Registering Composite Classes In Unity?
Nov 25, 2010
in my implementation, I have an interface as: ICachingManager. I've got now one implementation. I also created a manager class as:
public class CachingManager
{
#region Members
private ICachingManager service;
[Code]....
In case I had one implementation, then I can easily register the CachingManager class with Unity, automatically Unity resolves and injects the ICachingManager.
In case I had more than one implementation using named types, then how can I can make use of Unity? Do I need to make use of an Abstract Factory to decide on which named type to initialize?
Is it a good idea to make use of such a composite class or use directly implementations of the interface with Abstract Factory?
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Dec 13, 2010
I am learning custom controls and just finished my first one. The problem is that I am struggling to register it in my web config and have the compiler recognize it. Right now this results in a YSOD about the reference to the control.
note: exact error - Error Unknown server tag 'cc:LblTextBox'.
Web Config
//..
//..
<pages>
<controls>
<add tagPrefix="cc" namespace="Controls.Server"/>
</controls>
</pages>
</system.web>
The control code-behind
namespace Controls.Server
{
public class LblTextBox : CompositeControl
{
//...
}
}
mark-up
<%@ Page Language="C#" AutoEventWireup="true" CodeFile="ControlsMain.aspx.cs" Inherits="Pages_ControlsMain" Trace="true" %>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head runat="server">
<title>Controls Area</title>
</head>
<body>
<form id="form1" runat="server">
<div>
First attempt at a simple composite control <br />
<cc:LblTextBox ID="ccLblTbHybrid" runat="server" LabelText="Name:" />
</div>
</form>
</body>
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Dec 14, 2010
Does ADO.Net Entity Framework 3.5 support Composite Foreign key/Composite primary key?
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Sep 17, 2010
what is unity of asp.net framework lib. how to use it.
what is the benifit of using this
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Jan 11, 2010
I am new to LINQ. when we drag tables we get a dbml file and designer file.
For example DataClasses1.dbml and DataClasses1.designer.cs.
Once we have them then we can start using our LINQ Queries.
In my company project I do not see this designer files and instead there are .tt files which were used as templates to greate ABC.generated.cs files. Is this same as designer class?
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May 17, 2010
I am following the Nerd Dinner tutorial as I'm learning ASP.NET MVC, and I am currently on Step 3: Building the Model. One part of this section discusses how to integrate validation and business rule logic with the model classes. All this makes perfect sense. However, in the case of this source code, the author only validates one class: Dinner.
What I am wondering is, say I have multiple classes that need validation (Dinner, Guest, etc). It doesn't seem smart to me to repeatedly write these two methods in the partial class:
[code]....
This doesn't "feel" right, but I wanted to check with SO to get opinions of individuals smarter than me on this. I also tested it out, and it seems that the partial keyword on the OnValidate method is causing problems (understandably so). This doesn't seem possible to fix (but I could very well be wrong).
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Mar 1, 2011
After about 30 Minutes the whole Unity Container is away, that means that all my Dependencies rises null exceptions, because they can't get resolved.
Global.asax:
[Code]....
[Code]....
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Aug 11, 2010
I don't know if this has to do with how FindControl works or how scope works. But my base class is having a hard time seeing the fields of child classes. Currently I'm planning have the derived class set a property in the base class, but there are a lot of derived classes, so that isn't a very attractive solution.
[code]....
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Oct 30, 2010
I'm using Microsoft Unity. I have an interface ICustomerService and its implementation CustomerService. I can register them for the Unity container using the following code:
container.RegisterType<ICustomerService, CustomerService>(new TransientLifetimeManager());
If CustomerService has a certain parameter in its constructor (e.g. ISomeService1), I use the following code (I need to specify SomeService1):
container.RegisterType<ICustomerService, CustomerService>(new TransientLifetimeManager(), new InjectionConstructor(new SomeService1()));
No problems here. The problem appears when CustomerService class has two parameters (not one param as in the previous example) in its constructor (e.g. ISomeService1 and ISomeService2). It works fine when I'm using the following code: container.RegisterType(new TransientLifetimeManager(), new InjectionConstructor(new SomeService1(), new SomeService2()));The problem is that I do not want specify SomeService2() for the second parameter. I want to specify only first parameter - SomeService1(). But I get the error that I need to specify none or both of parameters. How can I specify only first parameter of constructor?
