i would like to do a "weird" thing with the asp.net listview control.
I would like to insert advertising each 8-10 item of the listview (databounded with a database table) : for example each 8-10 item insert the google adwords jscript code.I've googoled but i haven't found anything. "tell the listview: each 8 items, show this item (google jscript code).
I have a listview set up in "flow" mode where the existing records are all on an extended page so you can scroll down to any record.
The InsertItem Template is in the first position, making it easy to insert a new record.
And one can scroll down the page to any record, click the edit button and update that record -- nice having everything on one scrollable page.
I am running into a problem with validations. I have validation controls restricting inputs for all the textboxes on the Insert Item template. They work fine. And on Item Inserted I am running a page validation:
Page.Validate()
If Not Page.IsValid Then
e.Cancel = True
End If
which works fine also.
The problem occurs when I scroll down to an existing record, and go to edit it. I have all the same validation constraints on the textboxes for the EditItemTemplate as I have on the InsertItemTemplate. But I cannot successfully do a page validation on updating the record. The code I am using on update is:
Protected Sub LVRentals_ItemUpdating(ByVal sender As Object, ByVal e As System.Web.UI.WebControls.ListViewUpdateEventArgs) Handles LVRentals.ItemUpdating
Page.Validate()
If Not Page.IsValid Then
e.Cancel = True
End If
End Sub
This results in a Cancel even if there are no validation errors on the InsertItemTemplate because the Page.Validate() seems to be causing the InsertItemTemplate to think its fields should be filled out also.
Here is the code for a typical entry of the InsertItem Template:
[code]....
All the controls in the Edit Item template are part of ValidationGroup "edit1" and those of the InsertItem Template are part of ValidationGroup "edit2"
How can I get around receiving validation errors on the InsertItem Template when I am trying to validate just the EditItemTemplate when both are present on the page?
What I'm trying to do is: I have a listview control on my page and in my code behind, I created an SQLDataSource object which I defined its Select, Delete, Update and Insert Command strings. I then binded that datasource to my listview. When I load the page, it's obvious the select command works. however, when I perform the insert, the ItemInserted event triggers, but the itemInserted doesn't trigger and there is nothing inserted in my database.I'm not sure what to do here. I also hard coded the insert values in my insert command. So it's not depending on the form values.
View 3 RepliesHow can I use required field validators in the insert item template in a listview control? The empty fields in the insert item template are preventing the user from deleting or updating ay other row.
View 6 Replies[Code]......
It always displays ONLY 10 items although there are 30 items in the datatable. If i use GridView ALL the 30 items are displayed just fine.
So I have a ListView (assignmentsListView) in an UpdatePanel, being filtered by a DropDownList in the same UpdatePanel. The DropDownList has a list of persons in it and uses autopostback, and the ListView shows the tasks those persons are assigned to.
I am trying to use code similar to this:
[code]....
When I first load the page, the DropDownList shows the first person in the list, and the ListView correctly shows that persons tasks.
If I then select a person who I know has zero tasks, I get an error at the RegisterPostBackControl() method, saying the passed-in control cannot be null.
When debugging, at the RegisterPostBackControl method, it shows that the ListView Items collection has >0 elements in it (the number of elements matches the person selected before the current person).
I am using list view to display the the data but i am getting an error like An item placeholder must be specified on ListView 'ListView1'. Specify an item placeholder by setting a control's ID property to "itemPlaceholder". The item placeholder control must also specify runat="server.Even i have specified the itemplaceholder id but no use still same error.
[Code]....
I have a listbox which populated from using a datatable. I have a Add button in my page. On clicking the add button I want to insert a blank row in the listbox. This can be done easily by
ListBox_Admin.Items.Add("");
after this is done I want to select this item as in setfocus on this item.How do I do this.
I have a ListView control in Asp.Net WebForms which display a set of elements, I have at the end a "More" button like Facebook for example. During the postback I want to get from database another 10 elements (I have already displayed 10 and I don't want to retrieve them again)
Something like this.
foreach (var item in New10Items)
ListView.Items.Add(index,DataItem)
the problem is with DataItem, how to Bind it before add it? what is the best way of solving this?
