IVZDataSourceMapping.Value

Fore Syntax

Value: Variant;

Fore.NET Syntax

Value: System.Object;

Description

The Value property determines the value, corresponding to all visualizer items.

Comments

The Value property is used in case, if the MappingType property has the value of the VisualizatorDataMappingType constant transformation.

Fore Example

Executing the example requires that the repository contains an express report with the EXPRESS_REPORT identifier containing bubble tree. Set a constant transformation as one color for visualizer.

Add links to the Metabase, Express, Drawing, Visualizators system assemblies. This procedure should be called from the Main entry point.

Sub UsecProc;
Var
    Metabase: IMetabase; // Repository
    EaxAnalyzer: IEaxAnalyzer; // Express report
    BubbleTree: IVZBubbleTree; // Bubble tree
    ColorVisual: IVZColorVisual; // Color visualizator
    DataSourceMapping: IVZDataSourceMapping; // Settings used for data mapping with colors
    Brush: IGxSolidBrush;
Begin
    // Get repository object
    Metabase := MetabaseClass.Active;
    // Get express report object
    EaxAnalyzer := Metabase.ItemById("EXPRESS_REPORT").Edit As IEaxAnalyzer;
    // Get bubble tree
    BubbleTree := EaxAnalyzer.BubbleTree.BubbleTree;
    // Get visualizer colors
    ColorVisual := BubbleTree.ColorVisual;
    // Get settings used for data mapping
    DataSourceMapping := ColorVisual.ColorMapping;
    // Set constant transformation
    DataSourceMapping.MappingType := VisualizatorDataMappingType.DataMappingConstant;
    // Determine blue color for bubble tree elements
    Brush := New GxSolidBrush.Create(New GxColor.CreateRGB(0, 255, 255));
    DataSourceMapping.Value := Brush;
    // Display the type of data mapping to the console
    Debug.WriteLine("Data mapping type: " + DataSourceMapping.MappingType.ToString);
    // Save changes in express report
    (EaxAnalyzer As IMetabaseObject).Save;
End Sub UsecProc;

After executing the example, the bubble tree elements will be displayed using the specified color in the express report. The console will display the type of data mapping:

Data mapping type: 2

Fore.NET Example

The requirements and result of the Fore.NET example executing match with those in the Fore. Use Fore.NET analogs instead of Fore components.

Imports Prognoz.Platform.Interop.Metabase;
Imports Prognoz.Platform.Interop.Drawing;
Imports Prognoz.Platform.Interop.Express;
Imports Prognoz.Platform.Interop.Visualizators;
…
Public Shared Sub Main(Params: StartParams);
Var
    Metabase: IMetabase; // Repository
    EaxAnalyzer: IEaxAnalyzer; // Express report
    BubbleTree: IVZBubbleTree; // Bubble tree
    ColorVisual: IVZColorVisual; // Color visualizer
    DataSourceMapping: IVZDataSourceMapping; // Settings of data mapping by colors
    DataTransformer: IVZDataAdapter;
    Brush: IGxSolidBrush;
    Color: GxColorClass_2 = New GxColorClass_2.Create();
Begin
    // Get repository object
    Metabase := Params.Metabase;
    // Get express report object
    EaxAnalyzer := Metabase.ItemById["EXPRESS_REPORT"].Edit() As IEaxAnalyzer;
    // Get bubble tree
    BubbleTree := EaxAnalyzer.BubbleTree.BubbleTree;
    // Get visualizer colors
    ColorVisual := BubbleTree.ColorVisual;
    // Get data mapping settings
    DataSourceMapping := ColorVisual.ColorMapping;
    // Determine constant transformation
    DataSourceMapping.MappingType := VisualizatorDataMappingType.vdmtDataMappingConstant;
    // Determine blue color for bubble tree elements
    Color.CreateRGB(0, 255, 255);
    Brush := New GxSolidBrush();
    Brush.Color := color As GxColor;
    DataSourceMapping.Value := Brush;
    // Display data mapping type to the console
    System.Diagnostics.Debug.WriteLine("Data mapping type: " + DataSourceMapping.MappingType.ToString());
    // Save changes to the express report
    (EaxAnalyzer As IMetabaseObject).Save();
End Sub;