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Mar 7, 2011
I am using unity, entity framework 4 with POCO classes, repository pattern for DAL and services for Business Logic control.I also want to use Unit of Work so I can package together CRUD operations which I perform on different services and then commit them all together.My question is what would be the proper way to inject the Unit Of Work mechanism into my application using Microsoft Unity?I understand that I can put the IUnitOfWork together with the repository on the constructor of the proper service and then if Unity mapping is specified it would auto initiate the proper instances, but this way I do not pass the global unit of work but rather create a new instance on each level, which can't be a smart way to do it (actually the repository is initiated even before the service).
private IUnitOfWork _uow;
/// <summary>
/// Returns the active object context
/// </summary>
private ObjectContext ObjectContext
[code]...
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Jan 19, 2011
I would like to implement IOC and DI and have been looking at the various open source IOC's such as Unity, StructureMap, Ninject, and Castle Windsor, but I noticed that some of them are based on .Net 3.5 framework. Does this matter? Which IOC's would be most suitable or easily integrates for use in an MVC3, EF4, and .NET 4 framework application? Which would be the simplest to implement?
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Mar 24, 2010
Can I use VB and C# classes together in the same asp.net 3.5 project?
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Mar 8, 2010
Im faced with an impending upgrade to an ASP.NET site and I am thinking of introducing DI using Unity. I have researched the ASP.NET DI side of things and have 2 options (Global.asax or IHttpModule). Im happy to use either. As always, there is a legacy object model in place that I would like to upgrade/change. I would like to go down the route of Constructor injection (passing in the DAO) however, each object has a mix of static and instance methods that both currently call into the DB using SqlCommand objects themselves. I want this removed to provide DB independence, therefore can anyone suggest the best way to do the DI in this case? Im open to drastic changes if they are needed.
public class ExampleClass
{
public ExampleClass(int test)
{
TestProperty = test;
}
public int TestProperty {get; set;}
public int Save()
{
// Call DB and Save
[Code]....
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Jan 31, 2011
I have an ASP.NET web forms site using Master Pages. It is using Unity as my IoC container. I have created an HTTP Module to build up the container using a couple of tutorials i found online. I need the dependency injection to work for User Controls and the only way i was able to get this to work was to hook into the Pages PreInit event as can be seen from the code below.
[code]....
I also have autoeventwireup set to true on the pages and master page. Can anyone shed any light on why the events are not firing? Is my Unity http module causing this to happen by dropping the event wiring? I can get this to work no problem in a basic example with no IoC involved.
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Apr 28, 2010
I have the following generic lifetime manager
[code]...
causes the following error
Cannot create an instance of UI.Common.Unity.RequestLifetimeManager`1[T] because Type.ContainsGenericParameters is true.How do you reference generic lifetime managers?
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Dec 15, 2010
I'm curious as to what people consider better practice, between duplicating model structure in the view model and using a mapping tool to move data between the two, or aggregate the model inside the view model, i.e. have a property on the view model class that is a reference to the actual model. Which is considered a better approach in general?
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Sep 7, 2010
Does anyone have any good examples of how to make Unity 1.2 or 2.0 work with ASP.NET WebForms?
I thought I had this figured out, but evidently I'm missing something. Now I'm getting the error; "No parameterless constructor defined for this object". I remember getting this error a couple years ago, I and just don't remember what I did.
Obviously Unity isn't working as it should because somewhere along the way I've forgotten something.
Here's some of my code:
Global.asax
[code]....
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Jan 28, 2011
I have a page without codebehind where a control being registered via the following declaration:
<%@ Register TagPrefix="IBS" TagName="Schedule" Src="Schedule.ascx" %>
Then there is the following code:
[Code]....
And the page is working without any problems. I am trying to move the code to codebehind and as soon as I do it I get an error "Type 'Schedule_ascx' is not defined". What could be the problem?
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Sep 14, 2010
I am attempting to register my user controls within the webconfig file because I am receiving the Element does not exist error, but I am receiving the following error when I try to register them in webconfig:
Invalid or missing attributes found in the tagPrefix entry. For user control, you must also specify 'tagName' and 'src'. For custom control, you must also specify 'namespace', and optionally 'assembly'
The following is the code within the webconfig file:
<pages>
<controls>
<add tagPrefix="asp" namespace="System.Web.UI" assembly="System.Web.Extensions, Version=3.5.0.0, Culture=neutral, [code]....
The pages that are having this issue are also referencing MasterPages if that matters at all:
<%@ Page Language="C#" AutoEventWireup="true" MasterPageFile="~/programs/MasterProgram.master" CodeBehind="~/programs/wim2011/default.aspx" Inherits="IPAM.Website.programs.wim2011._default" %>
and they are each within their own folders.
