Web Forms :: UserControl Removed When Load Dynamic One

May 20, 2010

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:


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Web Forms :: Usercontrol Doesn't Load Through Dynamic Button

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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.


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C# - Raising The Load Event Within A Dynamic Loaded Web Usercontrol?

Jan 19, 2011

I need to load a web user control dynamically.

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Web Forms :: Dynamic LinkButton Creating DIVs Getting Removed After PostBack

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I have created Dynamic LinkButtons. Each of which has a click event and some particular output, Its working fine this way. E.g.  

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Namespace Removed In Web.config Not Removed In A Page With Master?

Sep 12, 2010

I have defined this in the web.config of a subdirectory

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App is imported in the parent web.config file, Tom and App have classes with the same names.To avoid errors resulting from ambiguous class names I removed the App namespace from the sub-directory where the Tom namespace is used.

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Web Forms :: Dynamic Usercontrol Unload By Itself

Jun 11, 2010

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??

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Web Forms :: Load Usercontrol In Callback?

Sep 16, 2010

How to load usercontrol in (callback or Page methods or Jquery).

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Web Forms :: Load An UserControl To A Page?

Oct 27, 2010

i have some usercontrols in "~/Pages/"

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Web Forms :: UserControl's Load Event Is Not Fired?

Mar 16, 2011

I have a Page, that has UserControl1.

UserControl1 has UserControl2.

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Web Forms :: How To Load Dynamically UserControl That Contains Asp Controls

Jan 19, 2011

I have UserControl that has asp control(<asp:Button runat="server" ID="btn" />) and I want to render it.
I tried 1


It doesn't works because it says that each control that has runat="server" must be in Form.I also tried 2:Because loader.Form is null, I create HtmlForm and added the ctrl to it and then added HtmlForm to loader's Control, BUT it says that it has 2 HtmlForm. So, instead I "injected" HtmlForm to loader like this

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Web Forms :: Dynamically Load Usercontrol On TabClick?

Nov 16, 2010

When it comes to the usercontrol specially when they are loaded dynamically on the basis of certain conditions then it becomes a very confusing work. I have read in many forums that the dynamic controls have to be loaded in OnpreInit or OnInit. Some of those links are[URL] But this is useful only when if the we know that we have to load UserControl1, UserControl2 without considering any conditions. But what if I have a Tab control and for each Tab Click I have to load the UserControl dynamically. In that situation how can we add the control in either OnPreInit or OnInit. If I am not mistaken then in such case, then we can add usercontrol in certain events. If we are using a TabControl then we load in Tab_Click , if we are using Menu Control then we use Menu_Click and depending
upon the particular tab or Menu we load associated usercontrols. Hence in these conditions, how can we go with the logic mentioned by above links. I have this confusion for very long time . I am posting little portion of my project here. I am using RadTabControl but it doesnt matter if it is Microsoft TabControl. In the aspx, I have a code to define RadTabControl.

MultiPageID="tabDetails" SelectedIndex="0"
OnTabClick="tabMemberDetails_Click" ScrollChildren="true">

In the code behind, I am loading usercontrol on the basis of the particular TabClick. tabMeberDetails_Click fires whenever I click on the tabs.ViewState["ControlName"] stores UserControlName on the basis of certain condition and finally i load the usercontrol.

proteced void tabMemberDetails_Click(object sender,
RadTabStripEventArgs e)
UserControl control = (UserControl)LoadControl("~/Controls/"
+ viewDef + ".ascx");
after this I add control to the RadTabStrip.................. and call bind method.........

As you can see from above, I am loading my usercontrol in tabMemberDetails_Click event. I see no other choice to do it in OnPreInit. Can anyone answer if this is the right way to do or there is another way that complies with the logic in the links given above.

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Web Forms :: Dynamically Load An UserControl With Parameter?

Aug 7, 2010

I have this user control :


and i load it dynamicly in Default.aspx like this :


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Web Forms :: Dynamic UserControl - No Events (delete - Update)

Jul 22, 2010

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:


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Web Forms :: Nested Dynamic UserControl Drops Value Of Textbox - Not Dropdownlist?

Aug 12, 2010

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?

[^--loads] asset.ascx
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ASPX page code (hosts core dynamic user controls)


ASPX Code behind


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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"&nbsp; %>

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.


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Iis - Load Dynamic Webpage (want To Indicate Which Part Of Page Load First In Classic)?

Mar 16, 2011

we are creating a custom content management and out portal page is bit bulky it is about 60Kb without images.

and during loading the page in some browser we can see some parts of site load faster than the other parts of the site where as we want to indicate (or instruct the web server) to load some of the areas first then load rest of the page.

is there any particular setting in IIS for is there any particular method in classic asp for doing that?
also I have the same question in asp.net.

