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

Session.ExecuteQueryAsync(String, String[], QueryParameterCollection, CancellationToken) Method

Asynchronously executes the specified SQL query and returns a result set.

Namespace: DevExpress.Xpo

Assembly: DevExpress.Xpo.v20.2.dll

Declaration

public Task<SelectedData> ExecuteQueryAsync(
    string sql,
    string[] parameterNames,
    QueryParameterCollection parameters,
    CancellationToken cancellationToken = default(CancellationToken)
)

Parameters

Name Type Description
sql String

Specifies an SQL statement.

parameterNames String[]

Specifies parameter names.

parameters QueryParameterCollection

Specifies query parameter values.

Optional Parameters

Name Type Default Description
cancellationToken CancellationToken

null

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

Returns

Type Description
Task<SelectedData>

A Task<TResult> that returns a result set compatible with XPDataView.

Remarks

Use the ExecuteQueryAsync method to query data stores for resulting sets. You can visualize resulting sets using the XPDataView. Refer to this article for additional information: How to: Access Data in SQL Query Results.

Use QueryParameterCollection to pass strongly-typed parameters. See examples here: Always Encrypted (SQL Server only).

To learn more about executing SQL statements in XPO, refer to Direct SQL Queries.

NOTE

The ExecuteQueryAsync method sends statements directly, so the correct statement syntax and parameter names format depends on a particular database server.

See Also