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Time Tested LINQ Solutions: 1 - 25 of 370
 
In the code I find the maximum date from a table by using DateTime maxDate = Result.Select(md => md.Date).Max(); However I want to find the next largest date. In SQL it will be SELECT MA...
How would I replicate the following in Linq, a select in statement: SELECT * FROM Products WHERE Products.ProductID IN(5,7,8,12) Anyone?
Hi all, Does anybody know how to return a distinct list from a LINQ query? I have a generic list called recipientCandidates and I need to select all items out of this list where the roleTyp...
Ok.. I've tried all the examples on MSDN and other sites but nothing seems to work. I want to query a data table and find out how MANY rows match the selection criteria.  using LINQ to data...
Hi friends,  How can I implement an OUTER JOIN in LIND to Entities?... Thanks
I would like to know how to convert this SQL Query into a LinQ equivalent: SELECT nContractDeliverables.* FROM (nContractDeliverables  INNER(Join) nContractPaymentLines ON (nContractDeliver...
Hi Experts. Need a piece of advice here please. What's the best way to return the Anonymous type List ? Lets say I have this list:             var usersList = (from u in usersTable.G...
I want to use the entity framework to call a stored procedure. I created a function import using the designer in visual studio.  VmwEwonInterfaceEntities is the name of my model and SpCalacula...
Hi im new to using Visual Studio and Silverlight im following a tutorial at the Micrsoft Learn Silverlight page ("http://weblogs.asp.net/scottgu/pages/silverlight-tutorial-part-3-using-network...
Hi Experts. I have a feeling there must be a way for LINQ to automatically return the primary identity field value upon the insert. I'm executing something simple like this: PhoneTypes....
Hi, My Business layer class returns a datatable to my Winform. The datatable has fields CityId, CityName, StateId, StateName, CountryId and CountryName. Now I want to write LINQ on this ...
Hi experts, I have a problem working with getting the return data from an anonymous collections.  Thing goes crazy when it works the same way with Northwnd db, but failed for my own db. I ...
In .NET 3.5 (C#), I need to update an object in a List<T>.  I get the object out of the List<T> by querying it.  I want to simply overwrite the queried object with the parameter object (of the...
I have a windows form application that uses LINQ to play with my SQL db. The problem I am having is I cannot seem to retrieve the SCOPE_IDENTITY(ID of last inserted row) from my stored procedu...
I have an interesting occurence here... I have fairly basic code (using LINQ for entities with the MS entity framework beta from December) which compiles fine in one class. In another class, i...
I need to do a linq query that selects based on date,  problem is the date format in the database has additional time information and the select query value does not. Database Value: 1/17/0...
What is the "not equal" operator in a linq to sql select statement Say I have something like... db.customers.Select(o => o).Where(o => o.surname ... DOES NOT EQUAL "SMITH" What is the...
My Project: Windows Form App written in C# VS2008 I am seeking some advice and possible example for the following dilemma. I am new to Linq To Sql and Linq To DataSet and I am trying to find ...
Say, I have a DataTable with Customers and another DataTable with Orders, Can anyone illustrate how to write a  LEFT JOIN using LINQ (C#)? and get the result as a DataView? Thanks BT
I have a query:                 Return (From role In oEntities.aspnet_Roles _                        Join menu In oEntities.sssMenuRole On role.RoleId Equals menu.RoleId _                  ...
I am querying an XML file using Linq to XML in order to filter my list.  This works fine.  However I would like to Group the list by category and order it be category count.  When I try to add...
hi, i have a LIST<t> and a dataset.  i'm using LINQ to join the 2 data objects together and my final result is i want to update the items in the list with linq joined records. my code is belo...
Hi all, I'm trying to implement LINQ query on some tables I have a table called "Raffles", "Orders", "OrderTickets": Raffles: ------------------- -ID -Name -....... Orders: ----...
Hi I've created a LINQ to SQL DataContext class. The designer shows the correct joins on the tables. How do I query the joined tables in the from clause? Do I need to still specify the ...
How does one go about putting conditions into LINQ, searched the web and can't find a reasonable solution. So if a query string is passed, where statement is added to LINQ, or am I pretty much...