UserControl Loading Twice / How To Fix It

Apr 23, 2010

I have added usercontrols to aspx webpage. But usercontrols page_load event is firing twice every time. tell me how to resolve this issue.

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Similar Messages:

Web Forms :: Dynamically Loading UserControl From DLL?

Nov 15, 2010

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"

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C# - Dynamically Loading Usercontrol In Updatepanel?

Feb 16, 2011

So I'm trying to dynamically load a usercontrol into a placeholder in another usercontrol inside a updatepanel.

basically I've got this markup:

<asp:UpdatePanel ID="upPopup" runat="server">
<ContentTemplate>
<UC:Popup runat="server" ID="UC_Popup" />
</ContentTemplate>
</asp:UpdatePanel>

And then this markup inside that usercontrol (Popup):

<div id="modal">
<asp:PlaceHolder ID="phPopupPlaceholder" runat="server"></asp:PlaceHolder>
<asp:Label ID="lblModal" runat="server"></asp:Label>
</div>

In the codebehind of the popup usercontrol I have:

public void Show(UserControl control) {
this.phPopupPlaceholder.Controls.Add(control);
this.lblModal.Text = "Loaded";
}

And I call this show method elsewhere with:

Popup.show(new MyUserControl());

Nothing loads into the placeholder though.

But in the show method I can load regular server-controls fine like this:

this.phPopupPlaceholder.Controls.Add(new Label(){ Text = "Label!" });

Can anyone explain to me why regular controls are loaded fine, but my usercontrol isn't loaded?

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Web Forms :: Loading A Usercontrol Into A Table Of Webpage?

Feb 14, 2011

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.

My user control code:

[code]....

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C# - Loading Usercontrol On Runtime And Reloading The Page?

Jan 29, 2011

On my page I have a placeholder where I load a usercontrol when I select an item in dropdownlist.

protected void ddlLoadCtr_SelectedIndexChanged(object sender, EventArgs e)
{
Control userControl = LoadControl("../AleSettings1.ascx");
plchldSettingsControl.Controls.Add(userControl);
}

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!

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Web Forms :: Loading Usercontrol From The Menu Gives Javascript Errors?

Mar 14, 2011

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.

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C# - Stopping A Page Waiting For Usercontrol To Finish Loading?

Jan 28, 2011

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.

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AJAX :: Loading UserControl Containing Button Dynamically Using JQuery

Jun 25, 2013

Yesterday i asked from u 'Adding-WebUserControl-to-the-page-or-panel-by-client-side-code'.

from scratch it do'snt work properly. but today I downlowded again. its work rightly.

but it just show one control on it (just show lblMessage).

How Can i shows any number of controls on the WebUserControl. ex: button, picture, ...?

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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.

[Code]..........

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AJAX :: ModalPopupExtender In UserControl.ascx Dynamically Loading Into Placeholder

Jul 28, 2010

if Panel have any aspnet control,panel not popups.otherwise working.whats wrong here ? is it impossible ?

[Code]....

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Web Forms :: Loading UserControl At Runtime And Invoke Method Of User Control?

Jun 5, 2010

I have usercontrols which are loading at runtime in my aspx... (This part is working fine).

Now i need to invoke the methods of the user control which has been loaded..

How to invoke those methods??

like if i have 3 methods in usercontrol which is loaded at runtime:

[Code]....

Now how to invoke these methods at runtime?

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UpdatePanel Dynamically Loaded Web UserControl Will Disappear After Clicking Any Button Inside The UserControl?

Mar 17, 2011

I've a ASP.Net page (Default.aspx) which will load UserControl (ucontrol.ascx) dynamically into an UpdatePanel. By using UpdatePanel, we believe we're able to prevent the entire page to be posted-back.

My problem is, within the UserControl, we have some form controls, such as inputs and buttons; after the UserControl is loaded, clicking on any button inside the UserControl will cause the UpdatePanel to be blanked. During the investigation, I found that, breakpoints within the Button1_Click() in the code-behind for the UserControl is never reached. Please reference to the code below, this references to [REFERENCE]1.

[code]....

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Forms Data Controls :: UserControl Within Gridview Loses Properties When Usercontrol Events Are Trigered

Jul 17, 2010

This is page load

protected void Page_Load(object sender, EventArgs e)
{
if (!IsPostBack)
{ [code]...

But in my ascx.cs when IButton1_Click is trigered My name is null

private string _sname;
protected void Page_Load(object sender, EventArgs e)
{ [code]...

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AJAX :: Nested UserControl With UserControl Disappears On Partial Postback

Jan 28, 2011

I have a page with an UpdatePanel with a UserControl in it. That UserControl contains a GridView with a nested UserControl that seems to disappear when the parent UserControl is rebound. I cannot for the life of me figure out why the child UserControl disappears. The code works beautifully on the first load, but any partial postback causes the "Pick" UserControl to disappear.

[Code]....

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Web Forms :: Usercontrol Constructor Parameter - Unable To Pass The Value To Usercontrol?

