This will translate to a where in clause in Linq to SQL... var myInClause = new string[] {"One", "Two", "Three"}; var results = from x in MyTable where myInClause.Contains(x.SomeColumn) select x; // OR var results = MyTable.Where(x => myInClause.Contains(x.SomeColumn));...
var query = from item in dataSource [join clause] [where clause] [group by clause] [orderby clause] select item;from：指定数据源和范围变量，用于指定要查询的集合或数据源以及每个元素的范围变量。join：用于指定多个数据源之间的关联操作。where：用于指定筛选条件，过滤满足特定条件的...
1 Linq to collection (where clause) 2 Using the equivalent to the SQL IN function with LINQ with a collection 5 Where clause on collection 19 Linq to SQL: WHERE IN statement 2 Linq where clause for collection in a collection 1 How to Query 'In clause' upon collection of Collectio...
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这将转换为Linq to SQL中的where in子句...var myInClause = new string[] {"One", "Two", "Three"};var results = from x in MyTable where myInClause.Contains(x.SomeColumn) se...
在LINQ的where子句中传递动态条件可以通过使用Expression树来实现。Expression树可以在运行时创建和修改LINQ查询,从而实现动态查询条件。 首先,我们需要使用System.L...
Aggregate Clause Group By 子句在GitHub 上與我們共同作業 您可以在 GitHub 上找到此內容的來源,在其中建立和檢閱問題和提取要求。 如需詳細資訊,請參閱我們的參與者指南。 .NET 意見反應 .NET 是開放原始碼專案。 選取連結以提供意見反應: 開啟文件問題 提供產品意見反應 其他資源 訓練 模組 利用Kusto 查詢語...
A query is stored in a query variable and initialized with a query expression. You use C# query syntax to write queries. The query in the previous example returns all the even numbers from the integer array. The query expression contains three clauses: from, where, and select. (If you'...
In the previous example, thewhereclause filters out all null elements in the categories sequence. This technique is independent of the null check in the join clause. The conditional expression with null in this example works becauseProducts.CategoryIDis of typeint?, which is shorthand forNullable...
DimqueryResults =FromcustIncustomersWherecust.Country ="Canada"Selectcust.CompanyName, cust.Country LINQ queries can also be used to combine multiple sources of data and return a single result. This can be done with one or moreFromclauses, or by using theJoinorGroup Joinquery clauses. The ...