Finding And Accessing Elements Of A WebUserControl?
Mar 3, 2010
I am creating a WebUserControl in ASP.net and want to be able to access elements of that control later. When I access them though I am trying to access them together. For example, adding a CheckBox and a table to a control and then finding the CheckBox, checking whether it has been ticked and if it has been ticked, get the values from the TextBoxes.
I currently have everything loading on the page from the custom controls, but when iterating through the controls on the page, there doesn't appear to be a control of my WebUserControl type. All of the controls are there on the page, but they exist as seperate ASP.net controls.
Am I thinking about this wrong? Is there a better way to do this?
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Feb 2, 2011
How can I access a control on page a.aspx from a webusercontrol.ascx
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if this were on the same page no problem.
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Mar 11, 2010
I have the following code for my page:
[Code]....
And the following .cs file associated with it:
[Code]....
I would like to be able to do the following in the .cs file for this page:
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Jul 12, 2010
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Feb 25, 2011
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Sep 20, 2010
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Nov 3, 2010
Its not executing statements in if block in my method
Master Page:-
page load event:-
Control c = new Control();
DoSomething(c);
My method:-
protected void DoSomething(Control control)(
{
foreach (Control c in control.Controls)
{
if(typeof(c).Equals(Telerik.Web.UI.RadEditor))
{
Telerik.Web.UI.RadEditor rad = c as Telerik.Web.UI.RadEditor;
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rad.CssFiles.Add("~/styles/myStyle.css");
rad.CssFiles.Add("~/styles/myStyle2.css");
rad.CssFiles.Add("~/styles/myStyle3.css");
}
else
{
DoSomething(c);
}
}
}
my content page:-
<asp:Content ID="Content2" ContentPlaceHolderID="ContentPlaceHolder1" Runat="Server">
<telerik:RadEditor ID="Editor1" EnableEmbeddedBaseStylesheet="false" EnableEmbeddedSkins=false runat="server">
</telerik:RadEditor>
<telerik:RadEditor ID="Editor2" EnableEmbeddedBaseStylesheet="false" EnableEmbeddedSkins=false runat="server">
</telerik:RadEditor>
[EDIT] ok when debugging..I rt clicked "c" and then Quick watch...it says "The name 'c' does not exist in the current context" (?!?!) how so ?
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Oct 3, 2010
i have found out a way to find controls on content pages by using
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Feb 12, 2010
Could someone give me a small example how i can make reusable WebUserControl (.ascx) file.Basically i need to make a employee lookup utility where users enters employee id to get Emplyee information.Once the Emplyee information is available, it is used in various data entry tasks by the page that includes the control.
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Feb 9, 2011
In the project I have some custom WebUserControls for form elements (they encapsulate some standard validators and other system specific functions). My user controls are "DropDownListField" and "TextBoxField". In the code behind of a page I have this code:
string parameterValue = null;
foreach (object control in myMultiView.Views[myMultiView.ActiveViewIndex].Controls)
{
if (control.GetType() == typeof(DropDownListField))
parameterValue = ((DropDownListField)control).Value;
if (control.GetType() == typeof(TextBoxField))
parameterValue = ((TextBoxField)control).Value;
}
For some reason the "if" statements always return false even when I step through the code and see that "control" is getting assigned my web user control. This code is in another place in the project exactly the same except in the other location the standard .net controls "TextBox" and "DropDownList" are used and in the other location the code works. why this wouldn't work with web user controls?
UPDATE: Hmm so in debugging I found this:
?control.GetType();
BaseType: {Name = "DropDownListField" FullName = "WebUI.UserControls.Fields.DropDownListField"}
?typeof(DropDownListField);
BaseType: {Name = "UserControl" FullName = "System.Web.UI.UserControl"}
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Nov 4, 2010
I want to add a webusercontol which contains a textbox and a label to the gridview control. I am binding a gridview with a datatable dynamically.
Here is my code:
@ Register Src="CompareBox.ascx" TagName="CompareBox" TagPrefix="objCompareBox" %><br>
<asp:GridView ID="grdfoneBoxContainer" runat="server">
<Columns><br>
<asp:TemplateField HeaderText="User control"> <br>
<ItemTemplate><br>
<objCompareBox:CompareBox ID="CompareBoxCol1" runat="server"/><br>.......
txt & lbl are two properties that are declared in WebUserControl but it's giving object reference error .
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Sep 25, 2010
i have one webusercontrol in this i have 6-textboxes i want to write jscript validation for this.... how can i achive it.
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Jul 23, 2010
Can anyone tell me how we can insert webusercontrol in Table?
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Feb 11, 2010
I have parent page which loads child control which in turn contains DataGrid with template field and button has associated Click() event with it. Problem is that Click() event is not actually called at all. Sample code is below.
UserControl [Code]....
Parent Page
[Code]....
I put debugger into LinkButton1_Click event of user control but it never goes there.
