Google Maps mit KML in C# WebBrowser

-1

Ich möchte ein Windows Form erstellen, das einen C# -WebBrowser enthält, der eine Google Map mit KML anzeigt. Das Problem ist, dass nach dem Ausführen meines Codes nichts auf dem WebBrowser angezeigt wird. Ich brauche das für mein Projekt.Google Maps mit KML in C# WebBrowser

Hier ist mein Code:

namespace WindowsFormsApplication1 
{ 
    public partial class Form1 : Form 
    { 
     public Form1() 
     { 
      InitializeComponent(); 
     } 

     private void Form1_Load(object sender, EventArgs e) 
     { 
      webBrowser123.DocumentText = 
    "<!DOCTYPE html>" + 
"<html>" + 
    "<head>" + 
    "<meta name=\"viewport\" content=\"initial-scale=1.0\">" + 
    "<meta charset=\"utf-8\">" + 
    "<title>KML Layers</title>" + 
    "<style>" + 
       /* Always set the map height explicitly to define the size of the div 
       * element that contains the map. */ 
     "#map {" + 
     " height: 100%;" + 
     "}" + 
       /* Optional: Makes the sample page fill the window. */ 
     "html, body {" + 
     "height: 100%;" + 
     "margin: 0;" + 
     "padding: 0;" + 
    " }" + 
    "</style>" + 
    "</head>" + 
    "<body>" + 
    " <div id=\"map\"></div>" + 
    "<script>" + 

     "function initMap() {" + 
     " var map = new google.maps.Map(document.getElementById('map'), {" + 
     " zoom: 11," + 
      "center: {lat: 41.876, lng: -87.624}" + 
     " });" + 

     " var ctaLayer = new google.maps.KmlLayer({" + 
     " url: 'http://googlemaps.github.io/js-v2-samples/ggeoxml/cta.kml'," + 
     " map: map" + 
     " });" + 
    " }" + 
    "</script>" + 
    "<script async defer" + 
    "src=\"https://maps.googleapis.com/maps/api/js?key=AIzaSyAsLmzxet8OI2SHDZ78c3MJdTP1ODoFjZg&callback=initMap\">" + 
    "</script>" + 
    "</body>" + 
"</html>"; 
    //  webBrowser.DocumentText = 
    //"<html><body>Please enter your name:<br/>" + 
    //"<input type='text' name='userName'/><br/>" + 
    //"<a href='http://www.microsoft.com'>continue</a>" + 
    //"</body></html>"; 
     } 
    } 
}

Quelle

2017-06-17 Stephan Miller

ich meine HTML-Code mit http://www.buildmystring.com/ umgewandelt und jetzt alles funktioniert. Hier ist mein Arbeitscode, wenn jemand es braucht:

  private void Form1_Load(object sender, EventArgs e) 
     { 


      label1.Text = "Width:" + webBrowser123.Width + " Height: " + webBrowser123.Height; 
      // BuildMyString.com generated code. Please enjoy your string responsibly. 

StringBuilder sb = new StringBuilder(); 

sb.Append("<!DOCTYPE html>"); 
sb.Append("<html>"); 
sb.Append(" <head>"); 
sb.Append(" <meta name=\"viewport\" content=\"initial-scale=1.0\">"); 
sb.Append(" <meta http-equiv=\"X-UA-Compatible\" content=\"IE=edge\">"); 
sb.Append(" <meta charset=\"utf-8\">"); 
sb.Append(" <title>KML Layers</title>"); 
sb.Append(" <style>"); 
sb.Append("  /* Always set the map height explicitly to define the size of the div"); 
sb.Append("  * element that contains the map. */"); 
sb.Append("  #map {"); 
sb.Append("  height: 100%;"); 
sb.Append("  }"); 
sb.Append("  /* Optional: Makes the sample page fill the window. */"); 
sb.Append("  html, body {"); 
sb.Append("  height: 100%;"); 
sb.Append("  margin: 0;"); 
sb.Append("  padding: 0;"); 
sb.Append("  }"); 
sb.Append(" </style>"); 
sb.Append(" </head>"); 
sb.Append(" <body>"); 
sb.Append(" <div id=\"map\"></div>"); 
sb.Append(" <script>"); 
sb.Append(""); 
sb.Append("  function initMap() {"); 
sb.Append("  var map = new google.maps.Map(document.getElementById('map'), {"); 
sb.Append("   zoom: 11,"); 
sb.Append("   center: {lat: 41.876, lng: -87.624}"); 
sb.Append("  });"); 
sb.Append(""); 
sb.Append("  var ctaLayer = new google.maps.KmlLayer({"); 
sb.Append("   url: 'https://new.enfield.gov.uk/Cemeteries.kml',"); 
sb.Append("   map: map"); 
sb.Append("  });"); 
sb.Append("  }"); 
sb.Append(" </script>"); 
sb.Append(" <script async defer"); 
sb.Append(" src=\"https://maps.googleapis.com/maps/api/js?key=MYAPIKEY&callback=initMap&v=3.22\">"); 
sb.Append(" </script>"); 
sb.Append(" </body>"); 
sb.Append("</html>"); 



webBrowser123.DocumentText = sb.ToString(); 


     }

Quelle

2017-06-17 18:34:27

Google Maps mit KML in C# WebBrowser

Antwort

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