AggregationFieldCount-Eigenschaft

Syntax

'Declaration
ReadOnly Property AggregationFieldCount As Integer
    Get
'Usage
Dim instance As IDataReaderExtension
Dim value As Integer

value = instance.AggregationFieldCount

int AggregationFieldCount { get; }

property int AggregationFieldCount {
    int get ();
}

abstract AggregationFieldCount : int

function get AggregationFieldCount () : int

Hinweise

The AggregationFieldCount property enables you to supply specific, aggregation information about your result set to the report server. Take, for instance, the following result set:

City          State          Sales
====================================
Seattle       WA             150.65
Seattle       (null)         150.65
Tacoma        WA              75.54
Tacoma        (null)          75.54
(null)        WA             226.19
Portland      OR             112.25
Portland      (null)         112.25
(null)        OR             112.25
(null)        (null)         338.44

You should return an integer value representing the number of fields that are aggregation fields for each row in your result set. In the previous example, AggregationFieldCount should return 2 for the first row, 1 for the second row, 2 for the third row and so forth. For row nine, AggregationFieldCount should return 0.

After executing a query that does not return rows, AggregationFieldCount should return -1.

Siehe auch

Verweis