ICachedDataset.Filter

Syntax

Description

The Filter property returns filtering condition of data in cache.

Example

Sub UserProc;
Var
    MB: IMetabase;
    DSInst: IDatasetInstance;
    Cache: ICachedDataset;
    i: Integer;
Begin
    MB := MetabaseClass.Active;
    DSInst := MB.ItemById("Table_1").Open(Null) As IDatasetInstance;
    Cache := DSInst.OpenCached;
    Cache.FetchToRecord(Cache.RecordCountAll);
    Cache.Filter.AsString := "Num1 < 30";
    Cache.Filtered := True;
    i := Cache.RecordCount;
End Sub UserProc;

After executing the example, all records are loaded into cache from a data source, then the filter (filtering condition - Num1 <30) is set, and the "i" variable contains the quantity of records remaining after filtering.