How To Change Public Properties Of User Control
Jan 11, 2011
I have a very simple user control in my web site project which has public property declarations as following
[code].....
When i drag the ascx file to one of my aspx page and when i go to code behind of aspx page i can access the controls properties through intelisense, but when i run the project through visual studio i get error "The name 'uctTest1' does not exist in the current context?
This is the line where Error shows when i run the project uctTest.StartDate = DateTime.Now;
aspx page markup :
[code]....
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Jun 12, 2010
I have a master page with a user control on it. How do I change the user control's properties from a content page?In my ascx file I created this 2 property:
[Code]....
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[Code]....
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Sep 10, 2010
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
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Nov 26, 2010
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Jun 14, 2010
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Nov 9, 2010
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.
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Screen grab of test page + uc and test page code attached
[Code]....
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Oct 4, 2010
I have the following code in a class in which I call from different pages, I wanted to know where this info is being stored at as I can see it from different pages.
[Code]....
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Feb 4, 2011
I have created a very simple calendar user control that contains a public property which is used to define which month/year to display. My calendar control is placed inside another ascx control (the wrapper control essentially), which includes LinkButton controls used to toggle the calendar control forward and backward one month at a time.
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[code]....
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Mar 12, 2010
Names of the private properties of a public class?
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[Code]....
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Mar 4, 2011
I have searched high and low (and very possibly could have missed it), but in my years of programming, I have always come across one practice that seemed to be the standard in OOP, which is to use private properties in an object with public methods to manipulate the data.
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Jun 13, 2010
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using System;
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[code]...
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Aug 2, 2010
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Feb 5, 2010
How could I change (programmatically) a couple of properties in a grdiview template ? For instance, the CalendarExtender6.enabled and the textbox, Duetext.readonly.
[Code].....
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Mar 9, 2010
Here's the scenario: A class based on System.Web.UI.Page has been created. A number of content pages derive from this class. All of these content pages use the same master page. The content pages define controls which need to access things on the master page (in code-behind). This is fine - no problem. In particular, each content page has its own data grid. The grid on each page has the same name, so that common code can reference it. In fact, some event handling for the grids on each content page is identical, so would like to factor that code to the base class. Interestingly, I can actually define the event handler entirely in the base class, with no stub in the content class at all, because the wire-up of event handlers uses the event-handler name defined in the grid, and that name happens to be found in the inherited base class. All good and dandy... very cool in fact. The problem comes when the code in the base class needs to access any of the common elements from the content page's master. Remember, the master is the same, and I know the type of the master. I would like to do something like this in the base-class code:
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The problem is, that myMasterType - the type of the master page the content pages are using - is not available at compile time, at least not from a class definition for a base page. I've found articles that claim that the class name of the master is available - and it is, but not from a separate class. I CAN see it and compile with the master's class name from, for example, the code behind of the various content pages. But the actually class simply isn't available, it seems, from a pure class (the base page class). Judging from other times this question has been asked, here are common misunderstandings offered as solutions: 1. Use a page directive to declare the master type. This is not even vaguely a part of the problem, as the issue is not code in the content page, but in a separate base class which content pages inherit from. That base class is a pure class -- no .ASPX file at all. 2. Pass a reference to the master object from the content page to the base class. This can be done, but is pointless, because I can already get it, using "this.Master" from the base class! But because the type of the master is not available at compile time from the base class, it can't be passed from the content page either - unless it is passed with type MasterPage, thus losing all the properties/methods publically defined in the specific master page class. 3. Move the base page class out of the App_Code folder because the app_code folder is compiled before the other classes, and thus before the master page class. Doesn't work -- put the master page class file right in the same folder with these content pages and their master page, and the master page class is still not available at compile time from within the class. Re-summarized: Base page inherited by content pages. Content pages all use a common master page. Want to access the public properties of that master page from the base page, at runtime. Barrier is that I can find no way from within the base class to cast the master page object to the actual master page subclass being used.
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Sep 28, 2010
I'm embarrassed to ask this here because it's clearly been duplicated several times already on StackOverflow. I've read a lot of stuff including:
[URL]
I think I've done exactly what those article say, but it's not working for me.
