I have a ListView with a template, it puts a bunch of data in, like X Y Z.
I want to hide show some columns based on criteria, so I have ItemDataBound event, but I don't know how to get the actual listview row so I can do things to do it.
i am new in ListView Control. I have a List view to show shopping products. in each data Item i put a link-button for "Add to cart" button. in my scenario clicking on this button causes ShoppingCart.Instance.AddItem("Product GUID") to call. how can i perform that?
i set CommandName="Select" in Link Button and performed this:
[code]....
I have a ListView with many advanced controls and html tags. ListView is bound to collection of profiles when first profile in collection is current profile. current profile has few differences from other profiles ie. flash embed, js and some other stuff. I can access inside of my ListView Container.DataIndex property which gives me 0 as first item in index but i'm unable to use inline If statements like so
<% If Container.DataIndex = 0 Then %>
do stuff
<% EndIf %>
this is because i must place pound to access databound item but neither this
<%# If Container.DataIndex = 0 Then %>
do stuff
<% EndIf %>
How can i make inline If ?
I want to access the data that was databound to my list view when handling list view events such as:
protected void List_ItemDataBound(object sender, ListViewItemEventArgs e)
or
protected void List_ItemCommand(object sender, ListViewCommandEventArgs e)
Inside the events, I can not access the data via somthing like Eval("ID")
Currently we are using a very hacky solution:
string id = e.Item.FindControl("lblID").Text;
Where lblID is a hidden control that is populated with data in the aspx file using:
<asp:Label ID="lblID" runat="server" Text='<%# Eval("ID") %>' />
My eyes bleed when I look at this, Is there a better way?
have a listview with a list of comments. I would like to add the avatar of the person that posted the comment to each comment. To accomplish this I need to find the ListViewItem find the UserID get the avatar URL and add it to the ListView. I am sure I can do all of this in the ListView Databound event but how?
protected
void ListViewViewComments_DataBound(object sender,
EventArgs e)
{
try
[code]...
I know the question has already been posted here but we didn't get to an real solution.I have bound my ListView to an SqlDataSource and I want to write some text in a control present in the view created in the LayoutTemplate depending on some properties of the rows returned.Obviously, I'm using the ItemDataBound event to feed my items but this is not the point.
The spontaneous solution was to bind the ListView.DataBound event and access the raw datasource (a DataTable?) and do the required calculations.I inspected the Items property and, despite it was not empty, the related DataItem property was null.The only work-around I can come to is to execute the calculations in the ItemDataBound event and accumulate the result in some private fields. But it's really ugly to see and makes harder to get some of the required values.
Does anyone have an example for how to create a Dynamically Templated Listview with prefernces page to specify which columns & column order)? Also the listview would also have Edit, delete and insert options if possible. And uses the n-tier approach with Bus Layer and does NOT use LINQ.
View 1 Replieshave an annoying problem. i'm trying to update single items in a databound listview. but when i click the update button it gives me the cannot insert NULL value. it doesnt seem to read anything from the textboxes which i have databound from the database. even though text is clearly shown...
i have setup my update statement and parameters, it uses the Update command name and ItemUpdating event. i catch the data from the textboxes by using e.ItemIndex and use the text assigned to the parameters in a SqlCommand.
The thing i'm aiming for too is that when an item is updated it stays on the page where the item was updated, (i was using response.redirect before but it went against my aim since the whole page reloaded)
my folowwing code is generating error - selectedItem does not of string type. Basically i am unable to insert values through dropdownlist genrated dynamically.
