IMapLayerVisuals.Count

Syntax

Count: Integer;

Description

The Count property returns the number of collection indicators.

Example

Executing the example requires a form with the following components: the Button component named Button1, the MapBox component named MapBox1, and the UiMap component named UiMap1. UiMap1 is a data source for MapBox1. The UiMap1 component should be linked to a map containing indicators on the Regions layer.

The example is a handler of the OnClick event for the Button1 component.

Add links to the ExtCtrls, Forms, and Map system assemblies.

Sub Button1OnClick(Sender: Object; Args: IMouseEventArgs);
Var
    Map: IMap;
    Layer: IMapLayer;
    Visuals: IMapLayerVisuals;
    Vis: IMapVisual;
    Count, i: Integer;
Begin
    Map := UiMap1.Map;
    Layer := Map.Layers.FindByName("Regions");
    Visuals := Layer.Visuals;
    Count := Visuals.Count;
    For i := 0 To Visuals.Count - 1 Do
        Vis := Visuals.Item(i);
        Debug.WriteLine("Total indicators:" + Count.ToString); 
        Debug.WriteLine("Indicator names:");
        Debug.WriteLine((i+1).ToString + ". " + Vis.Name);
    End For;
End Sub Button1OnClick;

After executing the example the console window displays the number and names of indicators located in the Regions layer.

See also:

IMapLayerVisuals