How To Add Events To Controls Nested In A Repeater - C#

Sep 23, 2010

I'm currently working with a repeater which has some number of drop down lists in it determined by how many items are databound to it. I wanted to add an event to each of these drop down lists in the scenario that a user changes the selected index.

Here is what I have for the repeater (Note that I am doing all of the databinding in the codebhind.):

[Code]....

I am setting the OnTextChanged event here, however I did some experimenting with using the different events. I found that my method will not run when I am using the OnTextChanged or OnSelectedIndexChanged events. However, if I use some other events like OnLoad or OnPreRender, the method I have it set to actually runs. So in short, why is it that when I put this drop down list in the repeater only SOME of the events seem to work?

View 1 Replies


Similar Messages:

Forms Data Controls :: ImageButton Inside A Repeater That Is In Another Repeater & Events?

Jan 18, 2010

I have a user control that displays a shopping cart in an ecommerce application.

The main cart display is a repeater that renders as a html table. In one of those table columns, there is another repeater to display people associated with the products int he cart (it's a repeater in case there is a line item >1 with multiple people).

I've added an ImageButton that I want to use to change the person associated with the item. At first, when I'd click on it I was getting this error:

Invalid postback or callback argument. Event validation is enabled using <pages enableEventValidation="true"/> in configuration or <%@ Page EnableEventValidation="true" %> in a page. For security purposes, this feature verifies that arguments to postback or callback events originate from the server control that originally rendered them. If the data is valid and expected, use the ClientScriptManager.RegisterForEventValidation method in order to register the postback or callback data for validation.

So as an experiment I disabled EventValidation on the page (not the control it's self) and now I do not get an error, but I also do not ever hit the breakpoint I set in the innermost repeater's ItemCommand event.

So I wonder how I might do this without disabling EventValidation, because this control will show up on multiple pages and we don't want to edit them all. Also, I'll need to know not only the repeater containing the control's row that the event came from but also the row index of the repeater containg this one. Is this possible?

View 3 Replies

Forms Data Controls :: Show / Hide A Div In A Nested Repeater By Clicking On A Button Inside Parent Repeater?

Nov 12, 2010

what changed do I need to make to my code for it to achieve what I'm after.

At the moment I am getting a "cannot cast to type" error message with the below code.

I have also tried calling the ItemDataBound method in with the parent repeater tags and had no errors but when I clicked on the button it would just move back to the top of the page and would not hide or show any data. Also I have made the div style to none but the first record still shows its child but the rest don't.

[code].....

View 1 Replies

Add Events To Nested Server Controls?

May 18, 2010

I am building a custom master page type control i.e. sort of like a datagrid but should be easier to add custom functionality into it. It's going great but part of the desired functionality is to have a paging control that switches on and off and part of that control would be a textbox that displays the current page number and on TextChanged redirects to the new page of the dataset. The problem I'm having is that technically the textbox which has its event fired is embedded in a control that is embedded in the control you actually put on the page sort of like

Page
|
Display Control
|
Paging Control
|
Textbox

Buried all the way down there the event is not firing. Worse the postback javascript isn't even being written onto the page (Nothing on the page posts back so far this is the only bit that really needs to). I've been trawling around Google for quite a while now and picked up that I need to implement INamingContainer (done) and I need to add the control into the page's control tree (is Pre_Init too late for that?

When's a good time to Add the Control to the page?) then the event should fire, apparently. But I've been unable to find an example of best practice on this there are quite a few near misses where people are having button angst but this isn't a button. So can anyone point me in the direction of getting a control embedded in a control embedded in a control added to a page to behave properly?

View 2 Replies

Forms Data Controls :: Access Nested FormView Events

Sep 9, 2010

I have a main formview which contains another formview. In the second formview I have a section that needs to insert/update. I want to access this formviews events for example I can access the main formviews item inserted event in the code behind:

FVInvoiceHCPAgreement_ItemInserted

I can't choose the nested formview events in the code behind

ie. FVInvoicePaymentInfo_ItemInserted

I have tried adding the ItemInserted event in the .aspx page

i.e. onItemInserted = "FVInvoicePaymentInfo_ItemInserted"

but for the handles clause it can't see FVInvoicePaymentInfo.

