Creating a basic map - Map Module [Lead: Kevin Schreiner]

Forum DotNetNuke® Pro... Map Module [Lea... Creating a basic map

11/21/2006 12:32 PM

	Robert Stanionis
5 posts
www.atlantapd.org

Re: Creating a basic map

Ok I almost have a working basic google map... There is one problem... When I pass the map.setCenter it causes the app to fail.. Here is my code for you guys to look at and or use.. I used the Bi4ce.GoMap as a reference to get me started.. I checked the GoMap source and could not find where the Map.setCenter was passed.

.ascx file

<%@ Control Language="VB" AutoEventWireup="false" CodeFile="maps.ascx.vb" Inherits="maps" %>

<asp:Literal ID="GoogleMapScript" Runat="server"></asp:Literal>

<asp:Literal ID="GoogleMap" Runat="server"></asp:Literal>

<asp:Literal ID="GoogleJavaScript" Runat="server"></asp:Literal>

.ascv.vb file

Imports DotNetNuke.Entities.Modules

Imports DotNetNuke.UI.Utilities

Imports Microsoft.VisualBasic.ControlChars

Public Class maps

Inherits PortalModuleBase

Protected Sub Page_Load(ByVal sender As Object, ByVal e As System.EventArgs) Handles Me.Load

GoogleMapScript.Text = "<script src='http://maps.google.com/maps?file=api&v=2&key=ABQIAAAA1K8Zoeblm8NGUhtVKx9XWBTTIzPU9tdsxWq6A66V5E_Uwk7exBR9yo5xeFaVgit0d1j77-k5M3VwGQ' type=""text/javascript""></script>"

GoogleMap.Text = "<div id=""map"" style=""width:640; height:480;""></div>"

SetGoogleJavaScript()

End Sub

Private Sub SetGoogleJavaScript()

Dim js As New System.Text.StringBuilder

js.Append("<script language=""javascript"">" & vbCrLf)

js.Append("//<![CDATA[" & vbCrLf)

js.Append("var map = new GMap2(document.getElementById(""map""));" & vbCrLf)

js.Append("map.addControl(new GSmallMapControl());" & vbCrLf)

js.Append("map.addControl(new GMapTypeControl());" & vbCrLf)

js.Append("map.setCenter(new GLatLng(37.4419, -122.1419));" & vbCrLf) <-- this is where it causes an error.. Am I missing some quotes or something?

js.Append("//]]>" & vbCrLf)

js.Append("</script>" & vbCrLf)

GoogleJavaScript.Text = js.ToString

js = Nothing

End Sub

End Class

11/22/2006 3:29 AM

	Rodney Joyce
1661 posts
www.smart-thinker.com

Re: Creating a basic map

Sorry, I don't know enough to help you, but I have noticed all maps (on different sites and localhost) are causing my browser (IE and FF) to fail - I am not sure what the problem is but are you sure it's your code (maybe the Google API has changed recently?)

Thanks,
Rodney
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11/23/2006 8:02 AM

	Robert Stanionis
5 posts
www.atlantapd.org

Re: Creating a basic map

It is the code.. I was able to create a map that would display everything correctly when you clicked a button.

I also noticed in the above code if I do not have the SetCenter line in the code and ran the page when you click on one of the controls it would give an error of something not defined...I am not sure if it has something to do with SetCenter not being there...But it was my understanding that SetCenter was optional and was not needed to get the map running.

When I get back from Thanksgiving break I will test this with the button method that I know works.

11/28/2006 2:05 PM

	Robert Stanionis
5 posts
www.atlantapd.org

Re: Creating a basic map

I got it working!

It is mostly the fault of IE.

If you want a basic google map v2 api here are the source files.

5/29/2007 11:24 AM

	Andrew Hawes
57 posts
www.fish4him.net

Re: Creating a basic map

Mobious, have you made any updates to this code since you created it? I am trying to do the same think and just want to see what the latest is. Thanks for your work.

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