I have a web Page with 2 user controls, user control a and user control b.
On user control b is a button clicked event. In this event, it needs to call a method in
user control a.
I don't think I understand fully how ASP.NET does inheritance of controls.I have a user control, ucBase, which has an asp.net label in the ascx file. Code behind references the label and it works fine during run time if the control is not a parent for another user parent.
If I have another user control, ucChild, inheriting from ucBase, the label in ucBase's code is always null. ucChild has no controls in its ascx fileThe server controls (like the label) needs to be declared in the ascx file and not created programmatically.What needs to be done for ucBase to see its own controls when it's a parent user control?
I've got a web site that has a master page and that master page (mpMaster that has a user control ucControl1) which has a sub user control (ucControl2), this user control has a property which accepts a value. Now, I have a page that uses the master page
and on this page I have another user control (ucPageControl), I need to find a way of setting the value in ucControl2 from ucPageControl. Is this possible at all?
I am trying to assign user control from another user control ..first time its binding control successfully but when we refresh the data its giving error
saying "Object reference is not set an instance".
how to refresh data from another user control ...
My senerio below :
1 Aspx page
2. User control
calling usercontrol databinding method from aspx page but once it get refreshed ,not allowed to bind it again..
All I would like to be able to do is include one user control within another! Is this possible? I have spent the last hour searching the internet and it seems that I can't find a single thing.
In classic ASP it would be something like:
<!--#include file="EditProject.ascx"-->
I tried this but no luck!
Parser Error Message:
There can be only one 'control' directive.
Source Error:
[Code]....
Line 1: <%@ Control Language="VB" AutoEventWireup="false" CodeFile="EditProject.ascx.vb"Line 2: Inherits="Controls_WebUserControl" %>Line 3: <form runat="server">
I'm attempting to create a simple menu user control just as outlined here.
The attached code results in an "Object reference not set to an instance of an object" error, but I can't figure out why.
<%@ Master Language="VB" CodeFile="MySite.master.vb" Inherits="MySite" %>
<%@ Register src="Controls/Menu.ascx" tagname="Menu" tagprefix="my" %>
<html xmlns="http://www.w3.org/1999/xhtml">
<head runat="server">......
I have to access the parent form's controls inside an event handler method on my user control's code behind.
View 4 Repliesi have 2 user control : uc1 and uc2. and i have button in uc2 i call button1, i want to set commandArgument of button1 from uc1, how can i do this?
View 5 RepliesI want to use a couple of instances of the same control on a page. The user control is intended to display a list of records in a repeater. The aim is that the second control will show a list excluding the IDs in the first control The control has a number of public properties, including IDsInThisList, and IDstoExclude. The query will exclude the IDs in the second property.
What I would like to do is get the record IDs from the first instance of the control (IDsInThisList), and pass them to the second contro as the IDsToExclude.
I have a test page where I am setting the properties of the controls in code. As you might guess, it's not working! The first control displays the top 3 items, as desired, but the second display the records 1-7, rather than records 4-10 because it is not receiving the IDstoExclude from the first control When I response write the IDstoExclude from the first control in my testpage, the string is empty. (if I do it from within the control, it shows the IDs)
How can I get the controls to fire in order and pass values to each other?
Screen grab of test page + uc and test page code attached
[Code]....
i have:
- Default.aspx;
- user1.ascx: 1st user control containing repeater;
- user2.ascx: 2nd user control containing a detail view of row.
In page.aspx i dinamically load the repeater inside a user1.ascx.
after i want to dinamically load the 2nd user control also in default.aspx by a button inside a user1.ascx.
How i can do this? I can't load user2.ascx inside user1.ascx but only in aspx page.
I have a requirement where i need to access the methods of one user control in another user control.
View 8 RepliesI have a web user control that represents a simple message box. It is used to display simple messages like "Item has been deleted", or "The item was saved successfully".
