convert sql query to linq c# online

Tags: style blog color ar for strong SP div on1. Query all fieldsusing New Northwindcontext ()) { var expr = context. Products; foreach (var in expr) { Console.WriteLine (item. ProductName);} }SELECT [Extent1].[ProductID] as [ProductID], [Extent1].[CategoryID] as [CategoryID], [Extent1].[ProductName] as [ProductName], [Extent1].[UnitPrice] as [UnitPrice], [Extent1].[discontinued] as [discontinued] from

Label: = new Northwindcontext ()) { var= context. Products; foreach (var in expr) { Console.WriteLine (item. ProductName); } } SELECT [Extent1].[ProductID] as [ProductID], [Extent1].[CategoryID] as [CategoryID], [Extent1].[ProductName] as [ProductName], [Extent1].[UnitPrice] as [UnitPrice], [Extent1].[discontinued] as [discontinued] from [dbo].[Product] as [Extent1] 2. Querying a specified field var = context. Products . Select =

During this time, writing of LINQ and SQL is missing! Or are you getting old? More and more will not change Problem: ========================================================== ======== VaR ret = from X in LSWhere (String. isnullorempty (Arg. querytext )? True:((X. ?? ""). Toupper (). Contains (Arg. querytext. toupper ())| (X. B ?? ""). Toupper (). Contains (Arg. querytext. toupper ())| (X.

. LevelNumber = 3 )? O. MerchantReps. Where (a => a. LevelNumber = 3). FirstOrDefault (). Rep. Name :""),RepLev4 = (o. MerchantReps. Any (a => a. LevelNumber = 4 )? O. MerchantReps. Where (a => a. LevelNumber = 4). FirstOrDefault (). Rep. Name :""),RepLev5 = (o. MerchantReps. Any (a => a. LevelNumber = 5 )? O. MerchantReps. Where (a => a. LevelNumber = 5). FirstOrDefault (). Rep. Name :""),Address1 = o. DBAAddress1,Address2 = o. DBAAddress2,City = o. DBACity,State = o. DBAState,Zip = o. DBAZip,P

of writing to SQL (I had to admire the full potential of the query by using LINQ), some of my friends would be able to solve the query problem easily with the LINQ expression: IlistOrder> Search (ExpressionFuncOrder,Bool> Expression );

filter condition "Nothing more" to add a parameter to the interface, a parameter to the stored procedure, and a condition to the WHERE clause ,...... Working hard. The customer's filtering condition is as follows: since the order contains the "country" field, you want to filter the condition according to the country, and you can select multiple countries, for example: The engineer may fall down when he sees the figure ...... The above can be used as a joke, but in other words, there is no uni

. studentDataDataContext (); // query the var student = db. students. where (n => n. sex = 0); // output the Student name Console. writeLine ("_____________ simple query __________________________________"); Console. writeLine ("Name of male output student gender:"); foreach (var stu in student) {Console. writeLine (stu. studentName);} Console. writeLine ("__________ querying partial field queries (querying

length range variable.The following is the translated code:... var translatedquery = sampledata.users new {user, length = user. Name.length}) = z.length) new {Name = z.user.name, Length = z.length});.. Each part of the query is appropriately adjusted: for the original query expression, referring directly to user or length, if the reference occurs after the LET c

Language-Integrated Query (LINQ) is the name of a set of technologies that are built on the direct integration of query functionality into the C # language (as well as Visual basic and any other possible. NET language). with LINQ, the qu