Forms Data Controls :: Change Visibility Of Imagebutton To False Inside Listview Inside

Sep 18, 2010

I'm trying to change the visibility of a imagebutton to false, if the imagebutton.ImageUrl="". The problem is that the imagebutton is inside "ListView2", and "ListView2" is inside "ListView1". Who can I do this in vb code... or even a javascript.

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Forms Data Controls :: Access ImageButton Inside ListView?

Jul 19, 2010

see the following code. How do I access the imageButton (or any other control I may happen to have) within the listView? In this case, I'd like to change the image of the imagebutton based on certain conditions in the code behind file while the listview is being populated.


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Data Controls :: Change Image Of ImageButton Inside GridView Conditionally Based On Row Value?

Oct 17, 2013

if (!IsPostBack) {
string[] filePaths = Directory.GetFiles(Server.MapPath("~/PMRF/"));
List<ListItem> files = new List<ListItem>();
foreach (string filePath in filePaths) {
string ext = Path.GetExtension(filePath);
foreach (GridViewRow gr in GridView1.Rows)


i want the image of image button to change according to file extension . But its not working.

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Forms Data Controls :: Populating DropDownList Inside A ListView Inside A FormView

Jan 16, 2010

I have the following (abbreviated) code:

<asp:FormView ID="FormView1" runat="server" DataKeyNames="ItemID" DataSourceID="LinqDataSource1">
<asp:DropDownList ID="ddlCategory" runat="server" SelectedValue='<%# Eval("Category") %>'
DataSource="<%# GetCategories() %>" DataTextField="Text" DataValueField="Value" />
<asp:ListView ID="lvParticipants" runat="server" DataSource='<%# Eval("Participants") %>' >
<asp:DropDownList ID="ddlCountry" runat="server" SelectedValue='<%# Eval("Country") %>'
DataSource="<%# GetCountries() %>" DataTextField="Text" DataValueField="Value" />

When the FormView is in Edit mode, ddlCategory is populated as expected by calling GetCategories(), which returns a List of categories. However, when the ListView is in Insert mode, ddlCountry is empty. I put a break point in GetCountries(), but it never gets called. If I change the name of the method, I get an error. So it recognizes the method at compile time, but does not call it at run time. I'm guessing this is an embedded binding issue of some kind, but I'm hoping someone can save me a lot of time by pointing out the solution.

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Forms Data Controls :: Locate Autocompleteextender Inside Of Listview Inside Of Tabcontainer

Jan 25, 2010

I am loading the autocomplete extender properly but I need the PK from the selectedValue. I have looked at other examples and they do NOT show how to drill into the tabcontainer, then drill into the listview, and then locate the extender value. Here is what I have so far. My "TABCONTAINER" value shows the extender correctly but I am unable to locate it.


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Forms Data Controls :: Showing Linq Result Values Inside Dropdownlist Inside Listview

Jun 22, 2010

I have a listview that is showing its result by using a linq query. The linq query goes like this.


* db.Varer: Varer is a table that contains basic product information like proudct name, product nr. etc. ** a.fk_kategori_id == CatParamId : I'm just saying limit the result according to the Category ID (a.fk_kategori_id). The category id is coming from a dropdownlist (CatParamID) *** Join: Besides the Varer (Product) table I also have another table, Sizes. This Sizes table contains 6 columns (ID_Sizes (int) primary key and the columns: OneSize, S, M, L, XL, XXL all are bit (true or false)). There is a relationship between Varer table and Sizes table. It says that I can only insert a value into the "fk_sizes_id - column" of varer table if that value already exists as primary key within the Sizes table. **** I'm starting by picking basic product values like productId, ProductName etc from the Varer (a) table ***** Then I'm picking the corresponding Sizes values (onesize, s, m, ...) from the Sizes table. Now within my ListView I'm showing the above result by using Eval, like this.


And this works perfectly, but now comes the thing that is causing me trouble. I have the below drop down list (still within the ListView ItemTemplate):


I want this drop down list to be populated with only those of the "linq query's Sizes table result" that are true. By "Sizes table result" I mean these


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Web Forms :: How To Redirect To Another Page Using ImageButton Inside ListView

Jun 8, 2013

I am using Listview for displaying data from database. I add imagebutton now i want to redirect to another page.

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Data Controls :: Change Visibility Of Panel Based On Imagebutton Mouseover And Mouseout

Apr 27, 2016

How to change visibilty of panel based on imagebutton mouseover and mouseout here, i have panel1(Panel) and btnimg2(imagebutton) i want to show(Panel1.visibility=true) when mouseover happens on imagebutton and Panel1.visibility=false when mouseout on imagebutton

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Data Controls :: Access CheckBox Inside ListView Inside CheckChanged Event?

Feb 16, 2014

I need the ability to check a box and then store or remove the text of the checkbox clicked to my sql server database.  see my code below that is written in vb.

 <%@ Page Language="vb" AutoEventWireup="false" CodeBehind="SBN_Company_Cat_Types.aspx.vb" Inherits="ShopBuyName_Test_Site.SBN_Company_Cat_Types" %>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "">


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Forms Data Controls :: LinkButton Visibility Inside A Gridview?

Jun 9, 2010

I am new to C# and I have a LinkButton inside a gridview. I have been trying to set the myLinkButton.Visible property true or false depending on a database entry.Here is the code behind I have been working on:

protected void gvBalance_RowCommand(object sender, GridViewCommandEventArgs e)
if (e.Row.RowType == DataControlRowType.DataRow)


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How To Change Label Text/visibility When Inside A Datalist Or Repeater Using VB

Mar 19, 2010

aspects of some controls in Code Behind (VB) with controls inside a datalist and/or repeater. I have read a lot of stuff on using some tricks but none seem to work so far. I am new to so some of the explanations are too cryptic as well. Below is a section of code that I am trying to change. This example is attempting to make the label visible if the dataitem is true and hidden if false. No matter what I seem to do I cann't reference this label to change. I also want to change the text on some other controls in this dataitem if the returned value is a certain value.


