Google map API marker information on-click

Hello everyone, I need help integrating the pop info box ( Marker click) into my map page. I know that I need something like:

var infowindow = new google.maps.InfoWindow({
            content: "Test me"
        });

        google.maps.event.addListener(marker, 'click', function () {
            infowindow.open(map, marker);
        });

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And my map page code is:

<asp:Content ID="Content3" ContentPlaceHolderID="MainContent" runat="server">
    <!DOCTYPE html>
<html xmlns="http://www.w3.org/1999/xhtml" > 
     <script type="text/javascript"
     src="https://maps.googleapis.com/maps/api/js?key=Secret_code_here=false">
     </script>
<body onload="initialize()">

          <div id="mapArea" style="width: 500px; height: 500px;">
          </div> 
          <asp:Literal ID="Literal1" runat="server"></asp:Literal>
</body>
</html>
</asp:Content>

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How do I integrate the two codes to play nice with each other? As you can tell, I have 0 experience in this :-)

Thank you a bunch.

JavaScript

Last Comment

Cobra967

8/22/2022 - Mon

SOLUTION

Abhijeet Rananaware

8/16/2016

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Cobra967

8/16/2016

ASKER

Thank you Abhijeet, your example works by it self but not by using my data. Literal1 actually populate all my points on google map. My data come from a SQL Connection from I table that has just 3 fields: Lat, Lng and RecordID. The main goal is to show the recordID when clicking on the map pushpin. Probably it will help if I include the VB code associated with this page:

Imports System.Data
Imports System.Configuration
Imports System.Data.SqlClient

Public Class MyMap
    Inherits System.Web.UI.Page

    Protected Sub Page_Load(ByVal sender As Object, ByVal e As System.EventArgs) Handles Me.Load
        Dim markers As String = ""
        markers = GetMarkers()
        Literal1.Text = "<script type='text/javascript'>" +
     "function initialize() {" +
     "var mapOptions = {" +
     "center: new google.maps.LatLng(35.372278, -80.633568)," +
     "zoom: 9," +
     "mapTypeId : google.maps.MapTypeId.ROADMAP" +
     "};" +
     "var myMap = new google.maps.Map(document.getElementById('mapArea'), mapOptions);" +
     markers +
     "}" +
     "</script>"


    End Sub

    Protected Function GetMarkers() As String
        Dim markers As String = ""

        Using con As New SqlConnection(ConfigurationManager.ConnectionStrings("DefaultConnection").ConnectionString)
            Dim cmd As SqlCommand = New SqlCommand("SELECT Lat, Lng, RecordID FROM MyData", con)
            con.Open()
            Dim reader As SqlDataReader = cmd.ExecuteReader()
            Dim i As Integer = 0
            While reader.Read()
                i = i + 1
                markers = markers + "var marker" + i.ToString() + "= new google.maps.Marker({" +
               "position: new google.maps.LatLng( " + reader("Lat").ToString() + ", " +
               reader("Lng").ToString() + ")," +
               "Label:'" + reader("RecordID").ToString() + "', " +
               "map: myMap," +
               "title:'" + reader("RecordID").ToString() + "'});"

            End While
            con.Close()
        End Using
        Return markers
    End Function

End Class