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Web Forms :: Load Into Placeholder By Clicking Button In Currently Loaded Usercontrol

Oct 23, 2010

How can I load a usercontrol into a placeholder on the parent page when a button on the currently loaded usercontrol, in thesame placeholder is clicked: I have a page called default.aspx that has a placeholder called placeholder1 on it into which I want to dynamically load a usercontrol I have 2 usercontrols, user1.ascx and user2.ascx user control user1.ascx has a linkbutton, when the linkbutton is clicked, I want the event to load the usercontrol user2.ascx into thesme placeholder, that is placeholder1

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Forms Data Controls :: Load The Same UserControl Multiple Times?

Jan 27, 2011

I have a simple UserControl that I've created that simply allows a user to enter the date. For the time being, it has a single Textbox with ID="tbDate". I am trying to dynamically add this control multiple times via (for example) `placeholder.Controls.Add(LoadControl())` but am receiving the error "An entry with the same key already exists". I could, perhaps, change the ID of the elements but then it would be difficult to grab the value entered by the user.

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Web Forms :: Dynamic Adding User Controls / Difference Between UserControl And WebControl

Mar 16, 2011

I have what is probably a basic question but I do not understand if/why there is a difference. I have a simple asp.net page with a staticly created DropDownList and Panel control. The user can select one of three options if the drop down (Employee, Company, Address) which should load the respective custom UserControl into the panel below. By default, I have the Employee control selected in the drop down and it should be displayed on the intial Page Load (!Page.IsPostBack).

If I do the following it performs the desired behavior on the intial load:


If I try the following, the User Control does not appear on the initial page load:


I noticed if I do it with a textbox instead of a UserControl, it works however:


I assume there is some sort of behavioral difference in the way the loading is done between a UserControl and WebControl.

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Web Forms :: Load UserControl At Runtime And Invoke Methods Present - Dynamically?

Jun 20, 2010

How to load UserControl at runtime and invoke the methods present in that usercontrol dynamically( at runtime)?

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Web Forms :: Dynamically Load And Display UserControl Using JQuery AJAX And WebMethod

Oct 3, 2012

I want to use same functionality in Ajax:Accordion. Looking for the code for this as well as instead of label in user control i want to bind the grid view.

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Web Forms :: Dynamically Load UserControl, Access Properties In Parent Page Without Recreating In PostBack

Nov 15, 2010

I have several usercontrols which are loaded based on business logic.However, all of them have webcontrols whose selected/entered value needs to be accessible in parent page on an event.Since there can be any combination of UserControls, I do not want to load all the UserControls in the Parent Page, since they are heavy.

I would like to load only those controls which are supposed to appear on the page, yet access the value from the usercontrol which caused the postback. (I would rather not access using Request.Form) (ViewState is open, but unsuccessful to store value in parent page's viewstate in onClick)Here is a sample scenario

Page: Home

Dynamically Loads: UserControls1

UserControls has TextBox tb and Button btn, causing onClick

When btn is clicked, I want to get value of tb in parent page on PostBack, Page creates UserControl2

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Load UserControl Via Https In .Net?

Jun 21, 2010

i'm creating an Asp.Net application and i need to load an UserControl via https. So, in my page i'm loading it with the following code:

<%@ Register src="../../pages/controls/bar.ascx" tagname="bar" tagprefix="uc1" %>

Here the UserControl is correctyle loaded via http. So what should i do to load it from the same position but via the https protocol (the certificate is already configured)?

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Programatically Load A UserControl From Another Project?

Dec 10, 2010

I like to build a components collection project so that I can use those components later on other projects. For example I created a UserControl called MyDataGrid.ascx

So suppose the projects layout are something like this:

--> IPGostarProject - Under namespace of IPGostar - contains components and lot's of user controls
--> SampleProject - here I want to use MyDataGrid.ascx UserControl from IPGostar namespace.

But as you know LoadControl function only takes virtual directory as it's parameter. So you can't load anything outside the SampleProject directory!

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AJAX :: How To Partially Load UserControl

Sep 3, 2010

i have a beginners question. I would like to build a website with n areas with usercontrols inside for different actions. For example one usercontrol should show up last n logged in users, or another usercontrol should do a long running operation and should show some calculated information on sales information etc.

Building these controls and the page for this is no problem without AJAX, but how could i make it, that the n single usercontrols load AFTER the base page is loaded with an progress bar like "Loading data. Please wait." and when its finished it should show the information.

How could i make that? I think that this is possible, cause i saw it on several websites.

My first testing was to put two or more updatepanels and in each update one usercontrols. But that didnt work.

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