View 3 Replies

Web Forms :: Implement One More Repeater Control Inside Existing Repeater Control (Nested Repeater)

Feb 3, 2014

I am using a repeater control and i want to use one more repeater control inside the existing repeater control . 

Like this:

<asp:Repeater ID="Repeater1" runat="server">    <HeaderTemplate> </HeaderTemplate>       
<ItemTemplate>
<!-- start child repeater -->     Here I want to use one repater control      <!-- end child repeater -->
</ItemTemplate>
</asp:Repeater>

View 1 Replies

Nested Repeater Show Data That Matches Parent Repeater?

Mar 15, 2011

I am using a repeater to build a custom table. However, I can't figure out how to make the table show subtotal if the next rows tour does not match the previous rows.

Something similar to that.

row1 tour1
row2 tour 1
tour1 subtotal
row3 tour2
row4 tour2
subtotal
total

[code].....

but this shows all the data in the nested repeater not the ones that match the parentrepeater fields for example tour,theme,dep7 should match in the child repeater

View 1 Replies

C# - Nested Repeater With Child Repeater In A User Control?

Feb 18, 2011

Edit: I have a working solution already - I would just like to know why my original attempt didn't work. My original attempt is the code below.

I'm using the approach I found here:[URL] 306154 to implement a nested Repeater. Each parent item has one or more children items (the point of having the nested Repeater) with a dropdown horizontally aligned to each child item. In an effort to re-use the nested part of the Repeater I wanted to develop that piece as a user control but couldn't get it to work. I am wondering if it is even possible and if so how?

Here is my user control apsx:

<asp:Repeater ID="NestedRepeater" runat="server">
....
<ItemTemplate>
<tr class="text" id="RepeaterItemRow" runat="server">
<td>
<%#DataBinder.Eval(Container.DataItem, "Name") %>
</td>
<td>
</td>
<td>
</td>
<td>
</td>
<td>
</td>
<td>
</td>
</tr>
</ItemTemplate>

And here is my code behind for the user control. I noticed when I debugged NestedDataSource was null even though in the parent page load the data is there:

public DataSet NestedDataSource
{
get;
set;
}
protected void Page_Load(object sender, EventArgs e)
{
if (!IsPostBack)
{
NestedRepeater.DataSource = NestedDataSource;
NestedRepeater.DataBind();
}
}

In the parent Repeater in the `<ItemTemplate> I have:

<asp:RepUC ID="NestRep" runat="server" NestedDataSource='<%#((DataRowView)Container.DataItem).Row.GetChildRows("nestedrel") %>'>

And finally the page code behind:

protected void Page_Load(object sender, EventArgs e)
{
if (!IsPostBack)
{
BuildWBS();
}
}
private void BuildPage()
{
DataSet ds = new DataSet();
ds = DataAccessLayer.GetData("System");
ds.Relations.Add("nestedrel", ds.Tables[0].Columns["Id"], ds.Tables[1].Columns["ParentId"]);
ParentRepeater.DataSource = ds;
ParentRepeater.DataBind();
}

The page loads but nothing relating to the repeater appears on the screen. So, can you see anything wrong with what I have? Is the way I tried doing this even possible?

View 1 Replies

Forms Data Controls :: Command In A Nested Repeater?

Dec 4, 2010

Users can reply to a comment made in the parent repeater by clicking a link that opens a popup that inserts a row in the replies table. This is then displayed in the repeater as soon as the lists refresh. What I need to do is have a Delete comment link that only the user that inserted the reply can utilize. How do you get the command or onclick from a ImageBUtton that is in the child segment?

[Code]....

The Enabled='<%# isEnabled() %>' disables the button foe users that are not logged in...that seems to work OK

View 1 Replies

Forms Data Controls :: GridView Nested In Repeater?

