C# :: Which Of These Is The Better Architecture/design Approach
Nov 12, 2010
To write a effecient Active Directory library to ease the work of technicals who are responsible to create access models into the domain controller's Active Directory. This library must allow the following:Basic operations: Add, Modify, Delete, List entries;An entry may either be an organizational unit, group or user (no further need required as of now);I thought about having a class which would represent the domain with which we want to work with.
public class Domain {
public Domain(string root) {
Root = root;
[code].....
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Nov 6, 2009
I was wondering does anyone know where i can find some good books and or articles covering the architecture and design of OOP applications. Also I need a book that explains how to structure an application as it relates to the data tier, business logic tier, and the front end.
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Nov 6, 2011
There exists a database that holds information on each planet in the solar system. The database has multiple tables.The program intends to access this data to display it to the user in a variety of manners. The program does not intend to manipulate the data at its source, though calculations on two fields may be performed to determine certain display characteristics.What is the optimal method for accessing the data?My initial approach, (read: gut feeling, no research) was to take each related row of data from the database and create an object of a custom class based on the data. So you might wind up with:[code]Then use these objects to perform whatever actions the program needed to. I ran into a lot of problems trying to implement this, so that I believe my design approach is fundamentally flawed.
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May 18, 2012
I was wondering if I could elicit some tips on how to procede with an interface design approach.That is. What is a good way to go about establishing a "work area" where one can have multiple "floating forms" in this area.Can you have a form which occupies the entire windows desk top and the other forms "float" in this space? the "floating" forms would need to interact with each other where pressing buttons etc on them would affect other forms on the "workspace") Or what would be a good way to start accomplishing that? Or is there a better way to get the same effect?
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Jun 3, 2009
In the first comment (by J.W.) to this question: Using ObjectDataSource and DataObjectTypeName, How Do You Handle Delete Methods With Just An Id Parameter?, it is said that using ObjectDataSource is a bad design. What is considered good design for well-architected ASP.NET applications?
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Aug 10, 2010
We have a small visual basic 6.0 application with an Access DB that we would like to migrate to modern code and architecture. I am not technical, but I am believe this would be something like a .net framework with a SQL Server DB.What I am wondering about, is there any way to covert this code to a modern language/architecture? If so, what is the easist modern language to migrate to?
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Dec 25, 2009
what is a disconnected architecture in dot net?Why are the dataSets a disconnected architectures in dot net?
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Nov 1, 2009
When trying to determine the Architecture of an OS, I ran across IntPtr.From reading the documentation, I saw this: Quote:The IntPtr type is designed to be an integer whose size is platform-specific. That is, an instance of this type is expected to be 32-bits on 32-bit hardware and operating systems, and 64-bits on 64-bit hardware and operating systems.
Since the size of IntPtr is intended to be the size of the architecture, would it be feasible to test the size and determine the OS by that? Or is there a better way?
I was thinking there might also be a way via WMI, but I don't want to use that for compatibility reason.
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Oct 4, 2007
Is there a way to programatically determine if the OS Architecture is 32-bit or 64 -bit?
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Nov 26, 2010
I have created my webpage in asp.net in 1024*768 resolution, my problem was that when i change my monitor resolution then the controls in my webpage will be displayed in unmanaged manner .
How to arrange items in my webpage which support multiple resolution ...
Whatever the resolution of my monitor the controls in my webpage will display as it is as managed in 1024*768 reolution !
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Nov 5, 2009
I need to write an app that that will iterate over our database, and perform various anaylsis on each record. In order to do this (partially for the learning exercise in creating plugin support) I want to use a Plugin model.
Currently, I have a simple Interface in my main app, which plugins can Implement. My app then loads all DLL's in a folder looking for ones implementing the Interface.
As you can see in the pseudo-code below, I have to keep performing a loop through all loaded plugins calling the process methods.
Sub ProcessData()
For Each Record In MyDataSet
For Each Plugin In MyPluginCollection
[Code].....
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Apr 14, 2010
I am beginner in programming and developed an application of mine. Although, I am finished with the coding part, but I have to present my software architecture diagram. I am not a software engineer and so familiar with basics of software engineering, layering etc.I have used 1) .NET GDI Graphics in my application, 2) Text to Speech, 3) RichTextBox which retireives pictures etc. How do I proceed with the architecture diagram now?
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Aug 12, 2009
I am working on a new domain model for an application that will have order processing for items built in (well, too keep it simple for this question anyway). I have a class "VendorItem" that represents items that can be ordered. Originally the "Order" class was going to have a list of VendorItems associated with it, but I have come across problems with it so far.
