I'm trying to do a relatively simple thing, but just cannot get it to work. I'm trying to find a dropdownlist within a ListView ItemTemplate within Page_Load.
This is the code
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And this is the C#
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I have also tried without this > this.ListView1
I have something like this:
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This does NOT work. What's wrong here?How do I accomplish my goal? I MUST use the Button1_Click event for this one.
on SelectedIndexChanged event handling of DropDownList in ItemTemplate of ListView. I put OnSelectedIndexChanged="DropDownList1_SelectedIndexChanged" in mark up, with code behind, but only to get Compiler Error Message: BC30456: 'DropDownList1_SelectedIndexChanged' is not a member of 'ASP.webform1_aspx'. How do I make it a member? When I do not put OnSelectedIndexChanged="DropDownList1_SelectedIndexChanged" in mark up, BC30456 does not pop up, but nothing happens when dropdownlist selected item is changed.
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I got a problem about finding controls in Edit/Insert Itemtemplate inside a DetailsView.Here is the code.I put a Label (id= "Label6") to test whether the findcontrol method works or not. Unfortunately, I almost tried every means but still coudn't find it.
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how to do this when the checkbox in listview layout template check select all checkboxes in listview itemtemplate.I dont give 'Eval 'field to checkbox present in itemtemplate.
View 3 RepliesI have various difficulties handling dropdownlist in listview itemtemplate.Hopefully, resolving this example will help me understand how to make things work.I need to do several things upon DropDownList1_SelectedIndexChanged.(1) Fetch row index of listview then set the row as listview selected, or vice versa, in which dropdownlist was changed.(2) Fetch text of namelabel in that selected listview row.(3) Fetch selected text of dropdownlist in that selected listview row.
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At the moment...(1) Label1.Text = ListView1.SelectedIndex always shows '-1' regardless in which row dropdownlist is selected/changed.(2) Label2.Text = NL.Text pops 'Object reference not set to an instance of an object'.(3) Label3.Text = DDL1.SelectedItem.Text pops 'Object reference not set to an instance of an object'.
I stumbled into a problem which is that FindControl will only return a control in the ListView after the listview has been databound. Here is the code which is not working, and I'm getting the "Object reference not set to an instance of an object error" when I try to add the attribute to the control:
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Any ideas on how I can elegantly fix this?
I have ListView and in the ItemTemplate I have:
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in code behind I'm doing:
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I was wondering if there is a way to hide the ItemTemplate. I am using listview and would like to hide the itemtemplate when i am inserting a new record. Im not sure how to or if it is possible to do.
View 4 RepliesGiven the following code for a textbox in the EditItemTemplate of ListView:
TextBox txt = (TextBox)ListView.EditItem.FindControl("ImageURLTextBox");
How would we code for a textbox in the ItemTemplate of the same ListView?
I have listview where every item has a textbox and next to it a button if you want to update the item. I want that every textbox default button(pressing enter) is the one right next to it. So i have a panel(pnlInput) surrounding the textbox(txtQuantity) and the button (btnCart). If i do nothing in code behind the default button for every textbox is the button of the item that was first rendered.
But then i tried in codebehind
lstArticles_ItemDataBound
//Set default button right
Panel tmpPanel = (Panel)e.Item.FindControl("pnlInput");
Button tmpButton = (Button)e.Item.FindControl("btnCart");
tmpPanel.DefaultButton = tmpButton.ClientID;
But when i tried that i get the execption when the page is rendered that the default button for a panel needs to be of type ibuttoncontrol. I also tried UniqueID, but the same happens.
I want to pass the checked checkboxes value of my listview control to a second page so I can display the listview in this second page with only those selected records
this is what I am have so far , but dont really know how to get it to work the desire way.. Code is working but I am afraid that chekcbox and listview values for my loop are not correct
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I've got the following ListView (extra code removed for clarity) :
<asp:ListView ID="lvParticipants" runat="server" DataSource='<%# Eval("Participants") %>' >
<ItemTemplate>
<asp:Label ID="lblHomePhone" runat="server" Text='<%# Eval("HomePhone", "{0:(###) ###-####}") %>' ToolTip="Home" />
</ItemTemplate>
</asp:ListView>
This does render the phone number, but it is unformatted (8005551212 instead of (800) 555-1212).Why is the formatting not applied?