On the other hand, I have another web user control that represents the item in the form of an editable form (I made this a user control because this is used in two different pages). I want to embed an instance of the message box user control inside the editable form. I am writing this right after the @Control directive:
[Code]....
Instead of using @Register directives, I register the user controls in web.config and so far this has worked just fine.
With the above markup, the project compiles, but whenever I try to navigate to a page that contains this construct, I get an HttpParseException exception. Furthermore, Visual Studio states that the tack w7rc9:MessageBox doesn't represent a known control.
What am I doing wrong?
I want to convert windows user control into web user control..I have the usrDataView.cs..I need to convert this file into usrdataview.ascx.can anyonr help me?...how I can convert the file...Is any method is available..
View 1 Repliesi would like to ask about how can i open user control page when i click a button on parent page, also, can i call parent's method from user control page and then refresh parent page?
View 8 Replieshave two user controls on one aspx page. UC1 has a grid which contains a link button column which user clicks. Based on the value of clicked cell, I need to show some data into UC2.How do I pass data from UC1 to UC2? How do I invoke a function of UC2 from UC1?
View 2 RepliesIt's simple to create both user control from the two world : ASP.NET+Razor or MVC 3.0.But i do not known how to consume the user control FROM the razor"_layout.chtml" page.I want to put such thing within the layout page: <uc:MyTag Prop1="" Prop2="" />So i need to declare this directive at top of the layout file : <%@ Register TagPrefix="uc" TagName="MyTag" Src="Controls/Mytag.ascx" %>
View 1 Repliesi have a web page and inside the page has a placeholder that contains 2 user controls and both visible set to false.
When i click on button1 on the page, it will set the visible of usercontrol1 to true. May i know how do i do it so that when i click on button2 that IS INSIDE usercontrol1, it will hide usercontrol1 from placeholder and set usercontrol2 visible =true?
I have a Master Page and in it I have two user controls,User control 'A' and User control 'B'.
so A and B are in the Same MAster page,I have a Button on Aand when ever i click a button I want to Load Usercontrol B(Call its Page_Load) Method...How will i do that?
this is the code but i get an error at line 'C' --- Null Reference Exception was unhandled
[Code]....
I have a user control which contains two text fields each assigned with requiredfield validators this control contains another user control contains say a button .On click of this button i need to validate the fields from the parent control text fields.I try the Page.Validate("ValidationGroup") with Page.IsValid it validates but the error message is not shown .Error message is shown only if i try to validate it from the contains which contains the required field validators ?
View 1 RepliesNow the weird thing is I have a user control UserControl1 in which I put some JavaScrdipt logic there, and I have another user control UserControl2 and I registered both in the page called Page1.aspx.I would like to call the JavaScript function resided in UserControl1 from UserControl2, however, I got an error saying the function is not defined. I think both user controls are loaded before I use them then I think the JavaScript function can been seen anyway in that page.
View 1 RepliesIs there any way for one user control to raise an event that is handled by another user control without going through the page? I am using Umbraco and do not have access to the page object.
--Edit--
Umbraco has the idea of Macro's (user controls) that it loads into pages. I can't access the page directly as this is part of the framework.
There is a publish subscribe (pubsub) pattern that I know would fit my needs well (2 user controls that need to talk to each other) but am unsure how to hook it up in ASP.Net without the page object.
I have two user controls I have some functions written on those two controls. Is it possible to invoke a function written on one user control from another user control.
View 3 RepliesI have a Web User Control. I want to use this control in other web applications, I dont want to expose the code of my web user control. If modification is required in web user control it can be extended in respective web application. to extend web user control.Any other alternative to this.
View 1 RepliesI am trying to create a web page, that use a user-control (the user control is win-form).I am getting the message : That assembly does not allow partially trusted callers.I put the dll on c:windowsassembly, but I don't know why I getting the above.Here is my code
[code]...
i have two user controls uc1 and uc2. uc1 as button and uc2 has label, so default.aspx contain both uc1 and uc2, How can i change value of label by clicking on button??? remember both are in the different user control.
View 1 Replies