.NET Framework 4.5.2+
.NET Framework 4.5.2+
.NET Standard 2.0+

Session.ExecuteNonQueryAsync(CancellationToken, String, String[], Object[]) Method

Asynchronously executes the specified SQL statement and returns the number of rows affected.

Namespace: DevExpress.Xpo

Assembly: DevExpress.Xpo.v20.2.dll


public Task<int> ExecuteNonQueryAsync(
    CancellationToken cancellationToken,
    string sql,
    string[] parameterNames,
    object[] parameterValues
Public Function ExecuteNonQueryAsync(
    cancellationToken As CancellationToken,
    sql As String,
    parameterNames As String(),
    parameterValues As Object()
) As Task(Of Integer)


Name Type Description
cancellationToken CancellationToken

A CancellationToken object that delivers a cancellation notice to the running operation.

sql String

Specifies an SQL statement.

parameterNames String[]

Specifies parameter names.

parameterValues Object[]

An array of objects specifying parameters to pass to the database server along with the query.


Type Description

A Task<TResult> that returns a number of affected rows.


Use ExecuteNonQueryAsync to asynchronously execute SQL statements that do not produce result sets, such as UPDATE, INSERT, and DELETE statements.

The example below demonstrates how to use this method. Here, session is the Session instance.

using System.Threading;
using DevExpress.Xpo;
// ...
CancellationTokenSource cts = new CancellationTokenSource();
await UpdateOrderDetailsAsync(cts.Token);
// ...
public async Task UpdateOrderDetailsAsync(CancellationToken cancellationToken) {
    const string queryString = 
        "UPDATE [Northwind].[dbo].[Order Details] SET [Discount] = @p1 WHERE [UnitPrice] > @p2";
    int rowsAffected = await session.ExecuteNonQueryAsync(
        new string[] { "p1", "p2" },
        new object[] { 0.15, 100 }

Note that a format of parameter names in a SQL statement depends on the ADO.NET provider and database you use.

For more information on executing SQL statements in XPO, refer to Direct SQL Queries.


The ExecuteNonQueryAsync method sends statements directly, so the correct statement syntax depends on a particular database server.

See Also