Web Forms :: Dynamic Usercontrol Loading When Using ParseControl() Method In VS2008
Oct 12, 2010
In the process of migrating an old VS2003 web app to VS2008, I'm running into this issue and haven't been able to find a resolution. Sample code: "Default.aspx" has a PlaceHolder(ToolHeader). In the Page_Load(), we dynamically load a user control passing in the virtual path to a helper method [public Control ParseUserControl(string virtualPath)]. This reads the content from the physical path, returns
a Control from ParseControl() method. I immediately get the following error when I open the default.aspx page in browser.
Parser Error
Description: An error occurred during the parsing of a resource required to service this request. Please review the following specific parse error details and modify your source file appropriately. Parser Error Message: Could not load type 'DynamicUC.UcControl'.
Source Error:
Line 1: <%@ Control AutoEventWireup="true" CodeBehind="UcControl.ascx.cs" Inherits="DynamicUC.UcControl" %>
Can't figure out why it can't load the type. Namespaces are looking right. I try removing the Inherits="DynamicUC.UcControl" attribute from the "ucControl.ascx", it loads the page fine. Also, this control is a simple one and has no code behind. There are others with actual code behind. They won't work if I remove the Inherits attribute.
I would like to load UserControl dynamically from DLL in the bin directory.
The dll contains several usercontrols which dynamically create webcontrols within them.
I do not have Virtual Path of the UserControls to use in LoadControl(String virtualpath) and LoadControl(Type, object[]) does not work(why the heck is it there in the first place anyways).
provide me some sample code which takes either the path of dll or assembly name "ServerControls" to load usercontrol "UserControl1" dynamically into placeholder "PlaceHolder1"
I ma trying to load a usercontrol into a table. My usercontrol contains some literal controls.
I can't set the text of these literal controls to anythign, as in my code-behind of my control, whenever I try to access my controls, they come back as null.
I have an asp.net page that has menu which loads user control dynamically when the menu item is clicked.Now in the user control i have some buttons calling javascript on clientClick.When i click this button,it throws javascript error
Microsoft JScript runtime error: '(function name)' is undefined
Here is the code snippet:
function CheckUpload() { var flag = validatePage(); var Checktext = $("#HyperLinkUploadFile").val(); if (Checktext != '' && flag) flag = true; return flag; } <asp:LinkButton ID="btnNotifyOA" runat="server" Text="Recommend Award and Notify OA & AO" ValidationGroup="Notify" OnClick="btnNotifyOA_Click" OnClientClick="return CheckUpload();" />
The above linkbutton and javascript is inside a usercontrol.
I am creating an Asp.net web site which will support dynamic data. When I am creating a dynamic web site from Scratch (from template in VS) all is working fine. But when I am trying to add dynamic entity (.edmx) file and running the application I am getting following error
"The method 'Skip' is only supported for sorted input in LINQ to Entities. The method 'OrderBy' must be called before the method 'Skip'. "
I am adding a usercontrol dynamically in my page, problum is this when i click the save button on the user control it unload itself, how do i sustail on the page untill i himself unload it??
I have a formview with some templates. This is hooked up using objectdatasource. To the default layout I add some additional Label/Textboxes dynamically based on metadata in a database. I create the additional controls in the ItemCreated event using ParseControl on a Placeholder and populate the values in the DataBound event. This all works fine.
I have been modifying the extra textboxes using a ForEach loop in the ItemUpdated and ItemInserted events of the main formview. However this modifies each textbox regardless of whether the textbox has changed. What I want is to only modify the textbox if it has changed. I have tried to hook up OnTextChanged for the additional textboxes (using ParseControl) but the handler is never getting called. I thought maybe I was making a mistake in the execution order of the page but now I'm wondering whether ParseControl isn't hooking up the event handler correctly? Anyone come across this?
Performance of Tree view control or any control. Load the data as per requirement. Display 100 records even if DB contains 2000 rows. Load as per user demand. How to implement this?
in my aspx page i have some controls loadded dynamic and other one loaded static, when i am loading the user control dynamically,the dynamic usercontrols loaded successfully, but all static control inside page will be removed! i load the user control using the bellow code inside PlaceHolder. this is my code in aspx page:
If I press F5 (IE) after user control was rendered, I get IE's warning window that IE needs to resend the information.... How can I prevent it and why does it happen?
UPDATE:Maybe there is another approach? I want to load specific control (with it's markup) when user selects it from the dropdownlist. if a postback is made the control shouldn't disappear(only if another control was selected from the dropdownlist) Everything is inside update panel!
for my dynamic user control, i am trying to do any event from that control (delete, update .... etc) but it disappeard when i make any event! this the code in the page to load it dynamically:
I have dynamic button in tab panel. I want to load a usercontrol through this button in tab panel. but it does not work!!! would some body please tell me why is that happen? I also debug my code and it works correctlly but user control does not load in tab panel.
I created (vs2008 C#) an "asp.net web server control" project. I then remove the default .cs and replace it with an "asp.net web server control" cs file which has a default name of WebCustomControl1.cs. I named the project CCContainer and renamed the .cs file as CCContainerA.cs, so the class name is CCContainerA. I then create a new (VS2008 C#) web application in which I add my custom control. After compiling CCContainer to CCContainerA.dll I create a reference to this dll in the web app, and add CCContainerA.dll to my web app's toolbox. When I drag my custom control to the webform I automaticall get this directive line:
Is there a way of stopping the main page waiting for a usercontrol to load before it can finish loading?
I have a usercontrolthat has to do a lot of DB calls which can take a few seconds making the page slow to load. Ideally I'd like the main page to load straight away and then the usercontrol content appear when it is ready.
I have a problem with calling a method on a aspx page from a usercontrol.
The case is: I have 1 main page with 5 usercontrols, when something goes wrong in the code I want to display the error message in a Modalpopup Extender. I can create for each usercontrol a different modalpopup extender but isn't much easier when I make 1 popup in the aspx page. But the problem is: How should I call a method in the aspx page that open the popup?
I have search several hours on the internet but can't find anything useful.
so I have this custom user control, just some data inside divs with a fancy css.
So inside my page I need to add it multiple times, and I do so in code behind within loop.
Now, this code doesn't work
[Code]....
and of course it works fine now. My questions would be - why? can I do it without pecifying file name and just creating control the normal way like in first example?:S
I have a webUserControl that is nested inside of another dynamically loaded usercontrol. The nested user control (harddrive) can have multiple iterations, see below for hierarchy When a postback occurs the value in the dropdownlist inside of the nested userControl is saved, but the data in the textboxes is lost. any ideas?
Hierarchy: insert.aspx [^--loads] asset.ascx [^--- loads] harddrive.ascx -- there can be multiple instances of this control inside of the asset.ascx user control
