DbCommand::ExecuteScalarAsync Method ()

.NET Framework (current version)
 

An asynchronous version of ExecuteScalar, which executes the query and returns the first column of the first row in the result set returned by the query. All other columns and rows are ignored.

Invokes ExecuteScalarAsync with CancellationToken.None.

Namespace:   System.Data.Common
Assembly:  System.Data (in System.Data.dll)

public:
Task<Object^>^ ExecuteScalarAsync()

Return Value

Type: System.Threading.Tasks::Task<Object^>^

A task representing the asynchronous operation.

Exception Condition
DbException

An error occurred while executing the command text.

For more information about asynchronous programming, see Asynchronous Programming.

Universal Windows Platform
Available since 10
.NET Framework
Available since 4.5
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