It opens a dialog box that is used to view data in an ETL task source.
Command parameters are passed in the Data property. Executing the command requires to specify the following value in this property:
Value type | Description |
IDtProvider | The data source, which data needs to be viewed. |
The command can be used only for the data source that is implemented by the IDtProvider interface. When working with an ETL task, data source parameters can be obtained in the IEtlPlainDataProvider.Provider property. A data source can also be created dynamically by means of classes of the Dt assembly.
Executing the example requires that the repository contains an ETL task with the ETL identifier. A data provider with the METABASEPROVIDER identifier is created in the task. Add links to the ETL, Metabase and Ui system assemblies.
Sub UserProc;
Var
MB: IMetabase;
ETL: IEtlTask;
CommandTarget: IUiCommandTarget;
Context: IUiCommandExecutionContext;
Begin
MB := MetabaseClass.Active;
ETL := MB.ItemById("ETL").Bind As IEtlTask;
CommandTarget := WinApplication.Instance.GetPluginTarget("Etl");
Context := CommandTarget.CreateExecutionContext;
Context.Data := (ETL.FindById("METABASEPROVIDER") As IEtlPlainDataProvider).Provider;
CommandTarget.Execute("ShowProviderData", Context);
End Sub UserProc;
After executing the example the data existing in the specified ETL task data source is displayed.
See also: