Access :: How To Create Data Access Layer Using Dataset.xsd File
Feb 3, 2010Iam facing the problem with creating the Data Access layer using Dataset.xsd file and How to access the data from the file.
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Can Get The Data Access Layer .cs File
Feb 2, 2010I want to get the .cs class file that we use when we work with the data base. and then I can just include it in all the files.
it should contain all the information like rundbquery, runstoredproc,runstoredprocwithparams....etc.
State Management :: Create Data Access Layer For Web Application?
Apr 21, 2010I'm attempting to create Data Access Layer for my web application. Currently, all datatables are stored in the session. When I am finished the DAL will populate and return datatables. Is it a good idea to store the returned datatables in the session?
Note: generally the number of rows in the datatable will be small < 2000.
Access :: Creating An Excel File From Dataset Or Access File?
Nov 21, 2010i have an asp.net application
c# code
i have adtabase in access and i craete adatset from it
i want to create excell file
Architecture :: Data Access Layer And Business Logic Layer?
Jun 24, 2010I am building a web site following the tutorials on asp.net. I am using dataset as data access lay, and writing classes to access the dataset. But the example is just basic ideas, how do I retrieve individual table column value in the business layer?For example, if I have a table called Product, I only want to find out what is the product name by product id. I did this in my ProductBLL:
public ProductBLL
{
public int GetProductName(string productId)
{
ProductDataSet.ProductDataTable prodData = Adapter.GetProductById(productId);
[code]...
Is there a better way, or am I doing this correctly? Can anybody give me a reference to a more complicated business logic model?
Architecture :: How To Pass The Data Between Data Access Layer And Business Acces Layer
Jun 3, 2010here i have in 3-tier architecture , how to pass the data between DAL and BAL. i am using grid view to edit the data,when ever i click on the edit button all the corresponding fields should come to textboxes. i tried for delete ,it works fine bt not working to EDIT.
View 7 RepliesADO.NET :: UpdateSong () In DAL - Create A Method Called Updatesong() In Data Access Layer?
Nov 16, 2010I have a table with columns songID, Album, Artist and title. I have created a method called Updatesong() in data access layer. The SQL qerry in UpdateSong() method is
UPDATE Music
SET Title = @Title, Album = @Album, Artist = @Artist
WHERE (Title = @Title)
In a web page I have called the UpdateSong metod on a button click as
protected void Button3_Click(object sender, EventArgs e)
{
int SongID = Convert.ToInt32(musicAdapter.UpdateSong(TextBox3.Text.ToString(), TextBox4.Text.ToString(),[code]...
Whatever I'm changing in the textbox are getting updated except title column. I dont no whats wrong in that. If I change the SQL querry in tableadapter as
UPDATE Music
SET Title = @Title, Album = @Album, Artist = @Artist
WHERE (SongID = @Original_SongID)
I get an error saying "No overload for method 'UpdateSong' takes '10' arguments".
Access :: Insert Data To Ms Access From Datagridview Using Dataset?
Oct 1, 2010give me sample code for insert data to MS ACCESS from grid view using dataset.
View 5 RepliesADO.NET :: Building Data Access Layer In 3.5
Aug 25, 2010In old style i used to return datasets to BOL (From DAL) and then to Website. but in 3.5 is there any new way to construct DAL. i heard about returning List<> is better than DataSet. I Got to build new DAL for my new project. if i should go for List <> aprroach can i use Linq to Sql technique or shall i go for execute dataset (using applicatio block libraries) and then fill data in List<> prior to return it back to BOL.
View 1 RepliesADO.NET :: Connectionstring In Data Access Layer?
Nov 1, 2010I am developing a web application in Visualt Studio 2008. I have a data access layer that is automatically generated using Visual Studio. After publising my site to IIS and tested it for several hours, two exceptions occured:
[Code]....
The connection string is stored in the data access layer in Properties.Settings and has not changed.Does anyone have a clue why these exceptions occur and how i can avoid them?
.net - Data Access Layer As A Web Service?
Aug 18, 2010I have been researching for a while and have actually created a prototype ASP.NET web service as a DAL for a few ASP.NET 2.0 web sites. Just would like to ask for some insight/advice from more experienced developers out there who had successfully rolled out DAL as a web service. What are the drawbacks/risks to deploying DAL as a web service? What is the best way to secure or authenticate consumption of this web service? WCF is out of the question, I'll be coding in VS 2005.
View 4 RepliesData Access Layer With Enterprise Library?
Jun 14, 2010 I've VS2008 and enterprise library 4.1 installed .I want to display few records in the categories table of my NorthWind in my presentation layer through data access layer with enterprise library. I've added references of the following dlls in my data access layer project( which is of type class library)
Microsoft.Practices.EnterpriseLibrary.Common
Microsoft.Practices.EnterpriseLibrary.Data
Microsoft.Practices.ObjectBuilder2
how to access data from the database using datareader , entity beans and rendering data on to presentation layer.
DataSource Controls :: Why Should Use A Data Access Layer (DAL)
May 10, 2010I'm now reading this article:[URL]But I don't understnad why this is better than just writing code, methods that connects to DB and get from stored procedore what I need.