Let's say that the system has been creating orders for some time just fine. One day a user comes along and decides that a vendoritem has changed price or some other detail like packaging size. I wouldn't want the previous orders to be affected by such change. At first wash I was going to make a "OrderLine" class that is basically a copy of the "VendorItem" class, but that just feels (smells?) wrong in the OO sense. Is there a better way to refactor this so I don't have copies of classes and information in the domain model?
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May 23, 2011
I have a large application that has always existed all in a single .NET project up until recently (200,000+ LOC). I'm finally getting to the point where I can fix this. I just started using the Entity Framework (4.1 using code first) and I believe this is a good time to start seperating my logic.
What I did is I separated my application into three subprojects:UI - Windows forms project Business - The POCO classes Data - Legacy data access code AND the DBContext class to connect my POCO classes to the database. I also have a Windows service project and will soon have a WCF project, but those concern me less.
The problem is that in this plan, the data layer depends on the business layer and vice versa causing a circular reference error. There is no way around this.So, my idea is to move my POCO classes into the data layer removing all business logic first (just keeping the database fields, basically). Then, I will inherit from those classes in the business layer adding back all the business rules. Then my data access layer will not rely on any other project, the business layer will rely just on the data access layer, and the interface layer will rely on both for now but eventually only on the business layer.
Does anyone see any problems with this, or a better way of doing things given my current circumstances?
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Jun 6, 2011
Explain Singleton architecture of Remoting.
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Jul 20, 2011
I need help in understanding this architecture. The person who wrote it is long gone and I'm stuck to figure it out. We are creating an object in some code from some random workflow in the web application (unimportant for my question). The object is being instantiated from a class found in a Designer.vb file. I couldn't initially see the file until I clicked the "show all files" in Solution Explorer in Visual Studio. There are 3 files linked together.. a *.xsd file, a *.Designer.vb file and a *.xsx file. The *.Designer.vb file looks to be auto-generated.
Goal:Get dbo.note.text from the dbo.note table column and place it in the dbo.exportnote.text column. I just don't understand how it's connecting to the database and getting the data from the dbo.note.text field. I want to make the query more specific (possibly put a where clause on it). But really I just want to understand how it's communicating with the database. Most of the code uses stored procedures. So I'm confused on the architecture. What would be really cool is if you can explain how this code was autogenerated. It appears that the *.xsd file is an XML file when I "View in Browser" from the Solution Explorer.Code to instantiate object of designer class:
[code]...
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Oct 21, 2009
Using VB.NET 2008 I want to know what is 3 Tier Architecture for windows application? How to make a code for Inserting, Deleting, Updating in a database using 3 tier architecture.
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Jun 27, 2011
I seem to have reached a limit on the size of the form. I cannot make the form longer and I need to add more fields. Is there a limit on how many fields can be included in a form?
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Oct 23, 2009
I am in process of designing an architecture for an application. Following is the high level requirement.
1. The basic requirement is to convert a flat file into XML
2. The input flat file can have various formats, the delimiters, the data positions may vary.
3. The output XML format is predefined. There is a specification defined in a word format, which I think I need to define it as an XSL or XSD.
I am planning to follow some design pattern. Not decided yet. The architecture should be flexible to extend the input file formats and accommodate any changes in output specification.
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Feb 8, 2011
Building a large application using 3 tier architecture in vb.net. Question: I am a vb.net developer. I have developed small and medium size application with 2 tier architecture. Now I am going to develop a large application. I have decided to develop that application using 3 tier architecture. So I studied about 3 tier. Now I know how what is 3 tier and how to develop a simple application. And also I studied about .Net Remoting and Web services. In my project, 7 modules are available. Each module has 3 layers. How can I manage in a Single Solution?
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Jun 22, 2010
how to create a stable plugin architecture. Stable because I plan on opening up plugin creation to the public but I dont want a sloppy coded plugin to take down my whole application.
So I thought of using an AppDomain per plugin and I did a little seaching. But it seems that even using a temp AppDomain to load plugins and then unloading it once all assemblies have been inspected raises complexity allot and I was planing on using an AppDomain per plugin.
I feel the gained stability (if there is any at all) may be raising the complexity so much the app will never be done..
Is there another way to both create a stable application and at the same time making it extensible?
I cases where the host calls a defined function via say IPluginInterface I guess I can pack a whole lot of try catch blocks around that call but what if a plugin insisted of a timed routine that would run continously without being invoked from the host other that a starting call to StartPluginService or something like that?
If I include a plugin like that in the default AppDomain and it blows up I sure will blow my own foot off right?
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Jul 15, 2011
I'm creating a rather large and complex application and was wondering if any of you had any recommendations for good books on application and project architecture. Multi-user - database - heavy interaction with windows api for shell extensions.Not the standard maintenance or reporting app I usually write!