Imports System.Data.SqlClient
Imports System.Configuration
Imports System.Data
Partial Class open_temp2
Inherits System.Web.UI.Page
Dim conn As New SqlConnection(ConfigurationManager.ConnectionStrings("ABC").ConnectionString)
Protected Sub Button1_Click(ByVal sender As Object, ByVal e As System.EventArgs) Handles Button1.Click
Dim da As New SqlDataAdapter("select partyNameID, partyName from tblParty", conn)
Dim ds As New DataSet
da.Fill(ds, "ds_tblParty")
da.SelectCommand = New SqlCommand("select quotedPositionID, quotedPosition from tblQuotedPosition", conn)
da.Fill(ds, "ds_tblQuotedPosition")
Dim I As Integer
Dim J As Integer = 1
For I = 1 To ddlNo.SelectedItem.Value
Dim MyDDL = New DropDownList
Dim MyDDL1 = New DropDownList
MyDDL.ID = "ddlParNam" & I
Session("a" & I) = MyDDL.ID
MyDDL1.ID = "ddlQuoPos" & I
Session("b" & J) = MyDDL1.ID
MyDDL.DataSource = ds.Tables("ds_tblParty").DefaultView
MyDDL.datatextfield = "partyName"
MyDDL.datavaluefield = "partyNameID"
MyDDL.DataBind()
MyDDL1.DataSource = ds.Tables("ds_tblQuotedPosition").DefaultView
MyDDL1.datatextfield = "quotedPosition"
MyDDL1.datavaluefield = "quotedPositionID"
MyDDL1.DataBind()
Panel1.Controls.Add(MyDDL)
Panel1.Controls.Add(MyDDL1)
Dim MyLiteral = New LiteralControl
MyLiteral.Text = "<BR>"
Panel1.Controls.Add(MyLiteral)
J += 1
Next
End Sub
Protected Sub btnCancel_Click(ByVal sender As Object, ByVal e As System.EventArgs) Handles btnCancel.Click
Response.Redirect("Default.aspx")
End Sub
Protected Sub btnSave_Click(ByVal sender As Object, ByVal e As System.EventArgs) Handles btnSave.Click
Dim comm As New SqlCommand("insert into tblOBDDetails(specNoID, partyNameID, quotedPositionID) values (@specNoID, @partyNameID, @quotedPositionID)", conn)
comm.Parameters.Add("@specNoID", Data.SqlDbType.Int)
comm.Parameters("@specNoID").Value = ddlSpecNo.SelectedItem.Value
conn.Open()
Dim I As Integer
Dim J As Integer = 1
For I = 1 To ddlNo.SelectedItem.Value
comm.Parameters.Add("@partyNameID", SqlDbType.SmallInt)
comm.Parameters("@partyNameID").Value = Session("b" & I).selectedItem.value
comm.Parameters.Add("@quotedPositionID", SqlDbType.TinyInt)
comm.Parameters("@quotedPositionID").Value = Session("b" & J).selectedItem.value
comm.ExecuteNonQuery()
J += 1
Next
conn.Close()
End Sub
End Class
I have a drop down list that is populated in the page load event from a database table. The drop down has a DataTextField set to a project name and the DataValueField set to the project id (interger). Later I change the dropdowlist selected item with this code in the selectedindexchanged event of a gridview
GridViewRow row = GridView1.SelectedRow;
ddlProjectList.SelectedItem.Text = row.Cells[2].Text;
Does Changing the drop down list with this code cause the DataValueField property to change to the correct Project ID number also? If not is there a better way to do this? actually this code seems to be adding an additional item to the list so that the project i set with this code is listed twice so I don't think my code is correct
I have a gridview I bound a DataTable with that Gridview Its dynamic so no hardcode Text in desin.
I tried to change it after Databound and in PreRender of gridview but no Success.
Actually there are Underscores('_') in text and I want to Replace it with space.
Below is code
<asp:GridView ID="grdSearchResult" runat="server" AutoGenerateColumns="True" Width="99%" OnPreRender="grdSearchResult_PreRender"
OnRowCreated="grdSearchResult_OnRowCreated" OnPageIndexChanging="grdSearchResult_PageIndexChanging">
<HeaderStyle ForeColor="White" BackColor="#215B8D" />
<AlternatingRowStyle BackColor="#F7F7F7" />
<RowStyle CssClass="gridtext" HorizontalAlign="Center" />
</asp:GridView>
protected void grdSearchResult_PreRender(object sender, EventArgs e)
{
for (int i = 0; i < grdSearchResult.Columns.Count; i++)
{
grdSearchResult.Columns[i].HeaderText = grdSearchResult.Columns[i].HeaderText.Replace("_", "");
}
}
I have to modify a page so that depending on who views the page i will show client or client Type, its easy enough to change the text but I cant see how to change the datafield
View 1 RepliesI have 2 pages (let's say one is a.aspx and the other one is b.aspx). In the b.aspx, there is a nested listview control (let's say outer listview and inner listview).Therefore, there is an event on databound for the outer listview. so basically, the event will programmatically bind the datasource for the inner listview.
