I need to insert a user control into a repeater
<asp:Repeater runat="server" ID="rptAdditionalPages">
<ItemTemplate>
<div id="<%# ((ftj.com.AdditionalPageForProductDetail)Container.DataItem).DivID %>" class="tab_content">
<h1><%# ((ftj.com.AdditionalPageForProductDetail)Container.DataItem).Title %></h1>
<%# ((ftj.com.AdditionalPageForProductDetail)Container.DataItem).Body %>
<uc:EnrollmentMethod ID="EnrollmentMethod2" runat="server" />
</div>
</ItemTemplate>
</asp:Repeater>
When the user control is inserted with this method the code behind cannot find EnrollmentMethod2. Is it possible to add user controls in repeaters?
You can't find it because it's nested in the repeater. You will need to dig into the repeater to find it.
foreach (RepeaterItem item in Repeater1.Items)
{
EnrollmentMethod control = (EnrollmentMethod )item.FindControl("EnrollmentMethod2");
}
Related
<%
foreach (training t in traininglist)
{
%>
<tr>
<td><%=t.TrainingId%></td>
<td><%=t.TrainingName%></td>
<td>
<asp:LinkButton runat="server" ID="EditBtn"
Text="Edit" OnCommand="editbtn_OnCommand"
CommandArgument='<%# t.TrainingId %>' CommandName="edit" />
</td>
</tr>
<% } %>
where,
training is the class and traininglist is List<training> defined in Page_Load() function in codebehind.
I am trying to call the
public void editbtn_OnCommand(object sender, CommandEventArgs e)
{
String myeid = e.CommandArgument.ToString();
....
}
Here, myeid is not getting value but always shows <%# t.TrainingId %>
i have already tried all other options like <%: t.TrainingId %> or <%=t.TrainingId %>
The output of Tag "<%= %>" is more likely similar to use Response.Write in your code. so these tags are used to display the value to the response object.
That's why,as per my understanding, You can't used these tags to set commandargument property of controls unless you are using DataBinding. If you are using DataBinding then these tags "<%= %>" are used to set the property of controls.
Because you are here looping through each item in list on html table, my suggestion is to use GridView or Repeater and then Bind through your List Object. if you are using this way, you can get rid of unwanted formatting issues of html tables also.
Refer http://msdn.microsoft.com/en-us/library/6dwsdcf5(VS.71).aspx
If you want to use repeater then you can use these specific tags, and this should be your code(not actual code, just sample one)
<asp:Repeater id="myRepeater" runat="server" >
<ItemTemplate>
<div>
<asp:LinkButton runat="server" id="EditBtn" CommandName="edit"
CommandArgument="<%#Container.DataItem.TrainingId %>" Text="Edit"
OnCommand="editbtn_OnCommand" />
</div>
</ItemTemplate>
</asp:Repeater>
I've create my own UserControl called 'ReevooBadge' and have placed it in my listview by registering my UserControl. However, my UserControl isn't visible in the ListView. Any sugestions for this problem?
This is my User Control
<%# Control Language="C#" AutoEventWireup="true" CodeBehind="ReevooBadge.ascx.cs" Inherits="KiaEurope2010.Website.controls.Addons.Widgets.ReevooBadge" %>
<a class="reevoomark <%= this.ClassName %>" href="//mark.reevoo.com/partner/<%= this.CountryCode %>/series:<%= this.SelectionIdentifier %>"><%= this.ReviewsTitle %></a>
I need to implement this in my ListView by the following code implementation
<asp:ListView ID="lvItemCarousel" ItemPlaceholderID="carrouselitems"OnItemDataBound="lvItemCarousel_ItemDataBound"
runat="server">
<layouttemplate>
<asp:PlaceHolder ID="carrouselitems" runat="server" />
</layouttemplate>
<itemtemplate>
<li>
<asp:HyperLink runat="server" ID="hlItem">
<asp:Image runat="server" ID="imItem" />
<div class="modelTitle">
<asp:PlaceHolder runat="server" ID="phReevoo" Visible="false">
<rhm:ReevooBadge runat="server" ID="ReevooBadge" />
</asp:PlaceHolder>
</div>
</asp:HyperLink>
</li>
</itemtemplate>
</asp:ListView>
Above I register my custom User Control
<%# Register Src="~/controls/Addons/Widgets/ReevooBadge.ascx" TagPrefix="rhm" TagName="ReevooBadge" %>
And in the Item Data Binding
protected void lvItemCarousel_ItemDataBound(object sender, ListViewItemEventArgs e)
{
//...
