VB.NET and C# virtual earth custom server control

sydausguy

2.88/5 (10 votes)

Nov 28, 2006

64886

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An ASP.NET virtual earth custom server map control, with C# and VB.NET examples.

Sample Image

Introduction

This control has two functions, one is to display a location at longitude, latitude, and zoom level. The other is to show a collection of locations and add pins to those locations. You could use this control to easily display maps.

Background

The JavaScript code and the related framework can be found here.

Using the code

To get the example to run, you will need to put the GetMap() function in OnLoad or attach it to a control on the page.

<body onload="GetMap;">

Add the control to the page, set the browsable properties Height and Width, and if you want to specific a location, set the properties for longitude and latitude and zoom level, and this will display you the map.

VB.NET

//
<%@ Register Assembly="Asm.Map.VbNet" 
        Namespace="Asm.Map.VbNet" TagPrefix="cc1" %>

<cc1:MapControl ID="MapControl1" runat="server" 
        Height="600px" Width="700px" />
//

C#

//
<%@ Register Assembly="Asm.Map.Csharp" 
        Namespace="Asm.Map.Csharp" TagPrefix="cc1" %>

<cc1:MapControl ID="MapControl1" runat="server" 
        Height="600px" Width="700px" />
//

Code-behind

If you want to show a collection of locations, you'll need to bind to the map control the list of longitude, latitude, title, and text. In the example, I'm listing a few locations and putting a link to those locations.

VB.NET

Protected Sub Page_Load(ByVal sender As Object, _
          ByVal e As System.EventArgs) Handles Me.Load 
    
    Dim theList() As String theList = New String() _ 
        {47.6, -122.33, "Wal Mart", "<a  " & _ 
        "href="" http: www.walmart.com=""><span " & _ 
        "style="text-decoration: underline">Click Here</span></a>", _
         46.6, -122.33, "Target", "<a href="" http: " & _ 
         "www.target.com=""></a><span " & _ 
         "style="text-decoration: underline">Click Here</span>"} 
    MapControl1.DataSource = theList 
    MapControl1.DataBind() 
End Sub

C#

protected void Page_Load(object sender, EventArgs e) 
{ 
    string[] theList; 
    theList = new string[] { "47.6", "-122.33", "Wal Mart", _
              "<a href='\"http://www.walmart.com\"'><span" & _ 
              " style="text-decoration: underline">Click " & _ 
              "Here</span></a>", "46.6", "-122.33", "Target", _
              "<a href='\"http://www.target.com\"'><span" & _ 
              " style="text-decoration: underline">Click " & _ 
              "Here</span></a>" }; 
    MapControl1.DataSource = theList; 
    MapControl1.DataBind(); 
}