sql query to linq converter online

criteria in the collection - foreach(Car datainchlist) the { * strings = data. Name.replace (Key,""+ key +""); $Data. Name =s;Panax Notoginseng } - } the + //judging the second condition A stringMi = Price1. Text;//take text to determine if it is empty the stringMa = price2. Text;//take text to determine if it is empty + - //first determine whether the text box is empty in the second condition

determine if it is empty42String ma = Price2. Text;//Take text to determine if it is empty4344//First determine whether the text box is empty in the second condition45if (mi! ="" ma! ="")46{47Decimal min =Convert.todecimal (Price1. Text);48decimal max = Convert.todecimal (Price2. Text); 49 50 list= list. Where (p=>p.price.value>=min p.pricemax). ToList (); 51 52 }53 54 // Specify the data source to display Span style= "color: #008080;" >55 repeater1.datasource = List; Repeater1.databind () 5

the first 8 { 9Model. Ranking = i +1; Ten } One Else A {Determine if the overall score of the employee is the same as the total score for the previous employee - if(Nationalpaiming[i].totalscoure = = Nationalpaiming[i-1].totalscoure) - { theModel. Ranking = List[i-1]. Ranking; //Same rank same - } - Else - { +Model. Ranking =

(); } #endregion #regionIEnumerable MembersIEnumerator Ienumerable.getenumerator () {return((IEnumerable) results). GetEnumerator (); } #endregion #regionIfunctionresult Members Public Objectreturnvalue {Get{returnreturnvalue;} } #endregion #regionIDisposable Members Public voidDispose () {}#endregion } View Code Detailed Visibility HTTP://SOCIAL.MSDN.MICROSOFT.COM/FORUMS/EN/LINQPROJECTGENERAL/THREAD/F403E047-E38C-45AB-9155-DBF83

The original wording:Dim db = from city in datacontext1.addresscityWhere City. Provinceid = dgvaddress (2, E.rowindex). Value.tostring,Select City. Cityid, City. Cityname.trimThe spaces in the cityname can be removed, but the column names in db change, and errors occur in the bound ComboBox.The modified wording:Dim db = from city in datacontext1.addresscityWhere City. Provinceid = dgvaddress (2, E.rowindex). Value.tostringSelect New with {. Cityid = City. Cityid,. CityName = City. Cityname.trim}

Preface Today, I want to learn how to perform database operations, add, delete, and modify through LINQ. Preparations: first, a web project of ASP. net mvc 3.0 is established, Create a database and table Use [yqblog] gocreate table [DBO]. [tbguestbook] ([ID] [uniqueidentifier] not null primary key, [username] [varchar] (50) not null, [posttime] [datetime] not null, [Message] [varchar] (400) null, [isrequired] [bit] not null, [reply] [varchar] (4

In the previous article LINQ to SQL Advanced Series (vi), we mentioned dynamic queries that use object. This article on the basis of the above, and then do more in-depth extension. At the same time fix some of the above wrong places. 1, the dynamic query of object continued The first thing to do is to change the function of find to an extension method. An exten

One day, a reader emailed me and asked me if I was interested in doing a translation application, according to the "Food Translation Court-English translation of Chinese menu" to the Chinese name into English dishes, because he often eat with foreigners, so I hope that his WP mobile phone can have one such application, and we just take this opportunity to explore LINQ to SQL queries and related optimization

Program code The code is as follows Copy Code Like ' zhang% 'var data = context. People.where (person => person. Name.startswith ("Zhang"));Like '%zhang 'var data = context. People.where (person => person. Name.endswith ("Zhang"));Like '%yuan% 'var data = context. People.where (person => person. Name.indexof ("Yuan")!=-1); The Sqlmethods.like method under the System.Data.Linq.SqlClient namespace can implement the same functionality, but can be used only in

This article is suitable for small data volumes. For large data volumes, another method is required. For more information, see the next article.First of all, searching on the internet is essential. After learning about the direction of the Multi-condition combination query of linq, you can start to do it. First, write a delegate method:Copy codeThe Code is as follows:Private bool GetCondition (FeedBack fb){

Using system;Using system. collections;Using system. configuration;Using system. Data;Using system. Web;Using system. Web. Security;Using system. Web. UI;Using system. Web. UI. htmlcontrols;Using system. Web. UI. webcontrols;Using system. Data;Using system. LINQ;Using system. reflection;Using system. Collections. Generic; Public Class{Public A (string Arg){Field = ARG;}Public String Field{Get;Set;}} Public partial class test: system. Web. UI. Page

Expression. Lambda Func T, Bool > (Expression. And (expr1.body, invokedexpr), expr1.parameters );} } The following is an example: List Product > Getproductsbyand ( Params String [] Keywords) ... {Dbdatacontext DB = New Dbdatacontext (database. connectionstring );Iqueryable Product > Query = DB. Products; Foreach ( String Keyword In Keywords) ... {StringTemp=Keyword;

Select Description: Query the customer's company name, address information Query syntax: var 构建匿名类型1 = from c in ctx.Customers select new { 公司名 = c.CompanyName, 地址 = c.Address }; Corresponding SQL: SELECT [t0].[CompanyName], [t0].[Address] FROM [dbo].[Customers] AS [t0] Description: Query the employee's name and

Label:In the data query, often encountered the need to dynamically build query conditions. Using LINQ to implement this requirement may be more cumbersome than stitching up SQL statements in the past. This article describes 3 ways to dynamically build query conditions at run

multiple table connection queries are often used in queries about databases, where the query functionality for LINQ is simply presented. 1, single-table query [CSharp] View plain copyvarquery = fromTcinchDb.tbclasswhereTc. ClassID = ="1" //query Form Tbclass Select New{ClassID=TC. ClassID, C