with VS 2008


I am having problems with a user control. I want my solution to have a separate project for holding my user controls.

The main project can get a reference to this user control project and can import this user control dll into my main project. 

Thanks in advance,

Dheeraj Mittal


Passing Linq Statement between master and content page


I usually work with windows forms, and am just starting to work with ASP.Net, so appologies if this is a dumb question!

I have a master page which has a search button on it. The results of this are built up using a Linq statement and if there are any results, I want to display the results in a contents page.

On the masterpage, I have the following code:

Private _res

    Public Overridable ReadOnly Property SearchRes()
            Return _res
        End Get
    End Property

 Private Sub DoSearch()
   'some code to get a linq result

    If res.Any Then
            _res = res
            Server.Transfer("SearchResults.aspx", True)
            'no results
            LabelNoRes.Visible = True
        End If
 End Sub

On the SearchResults.aspx page I have this code.

Dim m As pxSite = CType(Page.Master, MasterPage)
        If m.SearchRes IsNot Nothing Then
            Label1.Text = "Results found = " & m.SearchRes.Count
        End If

m.searchRes is always nothing. 

What am I doing wrong here?


how to get an array of all the asp.net textbox control inside create user wizard control?



How can I get all the textboxes inside a create user wizard control using getElementsByTagName().

Below is my JQuery code:

<script type="text/javascript">
        function addLoadEvent(func) {
            var oldonload = window.onload;
            if (typeof window.onload != 'function') {
                window.onload = func;
            } else {
                window.onload = function() {

        function prepareInputsForHints() {
            var inputs = document.getElementsByTagName("asp:TextBox");
            for (var i = 0; i < inputs.length; i++) {
                inputs[i].onfocus = function() {
                    this.parentNode.getElementsByTagName("span")[0].style.display = "inline";
                inputs[i].onblur = function() {
                    this.parentNode.getElementsByTagName("span")[0].style.display = "none";



<asp:ScriptManager ID="ScriptManager1" runat="server"></asp:ScriptManager>
ASP.NetWindows Application  .NET Framework  C#  VB.Net  ADO.Net  
Sql Server  SharePoint  Silverlight  Others  All   

Hall of Fame    Twitter   Terms of Service    Privacy Policy    Contact Us    Archives   Tell A Friend