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Forms Data Controls :: FindControl A Label Inside A ListView ItemTemplate Inside A GridView ItemTemplate On Button_Click?

Jan 17, 2011

I have something like this:


This does NOT work. What's wrong here?How do I accomplish my goal? I MUST use the Button1_Click event for this one.

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Forms Data Controls :: How To Datbind A Listview Which Is Inside Another Listview InsertItemTemplate

Sep 30, 2010

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


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.

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Forms Data Controls :: Using An UpdatePanel With Triggers On Imagebutton Inside A Datalist

Feb 22, 2010

I have a datalist that has an imagebutton, I want the updatepanel to trigger each click of the imagebutton of each result. How Can I do that?

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Forms Data Controls :: Can't Get Imagebutton Inside DataList ItemTemplate To Work

Aug 13, 2010

I have an img control that I am trying to replace with an image button.

I am using both for testing purposes. The img control generates the image, the imagebutton doesn't work


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Forms Data Controls :: Listview Inside Listview?

Feb 17, 2011

How to handle the itemcommand event for the inner listview, here is my code:


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Forms Data Controls :: Make TD Visible False Inside Repeater

Feb 10, 2010

I'm trying to make my TD visible or not inside a repeater. I keep getting an error "Object reference not set to an instance of an object". here is my code:


and my code behind:


I know it has something to do with how my findcontrol code is written, but I can't figure it out.

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Forms Data Controls :: Toggling Imagebutton Visibility Within A FormView?

Jul 9, 2010

I have a checkbox in a formview in "edit" mode. I want the check to fire an event and toggle a different command imagebutton based on the state of the checkbox. It doesn't seem to be working.

Heres my code.

My Checkbox with oncheckedchanged event


My two image buttons one visible one not visible on intial state


My event subrouting that toggles the button inside of the Formview1


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Forms Data Controls :: Mouseover On Imagebutton Inside Gridview Templatefield Triggers Server-side Events In FF?

Feb 3, 2011

In a gridview I have a TemplateField containing an imageButton defined as:

<HeaderStyle HorizontalAlign="Center" />
<asp:ImageButton ID="imgName" ImageUrl="./img/img.png" runat="server" style="cursor: crosshair;" OnClick="imgName_Click" />

Now the odd thing at run-time is, whenever a client-side mouseover event is triggered, the app does a full postback. That happens only in firefox.

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Data Controls :: Highlight ImageButton Inside GridView Or DataList When Clicked?

May 7, 2015

I am using datalist control in it I am using imgabutton control.When user click on any image that image should get highlighted. When user click on other image new image should highlighted and previous should become normal.I want to store index of selected image in a variable this index should change if user clickon other image.

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Forms Data Controls :: Find A Tag Inside ListView

Nov 19, 2010

I have a List view:


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Forms Data Controls :: Validation For Checkboxlist Inside Listview

Feb 24, 2011

I'm trying to do a validation for checkboxlist on a server side as all java approaches didn't work. However, probably due to the checklistbox is inside a listview the FindControl is empty. how to find a control inside a listview on a button click event when the button is outside of the listview.

ErrorMessage="* Please, select at least a one checkbox."
"Dynamic" />
Sub cblCustomValidator(ByVal objSource
As Object,
ByVal objArgs As ServerValidateEventArgs)
Dim chblAnswers As CheckBoxList = _
CType(lv_qstns.FindControl("chblAnswers"), CheckBoxList)
If CType(lv_qstns.FindControl("chblAnswers"), CheckBoxList)
IsNot Nothing
Then 'it's not working here as it cannot find the control inside a listview
Dim boolFlag As
Boolean = False
For Each li
As ListItem In chblAnswers.Items
If li.Selected Then
boolFlag = True
End If
If boolFlag Then
objArgs.IsValid = True
objArgs.IsValid = False
End If
End If
End Sub

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Forms Data Controls :: Editmode On GridView Inside Of ListView

Aug 31, 2010

I have a listview and inside the listview I have a gridview. I'm binding data to the listview, then on the listview itemdatabound I'm binding the gridview. I want to make the gridview editable so I have an edit template and an edit command button. I have the event rowediting and inside there I set the edit index. Now normally I rebind the control and everything works. But if I rebind this gridview, nothing happens.

I can trace through the rowediting and everything is working. It's setting the edit index, it goes through the databind and gets the right data and binds it to the control. What is happening? Why isn't my rebound edit mode gridview showing up?

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Forms Data Controls :: Check Value Of Checkboxes Inside Listview?

Feb 6, 2011

I have a ListView with a checkbox field inside that gets the id set dynamically.

I also have a button that when pressed needs to check if any of the checboxes have been checked but I'm not sure how to get this done.

This is my code:


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Forms Data Controls :: Use UserControl Inside An EditTemplate Of A ListVIew?

Oct 5, 2010

I have a ListView showing just a list of concatenated strings obtained from different field of the objects of the datasource.

A LinkButton (with CommandName="Edit") in each row Event handlers for OnItemDataBound and OnItemEditing

A UserControl in EditTemplate.

Now the problem is, I don't know how to use Bind expression in the UserControl. I mean, how to populate this usercontrol when the linkbutton is clicked? (I tried capturing the control in theOnItemEditing handler. But FindControl returned null, as that handler is called before going to edit mode.)

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