phReevoo.Visible = true;
ReevooBadge.ModelItem = this.Item;
ReevooBadge.CountryCode = KiaEurope.SitecoreLayer.Reevoo.Settings.GetReevooKey(LanguageCountryCultureHelper.CurrentCountryCode, Sitecore.Context.Language);
}
However, the user control isn't visible in the ListView.
I'm not sure how you're getting your code to compile because I couldn't reference phReevoo (the placeholder control) directly in the ItemDataBound event.
I needed to use the following:
e.Item.FindControl("phReevoo").Visible = true;
The same would apply if you tried to reference ReevooBadge.
To make the testing easier I created a web user control and used this as a substitute for your custom user control. After binding to a simple List<string>, the control showed without issue.
I would suggest checking if your user control is actually rendering outside of the ListView.
Listview binding code
<asp:Content ID="Content3" ContentPlaceHolderID="leftColumnPlaceHolder" runat="server">
<asp:ListView ID="lvQuestions" runat="server" OnItemDataBound='lvQuestions_ItemDataBound'>
<LayoutTemplate>
<div id="itemPlaceholder" runat="server">
</div>
<asp:Button ID="btnSubmitAnswers" runat="server" Text="Submit Answers" OnClick="btnSubmitAnswers_Click" />
</LayoutTemplate>
<ItemTemplate>
<div>
<%# Container.DataItemIndex + 1 %>:<%# Eval("Body") %>
</div>
<asp:RadioButtonList ID="rdlAnswers" runat="server" DataSource='<%#Eval("ExamAnswer") %>' DataTextField='Body' DataValueField="AnswerId">
</asp:RadioButtonList>
</ItemTemplate>
</asp:ListView>
</asp:Content>
While fetching the listview items on submit button click..like below,
we are getting qsnItem.DataItem as NULL.
foreach (ListViewDataItem qsnItem in lvQuestions.Items)
{
}
Please suggest what is going wrong here.
The DataItem of all databound web-controls in ASP.NET are null on postbacks when you don't DataBind the control again, which is unnecessary when ViewState is enabled(default).
So you can use the controls in your templates to get the values:
foreach (ListViewDataItem qsnItem in lvQuestions.Items)
{
RadioButtonList rdlAnswers = (RadioButtonList)qsnItem.FindControl("rdlAnswers");
}
If you need to old values you need to load them from database or use the ListViewUpdatedEventArgs.OldValues Property.
I have a problem and I need your opinion. I have a control with a MultiView and each view will be a different render for the control's output, it will be about 10 different views. Inside each view I will have a repeater that will repeat a few rows, this repeater will be the same for all views and since the MultiView only allows 1 view to be show at any one time, I though to have the repeater with the same ID, so I don't have to make 10 bindings and create 10 OnItemDataBound events with the exact same code in it, but ASP.NET don't let me have the repeater with the same ID (it should be smarter than that for this case). I am using C# and v4 of the framework.
