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Read value of Label which is inside the ListView

Posted By:      Posted Date: October 05, 2010    Points: 0   Category :ASP.Net

How to Read value of Label which is inside the ListView?

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Accessing Label Control In a listview using Javascript



I have a Button and Label nested inside a ListView.

When a User clicks the button i want the Label to display a specific value eg"Pass". Of course being a Listview the Label value will be relevant to the row the button was clicked on.

I want all this to happen on client side, but i am struggling to access the Label via my Javascript??

Any suggestions and examples Would be much appreciated..

Cannot access Label inside Repeater - "Object reference not set..."


I have a button on a page with a Repeater and an ObjectDataSource. To give credit where credit is due, the Repeater's paging functionality is courtesy of ScottGu. (However, I'm using ASP.NET 4.0 and SQL Server 2008, as opposed to ASP.NET 2.0 and SQL Server 2005.)

Anyway, in the button's click event, I need to access the Text property of a Label that's inside the Repeater because it's used as an input parameter in a stored procedure. I'm getting a NullReferenceException when trying to access the Label's Text property. I have researched this error and have tried a few different solutions (involving FindControl and the Repeater's ItemDataBound event), but I haven't been able to get it to work. Any suggestions, in VB or C#, would be greatly appreciated. The code is below.


<asp:Repeater ID="rptText" runat="server" DataSourceID="tbsDataSource">
<table width="100%" cellspacing="1">
<%-- some rows removed for brevity --%>

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Editmode on GridView inside of ListView

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Get value of a label control inside the DetailsView

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disable autopostback of checkbox inside of GridView during SelectedIndexChanged of ListView

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Finding a control inside a ListView on a master page

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?

change the color of label control inside gridview


Hi i am saving color as a string in database 

i have a gridview control

 <asp:GridView ID="GridView1" runat="server" AutoGenerateColumns="False" OnRowUpdating="Update_Schedule"
                    OnRowDeleting="Delete_Schedule" OnPageIndexChanging="OnPaging" OnRowEditing="Edit_Schedule"
                    OnRowCancelingEdit="CancelEdit" PageSize="10">
                                <asp:CheckBox ID="Todo" runat="server" AutoPostBack="true" Height="23px" OnCheckedChanged="CheckedChanged" />
                                <asp:HiddenField ID="hdn_ScheduleID" runat="server" Value='<%#Eval("ID") %>' />
                                <asp:Label Text='<%# Eval("Title") %>' runat="server" ID="lbl1"></asp:Label>

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"

change the forecolor of a text block inside a listView


Hello I'm new to WPF

I have a list view as follows:




<ListView Name

Events for ListView inside ListView


I have a master/detail type scenario where I need to have a dynamic number of text headings, each followed by a group of checkboxes and other text under each heading. Something like this:


Heading 1

   checkbox, text1, text2

   checkbox, text1, text2

   checkbox, text1, text2


Heading 2

   checkbox, text1, text2

   checkbox, text1, text2


All of the sub items under each heading have to be lined up in columns, so I am currently implementing them as a listview with styles that hide the grid and column headers. I am also implementing the outer headings as a listview that contains the other listview.


The problem I'm having is that I need to handle the Check events on the checkboxes, but when I add these events to the checkboxes on the inner listview I get a NullReferenceException thrown when I start the app. I also need to be able to get access to the inner listview from the outer one. I gave the inner one a Name but I can't reference it from the code behind.


The more pressing issue the Check event one. I really need to find a way to get that to work. Here is the code:


<Window x:Class="WpfApplication4.MainWindow"

ListView Inside ListView InsertItemTemplate



I try to datbind a listview which is inside another listview InsertItemTemplate.

         <%# Eval("Name") %>

I'm binding the listivew in the parent listview onitemcreated events. I receive the error

Databinding methods such as Eval(), XPath(), and Bind() can only be used in the context of a databound control.

Any thoughts?

DataPager works inside ListView, but not outside


I have a ListView that uses an ObjectDataSource

When I add a DataPager control INSIDE the ListView, it works fine and the ListView's PagePropertiesChanging event fires.

When I move the DataPager OUTSIDE the ListView control and set its PagedControlID to the ListView, it stops working and the ListView's PagePropertiesChanging event no longer fires.

i.e. This works (and the ListView's PagePropertiesChanging fires):

        <asp:ListView ID="lvItems" runat="server" DataSourceID="dsItems" ItemPlaceholderID="itemPlaceholder">

on dropdown selection label display respected value inside gridview



Here i am using dropdown that will retrive from database when i will select an item from dropdownlist then item rate display on the selection of dropdown item name.

how will do this???


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