linq

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how to build case insensitive strong typed LINQ query in c#?

I try to build extension method for IQuerable like this: public static IQueryable<T> FilterByString<T>(this IQueryable<T> query,[详细]

2023-04-12 23:01 分类：问答
fill linq null data c# from previous line

I have bill details in list which contains the heading: Accou开发者_开发百科nt Numbers, Dates, Service Number, Charge category, Details, exgst, ingst, Detailsfill[详细]

2023-04-12 21:11 分类：问答
LINQ MVC 3 and double query in profiler

I\'ve installed Linq To Sql Profiler and notice, th开发者_运维技巧at i have double query executing (or i\'m wrong). So:[详细]

2023-04-12 20:21 分类：问答
C# Minimum difference in a list

I want to find minimum difference in a list of xy point data. (can contain duplicate x values and y values)[详细]

2023-04-12 20:02 分类：问答
Add minutes from one column to datetime column in linq query

I have a column in my database named Created which is a datetime and a column named M开发者_如何学Cinutes which is a varchar(5) and will contains values such as 0, 60, 120, etc.[详细]

2023-04-12 19:43 分类：问答
setting datacontext through Xml instead of DBML file..?

How to set datacontext class through just - XML file not as DBML file .?? Scenario: Has a DBML file with DataContext defined in it.By Specifying the Connection string am accessing one table[详细]

2023-04-12 19:30 分类：问答
LINQ lambda syntax for SQL subquery + count(distinct on one column)

How would I write the following SQL query in lambda-notation LINQ? select \'myString\', count(distinct val)[详细]

2023-04-12 19:14 分类：问答
Get the highest ID number in a SQL table , LINQ , C#?

How can we get the highest ID number in an empty SQL table ? e.g: Assume we have a table with ten rows, but all of rows were deleted , now we wanna get the highest row\'s ID !!![详细]

2023-04-12 17:40 分类：问答
Populating a listbox from an aysnc httpwebrequest

I\'m currently doing a little project that grabs an XML document, parses it via Linq (picking certain elements) and then binds it to a listbox via an async httpwebrequest.[详细]

2023-04-12 17:17 分类：问答
C# LINQ DatabaseEntitie Query to first Value in Last Element results in Error

I have my Microsoft SQL 2008 Database Entity with one Table containing 6 Columns where the first column is simply my primarykey which is a number which gets increased each step.[详细]

2023-04-12 16:54 分类：问答