IMapTopobaseAttributeNames.Count

Syntax

Count: Integer;

Description

The Count property returns the number of attribute names in the collection.

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 map must be connected to the UiMap1 component.

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;
    i: Integer;
    s: String;
Begin
    Map := UiMap1.Map;
    Layer := Map.Layers.FindByName("Regions");
    i := Layer.AttributeNames.Count;
    Debug.WriteLine("Number of names of attributes of the Regions layer: " + i.ToString);
    s := Layer.AttributeNames.Item(0);
    Debug.WriteLine("Name of the first attribute of the Regions layer: " + s);
End Sub Button1OnClick;

After executing the example the console displays the number of names of attributes of the Regions layer and name of the first attribute of the Regions layer.