Now, in a.aspx there is a button to open a new window (with unique window name) b.aspx. The very first time click on the button, a.aspx opens a new window for b.aspx without triggering the databound event. However, the second click and so on will trigger the databound event which is causing an error because there is no data yet in the outer listview.My question is, what could have possibly triggered the databound event while there is no data in the listview?
I am simply trying to change the listView template based on a value in the listview data. I do have this displaying the information correctly. Except when I try to change the item template based on a value in the listview. My code is below ....
View 6 Repliesi have a FormView, and i already have a Label control that gets the value of theselected propery inside the FormView, so each time the FormView displays data, i have a Label control that displays individual values, according to the value of the FormView, here is the code:
[code]....
What i would like to do is to know how i could add a DataList instead of a Label, and then each time the FormView databinds an item, to show the value of the DataList How would i go about doing that?
I want to render something like this (with ASP.Net Controls in the codebehind):
<ul>
<li class="first"><h1>This is a caption</h1></li>
<li><a href="#" title="" target="_self">Foo</a></li>
<li><a href="#" title="" target="_self">Foo1</a></li>
<li><a href="#" title="" target="_self">Foo2</a></li>
<li><a href="#" title="" target="_self">Foo3</a></li>
<li><a href="#" title="" target="_self">Foo4</a></li>
</ul>
<ul>
<li class="first"><h1>This is a another caption</h1></li>
<li><a href="#" title="" target="_self">Foo5</a></li>
<li><a href="#" title="" target="_self">Foo6</a></li>
<li><a href="#" title="" target="_self">Foo7</a></li>
<li><a href="#" title="" target="_self">Foo8</a></li>
<li><a href="#" title="" target="_self">Foo9</a></li>
<li><a href="#" title="" target="_self">Foo10</a></li>
<li><a href="#" title="" target="_self">Foo11</a></li>
</ul>
The amount of li elements that will be rendered into each ul is determined at runtime. Each link in a li belongs to into a specific ul (the one containing a specific caption. Imagine this as a kind of a treeview with nodes and subnodes) During the bind Event I need access to an ASP:HyperLink that will be rendered into the a-element. Which databound ASP.Net control should I pick for this? Looks like a repeater in a repeater, which should make the databinding process ugly. I'm thinking about creating this HTML-Output with StringWriters myself.
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 have an asp.net listview. The data that populates it is sorted into groups, and i'm using some code in the listview item template, that essentially checks if the grouping field has changed in the data, and if so it prints a new row, with the heading, so it looks a bit like this:
<ItemTemplate>
<%# AddGroupingRowIfWPHasChanged() %>
<tr id="row" class="GridViewRow" runat="server" >
<td valign="top" align="left" ><%# Eval("item1") %></td>
</itemTemplate>
This works great. However now I need to add a button the the group heading field, and I can't seem to get this to work. Obvioulsy this button only needs adding if the heading has changed, but the AddGroupingRowIfWPHasChanged() method does not seem to have access to the current ListviewItem, so I can't add a control.
how I can add a control to a list view dynamically, depandant on whether its a group heading or not?
A have a ListView that is rendered with multiple items. Now I want to toggle some HTML attributes with JQuery. Therefore it would be best to have access to these elements via an unique ID.
But trying to create a "dynamic" and therefore unique ID by
<tr runat="server" ID='<%# this.GetUniqueID() %>'>
</tr>
results in an error that tells me that the ID needs to be simple and cannot be set by a call to a method.
I know that I can dynamically create controls in the code-behind and set the ID there. But in this case, I'd rather like to let the content be rendered by the ListView itself.
