linq

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Workaround for "LINQ to Entities does not recognize the method 'Int32 Parse(System.String)'

I\'ve got a table that looks like this: Foo FooId : int (PK) BarId : int Baz: bit etc. It has other columns in it (etc.), but I have a specific query that I want to run that projects some stati[详细]

2023-04-13 02:49 分类：问答
Speed up linq query without where clauses

Quick LINQ performance question. I have a database with many many records and it\'s used for a webshop.[详细]

2023-04-13 02:02 分类：问答
SQL Where if else

How do i do translate this linq code into sql? if (storeId > 1) { query = from p in query where (p.StoreId == storeId)[详细]

2023-04-13 01:36 分类：问答
Need advice about IEnumerable<item> -> 3xIEnumerable<item>

What\'s better? 1) If i make 3 ViewBag on server and then Render my View using this ViewBags? Server ViewBag.LeftColumnTales = tales.Where((x, i) => i % 3 == 0);[详细]

2023-04-13 01:20 分类：问答
LINQ: Transforming items in a collection

Is there a LINQ method to modify items in a collection, such as simply setting a property of each item in a collection?Something like this:[详细]

2023-04-13 01:06 分类：问答
LINQ to Entities How do do a subquery for a field

To save multiple DB calls, and since it is from the same table, I\'m looking for one of the fields in my linq query to return an object with 2 fields that are IEnumerable.开发者_开发百科[详细]

2023-04-13 00:50 分类：问答
How to declare the result of query in LINQ to Entities

I just started using MS entity framework and have the following problem with LINQ. I will simplify my problem to make it clearer; let\'s say that I have three tables in SQL Server database:[详细]

2023-04-13 00:15 分类：问答
C# Using Linq to get column from jagged array

How do I get elements of a column from a jagged array as a flat array using Linq ???? public class Matrix<T>[详细]

2023-04-12 23:41 分类：问答
how to write LINQ to objects equivalent code for this code

How can we write LINQ equivalent code of this code: foreach (Function objFunc in _objCFLFile.CFLFunctionsList)[详细]

2023-04-12 23:31 分类：问答
Linq instead two loops get pixel color and point from image

How can i use linq to list all pixels from image and process on them? For example we have: for (int i = 0; i < this.bitmap.Width; i++)[详细]

2023-04-12 23:24 分类：问答