Web Forms :: Can't Access All Of User Control Types In Code
Jun 27, 2010
I have an asp.net 3.5 WebSite application where I have a bunch of UserControls.
In some scenarios I have a reference of type Control (System.Web.UI.Control) that I need to cast to a specific User Control type (to access public properties and methods of the User Control).
The User Control classes are all declared in "the global scope", i.e. not within a namespace. However, for some reason, only some of my User Controls is possible to type in a code file and show up in intellisense and some just wont. In one scenario I could write the cast in code anyway and the site would build (but the UserControl type name did not shift in to the ordinary class name color (light green, you know) in VS text editor), but when running the page I still get the error message about missing using directive or a reference...
If I use the VS 2010 "Navigate to" feature (Ctrl+,) and search for a type I usually get one hit for the Type/Class name and another for the actual file. When searching on my User Control class names I only get the file hits, no class representation. This even goes for those User Control types I actually can access in code.
I've tried to compare the User Control classes that work and doesn't work, but I can't find any difference, they are all declared as public partial.
I have a user control called adminMenu and I use it in my index.aspx and all is fine, but I need to access a MenuItem in adminMenu and need to change NavigateUrl on the MenuItem. Tried this code with no luck:
Not sure if I should be accessing adminMenu properties from controls code behind, but when I try from controls code behind was not able to access it either.
I need to implement Code Access Security, and URL based security using the roles & types...
For instance, the (Subscriber/Basic) would need to view a different set of pages, and have different access to things then a (Subscriber/Business).
I think I can handle the Code Access security with a custom attribute, but I am unsure to how enforce a User be apart of 2 roles in the URL Authorization.
I am currently using the web.config to deny/allow access to the directories/pages.
e.g.
/Areas/Admin/web.config
[Code]....
Is it possible to force the user to be apart of 2 roles with this technique?
I 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
I have several checkbox controls on my web form that are not server controls (runat="server") How can I access these controls form my C# code? Can this be done with document.GetelementById from the server side using C#? Or some other technique?
I am not allowed to make these server controls (runat=server) because of a requirement.
I have an ASP.NET 4.0 application with some simple user controls. The user controls work fine on the design surface (VS.NET 2010), but when they're loaded during application execution, nothing shows up.
Futhermore, the various child controls of the user controls are null when referenced inside the code behind for the user control.
The code behind for the user control executes as expected, but any reference to child controls are null.
It's like ASP.NET is never parsing the ASCX to create the instances of the child controls.
I have a .aspx page that inherits from a class (Hmp.Web.Lib.HmpWebPage which actually inherits System.Web.UI.Page) . The code behind for my page starts like this.
public partial class FnmMessagesEdit : Hmp.Web.Lib.HmpWebPage
How can I access a webform control from a Web User Control?
I have a web form with some textboxes and dropdownlists. I created a Web User Control with other controls (other textboxes) inside it. Now I need to call from the web control source code the values that the controls in my web page have. How do I do it?
im using asp.net for my webpage. im also using the login control too. i want it so when the user types in the correct user name and password, it redirects to a new page called test.aspx. i dont want to use login view.
I've ready everything I can find on the built-in validators but can't figure out how to do the sort of validation I need on theclient-side (I can do it on the server-side). Business rule I want to enforce (review the gridview snippet below) is if user checks the CheckBox_EditLifeCycleRpt control but doesn't enter a value in the TextBox_LifeExpectancy control then the validation should fail.
[Code]....
Like I said I can get this done on the server-side but thought it would be a good opportunity to learn how to use one of the compare validators. Also (FYI) I'm not too good at authoring Javascript but I can copy/modify other people's code fairly well.
I'm having trouble to access a Parent's property in User Control. I don't know how to access the parent. The Parent Page's name is Search.aspx. I saw the example below and tried it:
[Code]....
Than I could access the Parent's Property, but when I ran the website I got these errors:
1. The user control is not declared in the parent page 2. The user contol has a circular reference
I Have a webpage named "Test.aspx" and a web user control named "TestWebContro.ascx",..
i have a "Linkbutton" on "TestWebContro.ascx" and "Label" on "Test.aspx",.. now my query is how can we change the text value of "label" on the click event of "LinkButton",...