Aug 13, 2010

i'm new on this forum and my english is not the best, so i hope that i can explain my problemI have a gridview nested in a Repeater, this is the markup :

<ItemTemplate>
<asp:GridView ID="GridView1" EmptyDataText="<%#((mioDataTable)Container.DataItem).categoria %>" runat="server" AutoGenerateColumns="False" CellPadding="4" CssClass="grid" DataKeyNames="id"

[code]...

View 4 Replies

Forms Data Controls :: Hyperlink Control Inside Repeater Events?

Aug 9, 2010

I need to list URL records from DB and bind data to repeater, therefore I put hyperlink inside repeater control.

I want to fire 2 events when a Visitor click on hyperlink

1- It Update DB Record that this link clicked one time

2-Open URL in new windows

View 7 Replies

Programmatically Adding Nested Repeater Controls Upto N - Levels?

Mar 23, 2010

I'm creating a navigation menu. I've to render repeater control ul-li tags and menuitems can range upto N levels. I need to add a child repeater control dymnamically to parent control?

EDIT:
Example -
ul-li can goto n levels
<ul>
<li>
<ul>
<li>
<ul>
<li></li>
<li></li>
<li></li>
</ul>
</li>
<li></li>
<li></li>
</ul>
</li>
<li></li>
<li></li>
</ul>

View 3 Replies

Forms Data Controls :: Finding Control Within Nested Repeater?

Jun 8, 2010

What I'm trying to do is find a control within a nested repeater when the OnItemDataBound event is fired on the 'main' repeater.

[Code]....

This has driven me mental! And I've done stacks of web searches and ended up confusing myself even further.

View 4 Replies

Forms Data Controls :: Create Nested Repeater In Code Behind?

Feb 18, 2011

I am using ASP .NET 2.0 C#.

I have a Repeater that I created in my code behind. I want to create a nested repeater inside of that parent repeater. How do I go about doing that?

View 4 Replies

Forms Data Controls :: Nested Repeater Control Does Not Work?

Sep 8, 2010

I have a presentation to the CFO in two hours. I can't get a nested repeater control to work right, something to do with teh placement of the <table> tags I think.The first repeater first section works fine, then the child repeater shows the first child section right, but the next section of the parent repeater loses all the formatting applied at the parent table. I've tried vaious permutations of where to place the closing table tag of the outer and the inner and get different results, but never the right results.

Here is my current code:

<tr
style="font-size:small">

<th
style="width:100px">[code]....

These are the results I get:

View 7 Replies

Forms Data Controls :: Saving State With Nested Repeater Controls?

Feb 17, 2010

I have two repeaters (one nested in the other) with checkboxes for each. AutoPostback is set to true. ViewState is enabled. for the repeaters. The layout is similar to a treeview control.

I am having trouble retaining state for the child repeater's checkboxes when I check the parent repeater's checkboxes. How can I retain these child checkboxes as I click on the parent's.

View 1 Replies

Forms Data Controls :: Nested Repeater - How To Get Particular Field Of The Anonymous Type?

Jan 26, 2011

nested repeater like this:

<asp:Repeater ID="repeaterReportListByJob" runat="server" DataSource='<%# GetReportsByJobNID(Eval(Container.DataItem, "JobNID")) %>'>

It seems my Eval(Container.DataItem, "JobNID") is not working and I assume this is because the datasource of the outer (parent) repeater is an anonymous type. So how am I supposed to access a particular field of my anonymous type?

View 7 Replies

Forms Data Controls :: Retrieve Values From Nested Repeater Control?

Jan 4, 2011

am using C# .net.. in my page am having nested repeater control.. in child repeater there is check box and a hidden ID. i want to store(here am get strucked) the ID of checked box in to my data base.. look at the below code..

HTML page....

[Code]....

View 2 Replies

Forms Data Controls :: How To Add CheckBoxList Control In Nested Repeater Dynamically

Sep 28, 2010

How can i create Dynamic Child Repeater Control inside of Parent Repeater (This one created Dynamically)

and

How to Create a Dynamic CheckBoxList control inside of a Child Repeater Control(if we able to create in Parent Repeater Control Successfully)

View 1 Replies

Forms Data Controls :: Create New Textbox In Nested Repeater Footertemplate?