Here's the MultiView code:
<asp:MultiView id="MultiView" runat="server">
<asp:View id="h400" runat="server">
<div class="latest_Wide">
<h3>Wide</h3>
<asp:Repeater id="rptLatest" runat="server" OnItemDataBound="rptLatest_OnItemDataBound">
<ItemTemplate>
<p>• <asp:Literal id="litPostTitle1" runat="server" /></p>
</ItemTemplate>
</asp:Repeater>
</div>
</asp:View>
<asp:View id="h200" runat="server">
<div class="latest_Narrow">
<h3>Narrow</h3>
<asp:Repeater id="rptLatest" runat="server" OnItemDataBound="rptLatest_OnItemDataBound">
<ItemTemplate>
<p>• <asp:Literal id="litPostTitle2" runat="server" /></p>
</ItemTemplate>
</asp:Repeater>
</div>
</asp:View>
...
</asp:MultiView>
How can I solve this problem. Remember I don't want to make 10 repeater bindings and have 10 OnItemDataBound events with the exact same code, for the case you suggest to give the repeaters different IDs.
This isn't pretty... but:
Assume your ASCX:
<asp:MultiView id="mvPostDisplay" runat="server">
<asp:View id="h400" runat="server">
<div class="latest_Wide">
<h3>Wide</h3>
<asp:Repeater runat="server" OnItemDataBound="rptLatest_OnItemDataBound">
<ItemTemplate>
<p>• <asp:Literal id="litPostTitle1" runat="server" /></p>
</ItemTemplate>
</asp:Repeater>
</div>
</asp:View>
<asp:View id="h200" runat="server">
<div class="latest_Narrow">
<h3>Narrow</h3>
<asp:Repeater runat="server" OnItemDataBound="rptLatest_OnItemDataBound">
<ItemTemplate>
<p>• <asp:Literal id="litPostTitle2" runat="server" /></p>
</ItemTemplate>
</asp:Repeater>
</div>
</asp:View>
...
</asp:MultiView>
In your codebehind:
private void DataBindRepeater()
{
View activeView = this.mvPostDisplay.GetActiveView();
Repeater myRepeater = this.FindRepeater(activeView);
if (myRepeater != null)
{
myRepeater.DataSource = this.GetDataSourceFormSomewhere();
myRepeater.DataBind();
}
}
private Repeater FindRepeater(Control container)
{
if (container is Repeater)
{
return container as Repeater;
}
else
{
foreach (Control c in container.Controls)
{
Repeater retVal = this.FindRepeater(c);
if (retVal != null)
{
return retVal;
}
}
return null;
}
}
And simply call DataBindRepeater after you've determined the appropriate view. Please note rptLatest will not be set, therefor you will need to get a reference to your repeater in your handler using either the sender, FindRepeater, or possibly something less hackish.
Have you considered making the repeater a user control? This way you have all the repeater binding code once in your user control. Each view will have it's own instance of the usercontrol.
Is this a direction you are willing to take?
I have two repeaters bound to object collections. They both work fine. But when I move repeater B to repeater A's FooterTemplate the serverside declaration of repeater B disappear.
This is not a parent/child relation.
Any ideas why this happens?
Update:
<asp:Repeater ID="myOuterRepeater" runat="server">
<ItemTemplate>
...
</ItemTemplate>
<FooterTemplate>
<asp:Repeater ID="myInnerRepeater" runat="server">
<ItemTemplate>
<asp:Button OnCommand="btnRemove_Click" ID="btnRemove" RunAt="server" />
<%#Eval("ItemId")%>
<%#String(Eval("Amount"))%>
<ItemTemplate>
</asp:Repeater>
</FooterTemplate>
</asp:Repeater>
When I bind:
myOuterRepeater.DataSource = myCollection
myOuterRepeater.DataBind()
Dim innerRepeater As Repeater =
myOuterRepeater.Controls(myOuterRepeater.Controls.Count - 1).Controls(0).FindControl("myInnerRepeater")
innerRepeater.DataSource = myInnerCollection
innerRepeater.DataBind()
When nesting a control (including a second repeater) inside a repeater, it is not longer part of the page but part of the enclosing repeater.
You will need to use FindControl(string) to get a reference to the nested repeater:
Repeater nested = enclosingRep.FindControl("nestedRepeaterId");