Forms Data Controls :: Repeater ItemTemplate - If Eval(field)=0 Then HTML Else HTML
Feb 20, 2010
The following seems reasonable, but it returns an error:
<asp:Repeater ID="RepeaterF" runat="server" DataSourceID="DSF" >
<ItemTemplate>
<%
If Eval("Item_Batch") = 0 Then
%><tr><td></td><td colspan="2"></td><td></td></tr><%
Else %>........
Error: "Databinding methods such as Eval(), XPath(), and Bind() can only be used in the context of a databound control."
I am finding it difficult to accept that the whole Repeater approach has any benefits over just creating a loop in code, iterating through a recordset, and building a html table into a variable, then dumping it to the page. This repeater is spawning pages of code and objects, and surely this is all using up server resources.
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Similar Messages:
Nov 13, 2010
I am new to Repeater and DataBinding
In PageLoad, I have
var photos = from p in MyDataContext.Photos
select new {
p,
Url = p.GetImageUrl()
};
repeater1.DataSource = photos;
repeater1.DataBind();
In the Repeater control, I have
<ItemTemplate>
<% Photo p = (Photo) Eval("p"); %> <!-- Apparently I can't do this -->
...
<asp:TextBox runat="server" ID="txtTime" Text='<%= p.Time == null ? "" : ((DateTime)p.Time).ToString("dd/MM/yyyy HH:mm:ss") %>' />
...
</ItemTemplate>
But that is wrong.
What I need is to get the Photo object in ItemTemplate so I can do things with it (eg. to display the time as in the second line in ItemTemplate above). Is it even possible to do this in a Repeater?
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Mar 17, 2010
I add a table or div inside to datalist itemtemplateı want to change dynamicly table or div id's value from codebehind databound event. ex : I want to add itemindex value to table or div id which is inside itemtemplate
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Dec 21, 2010
I have a GridView with an TemplateField:
<asp:GridView runat="server" ID="gvReport" ondatabinding="gvReport_DataBinding">
<Columns>
<asp:TemplateField >
<ItemTemplate>
<asp:Label runat="server" Text='<%#Eval("answers") %>' /> out of <asp:Label runat="server" Text='<%#Eval("questions") %>' />
</ItemTemplate>
</asp:TemplateField >
</Columns>
</asp:GridView>
What I'd like to do on gvReport_DataBinding is change the field the Evals point to, so I end up with something like:
<asp:Label runat="server" Text='<%#Eval("answers_foo") %>' /> out of <asp:Label runat="server" Text='<%#Eval("questions_foo") %>' />
I have gotten this far:
TemplateField tf = ((TemplateField)gvReport.Columns[0]);
But I'm not sure what I should be doing with tf. tf.SomeProperty.Replace("answers", "answers_foo")?
Or am I barking up the wrong airplane on this one?
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Feb 18, 2011
Repeater data rendering problem
im using Visual Web Developer Express2005 and language: VB
Example Image of my forum thread that im working:
i encircled in color red the part where i assign the 'content' as you can see above.here EXAMPLE of code in my repeater that populate a <td>(inserting data FROM my database) from my TableField('content')
[Code]....
the part that i encircled in the image above was the data on my tableField named--> 'content'.
The idea was to show not the whole content but to show Only some part of it. example is to show only the 1st 300chars or 100 words.
i tried this code which shows the fist 1-100 chars. [Code]....
Problem is the data i stored in the TableField('content') has other html tagsExample my Tablefield('content') has the following data.
<p class="MsoNormal" style="margin: 0in 0in 0pt"><span style="mso-ansi-language: EN-CA"><span style="font-size: x-small">All hands worked in the preparation..............
When i use the code .tostring.tosubstring(1, 100) it shows: <p class="MsoNormal" style="margin: 0in 0in 0pt"><span style="mso-ansi-language: EN-CA"><span style="font-size: x-small">All hands worked in the preparation..................
instead of starting at: All hands worked in the preparation.......Is there a way that i could extract first the html tags then use the
.string.tosubstring(1, 100) to make it work.I use the code below temporarily to generate the 'content' as showed in the image above. i limit the height of the lable to 100px which does the trick. but i know its not a good method thats why im trying to look for other methods.
<asp:Label runat="server" Height="100PX" Width="615px"><%#DataBinder.Eval(Container.DataItem, "Content")%></asp:Label>
------------------------------------------------------------------------
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Jan 10, 2011
i'm attempting to set regular html checkbox's checked value based on if a master asp checkbox is checked or unchecked. The normal html checkbox is located in an asp repeater control that is populated in the page load event.
