IDataReader.FieldCount Property

Статья
12/15/2008

Gets the number of fields in the data reader.

Пространство имен: Microsoft.ReportingServices.DataProcessing
Сборка: Microsoft.ReportingServices.Interfaces (in microsoft.reportingservices.interfaces.dll)

Синтаксис

'Декларация
<StrongNameIdentityPermissionAttribute(SecurityAction.LinkDemand, PublicKey:="0024000004800000940000000602000000240000525341310004000001000100272736ad6e5f9586bac2d531eabc3acc666c2f8ec879fa94f8f7b0327d2ff2ed523448f83c3d5c5dd2dfc7bc99c5286b2c125117bf5cbe242b9d41750732b2bdffe649c6efb8e5526d526fdd130095ecdb7bf210809c6cdad8824faa9ac0310ac3cba2aa0523567b2dfa7fe250b30facbd62d4ec99b94ac47c7d3b28f1f6e4c8")> _
ReadOnly Property FieldCount As Integer

[StrongNameIdentityPermissionAttribute(SecurityAction.LinkDemand, PublicKey="0024000004800000940000000602000000240000525341310004000001000100272736ad6e5f9586bac2d531eabc3acc666c2f8ec879fa94f8f7b0327d2ff2ed523448f83c3d5c5dd2dfc7bc99c5286b2c125117bf5cbe242b9d41750732b2bdffe649c6efb8e5526d526fdd130095ecdb7bf210809c6cdad8824faa9ac0310ac3cba2aa0523567b2dfa7fe250b30facbd62d4ec99b94ac47c7d3b28f1f6e4c8")] 
int FieldCount { get; }

[StrongNameIdentityPermissionAttribute(SecurityAction::LinkDemand, PublicKey=L"0024000004800000940000000602000000240000525341310004000001000100272736ad6e5f9586bac2d531eabc3acc666c2f8ec879fa94f8f7b0327d2ff2ed523448f83c3d5c5dd2dfc7bc99c5286b2c125117bf5cbe242b9d41750732b2bdffe649c6efb8e5526d526fdd130095ecdb7bf210809c6cdad8824faa9ac0310ac3cba2aa0523567b2dfa7fe250b30facbd62d4ec99b94ac47c7d3b28f1f6e4c8")] 
property int FieldCount {
    int get ();
}

/** @property */
/** @attribute StrongNameIdentityPermissionAttribute(SecurityAction.LinkDemand, PublicKey="0024000004800000940000000602000000240000525341310004000001000100272736ad6e5f9586bac2d531eabc3acc666c2f8ec879fa94f8f7b0327d2ff2ed523448f83c3d5c5dd2dfc7bc99c5286b2c125117bf5cbe242b9d41750732b2bdffe649c6efb8e5526d526fdd130095ecdb7bf210809c6cdad8824faa9ac0310ac3cba2aa0523567b2dfa7fe250b30facbd62d4ec99b94ac47c7d3b28f1f6e4c8") */ 
int get_FieldCount ()

function get FieldCount () : int

Значение свойства

When not positioned in a valid recordset, 0; otherwise the number of columns in the current record. The default value is -1.

Замечания

After executing a query that does not return rows, FieldCount returns -1.

Синхронизация потоков

Any public static (Shared in Microsoft Visual Basic) members of this type are thread safe. Any instance members are not guaranteed to be thread safe.

Платформы

Платформы разработки

Список поддерживаемых платформ см. в разделе Hardware and Software Requirements for Installing SQL Server 2005.

Целевые платформы

Список поддерживаемых платформ см. в разделе Hardware and Software Requirements for Installing SQL Server 2005.

См. также

Справочник

IDataReader Interface
IDataReader Members
Microsoft.ReportingServices.DataProcessing Namespace

Поделиться через