i want create a class Library work with SQL Linq ,when i create a LINQ Data Class it automatic create some connectionString and use the database namemy question is can i change some settings that, use this class Library in difrent website with difrent connectionStrings?
I am going to return an Object depending on the Class and Year params. I want to remove the where condition when the Class and Year parames are null or zero.
I have a class object which is basically kind of hierarchy and looks like this when I convert that to XML.
[Code]....
So you can see that I have "objectComponent" which is kind of hierarchy and that hierarchy can be upto any level.
Now I need to update <quantity> value where <sku> = "SKU 2", remember this <sku> can be anywhere in hierarchy, so I need to update its <quantity> value where <sku> = "SKU 2".
So my question is how can I update that value using Linq query and specifically, I need that value to be updated in the actual object itself because I need to pass that updated object for furthur process.
In my c# code, there is only one class named "ObjectComponent" and that has all of these properties and "objectBundle" as array and the whole hierarchy starts from there.
I want to write the Customer belongs their product
Customer 1 and their details
then products details Purchased by Customer 1
Customer 2 and their details
then products details Purchased by Customer 2
public class Customer { public int CustID { get; set; } public string CustName { get; set; } public string CustEmail { get; set; } public string CustContact { get; set; } public string CustAdd { get; set; }
For some unknown reason I suddenly am unable to create an object variable for a Linq Data Class. If I create a new project and try the process again with the same database everything works as advertized.The code I am using is Dim db As New RoggDataContext which gives me an error on the object variable "db": Overload resolution failed because no accessibility 'NEW' accepts this number of arguments.I have looked inside every file in the Web Project like the web config to check the connection string, gobal, and designer.vb looking for any errors whit no JOY. I also tried to create a new form and code behind with a button and received the same error.This is mind blowing because as I already stated, I can create a new Web Site and the problem goes away.
I am creating a ASP.Net application in MVC architecture. I have to connect to a database on MS Access and be able to enter data into it. All examples I see use SQL Server. When I try from prject explorer Add New Item -> Data -> I am unable to find Drivers for Access Database.
From the Data Connections in Server Explrere window I was able to make a successful connection to the database.
I am new to LINQ but not >net. I do understand SQLDataSource, etc. I was just told by a coworker not to use a LINQ to SQL Class for my new project (Bank.dbml). I was told to use instead the ADO.Net Entity Data Model (bank.edmx).
BankModel.edmxBank.dbml
When only using ADO.Net Entity Data Model I try to associate a GridView with a new LinqDataSource I get no options. When I add a LINQ to SQL Class I get the option to use it but it is empty. Is this because all my LINQ classes are mapped in the ADO.Net Entity Data Model (bank.edmx)? Can someone tell me (or point me to) what the differences are in these two?
I want to delete entity from linq class this entity has one to many relationshipe with another table so I want to delete all entities related to this one for example I want to delete classroom so i should delete all student is this classroom fisrt i don't how to delete all these student in one time
I have added a partial class to one generated by the Entity Framework. I wanted to add a calculated field that I could bind to my GridView. However, when I try to access the new property, I get an error message that this is a limitation to Entity Framework.Are there any work arounds to accomplish this?
There is a session on a web form that holds the holidays of a year.I just intend to remove any repetitive days.... but couldn't get index of item in list.
Protected Sub PersianDateCalendar1_ValueChanged(ByVal sender As Object, ByVal e As System.EventArgs) Handles PersianDateCalendar1.ValueChanged
I have a no. of records being inserted in a List<>.I have IQueryable returning more then one recordI want to check whether the records IQueryable returns are present in the list or not?
I have a class Trans with various properties, including a boolean named Deleted.I have a generic list of Trans that are loaded from the database. I want to use linq to set all the Trans in this list to Deleted. Can I use linq to do this?