MAIN .ASPX PAGE
<asp:CheckBox ID="ChkMaster" runat="server" OnCheckedChanged="ChkMaster_CheckedChanged" AutoPostBack="true" />
[code]...
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Oct 15, 2010
I'm used to Dreamweaver where this is possible. I find it hard to believe that I would need to use a 1 column gridView control.
Is there a way to drag one field from the db Explorer window onto my page and NOT get a grid view?
Or alternatively, I used to be able to put something like this in ASP classic (years ago!) <%= Eval("User") %>
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Mar 27, 2010
I have the code below that works fine, but I need to have more than one field using the same command.
[Code]....
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Jun 22, 2010
I have tried many different combinations to try to get this to work, but I cannot. In the ItemTemplate of a Repeater control, I have a <form> tag. For this third party button to work, each button needs to be surrounded by <form></form> tags. I cannot get the first iteration of the repeater to display the tag, but 2, 3 and beyond, it will. It doesn't make sense to me. Because of this, IE is displaying the page in a funky way.
To see the generated code on the page, http://AdvancedSurveillancePro.com/services.aspx
Here is my repeater code:
[Code]....
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Sep 27, 2013
i need to display whole table including headers with repeater ,,
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Feb 22, 2011
I have the following problem and I hope some of you could help me because I'm sick and tired of trying to get this fixed.
I have an asp:repeater which has the following <ItemTemplate>
[Code]....
[Code]....
[Code]....
[Code]....
[Code]....
but it really looks like this.
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Apr 16, 2010
In my application I have successfully pulled some rows from a database into a DataSet and then used an ASP.NET Repeater Control to create a div container for each row with each field contained within a span element as follows:
<asp:Repeater
id="repeater"
runat="server">
<ItemTemplate>
<div
id="ticketContainer">
<a
href="#"><img
src="~/Images/treeview_expand.png"
alt=""
runat="server"
/></a>
<span><%#DataBinder.Eval(Container.DataItem,
"USERNAME")%></span>
<span><%#DataBinder.Eval(Container.DataItem,
"COMPUTERNAME")%></span>
<span><%#DataBinder.Eval(Container.DataItem,
"CATEGORY")%></span>
<span><%#DataBinder.Eval(Container.DataItem,
"DATE")%></span>
<span><%#DataBinder.Eval(Container.DataItem,
"TIME")%></span>
<span><%#DataBinder.Eval(Container.DataItem,
"STATUS")%></span>
<p><%#DataBinder.Eval(Container.DataItem,
"DESCRIPTION")%></p>
</div>
</ItemTemplate>
</asp:Repeater>
My problem is that I want the .png graphic link to have a onclick event so that a new div is dynamically inserted under the div to show data from a seperate database table. However since its all declared within the ItemTemplate then targeting the correct div using the JS DOM would be difficult/impossible as the id for each of the divs will be the same.
If this is going to be infeasible then what is the possibility of having data brought in from multiple tables would I have to manipulate the DataSet to include the extra columns as I think Repeater Controls can only have a single DataSet (corret me if i'm wrong).
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Feb 7, 2010
I have the following code in an aspx form for an asp:Repeater
<ItemTemplate>
<tr class='<%#Container.ItemIndex % 2 == 0 ? "normalRow" : "alternateRow" %>' >
<tr>
<td>
<asp:LinkButton ID="LinkButton1" runat="server">blabla
<%#DataBinder.Eval(Container.DataItem, "ListName")%>
</asp:LinkButton>
</td>
</tr>
</ItemTemplate>
Which produces a syntax error (and a sqiggle blue underline) on
<%#Databinder.Eval(Container.DataItem, "ListName")%>
the build tells me I have an invalid character in the position before the opening <%
above
This only happens after I add the conditional class for the <tr> tag
"<tr class='<%#Container.ItemIndex..."
before I add the above line (to replace the <AlternatingItemTemplate>) everythings ok.