I have discovered something strange when using a ListView. I have a listview contained inside an uodate panel and everything works OK until I edit the editItemTemplate to use a LinkButton instead of a Button.When i use a LinkButton then the Page_Load event is fired.
View 3 RepliesI have to flip or rotate images in listview itemtemplateI will catch the image id by commandargument and get imageid, and rotate it and save it back in original placei tested roate image coding , it worked perfectly. but when i combine with listview and doesnt work.
View 4 RepliesI have this listview
<asp:ListView ID="ListView1"
runat="server"
onpagepropertieschanging="ListView1_PagePropertiesChanging"
onitemdatabound="ListView1_ItemDataBound">
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What I want is to be able to click on the button: btnAddCart and then in the code behind retrieve the value of product name (Eval("Prouct")) and price (%#Eval("Price","{0:#}")%) for that particular row/itemtemplate.
on my page, there are two listboxes,
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Based on the selection of SchoolID in listviewSchools, the ListviewStudents will be filled with the data.
SchoolIDLabel is in the ItemTemplate of the ListviewSchools. The following works for insertitemtemplate
Dim txtTitle As TextBox = CType(ListView1.InsertItem.FindControl("txtTitle"), TextBox), but i can not Access a control inside the ItemTemplate of a listview.
I have a dropdownlist embedded into an asp.net gridview. I have successfully populated the dropdown list in the footer but have not been able to populate the dropdownlist in the EditItemTemplate. Here is my code that works. I need to do the exact same thing for a dropdownlist embedded in the update functionality of the gridview.
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I have a listview showing the data, and that i will use to Show, Edit, Delete, and Insert data.
I added a ASP.NET Ajax HTML Editor to the EditItem Template.
I click on EDIT button and it turns into the EditItem Template, i modify the data and when i click UPDATE it does nothing.
Neither updating data or turning back to ItemTemplate.
Here is its code:
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And the Code behind:
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I am trying to enable server side code to check my session varible but my itemcommand is not being executed because my modalpopup is client click.Each template is loading the iframe which is horible performance killer. How do I get it to load the iframe on LinkButton click only once?
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I have a dropdownlist - ddlGroupName. Next to it, I have a Label - lblGroupName. The dropdownlist is bound to an SQL table, and displays the appropriate group depending on the primary key (contracters, suppliers, etc etc). When the page loads, I want the Label to display whatever is in the dropdownlist, then I can hide the dropdownlist and am just left with the label. I was using "lblGroupName.Text = ddlGroupName.SelectedItem.Text;", but intellisense doesn't seem to acknowledge the controls when they're in an ItemTemplate.
View 5 RepliesWhat I have is a GridView with a DropDownList in an ItemTemplate (not an EditItemTemplate). My datasource is not a control, rather in the code-behind.
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My main problem is that VS is not seeing that I have the dropdownlist, meaning I can not access any of the events in the code-behind. What I want to do is, when the value of the DropDownList is changed (SelectedIndexChanged), I want to grab the value of the RowIndex of the GridView.
I have two item template which consist two dropdownlist D1,D2...
here what im doing is d2 is binding based d1 selected value...
im using this code in D1_Selectedindexchanged
foreach (GridViewRow row in Gridview1.Rows)
I read your article on ASPSnippets and everything worked great. I am having one problem and this is preventing me from moving forward. When I select the edit for a row (I only have two columns), the drop down comes back blank (no records). I have looked at the code multiple times and can't see where I made a mistake. is it possible to control the width of the drop down list? I can't tell if the column automatically adjusts because I am not returning any records.
using System;
using System.Collections.Generic;
using System.Linq;
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Now I have a datalist
I have done the itemtemplate and edittemplate,when I click on the button in itemtemplate, the edittemplate will show.But that row in itemtemplate will disappear.How can I keep that row in itemtemplate and ecotent in edittemplate both appear?
