MapControl.ScrollArea Property

Gets or sets a rectangular area (also called scroll area) that confines the map center point.

Namespace: DevExpress.XtraMap

Assembly: DevExpress.XtraMap.v24.2.dll

Declaration

C#

public MapBounds ScrollArea { get; set; }

VB.NET

Public Property ScrollArea As MapBounds

Property Value

Type	Description
MapBounds	The boundaries that specify the area in which the map center point can be moved around.

Remarks

Use this property to limit scroll operations so that the map center point remains within the boundaries. To define these boundaries, specify the coordinates of the area’s top-left and bottom-right corners.

In the following animation, a rectangle depicts the scroll area boundaries and a dot indicates the map center position:

Example

This example specifies a rectangular area that confines the map center point:

C#

using DevExpress.XtraMap;
using System;
using System.Drawing;
using System.Windows.Forms;
//...
    private void Form1_Load(object sender, EventArgs e) {
        mapControl1.ScrollArea = new DevExpress.Map.MapBounds(
            new GeoPoint(44.568441, -11.877712), 
            new GeoPoint(36.219329, 4.030490));
        mapControl1.CenterPoint = new GeoPoint(40.155242, -2.912869);
        mapControl1.ZoomLevel = 4.5;
    }
//...        

VB.NET

Imports DevExpress.XtraMap
Imports System.Windows.Forms
'...
    Private Sub Form1_Load(ByVal sender As Object, ByVal e As EventArgs)
        mapControl1.ScrollArea = New DevExpress.Map.MapBounds(New GeoPoint(44.568441, -11.877712), New GeoPoint(36.219329, 4.030490))
        mapControl1.CenterPoint = New GeoPoint(40.155242, -2.912869)
        mapControl1.ZoomLevel = 4.5
    End Sub
'...