That brings me to the conclusion that the idea of setting a dynically ID in the Template is totally wrong. How can I achieve the desired behaviour?
Edit: Ok I just found out, that I can set the ID with a BindingExpression, like
ID='<%# Eval("MyColumnWithUniqueID") %>'
Still, is there another, or even better solution to this?
I want to know how to apply css on any particular row of ListView. Is there any property of ListView?
View 1 RepliesI am having trouble getting the input values of dynamically created controls in a ListView.
Here is my ListView:
[code]....
The textbox is found, but there is no value. It's like I just wrote over the textboxes with new ones in the previous block. If I remove the previous block of code no textboxes are ever found.
I have a listview that displays a list of textboxes that get created on a button click. I would also like a label to be created next to each txtbox that would increment what is says from step x: to step x+1:
Do I need to create another listview control for this, or is there a much easier way (which I hope)?
Here is the current web code for my listview:
<tr align="center" valign="middle">
<td>
<asp:ListView ID="lvDynamicTextboxes" runat="server" ItemPlaceholderID="itemPlaceholder" onitemdatabound="lvDynamicTextboxes_ItemDataBound">[code]....
And here is the code-behind
protected void btnAddNewStep_Click( object sender, EventArgs e )
{
this.UpdateDataSource();
this.IncrementTextboxCount(); [code]....
EDIT::Since there seems to be a bit of confusion, I'll try to clarify:As of now, I have a textbox in a listview with a button underneath.
________
| txtbox |
|________|
_____
|_btn_|
When you click a button, it generates another text box, so clicking it twice results in this:
________
| txtbox |
|________|
________
| txtbox |
|________|
________
| txtbox |
|________|
_____
|_btn_|
These textboxes are to create steps in a process, so all I would like to do is add a generated label next to each generated textbox to say which step it is. So I want it to look like this:
________
["Step 1"] | txtbox |
|________|
________
["Step 2"] | txtbox |
|________|
________
["Step 3"] | txtbox |
|________|
_____
|_btn_|
And if they click the button again, then another label is generated with the text "Step 4"
I'm trying to create checkboxes inside Listview from code behind, but I'm having problem creating them.
What am I missing here?
Checkbox's ID comes from Datareader.
Here is my code.
If reader2.HasRows Then
While reader2.Read
Dim jobid As String = Convert.ToString(reader2("JobTicketID"))
Dim jobtitle As String = Convert.ToString(reader2("JobNickName"))
Dim item As ListViewDataItem
For Each item In ListView1.Items
Dim jobtd As HtmlTableCell = CType(item.FindControl("jobtd"), HtmlTableCell)
Dim jobtr As HtmlTableRow = CType(item.FindControl("jobtr"), HtmlTableRow)
Dim cb2 As CheckBox = New CheckBox
cb2.ID = jobid + "cb2"
cb2.Text = jobid + IIf(jobtitle <> "", " (" + jobtitle + ")", "")
jobtd.Controls.Add(cb2)
jobtr.Visible = True
Next
End While
End If
I'm trying to create a table with Listview and one of the fields I'm using is supposed to show a hyperlink to a more detailed view of the data shown, how I want to do that is by using FindControl on the ID of that item and then changing the value into a hyperlink of the detailed view page with a querystring attached, the problem is that I have no idea how to re-insert that data back into the listview field, which looks something like this:
<ItemTemplate>
<td>
<asp:Label ID="ViewLinkLabel" runat="server"
Text='[insert Link Here]' />
</td>
</ItemTemplate>
I'm still an amateur in ASP.net, and if any of this seems too convoluted when there's a much easier to do this that I don't know about.
I have a aspx where i have thumbails of pictures in listview, once i click on a picture, picture shows up as big next to list view. Now what i want to do is, have a red color border around the thumbail of picture which is show big at the center. check the Picture I just want to change the CSS class of the image selected in the listview. I get to know which image id is selected through query string PageNO or if <%#Eval("PageNo") %> is =2 then second image css class should be redBorder else imgBorder1 ASPX Page
[Code]....
Code Behind:
[Code]....