Here's the top of my master page, named "MasterNoNews.master":
[code]....
In the first case, VS is telling me System.Web.Ui.MasterPage does not contain a definition for urrentUser. In the second case, VS says the type or namespace 'MasterNoNews' could not be found.
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Nov 29, 2010
How can one access public property of User Control In Master Page on child Pages.
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Nov 3, 2010
My UI layer calls my business layer which populates a DTO. I need to display properties from the DTO on my ASPX page. Should I create public variables on the code behind page for each of the DTO properties and reference like <%=PublicPropertyName%> OR is it ok to set the DTO instance to public and reference the properties directly like <%=dtoInstance.propertyName%>
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May 15, 2010
i have a multiple user controls, each user control has multiple properties, i am loading those controls dynamically in my aspx page,i save the user control name in a hidden field in my aspx page,so i can know whats usercontrol are currently loaded,now i want to set/get some values for Currently user control properties,how can i know the properies available for that dynamics loads control ?also how to know the class for that control ?
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Dec 1, 2010
I'm creating a web user control in asp.net using C# in which i can select a date from a calendar and display it in a textbox. when i select a date from the calender it has to be displayed in the textbox. now i need to set my own properties by which i can select datetime patterns in cs codefile. for example
usercontrol1.dd-mm-yyyy.
this is one example. now i want all the datetime patterns of "en-us". when i use that usercontrol in another page i want to set any of the properties(datetime patterns) to that control.
public partial class DateControl : System.Web.UI.UserControl
{
string dateformat;
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{
[Code].....
i said that i want set properties for my user control and create events for that..
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Mar 11, 2011
How to access userControl's properties, when use FindControl method?
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Feb 2, 2011
I have built a user control that has a public property string[] foo.
Is it possible to assign this in the actual markup?
The type of project is ASP.NET webforms / web application.
Ive tried the following syntax, but it doesnt work: (It compiles but the value is never assigned).
<abc:MyControl runat="server" foo='<%# new string[]{"Hello"} %>' />
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Jan 25, 2011
I have a user control (i.e. ascx) that comprises of two related list boxes (i.e. once you change the selected item in one list the contents of the other list update). I'm adding this user control dynamically to a page on the click event of a button (i.e. using LoadControl).I wish to set the list box datasource properties, as well as the default selected item of the parent list from my parent page so I created public properties in my user control to accomodate this. I also created an event in my user control that notifes the parent page when the selected item changes in one of the list boxes so I can update the contents of the other list box.
I understand that I have to recreate the user control on every postback in order for it to function correctly but I'm not sure exactly how I should be doing it. I've shown below what I have currently - whilst it works the problem is that on postback I'm always creating the user control with all its default properties and then updating the properties that need to change(?). For example, when the choice in theparent list box changes the datasource of the list box is set twice (once in AddControl and then again in OnParentChanged)? As the contents of the list boxes originate in a database it means I'm making unnecessary calls to the database (unless I do some something like store each unique set of data in the ViewState).
I'd be very grateful if someone could review how I've done things and illustrate how perhaps I should be doing things. I'm not sure if the way I've done this is considered the 'correct' way. For example there may be a better way of doing things would avoid setting the properties twice? I'm a bit unsure of the way I've set the datasource properties of the list boxes and bound them. I wished to set the datasource from the parent page because I might have a second user control on my page that may also use the same datasource and I could reuse it (as opposed to each control making its own call to the database) so I'd like to keep this feature if possible.It would be great if posting code in reply that you use my example as a guide so I know what you're referring to.Here's the code for my user control:
[Code]....
[Code]....
Here's the code for my containing page:
[Code]....
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Mar 19, 2010
I have a webpart that loads in a user control programmatically. Although the webpart has personalization properties that I can use and pass to the user control, I haven't found a way for the user control to be able to update the outer webpart's properties -- the user control knows nothing of its parent webpart except what it is given. When I try to use the [Personalizable] attribute on a property inside the user control, it doesn't work; it doesn't save anything to the personalization database. In a nutshell, I need the user control to be able to personalize its properties (e.g. for a date picker within the user control where the date has to be remembered between sessions) or to somehow be able to update its parent webpart's properties.
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