The following illustration shows a LINQ to SQL query operation that performs a simple transformation on the data. The query takes a sequence of Customer objects as input, and selects only the Name property in the result. Because Name is a string, the query produces a sequence of strings as...
In this tutorial, you create a data source and write several LINQ queries. You can experiment with the query expressions and see the differences in the results. This walkthrough demonstrates the C# language features that are used to write LINQ query expressions. You can follow along and build ...
Tutorial: Writing queries in C# Standard query operators How-to articles Asynchronous programming C# concepts How-to C# articles Advanced topics The .NET Compiler Platform SDK (Roslyn APIs) C# programming guide Other C# documentation Download PDF ...
If Linq to SQL class is added, a .dbml file is added to the project. You open the .dbml and can set the connection to SQL database by clicking “Server Explorer” and “Add Connection” To work with LINQ to SQL and Visual LINQ Query Builder in Visual Studio 2008, you will ne...
Find out if data exist and return true or false (linq to sql) FindControl method for dynamic controls! Finding App_Data folder from WebService finding HTML control Fingerprint biometrics integration into ASP.Net First loading in IIS too slow FirstOrDefault in Select New ( LINQ ) footer not...
See all formats and editions This book is a step-by-step tutorial to guide you through learning WCF and LINQ to Entities. You will be guided to create five WCF and LINQ solutions from scratch, of which three are multi-tiered real-world WCF service solutions, so you will not only be rea...
normally when we do left or right outer join with sql query then we use left or right keyword to inform sql server that i want left or right join but with linq there is no such keyword used. so how system understand that i am using left or right join ?
Tutorial: Writing queries in C# Standard query operators How-to articles Asynchronous programming C# concepts How-to C# articles Advanced topics The .NET Compiler Platform SDK (Roslyn APIs) C# programming guide Other C# documentation Download PDF ...
Tutorial: Writing queries in C# Standard query operators How-to articles Asynchronous programming C# concepts How-to C# articles Advanced topics The .NET Compiler Platform SDK (Roslyn APIs) C# programming guide Other C# documentation Download PDF ...
The following Linq SQL statement how can I format the datetime value into dd/mm/yyyy复制 List<EmployeeModel> EmpList = _iRepo.GetAll().Where(u => u.EmpLeaveDate >= _dtfrom && u.EmpLeaveDate <= _dtto). Select(u => new EmployeeModel { DepotNo = u.DepotNo, EmployeeName = u....