Forms Data Controls :: Databinding Composite Control Properties Inside A Repeater?
Jul 14, 2010
I have a composite control inside a repeater. I am trying to set the controls public properties inline like so (this is a simplified example):
<uc1:Control runat="server" ID="id" Value='<%# Eval("value") %>'>
When I place the repeater inside a user control INSIDE ANOTHER user control and onto the page this works - the property is correctly set, if I inspect it inside the EnsureChildControls() method of the custom control the composite control's Value propertyis set to Eval("value") as intended.
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Nov 26, 2010
I need to access a control inside a repeater and change its properties. To enable it or not. I got an erorr message Object reference not set to an instance of an object. Here is my code inside a method. protected void
rptCAP_ItemDataBound(object sender, RepeaterItemEventArgs e)
{
LinkButton lnDel = (LinkButton)rptCap.FindControl("lnkDelete");
lnkDel.Enabled = false; //<<<<< this is where the error occur
}
The name of the repeater control is id="rptCAP"
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Aug 4, 2010
I have a asp:repeater control which I am using to display a photo and the Name. So for this I have to execute SQL query and unfortunately I dont have the control of the database - table design. So the photo comes from one table and the Name comes from another table. I wrote 2 sql queries to get both these information created 2 sqldatareader. So now I have to bind the repeater control to both of these reader. But I know it does not work. Is there any other way I can do this? I even tried to nest a repeater control inside another. But that does not work anyway.
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May 3, 2010
I have a strange problem. I have made a PagedRepeater control, which inherits from the Repeater, from a tutorial I saw here: http://www.4guysfromrolla.com/articles/020905-1.aspx. It's in VB and I'm in C#, and it didn't quite have all the features I was lookingfor, so, I've modified it quite a bit. I added support for a SqlDataSource control, as well. The only problem is, that it always returns the first item from the SqlDataSource, even when the CurrentPageIndex on the PagedDataSource is set to a different value.
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Jan 12, 2011
I would like to ask you what is the best practice for developing composite user web control with multiple controls inside from the stand point of dealing with properieties. In my situation I would like to use header menu bar with logos, buttons, java baset visible/hidden menus itc as web control. I was successfull in implementing new control in my project.
But my question goes to issue of properties for ALL OF controls. I know how to hard code all required properties like: text, visible, enable for all controls. It's a lot of work. ( This is the very edge of my asp.net comprehension ) Is there a more elegant way provide an access to controls's properties without hard coding seperatelly?
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Mar 17, 2010
How to create Grid view control inside Repeater control.
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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>
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Feb 28, 2011
I've got a composite control (class) that exposes an asp:Label through a get-property. Is is possible to set the Text property of the Label through aspx-code?
I'd like to do something like this:
<cfw:MyCompositeControl runat="server" Label.Text="Test" />
One solution is adding each property to the composite class (like a public LabelText), but I'd like to set any property of any child control. So as new features of child controls become available, I'd like to be able to use them on my composite control. So basically I would like to set any property of the exposed child control.
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Feb 23, 2010
I am writing a custom composite WebControl and want to expose styles of child controls it encapsulates to the ASP.NET designer. The code I currently have is similar to the skeleton below (which for simplicity only has one child control).
With the code below, I can see property "ChildPanelStyle" in the designer, but when I try to modify one of the properties (e.g. CssClass) in the designer, it immediately resets itself to its default value. It looks like the designer serialization isn't happening.
What am I doing wrong?
UPDATE
I've updated the sample with an additional style property that is managed directly by the custom control, rather than simply being the property of a child control.
The HeaderStyle property is persisted properly by the designer, but the ChildPanelStyle property isn't.
Of course I could manage all my styles like HeaderStyle, and apply them during rendering, but I'm hoping there's a simpler solution whereby child controls can take care of themselves, and I don't need any custom rendering.
[code]....
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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
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Apr 16, 2010
I have a user control inside a repeater. I am binding a collection of objects to the repeater.
My user control has a public property to retrieve the object (setobject)
How do i pass each object through to the user control and not just the object property value? What is the syntax to do this?
[code]....
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Jan 3, 2010
I have a repeater control on my page. Here's my code:
[Code]....
I would like to change a background color of the item's <div> when user checks the chechbox. I have an event handler for CheckedChange event but I don't know how can I get access to this div from the event handler.
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Nov 7, 2010
If a composite server control normally encapsulate styling information inside, it is an example of code encapsulation and modularization. However if css properties are included inside the composite control, it is not ideal for code/styling separation and css code re-use principles. Now which consideration should be the main consideration?
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Jan 31, 2010
got an example of a repeater inside a repeater (dataBound) code behind?
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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?
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Jul 12, 2010
I have repeater in which I have 2 hyperlink in the footer of the repeater and I want that the hyperlink can navigate from the page_load
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Feb 6, 2011
I am using Nested Repeater repeater1 and repeater2 in my project . one button is there inside repeater2 but i cant use that button using e.commandname
so how to use that button and how to write code on it.
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Nov 22, 2015
I have bootstrap accordion and it is inside repeater,
<asp:Repeater ID="Repeater1" runat="server" >
<ItemTemplate>
Employee Name: <ul><%# Eval("Name") %></ul>
[Code]....
There is one employee, so the first two accordions is working fine from toggle up and toggle down
SCENARION 2:
There are 3 employees, for the first employee the first two accordions is working, but the rest are not.
So the problem here is when I click the accordion of second employee it does not toggle down but the first employee's accordion is going down.
What I want here is each employee can toggle down and toggle up their own accordions, even though that accordion don't have data.
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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].....
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May 7, 2015
i want to bind data after performing delete operation using webmethod.
as i delete record from a list, i want the remainig records binding through webmethod....is it possible?? because i am not able to get repeater in my static webmethod
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May 7, 2015
I have two dropdownlists inside a repeater. And based on the value I pick in the first dropdownlist the second needs to get populated (both need to be populated from the DB via stored proc). I am adding the code I have so far but it's not complete
<asp:Repeater ID="rpt" runat="server" OnItemDataBound="rpt_ItemDataBound">
<ItemTemplate>
<tr>
[Code].....
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Dec 25, 2010
I have a repeater control which looks like so: (Trimed it to show the essentials)
[Code]....
And i have a class which looks like so:
[Code]....
Is there anyways i can use the class properties to populate the repeater control? Probably modify the class or something?
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Aug 22, 2012
I have one repeater control in my web page.
And i want to bind this repeater control from button.
But button is in Update panel in ajax.
And repeater control is outside the updatePanel...
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May 7, 2015
How to bind chart in datalist dynamically in asp.net c#.
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Apr 29, 2010
I'm working on building a an ASP.NET composite control that is a wrapper for a GridView object. I have been able to figure out how compose the control in order for the markup to appear correctly when added to an ASPX page. Now the issue I'm having is that when I drop an instance of the control on a form from the toolbox, I can't interact with the control using the functionality exposed by a GridView (e.g. columns editor, data source selector, etc.), and I don't see any design-time rendering of the child GridView control. What I would like to do is to basically forward the designer behavior of my composite control down to its child GridView control. I have experimented with implementing a custom designer class that inherits from GridViewDesigner that simply initializes itself using the GridView child of my composite control. However, this doesn't seem to work, as I encounter an "object reference not set to an instance of object" error at design time; I'm wondering if this is even the appropriate strategy to achieve what I'm looking for. how to enable GridView-like design time behavior in composite controls. I have scoured the Web looking for articles on how this is accomplished, but I've surprisingly found virtually no resources on the topic.
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