I have a listview showing images like ImageViewer and I want to implement Drag-Drop behavior within ListView. how can i achieve the Srag-Drop inside the below kind of customized ListView.
<asp:ListView ID="lvPhotoViewer" runat="server" GroupItemCount="3" InsertItemPosition="LastItem">
<LayoutTemplate>
<table id="groupPlaceholderContainer" runat="server" border="1">
<tr id="groupPlaceholder" runat="server">
</tr>
</table>
</LayoutTemplate>
<ItemTemplate>
<td id="Td4" align="center" style="background-color: #eeeeee;">
<asp:Image runat="server" ID="imPhoto" Height="100px" Width="100px" ImageUrl='<%# "~"+Eval("PhotoUrl") %>' />
<br />
<asp:Label ID="DefaultPhotIDLabel" runat="server" Text='<%# Eval("PhotoName") %>' />
</td>
</ItemTemplate>
<GroupTemplate>
<tr id="itemPlaceholderContainer" runat="server">
<td id="itemPlaceholder" runat="server">
</td>
</tr>
</GroupTemplate>
<InsertItemTemplate>
<td id="Td3" width="150px" height="150px" runat="server" align="center" style="background-color: #e8e8e8;
color: #333333;">
<asp:FileUpload ID="fileUpload" runat="server" />
</td>
</InsertItemTemplate>
</asp:ListView>
Code Behind:
public class ImageEntity
{
public string PhotoName { get; set; }
public int PhotoIndex { get; set; }
public string PhotoURL { get; set; }
}
public partial class _Default : System.Web.UI.Page
{
protected void Page_Load(object sender, EventArgs e)
{
IList<ImageEntity> imagesList = new List<ImageEntity>()
{
new ImageEntity(){ PhotoName="House1", PhotoIndex=1, PhotoURL= @"ImagesHouse-01.JPG" },
new ImageEntity(){ PhotoName="House2", PhotoIndex=2, PhotoURL= @"ImagesHouse-05.JPG" },
new ImageEntity(){ PhotoName="House3", PhotoIndex=3, PhotoURL= @"Imageshouse.jpg" },
new ImageEntity(){ PhotoName="House4", PhotoIndex=4, PhotoURL= @"Imageshouse2.jpg" }
};
lvPhotoViewer.DataSource = imagesList;
lvPhotoViewer.DataBind();
}
}
I am trying to use checkboxes to select the items in a Listview. I have added a checkbox control in the , and they are displayed properly.
The problem is that Checked property never changes when I click on them. Why does this happen?
Here is the code:
<asp:ListView ID="ListView1" runat="server"
onitemcommand="ListView1_ItemCommand"
onitemdatabound="ListView1_ItemDataBound">
<LayoutTemplate>
<asp:PlaceHolder ID="itemPlaceholder" runat="server" />.......
I'm currently using a ListView in my webformsapplication. This ListView generates a table with (currently) three columns. "Username", "Organization" and "Locked". These are represented with string, string and checkbox respectively. The checkbox should postback on change...
Should I use <%# Eval("Username") %> or <asp:Literal blablah> to inject the data? This is more relevant for the checkbox... It seems very "dirty" to write <input type="checkbox" id="something" <%# if ((bool)Eval("Locked") == true) /* some unknown code for outputting "checked" */ ;%> />
Or should I use another container alltogether?
I am using a listview to display some items.But sometimes based on condition I have to hide few items from the list.So how can I do this?I am using ASP.Net with c#.
View 3 RepliesI'm having a hard time coming up with a good way to number the items in my paginated ListView. The solution I was using prior to adding pagination worked fine, but now the numbering doesn't persist between pages. If the first page is 1-10, the next page will also be 1-10 and so on. Obviously, it should be 1-10, 11-21, etc.
Is there an easier way to add numbering to ListView items that I'm missing? What's the best way to do this?
I have suppliers table with id int value for each supplier. I'm trying to edit columns of this table inside of ListView.
i'm trying to access e arg but it doesn't have any data on id of the row i'm trying to update?
