Architecture :: Two Different Base Classes Sharing Some Of The Same Code?
Mar 21, 2011
I got loads of website, that share one of two baseclasses. I need the two baseclasses to be able to share part of the same code. I dont want to have to duplicate the shared code per baseclass.
so.. I got a page.aspx that inherits the baseclass and that inhertis 'sub' baseclass that inherits the web.ui.page class. So far so good :-)
In my baseclass I got a Public (at the top of the class not in any method- not sure of the proper term) Varable that is constructed from a structure in the BO class.
it Public PageDetails AS CoreDomainSetupBO.GetStartUpDetails = {database method}
I need the pagedetails to be available in the sub baseclass but it cant be defined there as the page details value is defined differently in the different base classes.
I hope that makes sense, I need to sub base class to be able to use a property that is defined at baseclass level.
View 3 Replies
Similar Messages:
Dec 3, 2010
I am looking for general direction on the best practice here. I have a class that I want to share between two different forms in two projects that are associated. The two forms are in seperate projects but both projects load together as I have added the second project to the first. I also have a class that I want to share between these two projects which will cause me to add another project to this solution with will mean I will have three projects in my solution. My question is how do I best share this class?
I believe the only way to do this is to add the class in the reference in both of the form projects?... Is this correct ? I'd really like to just reference the class and inherit it in the source code without adding it as a reference but I am feeling that I can't do that. I am obviously pressed for time and working on other projects and a I am a experienced coder with only about 1 year of C# experience...
View 4 Replies
Mar 24, 2011
My MVC ASP.NET web application is split up like this:
Web Application Layer Views
[Code]....
Now, I have a view in the database called "EquipmentWithCableDetails", which contains additional useful information with the equipment details - so I create a class to model that view (in order to be able to read from it). In the code I have that works with that new class, I want to display the EquipmentDescription - but that property only exists on the Equipment class.
View 2 Replies
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]....
View 4 Replies
Dec 15, 2010
I am trying to setup a base product class that will be inherited by a more specific class later. Here is my scenario. I have a table called ProductBase, it contains three fields, BaseProductId(PK), CatalogNum, and ListPrice. Every product in the system will share these attributes. Next, I have a table called Shirt, with three fields BaseProductId(PK, FK), Color, and Size.
I then setup an Entity Data Model that pulled in both of these tables, and created to classes BaseProduct and Shirt.
So, in my model, I want to do something like this:
[Code]....
The problem I have with this approach, is that I cannot force the properties for the Shirt. What if I make a change to the BaseProduct? What happens when I have multiple product types, will I have to repeat this code?
View 1 Replies
Aug 19, 2010
I have a BasePage class that all of my content pages inherit from. In my BasePage, I have many Import Statements. It seems as though they carry over into the derived class as one would expect. However, if you were to try and access code in the client aspx design page, as you would in the code-behind, you run into problems.
For instance, in my BasePage i have a Public Enum named ThemedSites. It's just an enumerator that lists the 5 different themes my site could be skinned as. I, at times, need to do different things in code, and in design, depending on what theme I'm currently in. I have a Public Property named CurrentSite (might have been more appropriate to say CurrentTheme, but that's besides the point). CurrentSite's return type is ThemedSites. So in code, one would say something like:
[Code]....
This works great in any page that inherits the BasePage class. This falters when that very same logic is used in the design page like:
[Code]....
Now, it works if you fully qualify both sides of the condition, but that's not my question. My question is: why isn't the Imported NameSpace in the BasePage recognized in the client-side server tag, as one would think it would be, according to how it IS recognized in the server-side code-behind?
View 3 Replies
Nov 19, 2010
I am having a problem mapping a many-to-one relationship from an abstract base class mapping to a concrete union-subclass. Example:
public abstract class Entity
{
public virtual Guid ID {get; set;}
public virtual string Name {get;set;}
public virtual User OwnerUser {get; set;}
}
public class User : Entity
{
public virtual string UserName {get; set;}
}
I have a base abstract class for all of my database objects. I am mapping these classes with the Entity class as the abstract mapping class and the User as a union-subclass. When creating the configuration object, no errors are thrown and the Schema exports just fine. However, the field to the OwnerUser just won't show up in the database for all of the concrete classes. Here is an example of how the mapping looks
<class entity-name="Entity" name="Entity" abstract="true">
<id name="ID" type="guid">
<generator class="guid.comb"/>
</id>
<property name="Name" />
<many-to-one name="OwnerUser" column="ID" entity-name="User" />........
I am also using an Oracle XE instance as the database backend. If this isn't enough information to properly answer the question, let me know and I will add what I can.
View 1 Replies
May 10, 2010
I am Confused about the TextReader Class,that how it fetched data ?And from where it fetches data?
Is this the base class of all other Reader type classes?
View 5 Replies
Feb 17, 2010
I have to different .Net applications running simultaneously. Assume both are windows / web applications.When I update some data in application A
correspondingly data in application B must be updated.
View 3 Replies
Mar 5, 2010
Do we have to do something special to have ASP.NET partial classes aware of controls that are declared in our user control's base classes? The partial classes keep generating declarations for controls in the base class which mean the controls in the base class get hidden and are null.