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May 25, 2011
I searched codeplex and google. I have found so many such as tustena but unfortunately they are not domain driven based and in these solutions I could not find a good modelling documents or references. i am a newbie in CRM but I am sensetive to design it with solid object-oriented fundamentals. Any reference or open source solution especifically for CRM design and implementaion in .NET? Cheers
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Apr 17, 2012
Here's my current set-up:
Public Interface IDatabase
Function CreateParameter(name as String, dbType as <dbTypeEnumeration>)
End Interface
[Code]....
The problem here is what exactly is dbTypeEnumeration. In the example above, it's simply a placeholder to what my problem is. Since we use both Oracle and SQL Server databases, the DbTypes are different depending on the database being used. For Oracle, the OracleClient object has its own OracleDbType enumeration with types. SQL Server also has its own enumeration.
My question is: is it possible to show those database-specific enumerations depending on which repository is injected into the DatabaseService constructor? If not, what's the best way to go about this? I want to separate the two databases, share logic, and allow for future development, ala the interface as a code contract for that development.
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May 9, 2011
I do have some classes that implement their own serialization/deserialization but I'm doing all of these without implementing system.runtime.serialization.ISerializable. so my question is what exactly is the benefit of using system.runtime.serialization.ISerializable ? in what example situation will we need to implement system.runtime.serialization.ISerializable?
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Feb 15, 2012
what's a Class, and Object, a Method, a property and thins like that, but I have this doubt:Let's supppose I have a class "Laundry" this class has (just for this example) 3 propierties:
1.- laundryID
2.- Name
3.- Washers
Id and Name are "primitive" types or simple types (integer and string), but Washers, represent a list of object of type "Washer", that has 3 properties:
1.- washerID
2.- laundryID
3.- capacity
4.- brand
All of them (for this example) simple/primitives types (integer,string,string).So this my dilemma, it is correct to have a constructor like this (VB .net)
public sub new(ByVal laundryID as integer)
'' Here I'll query for the data of the Laundry on DB
'' After that I will query for every washer that belongs to this laundry
[code]....
And inside of that constructor query for all the washers that belongs to the laundry with id=laundryID parameter, and create objects of type "Washer" and add them to the list of Laundry ?I'm not sure If I explain myself, any comment I'll be really grateful, in less words, what's the correct approach (or good practices) to work with class/objects that has properties which are complex (other class/objects).I usually work with ADO.net probably ADO/LINQ/Entity solve this thins in an transparent way, but if they do it I don't really know it.
Note: I'm familiar with VB.net, C#, PHP, so if you prefer explain/help me using examples with its syntax, it's ok
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Mar 3, 2011
This question is the follow-up of a a desire to architect a simple spreadsheet API while keeping it user-friendly to those who know Excel well.
To sum it up, this question is related to these below two:
1. How to implement column self-naming from its index?;
2. How to make this custom worksheet initialization faster?.
[Code]...
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Dec 15, 2011
OK, I have this loop I want to perform which involves the serial port. Not to get too specific I'm actually sending data to an external device within a loop The loop involves a Start number, increments by a Step and ends when it gets to Stop This repeats until I click a STOP button.
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Jan 25, 2010
I'm experimenting with a plugin architecture for my company's internal business system. I have managed to read all .DLLs in a Plugin folder which implement a specific interface. What I am trying to figure out is the best method of communication between the "host" MDI parent application and forms that will be in the .DLLs which I intend to make MDI children.
Currently, I am returning just ToolStripMenuItem objects from the .DLLs to add to the MDI Parent. I've also tested that events wired in the .DLLs to the ToolStripMenuItems do propagate to the code in the .DLLs. I've also managed to return a Form object via the interface and open that form, as the Plugin folder is being "scanned".
However, I am not clear how I would make these forms MDI children. Also, any other forms living in the .DLLs will also have to be MDI children. I created a VS 2008 Addin project just to see what's going on, and it seems that the Addin accepts an Application object on which it adds to the ToolStripMenuItems and does other operations. The code to build the menu inside the .DLL. This is opposite of what I have done so far, where the MDI requests a ToolStripMenuItem from each .DLL and adds the returned object to its own menu.
Would designing my plugin architecture to accept an application object in the same manner the only way I could get forms to open as an MDI child? Am I asking for other, currently unknown to me, headaches by NOT passing in the application object to the .DLL?
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Jul 28, 2009
I understand that there are several ways of Inserting, Updating and Deleting records in a database such as DataAdapters, DataSets, TableAdapters, SqlCommandBuilders, Parameterized SqlCommands, StoredProcedures, etc, etc,etc. According to David Sceppa Sprocs are the most preferred. Ok, I go with him on this one (who am I to challenge him anyway?).
My question is, apart from Sprocs, which of these options is the BEST for a large commercial database application and why, taking performance into account? What are the benefits and drawbacks of each option?
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