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May 27, 2010
I have a textbox in a modalpopup, whose onBlur is suppose to use a function defined as:
<script type="text/javascript">
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Oct 28, 2011
I am working on an IM system and have a question regarding the checked state of check boxes in a gridview.
The Problem is, weather a check box is checked or not, it always returns false on the check property and therefore skips over any code that is to be executed. When you edit the gridview template and set checked property to true then it registers all boxes as checked. Checking or unchecking a box has no relevance.
I've put an item template in columns area of the gridview to make the check boxes.
Here is the code for the delete button...
VBCode Code:
Protected Sub delentryBtn_Click(ByVal sender As Object, ByVal e As System.EventArgs) Handles delentryBtn.Click
Dim atleastonerowdeleted As Boolean = False
For Each row As GridViewRow In showmail.Rows
Dim cb As CheckBox = row.FindControl("msgselect")
If cb IsNot Nothing AndAlso cb.Checked Then
[Code] ....
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Feb 12, 2010
I'm getting an ConfigurationErrorsException when trying to load a custom section from my web.config.
I'm trying to register a custom section in web.config to load it later using a "Section Class".
Suppose my section is orderService, and I register it in web.config as shown:
<configuration>
<configSections>
<sectionGroup name="system.web.extensions" type="System.Web.Configuration.SystemWebExtensionsSectionGroup, System.Web.Extensions, Version=3.5.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35">
</sectionGroup>
<section name="orderService" type="orderService"/>
</configSections>
<orderService available="true" pollTimeout="00:01:00" location="abc">
</orderService>
<appSettings></appSettings>
<connectionStrings/>
Then I try to load it with:
Configuration config = WebConfigurationManager.OpenWebConfiguration(Request.ApplicationPath);
OrderService custSection = OrderService)config.GetSection("orderService"); <== The exception is thrown here (OrderService is a class that inherits from the class ConfigurationSection, and that defines a property for each orderService property, in this case: available, pollTimeout and location)
The exception says: An error occurred creating the configuration section handler for orderService: Could not load type 'orderService'. (my web.config path line 23) Does anybody know what am I doing wrong here? (I got it from the book APress: Pro ASP.NET 3.5 in C#)
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Mar 31, 2010
I'm having some difficulties registering a custom control from a class library in my webapplication's web.config file (or directly on a single page at all). These are the steps I've taken thus far:
1. I have a class library that generates a dll called "Core" and my webapplication has a reference to this "Core" assembly.
2. The Core class library contains a class called AjaxTable which is of namespace "Core.Presentation.DataViews".
3. AjaxTable extends System.Web.UI.Control.
4. I have added the following to my webapplication's web.config file.
<add assembly="Core" namespace="Core.Presentation.DataViews" tagPrefix="core" />
5. Since the previous didn't appear to work I tried the following variant:
<add assembly="Core" namespace="Core.Presentation.DataViews.AjaxTable" tagPrefix="core" />
It seems like I must be doing something small wrong or missing a step. Can anybody give me any advice? Thank you all in advance.
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Dec 7, 2010
I am trying to let a user fill in profile options when they are registering. I am using the providers that come with asp.net by default.
Example: User fills in this registration form:
Username
Email
Age <- This is what I have tried to add in.
Password
Confirm Password
I got the age to show up by doing the following.
1) Adding the following code to Web.config
<properties>
<add name="Word" type="String" />
<add name="Age" type="Int32" defaultValue="0" />
</properties>
2) Adding the following code to my register.aspx view
<div class="editor-label">
<%: Html.LabelFor(m => Profile.Age) %>
</div>
<div class="editor-field">
<%: Html.TextBoxFor(m => Profile.Age)%>
<%: Html.ValidationMessageFor(m => Profile.Age)%>
</div>
I went to run it, I filled out the form and clicked register. I got this:
Timeout expired. The timeout period elapsed prior to completion of the operation or the server is not responding. and Line 127: _provider.CreateUser(userName, password, email, null, null, true, null, out status);
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Jul 8, 2010
This works fine without using a masterpage. What is the masterpage messing up here. Basically creating all dynamic controls. Linkbutton>tablecell>tablerow>table>panel>placeholder. The linkbutton id is not being set when building. The link button id is registered fine when not using the masterpage. Also using ajax.
masterpage.aspx
[Code]....
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