View 1 Replies
Mar 9, 2011
I'm implementing n-tier structure in the current app I'm working on. Because DataBinding a list of my Objects to a Repeater was far too slow I need to databind a DataTable to the Repeater. Should I still DataBind to a Function (that returns a DataTable) in the BLL that calls a Function in the DAL that returns a DataTable?
View 2 Replies
Nov 29, 2010
1. Desktop based application - Developed in VB2. Web based application - Developed in Asp.Net 2.0 and C#The above two uses same database in SQLI do have proper class library/business logic in desktop based application in VB. Now I need to use the same library in ASP.net web based application so that I can change at one place and both the versions will work fine with replacement of one dll.hat is the best to make classes in VB, VB.NET OR C# so that I can use at both end easily.1. If I write Activex dll in vb, the internet articles tells about low performance because of Interop services.
View 2 Replies
May 12, 2010
I want to know Can an assembly contains more then one classes?
View 1 Replies
Nov 24, 2010
I have a third party dll and i need to add some more functionalities (methods, constants etc..) so create a wrapper class. I have no idea about wrapper classes. what is the purpose of this and how to create in .NET for this 3rd party dll.
View 6 Replies
Aug 10, 2010
I am searching for what are the standard best practice (for OOP) used to design classes for develop asp.net application? I am aware of most of the OOP concepts but confused with how to map object/classes.
Let's take example of Adventure works - 2005 database provided by Microsoft; it has five schemas Sales, Purchase, Person, Production, HR and DBO.
Should we consider Schemas as Namespace in Classes?
Now, Person schema has 5 tables, should we design classes based on tables?
i.e. Person schema has Address, AddressType, Contact, ContactType, CountryRegion & StateProvince tables. What are the classes we can consider?
What are the basic criteria to decide objects? What to do and how to design classes for tables like Purchase order detail, Product cost history, Product inventory, Product Category etc.
View 3 Replies
Feb 22, 2010
I am updating a project I wrote some time ago. At the time my preference was for DataSets and DataSetTableAdapters, but I've now moved on to use Linq to SQL DataClasses. I would like to convert the project to Linq to SQL, but I am tight on time and it's a big job. My question is, is there any reasons I can't develop new modules using Linq to SQL DataClasses along side DataSets and convert the DataSets overtime?
Apart from the obvious confusion it will cause, are there any technical problems I should be aware of i.e. will there be any performance problems using the two methods?
View 4 Replies
Nov 3, 2010
Can we use membership class in 3 tier architecture? Actually i want to use ASP.NEt's login control and membership for authentication. Can it will be possible in 3 tier using membership.
View 5 Replies
Sep 24, 2010
I was wondering if you should write code so that external classes and functions of that external class can access the webform controls in the main class???
Or should you only use the external class to process some data, return that data back to the main class (that instantiated that external class object) and then have an internal function in the main class to deliver the data to the control? (back to the screen)
View 2 Replies
Dec 23, 2010
where to create the BLL and DAL and all classes in it can we place them in the App_code folder as it ll convert them into DLL Files or do we have to create a new class library project for each...
View 1 Replies
Feb 1, 2011
I am using the ADO.NET Entity Framework for loading data from the database. The classes are directly mapped to database tables in the database. The problem is that these classes are not optimal for binding to the UI elements. As a result of this I have some custom entities which are populated at the service layer and returned. It is these custom entities (classes) to which I bind the UI elements. My questions on this are1. Is populating these entities at the service layer the most appropriate way to do this. I personally do not think so because if we introduce some additional UI elements which need different entities then I have to modify the service layer again.2. What is the best approach/pattern to get this done.
View 2 Replies
Jan 11, 2010
So I started working on my first asp.net application that involves logging in and databases, and soon after i started messing around with a static class. I "discovered" that if you make a variable static, all sessions share that variable (I for some reason was originally assuming that each session had its own copy of that "static" class). Anyway, after discovering this I thought to myself "how could this possibly be useful to me" and thought that itmight be a good idea to make a single static database connection for all of the sessions, rather than storing that as a session variable for each session. Does anybody know what would be the pros and cons of this approach?
View 5 Replies
Jul 16, 2010
Database backed entity classes and matching the underlying types for the ID field. removed.
View 1 Replies
Apr 29, 2010
I have some menu html code that I want to share among several pages, so that if I change a menu item it gets updated across all pages.
Is this possible in VWB? I'm using the 2010 Express version.
View 1 Replies
Mar 8, 2010
I have built a website and now the customer wants to split it between three different domains. What is the best way to do this? This is what I have so far.
c:/website1/ points to www.website1.com
c:/website1/vd1/ points to www.website2.com
c:/website1/vd2/ points to www.website3.com
The webhost I'm working with has done it the following way, but now I'm getting a bunch of errors that seems like it's not seeing the App_code folder. Do I need to make a lot of changes? How does this affect the location references?
View 2 Replies
Dec 1, 2010
I see on the bottom of blog pages a sharing buttons (Twitter and Facebook), where if clicked the link behind (which is normally the blog page url) the fshare button takes the clicker to the blog site facebook page respectively.
How does one do this in asp.net 2 , does one one use the <%# %> in the url part of these share buttons, are there any examples of how this is done?
View 8 Replies