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Feb 9, 2010
I had this problem: I created a WebUserControl that used som Ajax stuff - hence it needed a ScriptManager.
The problem was that I couldn't add it to the WebUserControls html code (the .ascx file) since the WebUserControl sometimes was placed into a parent page that already had a ScriptManager, and I couldn't add a ScriptManagerProxy since the parent page sometimes didn't had a ScriptManager.
Alot of people just use a ScriptManager on the MasterPage, but this fails if: one doesn't use a MasterPage or one uses iFrames etc. that uses stand alone aspx pages, like Thickbox might do...
Here's the solution:
in the WebUserControls code behind (.cs file), put this:
protected override void OnInit(EventArgs e)
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May 25, 2010
i was made 'webusercontrol'
and i use this:
event 'msgok' :when btnOk clicked
event ''msgcancel' : when btnCnl clicked
sub 'show' : show this dailog
problem : when i add my 'webusercontrol' to a page,
i can add events(msgok,msgcancel) to page codebehind,
but i cant add this to updatepanel tiggers.
make update panel able to add my 'webusercontrol' events ??
webusercontrol code:
[Code]....
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Feb 1, 2011
<%@ Page Language="C#" AutoEventWireup="true" CodeFile="Default.aspx.cs" Inherits="_Default" %>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<%@ Reference Control = "CHEADER.ascx" Page="~/Default.aspx" %>
<%@ Reference Control = "CLEFT_NAVIGATION.ascx" %>
<%@ Reference Control = "CCOPYRIGHT.ascx" %>
<%@ Reference Control = "CBOTTOM_NAVIGATION.ascx" %>
<%@ Reference Control = "CPAGE0001.ascx" %>
<%@ Reference Control = "CPAGE0002.ascx" %>
<%@ Reference Control = "CPAGE0003.ascx" %>
[code]...
none of the usercontrols appear thats is if i replace "WebUserControl1" by name CHEADER it says CHEADER? what is that!!asp.net c# vsts2008
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Apr 15, 2010
I am trying to create a chat application like Facebook
My chat windows are in the footer control of the website, and C# code also in footer's CS file, i need to call C# function from footer CS file into javascript included in my footer.aspx file,
i have tried it by ICallbackEventHandler, but WebForm_DoCallback(this,arg,RecieveMessage,"",null,false); simply postback my current page, but i need to postback footer.aspx only and call "public void RaiseCallbackEvent(String eventArgument)".
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Mar 29, 2010
I have a textbox on a webusercontrol thats on a webusercontrol thats on a webusercontrol thats on a page.
I tried using the javascript below but it cant find the control.
<asp:Content ID="Content1" ContentPlaceHolderID="CustomerContentPlaceHolder" Runat="Server">
<SCRIPT language=javascript>
var control =
alert(control)
if( control != null ){control.focus();}
</SCRIPT>
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May 5, 2010
I have a page, which load a tab with usercontrol this usercontrol inturn loads an another usercontrol that has treeview. Issue: On (!Postback) of treeview control page_load, this load is gettting called twice. it is not callign the page_load of page but just the control page_load twice.
Tried: changed autoevenwireup from false to true, true to false (no change) Add/Remove of EnableViewState="true" ViewStateMode="Inherit" doesn't make any difference.
but if i add another usercontrolB and load that instead of this controlA, the ControlA still gets called on page_load once and ControlB also once.
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Aug 27, 2010
I'm having a problem with a Webusercontrol that has an asyncfileupload control. My websusercontrol is being loaded in a placeholder control that's wrapped by an updatepanel.Due to asyncpostback, I have to load and clear the placeholder's controls.
The webusercontrol works flawlessly, except the asyncfileupload, which doesn't want to upload at all. I can assure that the code is without error, because I used to have the webusercontrol running as an *.aspx site. control has to be cleared and reloaded with every asyncpostback ?
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Dec 9, 2010
i have a WebUserControl that have a lable for show message how can i send a value to the lable from Page to my WebUserControl at runtime.
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Jan 5, 2010
I seem to be having a problem with my visual studio 2005/2008 installation or something because it isn't providing any IntelliSense whatsoever for controls registered on web.config files in folders different from the root, but it isn't showing any errors neither. Is this behavior normal?
I have access only to the folder of my sub-app, so I can't modify the root's web.config file. Well I COULD, but I'm NOT allowed to.
What I'm trying is to register some WebUserControl's on the web.config file for sub-app folder, so all the pages in my sub-app can use the WebUserControl's without having to register them on every page, but I'm not getting IntelliSense for those controls registered on the web.config file on my sub-app folder, but I do get IntelliSense if I register them on the root's web.config file. IntelliSense for everything else appears to be working fine.
In the web.config file on my sub-app folder I have something like the following:
[code]....
am I doing something wrong?
Update Now I have upgraded to VS2008 SP1 and the issue persist
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