Apr 6, 2010

im creating site with usercontrols. I have repeater, inside it is another repeater with usercontrol. My problem is passing BindedValue to usercontrol.Bindings works fine and binds the value i need but it cannot pass the value to usercontrol. When i type it manually it works, when i bind it, it passes null (!).I've tried get,set, functions (ondatabound, onload, oninit), accessing control from code with no luck. Ive read and tried to do all the google solutions but with no luck. (even with creating usercontrol inheritance)

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Web Forms :: UserControl To UserControl - Same Object Instance Transfer

Sep 27, 2010

There are 2 UserControls UC1 and UC2, and there is one more class C. I want to share the same instance of c in both UserControls. I know that this can be possible with properties in both UC's and by registering UC2 in UC1 or vice versa. But I want the solution to be loosely coupled. Any best possible way without touching the Actual Page (which hosts UC's)? So i need some best possible way between UCs transfering C.

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C# - Call Function From UserControl On ASPX From UserControl On MasterPage?

Jan 31, 2011

I have MainLayout.master that has UC_Menu.ascx on it.

I have a page named Customer.aspx that uses MainLayout.master. Customer.aspx also contains a UserControl named UC_Details.ascx.

How can I have UC_Menu.ascx call a function that is in UC_Details.ascx with this scenario?

I've seen a few similar examples, but none that match this type of layout.

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AJAX :: Display Light Box Loading Image On Page When Update Panel Is Loading

Mar 6, 2013

I have update panel on the page to avoid postback and placed a dropdownlist control within that update panel. DrodownList is filled with Category names and also it's autopostback set to True.

Now whenever dropdownlist index change's on select, untill page loads complete  data it should show mesage as "Loading.... in center and middle of the page and background should become bit transparent". And when page load completely with data then that background and message should get disappear.

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Crystal Reports :: How To Loading Gif Image While IE Progress Bar Start Loading

Apr 3, 2010

i have developed my asp.net application along wih crystal report .... i need to show loading image on ever client and server side request .... (i.e) like when ever IE progress bar get loading i want to show my gif loading ... after IE progress bar finish its loading, my gif loading image should disappear .

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C# - Add Event In UserControl To Button Which Is In Nested UserControl

Dec 8, 2010

I have a UserControl, which contains another UserControl with Button. I want to add an event to that button in first UserControl (parent). I tried to do:

void Page_Init()
{
var btn = ChildControl.FindControl("SearchButton") as Button;
btn.Click += new EventHandler(this.SearchButton_Click);
}

but btn is null. How can I do that ?

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Web Forms :: Firing Usercontrol Event From Another Usercontrol?

Aug 12, 2010

I have 2 usercontrol in my .aspx page.

usercontorl1:

<asp:textbox id="txt" runat="server"></asp:textbox>

<asp:button id="btn" runat="server" text="send" />

usercontrol2:

Here I have gridview control with checkbox for selection of one or two records. Have one button and when clicking this , i need to get the selected records values and assign this values to the textbox which is in usercontrol1.

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Want To Display A Loading Animation While Page Is Loading

Jun 23, 2010

I want to display a loading animation while my page is loading, and when loading is complete then obviously hide it.

I am working in ASP.NET using Masterpages, just wondering there is a a simple way of doing this using JQuery?

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Web Forms :: Calling Other UserControl From UserControl?

Jul 24, 2010

have a webpage that has a button and 2 userControl placed inside the placeHolder with visible set to false.When run and click on the button, userControl1 will set the visible to true. Now userControl1 is visible and there is also a button inside this userControl1 and when click, will set userControl2 visible to true and hide userControl1. The code below is the code behide for the webpage the do the above task.

[Code]....

Is there a way to do so that when click on the button inside userControl1, is does not show userControl2? I want to do this way is because, the button is for submitting data to database and then will pop up userControl2. When there is an error, only a msgBox will pop up and does not show userControl2.

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How To Reference TextBox In One UserControl From Another UserControl

Jan 19, 2011

I have two UserControls on a MasterPage. DataEntryUC contains several TextBoxes and DropDownList. NavSaveUC contains navigation buttons. When the user clicks on a navigation button, I will be saving the data entered into DataEntryUC from the NavSaveUC UserControl.

I have a couple of tables in my DB that contain stored procedure names, control names, control types, SqlDbTypes, etc.... that correlate with DataEntryUC.

How do I reference a text box that is on DataEntryUC from NavSaveUC?

I have been working on the following code from NavSaveUC with no luck.

Dim MyControlName = "txtFirstName"
Dim MyControlType = "TextBox"
Dim MyStringValue as String
Dim tmpTxtControl as TextBox
Dim tmpDdlControl as DropDownList
Select Case MyControlType
Case "TextBox"
tmpTxtControl = CType(Page.FindControl(MyControlName, TextBox)
MyStringValue = tmpTxtControl.Text
Case "DropDownList"
tmpDdlControl = CType(Page.FindControl(MyControlName, DropDownList)
MyStringValue = tmpDdlControl.SelectedValue
End Select

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Windows - .NET Web Page Loading - The First Page Loading Fails With HTTP 404 Error?

Jan 18, 2011

We have installed a web site written by others which is compiled with Visual Studio 2008 and hosted in Windows server 2008 R2.

The IIS connection timeout is set to 120 seconds. But for some pages, the first page loading fails with HTTP 404 error but sequential refresh can bring the page up. The same problem happens for some images which fail to load in web pages. We are not very sure it is network related issue or hosting issue.

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