How do you select top 10 records in Linq?

how to take first 10 record using LINQ ?

1. var query = from a in context. Advertisements where a. idPartner == partnerid select a;
2. count = query. Count();
3. if (count > 10)
4. return (query. Skip(startIndex). Take(10). ToList());
5. else.
6. return query. ToList();

What is Linq in Entity Framework?

LINQ to Entities provides Language-Integrated Query (LINQ) support that enables developers to write queries against the Entity Framework conceptual model using Visual Basic or Visual C#. Queries against the Entity Framework are represented by command tree queries, which execute against the object context.

How do I order by in Entity Framework?

Method Syntax You can sort on multiple fields using the ThenBy method. By default, they sort the results in ascending order. The sort in descending order you can use OrderByDescending & ThenByDescending methods. Use OrderByDescending to sort in Descending order.

How do I get all records in Entity Framework?

var ptx = [modelname]. [tablename](); ptx. [tablename].

How can I do pagination in Linq?

How To Create Pagination Using LINQ In C#

1. Introduction.
2. Implementation.
3. Step 1 Open your Visual Studio and create a new project.
4. Step 2 Now, design a form like this.
5. Step 3 Create a class with the name SampleData.
6. Step 5 Write the following code at the time of constuctor creation.
7. Summary.

What is LINQ in .NET with example?

Language-Integrated Query (LINQ) is the name for a set of technologies based on the integration of query capabilities directly into the C# language. Traditionally, queries against data are expressed as simple strings without type checking at compile time or IntelliSense support.

Is LINQ faster than SQL?

We can see right away that LINQ is a lot slower than raw SQL, but compiled LINQ is a bit faster. Note that results are in microseconds; real-world queries may take tens or even hundreds of milliseconds, so LINQ overhead will be hardly noticeable.

What are the types of LINQ?

Types of LINQ

• LINQ to Objects.
• LINQ to XML(XLINQ)
• LINQ to DataSet.
• LINQ to SQL (DLINQ)
• LINQ to Entities.

How do I sort a list in LINQ?

LINQ includes five sorting operators: OrderBy, OrderByDescending, ThenBy, ThenByDescending and Reverse. LINQ query syntax does not support OrderByDescending, ThenBy, ThenByDescending and Reverse. It only supports ‘Order By’ clause with ‘ascending’ and ‘descending’ sorting direction.

How do I sort in LINQ?

Query Expression Syntax Examples

1. Primary Ascending Sort. The following example demonstrates how to use the orderby clause in a LINQ query to sort the strings in an array by string length, in ascending order.
2. Primary Descending Sort.
3. Secondary Ascending Sort.
4. Secondary Descending Sort.

Does Entity Framework use parameterized queries?

To add about Entity Framework, it internally uses Parameterised query so it is also SQL injection safe.

What is the difference between LINQ to SQL and LINQ to Entities?

LINQ to SQL allow you to query and modify SQL Server database by using LINQ syntax. Entity framework is a great ORM shipped by Microsoft which allow you to query and modify RDBMS like SQL Server, Oracle, DB2 and MySQL etc. It only works with SQL Server Database. …

How to use LINQ to select top 1?

Re: Linq to SQL – Select top 1… Use the OrderByDesecnding () amd First () query operators. Mark replies as answers if they helped you solve the problem. Re: Linq to SQL – Select top 1… Re: Linq to SQL – Select top 1… No – LINQ to SQL does the optimization of doing everything on the server side and getting you only one record.

How to improve the performance of LINQ to entities?

Checking a SQL query before submitting it to a database is the most important thing you can do when trying to improve the performance of a LINQ-to-Entities query. We all know that the LINQ-to-Entities query will be converted to a SQL query and will be executed against a database.

How to get top N Records in LINQ?

I just need the top N records as the query do the orderby and other clauses. Is this possible or I will have to get the top N using foreach loop? You can just use the .Take method call to get a couple of result. You can read more on this topic here.

How to generate entity data model in LINQ?

You need to click YES button. Then the Entity Data Model Wizard will open up where you need to select Generate from database option. Now the wizard will ask you to connect and configure the connection string to the database.