Why is it better to use so much DataSets for all the tables and more.
C# - Developing A Data Access Layer Using ADO.Net And LINQ?
Sep 21, 2010I have a potential project where I would be working on developing the "Data Access Layer" of a reporting application using ADO.Net and LINQToSQL.
I have not specifically worked on a Data Access Layer project (middle tier), so I was wondering if anyone here could provide a sample / example / resource, where I can get an idea of what the project entails.
ADO.NET :: Retrieving An Image From SQL Into Data Access Layer?
Feb 28, 2011I'm trying to retrive images from SQL (2005) using ASP.NET 2008
At present I have a business object layer and a data access layer to get some data from the database. This works fine but now, i would like to also retrive an image along with the data.
part of my business object layer is shown below, how can i incorporate the image into this.
I have a DLL file which will take care of displaying the image in the web page once i have retrived it.
[Code]....
Access :: Edit - Update And Create New Data Into Access Database Using Data Detail View
Apr 8, 2010i am facing some problem in update, edit and even create new data into my access database using data detail view. i am using microsoft visual web developer 2008, i can do the same when sql server database were to tore the data. but when i try to do the same using access database, an application error. may i know whats going wrong? and how to solve this problem?
View 7 RepliesArchitecture :: Use STATIC Methods In Data Access Layer?
Feb 4, 2011I am developing a web application, which has Data Access Layer and this layer has only one class, in which all methods are static methods like static Insert, static Update, static Search. It has no properties. I am using these methods in my Bussiness Logic class for my users who are visiting my website.Now my question is : 1. Is it right to use static methods in this scenario ?2. What will happen if 10 users call Insert method at the same time ?
View 3 RepliesSQL Server :: Calling Methods From Data Access Layer?
Nov 15, 2010I have created a table adapter in DAL. I have created a gridview in the page and want to fill the gridview with a table data by calling a method. My table has 11 columns but i want to display only 2 columns of the table. My getSong() method has a query as Select title, category from Muisc. But it diaplyas all columns with no data except title and category and the autoincrement primary key column with negative values. The pic is given below. How can i solve it?
View 2 RepliesCreating Data Access Layer For Small Website?
Feb 10, 2011I am creating my application in asp.net 3.5. I have to make my Data Access layer, in which I am doing the traditional method of fetching/updating the data. Which is SqlConnection than SQLCommand, than SQLadapter. Will there be any other way I can create my DAL layer easily.
Specification.
My website is small. Approx 7-10 pages. Database has around 80 tables.
What I know:
Linq to SQL - I don't want to use it because I am not fully aware about the LINQ statement and I need to develop the application really fast. [3 days :-( ]. Also, there are 100% chances that the table structure will be altered in future. Enterprise Library: It will take too much time for me to integrate to my application.
DataSource Controls :: Deleting Row In Data Access Layer?
Jan 27, 2010I can use similar code below to select a row in my database when I enter a value (username) in text box and it successfully retrieves.however, I'd also like to delete row from database based on the username i enter in text box. My code runs but no row is deleted...my code is:
SQL:
private AdminTableAdapter adminGetUsers;
ADO.NET :: Creating A Generic Function - Data Access Layer
Feb 1, 2011I have written the following functions(1 & 2) in a class file(say abc.vb) to execute a sql statement in code behind.
[Code]....
ADO.NET :: Handle Errors In Data Access Layer Code?
Feb 28, 2011I am learning on how to create data access layer code for a web site. I want to ensure I am actually connecting to the datasource, so, I am wanting to use a try/catch block within my data access layer class methods. What I am not sure how to handle is a case where the connectionstate is not open. The method should ideally return a datatable. If an error is thrown would I just return an empty datatable? That is my first thought. My other thought is to return an object and pass a datatable if the connection succeeds or the exception if the connection fails.
View 10 RepliesWeb Forms :: Auto Generating The Data Access Layer?
Sep 1, 2010I am working on a small website for project management.There are around 15 database tables. Since i will be using asp.net 2.0, I wont be able to use LINQ.I need to finish the development of the website in a very quick manner.How do i generate the data access layer automatically. I found NHibernate as one solution, but it seems too difficult for such a small project.
View 2 RepliesBuild A Data Access Layer For New Web Based Application?
May 17, 2010I was looking to build a Data Access Layer for my new web based application, I'm using ASP.NET. I'm want to build a framework not only for this application but also want to utilize it for my future projects.
Actually my main aim is to make a framework, from DAC, DAL, BL to GUI. I want suggestions from you guys that what should i adopt, what give me flexibility, which suits for both small and large size applications.
Sharing Connection And Transaction In A Data Access Layer?
Aug 8, 2010 I'm building a Data Access Layer for my asp.net application. I would like to be able to share connection between different classes in order to manage transaction, but I don't know how to do that.
Example:
I have 2 classes, Order and OrderDetail.
I will call my DAL Order class for a SQL insert of a new order.
Inside the Insert method, I want to call my OrderDetail class to insert my order's details, and I would do that with same connection and transaction.