I have a listview that is bound to a datatable on the runtime. The listview has a <ItemTemplate> format which includes a lot of controls. On the page Load I do bind the listview to a datatable. Now, I want to add more ListView Items without databinding the whole listview and maintain the same ItemTamplate.
View 14 RepliesI have a listview with some data bound to it.
In this data are column for an address.
How would I go about accessing these data items in code behind so I can concatenate them into one easy variable and miss out columns that have no data in, i have fields:
address
address1
town
county
postcode
I don't have a problem with the concatenation just accessing the data items.
I am getting data out via a dataset and binding it to a listview.
Is it possible to access data items in the code behind to format or do whatever i want with them then showing it in the list view such as, concatenating the address fields into one variable?
so instead of writing:
DataBinder.Eval(Container.DataItem, "address") & ", " & DataBinder.Eval(Container.DataItem, "address1") & ", " & DataBinder.Eval(Container.DataItem, "town") etc...
in the actual list view i could do this in the code behind in a string variable then show the variable in the list view?
'select command
Dim cmdSchedule As SqlCommand = New SqlCommand()
cmdSchedule.Connection = keypadSQL
cmdSchedule.CommandText = "spSchedule".....
Run mode as follows
In Listbox as follows
Candidatename
AshiwnBaskarChandruDasGopal
Listview (control)
I want to display the above Listbox items into Listview. for that how can i do in asp.net using c#.
What is the best way to create a hyperlink to a ListView's items? I'm trying to enable users to simply click on any of the ListView's items, which in turn has to effect that a detailed page for the specific item is opened in a new tab. Right, I got it working by using a Hyperlink component, which is a step closer to my goal.How to make the entire ListViewItem clickable.
View 3 RepliesI'm writing an ASP.NET app. I need to include a page where the user can add an item which has several sets of subitems, each of which sets is unlimited in number. The subitems themselves contain between 10 and 15 fields, so need a fair bit of UI space.
As an example of what I mean, the user needs to be able to add a Business record to the system, including any number of Employee records and any number of Asset records.
The way I normally do this is by using a MultiView control with a set of tabs at the top. The tabs switch between the Views of the MultiView. The first tab will be for the Business record, the second will be for Employee records, and the third for Asset records. The Views for Employees and Assets are initially empty bar a button to add a new Employee (or Asset). When this button is clicked, the page is posted back and a user control is added dynamically to capture the details of the Employee (or Asset).
There is one save button that saves the whole object graph to the database.
This is quite complicated to program and maintain and I usually encounter headaches to do with managing ViewState for the dynamic user controls. Obviously, the ViewState on the page can also become quite large, making the page quite slow.
The advantage is that it is quite an intuitive UI for the user to understand, and the user can add everything and check it all before saving anything to the database.
On a button click, I want to select all items in a listbox, the items will look like this for example: '14/5', then I want to extract the digits on each side of the slash for each item. The digits will be different every time and can consist of any number of digits. Do I need a loop to be sure to get all items?
[Code]....
I want to reach checked rows item in ASP.Net Listview control.
For example:
if 3 Lines of Listview checked, I want to reach checked items value in listview.
How can i get the number of a listview records (or the index of the last record) from within the ItemDataBound event ? I would like to hide one of the controls in the last record, how can i know if the item is the last one ?
View 2 RepliesI am looking for a way to set a listviewitem backcolor programaticaly based on a value of a datafield.
View 4 RepliesI'm trying to update items in my SQL database from a ListView. It works, but all entries in the database update. Not just the one I'm working on. I backed up the database prior to testing, so there's not any issues there.This is how my SqlDataSource UPDATE command is setup:
SQL Code:
UPDATE entries SET duration = @duration, checkinDate = @checkinDate, receivedBy = @receivedBy, cosmeticDmgIn = @cosmeticDmgIn, STATUS = N'closed'
I don't have any code setup to update the database, which is probably the issue.When I load the ListView, select edit, type in my edits, and click "Update", all the rows in my database, for that column, are updated with that data.I tried inserting the parameters manually, within the ItemUpdating event, but it never works.