IPrxAlgorithmReportParamControl.Param

Syntax

Description

The Param property determines the current object parameter, which values will be sent to calculation algorithm parameter.

Comments

The parameter should be created based on a repository dictionary.

Example

Executing the example requires that the repository contains a regular report with the REPORT identifier and a calculation algorithm with the ALGORITHM identifier. The algorithm and the regular report contain a parameter based on the same repository dictionary.

The file system should contain the button image file D:\Work\Image\btn16x16.png.

Add links to the IO, Metabase, and Report system assemblies.

Sub UserProc;
Var
    Mb: IMetabase;
    Report: IPrxReport;
    UserBtn: IPrxUserButton;
    AlgAction: IPrxUserButtonActionAlgorithm;
    AlgParam: IPrxAlgorithmParam;
    ParamControl: IPrxAlgorithmReportParamControl;
Begin
    Mb := MetabaseClass.Active;
    Report := Mb.ItemById("REPORT").Edit As IPrxReport;
    // Create a new custom button
    UserBtn := Report.UserButtons.AddByType(PrxUserButtonType.Algorithm);
    UserBtn.Name := "Start algorithm";
    // Set up custom button
    UserBtn.Icon := New FileStream.Create("d:\Work\Images\btn16x16.png", FileOpenMode.Read, FileShare.DenyNone);
    UserBtn.IconType := "png";
    UserBtn.SmallIcon := False;
    // Set up actions
    AlgAction := UserBtn.Action As IPrxUserButtonActionAlgorithm;
    AlgAction.Algorithm := Mb.ItemById("ALGORITHM");
    AlgParam := AlgAction.Params.Item(0);
    AlgParam.Type := PrxAlgorithmParamType.ReportParam;
    ParamControl := AlgParam.Control As IPrxAlgorithmReportParamControl;
    ParamControl.Param := Report.MetabaseObject.Params.FindById("ITEM1");
    ParamControl.AttributeId := "KEY";
    ParamControl.SelectionType := PrxAlgorithmParamSelectionType.First;
    // Save changes
    (Report As IMetabaseObject).Save;
End Sub UserProc;

After executing the example a new custom button is created in the regular report. Name and image are set for the button. Algorithm calculation is selected as a custom button action. Value of the KEY attribute of the first element selected in the regular report parameter will be sent to calculation algorithm parameter.