Is it possible to access a databound item via a codeblock?For example, I am attempting to add code within an itemTemplate while the current level is not equal to the previous level.
<itemTemplate>
<%
// Need to ensure Container exists in current context
[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.
I want a javascript on a databound row to act on another control in the same row - show/hide for example. The classic ASP approach was to number the controls (usually by rowIndex so that they're easier to reference. I am wondering is there a way to do this in ASP.Net without writing any item command code?
So for html to render as follows
<div onClick='actOnX0'> <span id=x0>i am x0</span></div>
<div onClick='actOnX1'> <span id=x1>i am x1</span></div>
<div onClick='actOnX2'> <span id=x1>i am x2</span></div>
Can I insert the numbers using a databound property that returns say the rowIndex / item index of the current row?
I have a label in a template control i want to make have the addition of two databinder items
something like:<%#DataBinder.Eval(Container.DataItem, "something1") + DataBinder.Eval(Container.DataItem, "something2") %>'
but the addition doesn't seem to work - is this possible with some other syntax?
i already have a DataList, and i get any information from the rows i need by adding code such as:
[code]....
Well what i am doing there is using the values from the items that the DataList has obtained from the rows, now, what i need to do is EXACTLY the same, but for the FormView, i realised that this code does not work for the FormView, but only DataList control.
give me the code for doing exactly as shown, but for the FormView control.
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 have a databound dropdown list (ASP.net). I want the page to load with a certain item as the selected item.
I am not adding a blank first row (thats not what i need)I find that I can get this to work with "AppendDataBoundItems" to true, but the side-effect is that I have all the items listed twice.
I've got a repeater bound to a datasource through the code behind. Everything is working fine so far except for this, I'm trying to concactenate a bound field as the id on a query string to an image handler:
<asp:Image ID="Image4" runat="server" BorderColor="#E5E5E5" BorderStyle="Solid" BorderWidth="1px"
Height="100px" Width="100px" ImageUrl="'~/ImageHandler4.ashx?Id=+'<%# Bind("ImageID")%>'"/>
What am I doing wrong?
I have a simple databound dropdownlist. On top, I have a default selection, '--Please Select--', followed by another default selection, '-- Other --'. Here's the script:
[Code]....
Now, my user wants the '--other--' selection to appear on the BOTTOM of the dropdown as opposed to right sfter '--Please select--'. How do I accomplish this?
i have a solution with a web application that i want to creat a new http module for and cant find a way in the VS2010 IDE to add a httpmodule.
im trying to right click and add new item but don't find httpmodule listed.
how do i check if a bit value is true or false and if false, then write another value.
Here is my code
<%# DataBinder.Eval(Container.DataItem, "gp_referral").Equals("False")?"":"xxx"%>
Am trying to check if gp_referral is false, and if so then write xxx, but in my code, whether true or false it evaluates to xxx
last year I inherited a webapplication that seems to refuse to run on a new hosting company's servers due to a "security violation"... Our old host was bought out and now sucks...So I uploaded the code to the new company - looking forward to some sleep and found that my life was about to get more complex.. I go the good old generic security error
System.Security.CodeAccessSecurityEngine.ThrowSecurityException(Assembly asm, PermissionSet granted, PermissionSet refused, RuntimeMethodHandle rmh, SecurityAction action, Object
The biggest issue was that it didn't say where the error was.. Digging deeper (taking the code appart one block a time) the error was being triggered by the followin itemdatabound event. My host says it is because they are running under medium trust, but I am not seeing why this block should cause issues. Any help very much appreciated.
Sub dlstAlsoDish_ItemDataBound(ByVal s
As
Object,
ByVal e
As DataListItemEventArgs)
Handles dlstAlsoDish.ItemDataBound
If e.Item.ItemType = ListItemType.Item
Or e.Item.ItemType = ListItemType.AlternatingItem
Then
Dim lngDateType
As
Long = e.Item.DataItem("dateType")Dim
strEvent As
String =
"> " & e.Item.DataItem("restName") &
" :: " & e.Item.DataItem("eventName") &
" : "
Dim lnkAlsoEvent
As HyperLink = e.Item.FindControl("lnkAlsoEvent")Dim dtmStart
As DateTime = e.Item.DataItem("eventSrt")Dim dtmEnd
As DateTime = e.Item.DataItem("eventEnd")If lngDateType = 1
Then
strEvent = strEvent & Format(dtmStart, "MMM")ElseIf lngDateType = 2
Then
strEvent = strEvent & Format(dtmStart, "dd MMM") &
" TO " & Format(DateAdd(DateInterval.Day, -1, dtmEnd),
"dd MMM")Else
strEvent = strEvent & Format(dtmStart,"dd MMM")End
If
lnkAlsoEvent.Text = strEvent
lnkAlsoEvent.NavigateUrl = e.Item.DataItem("restURL") &
"/events.aspx#e" & e.Item.DataItem("eventID")ElseIf e.Item.ItemType = ListItemType.Header
Then
imgBorder.ImageUrl = strImageURLDim imgBorder
As Image = e.Item.FindControl("imgBorder")End
If
End
Sub
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?
[I'm working in Microsoft Visual Studio 2005 with C# Language]There is a series of forms that I'm prepopulating with data from a SQL database. Every page that I've created in this way I've coded the needed information required into the method:protected void Page_Load(object sender, EventArgs e)and doesn't fire if it's a postback event.This latest form has a CheckBoxGroup that is databound and populates based on a table in the database. However, the form only prepopulates after a postback. Prior, the Item.Count says 1 when I know that there are 14 items. Again, it reads fine after the postback. I assume that this is because the CheckBoxGroup populates after the Page_Load function.Is there a way that I can make something like this fire during the Page_Load and not during the postback?
View 2 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.
How can I access RowDataBound(...) event of child grid. I want to change the background color of the cell in the child grid based on the value.
I have Master/Slave GrisViews (or you can say Parent/Child GridViews). I am populating Child GidView in Parent's RowDataBound (..) event, as follows
[Code]....
In child grid, I have to calculate some values to dislay in the footer row of the child grid.
The following DataBound event focan I accessr te child grid is throwing an error "The name 'ChildGrid' does not exist in the current context"
[Code]....
Here is the ParentGrid with ChildGrid
[Code]....
I've got an ArrayList bound to a repeater control. In an associated, but separate, area of the page, I'd like to get the first and last item out of the bound control. It's actually a paging element to a table.
Here is the code for the Repeater:
this.Repeater1.DataSource = pagingArray;<br>
this.Repeater1.DataBind();<br>
<asp:Repeater id="Repeater1" runat="server"><br>
<ItemTemplate><br>
<a href="/?page=<%# Container.DataItem %>"><%# Container.DataItem %?</a><br>
</ItemTemplate><br>
</asp:Repeater><br>
I'd like to get the first element from this repeater and display it. The code that I have right now (that doesn't work) is:
<% Response.Write(Repeater1.Items[0].ToString()); %>
Here's my .aspx code.
[code]....
"Databinding methods such as Eval(), XPath(), and Bind() can only be used in the context of a databound control."
I'm more of a php guy, so this is a little over my head..
Right now I'm using the following code in my markup:
<asp:HiddenField ID="TheName" runat="server" Value=<%#Eval("SpeakerName")%> />
I would like to use:
<asp:HiddenField ID="TheName" runat="server" Value=<%#Eval(0)%> />
I would like to be able to call it by index instead of explicitly by "SpeakerName". Is there a way to do this in ASP.NET 4.0?
I am trying to use this solution to access items inside a telerik menu item:
ascx code:
<asp:Label ID="DivLeave" runat="server"></asp:Label>
In the ascx.cs file I run this code to disable the asp label
RadMenuItem expenses = RadMenu1.FindItemByText("Expenses");
Label DivLeave = (Label)expenses.FindControl("DivLeave");
DivLeave.Visible = false;
but I get this error when I try to run the code:
{"Object reference not set to an instance of an object."}
I really need to run this server side as code surrounding the above code does some work server side and it will all fit in neatly...
I have a MVC dropdown list (Html.DropDownList) with list of Movies populated. I want to retrieve both Title(value field), Description(Text field) when I perform the form Submit. I can access the Title(value field), but I can't access the description. My code sample is below.
[Code]....
public string CinemaName { get; set; }
The Detailsview has a template containing a textbox for one of it's fields.When an item is selected in the Gridview, I want to set a property of the textbox. How do I do that? I've tried Findcontrol for the item during Prerender of the detailsview. I've also tried many other things. Below is a portion of my aspx code followed by my VB code.
<asp:GridView ID="GridView1" runat="server" AutoGenerateColumns="False"
DataKeyNames="LU_DutyStations_ID" DataSourceID="SqlDataSource1">
<Columns>
asp:CommandField ShowSelectButton="True" />
<asp:BoundField DataField="Duty Station Code" HeaderText="Duty Station Code"
[code]...
I want to access a dropdown control value of each list item as soon as it is created. I tried with ItemCreated and ItemDataBound events but I am getting null contro when I try to access control as shown below:
ListViewDataItem item = (ListViewDataItem)e.Item;
int LstIndex = item.DataItemIndex;
RadComboBox ddlCategory = (RadComboBox)(listView1.Items[LstIndex].FindControl("rdComboCategory"));
Also, I get listview.item.count zero. IS there any event where I will get listitem count and list items?
I'm trying to figure out how to access controls that are added to a panel in a code behind file.For example, when I click a button, I add a radio button list to the panel.How do I access the selected item from that radio button list? I get an error saying it is not defined, even though list gets generated..
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