Jan 15, 2010

I have a nested repeater which displays a food menu - e.g.

Sub Heading
- Food 1
- Food 2
- Button 1

Another Heading
- Food 1
- Food 2
- Button 2

etc. etc.

What I have is a series of buttons inside the itemtemplate of the parent repeater (button 1 and button 2) which, when clicked, i need to somehow add a new blank textbox to below food 2 in whichever section it is clicked

I am having trouble doing this. See my code snippet below:

[Code]....

When I run this though, I receive an error of "object reference not set to an instance of object..."

Do I need to actually find a control within the footertemplate itself?

View 3 Replies

Forms Data Controls :: Retrieve Dropdownlist Value Inside Nested Repeater?

Jul 15, 2010

I'm having a problem trying to retrieve a dropdownlist value that is located within a nested repeater. Basically I'm trying to create a shopping cart that allows the user to select a shipping method and the shipping method is contained in the repeater. So my page structure looks something like this.

Gridview

[Code]....

To me this should work, but the problem I'm facing is that there are no repeater items. The Items.Count property in the repeater is 0. I am not calling DataBind on the Gridview nor the Repeater before this code is reached (this code is the first thing that happens in my button click event) and my binding is done inside a !IsPostBack statement in my page load. I've made sure databinding is not occurring by setting breakpoints on the code that databinds both the gridview and repeater.

It seems to me like the nested repeater is losing it's viewstate or something on a postback. If that's the case, how can I get the selected value of that dropdown control inside a nested repeater?

View 1 Replies

C# - Nested GridView Not Firing Row Events?

Aug 4, 2010

I have a nested GridView that is placed inside a ListView. The GridView renders perfectly fine with all the entities that are bound inside its datasource.

Each record in my gridview has two buttons - 'delete' and 'edit'. The issue that I am having is that the methods wired to each of these buttons never get fired.

I think the reason for this behaviour is because my ListView's data binding happens only on the first page load, and not on every subsequent postback. As a result, when a postback happens, the events of the nested gridview are never wired up again - hence my methods are not getting fired.

Here is what my code [simplified] looks like:

[code]...

I tried modifying the above code and removing the "!IsPostBack" clause, and the events actually got fired when a button inside the GridView was clicked. However, I do not feel comfortable doing a databind on every postback and think there should be a better solution than that.

View 1 Replies

Forms Data Controls :: Using Nested Repeaters And Access A Value From Parent Repeater Within The Child?

Apr 30, 2010

I am using nested repeaters and wanted to access a value from my parent repeater within the child...is this possible?

View 3 Replies

Forms Data Controls :: Client Side Dragable Columns For A Nested Repeater?

Feb 1, 2010

I am trying to find a way in whihc I CAN Move the columns of nested repeaters from one to another. Like I have three caegories of products say A,B,C and I will have X,Y,Z products within each categories and I am trying to find a way of I can find a way that on client side the user can drag items from one category to another like the drag functionality of Ajax control kit ReOrder List.

View 1 Replies

Forms Data Controls :: Bind GroupBy Values In Nested Repeater Control?

Sep 24, 2010

In a dataset i m getting values like this

IdApplication ApplicationDesc Permissions
1 User Add
1 User Delete
1 User Update
2 Role Add
2 Role Delete
3 User2 Modify
3 User2 Change

How can i Bind like in nested repeater control

In my Nested repeater control bound i need to Bind the Values like this Formate According Groupwise

User Add Update
Role Add Delete
User2 Modify Change

In the nested repeater control i taken a label in Header Template i need to bind 3 different values Application Desc once User, Role, User2 and in Item Template i had binded the <%# Eval("Application Desc")%> but i am getting like this all permissions in 1 line

Add Update Add Delete Modify Change

View 5 Replies







Copyrights 2005-15 www.BigResource.com, All rights reserved