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Nov 2, 2010
I have a Repeater displaying some data that doesn't do what I'd like to see. If a certain condition is met (ex: parent.NumOfChildren > 0) I would like a hyperlink shown. Here is what I have so far:
<asp:Repeater ID="parents" runat="server" >
<ItemTemplate>
<asp:HyperLink NavigateUrl='<%# "Children.aspx?parent=" + DataBinder.Eval(Container.DataItem,"Parent_ID")%>'
Text='View Children' runat="server" target="_self" ID="Hyperlink2" NAME="Hyperlink2"/> -
</ItemTemplate>
</asp:Repeater>
In this case, the "View Children" link shows up for every item in my Repeater, but I'd like it shown only if parent.GetNumOfChildren() > 0. Would it be correct to try setting the Visible="true/false" property of the HyperLink? Is that the norm for this sort of problem? Or, is there a way to wrap the entire <asp:Hyperlink> ... </asp:Hyperlink> tag in an if statement that has a reference to the object that is currently being interated in the Repeater? Ie:
if(CurrentDataItemInIteration.GetNumOfChildren() > 0)
{
<asp:Hyperlink> ..... </asp:Hyperlink>
}
To me, the Visible="true/false" solution seems cleaner, if possible.
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Dec 12, 2010
using a repeater to display multiple 'comments' related to a parent database entity (a 'task' in my case). When the user creates these comments they can optionally attach a file. Now, I'm working on the page that lists these comments and I'm not sure how to go about displaying the link to the attached file, if one is present. There may not be a file. The database record that contains the comment will also contain the url to the file if one was attached.
what are my options for this? I would like to just display a link to the file after the comment content, only if a file is available.
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Mar 27, 2010
I have a repeater bound to a datasource that servers as a list of birds. When the user clicks an item in the list the bird's image is displayed on the page. I want to change the background color of the item that is currently selected in the OnClick handler for the main item in my repeater's ItemTemplate.
I have changed the styling of controls prgrammatically before and it worked fine but in those cases i used the ID of the control to directly access it in my code behind file. But since this is some arbitrary item in a repeater I don't know it's ID at runtime, all I have is the sender object passed to the control's OnClick handler. So in my code behind file, I tried casting the sender object passed to the OnClick handler to the appropriate type and used Style.Add("background-color", highlitColor) but it failed to change anything.
I had a thought - maybe this sender object gets passed by value so all I did was change the Style of a COPY of the control item.
If this is indeed my problem, how do I start with a casted sender object in an event handler and get a reference to the actual control in order to change it's Style?
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Mar 3, 2010
[Code]....
Above is the field in the gridView. My question is very simplet that whatever the number of rows in a grid in one column, I just want to show the sum of the values of a column in the Footer Row.
I don't want to use javascript. I have tried following code but there is displaying "0" in the footer of the respect column instead of sum.
[Code]....
I need assistance in the code which I provided. I want something like this:
20+30+10 =60
but it is displaying like:
20+30+10=10
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Dec 22, 2010
I am using formview control to generate invoice. But instead of printing html view it is printing html code in PDF. I am doing like this:
[Code]....
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Oct 21, 2010
I need the yoy var %, bm % yoy bps, and opps generated to have a backcolor of gold. before it was a itemtemplate it was easy to change it in the codebehind but now that it is a itemtemplate it wont change anymore.
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Nov 15, 2010
I want to test the request.querystring value in itemtemplate.
I want it like
<ItemTemplate>
if(request.querystring["name"]=='abc')
Qty*Price;
else
Qty
</ItemTemplate>
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Mar 18, 2010
I have a GridView inside of an UpdatePanel and the buttons for edit and delete into a templatefield
For the delete button, I also have a modalPopup extender and a confirmButtonExtender, due to the problem of the pannels flashing momentarily (and that is very ugly) I have created a css class with display:none
for the delete button I have created a javascript function called changeVisibility(id) to change the visibility
Here ir some code:
[Code]....
The problem is that when I execute the page, imagebutton onclientclick appears like this:
onClick=""
why is asp.net not processing correctly that, and, if you know another way to hide the panels before they flash on startup,
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Aug 22, 2013
<asp:Label ID="lblsize" runat="server" Text='<%# Eval("size")%>' />
in the syntax above, what is '<%# Eval("size")%>' means?
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Jul 17, 2015
I have a repeater control that is getting exported to excel. Well excel will no longer show the data that was in the textboxes. I've read the article on exporting a gridview having the same problem and how you replace the texboxes with literal contrls. I was wondering if there is an article like it only for a repeater control.
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May 20, 2010
IF statement which I use to validate the value in EVAL("field").
Here is my code in .ASPX
[code]....
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Mar 10, 2013
[URL]
but i wanted know,how to update the country of any customer by just choosing it from the dropdownlist and updating it in the databse.
i wanted to add a common update below that updated the country of customers.
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