1 var chartData = new GoogleChartData
 2                     {
 3                         Size = new Size(400, 200),
 4                         Type = ChartType.Pie3d,
 5                         Labels = {"Silverlight", "Flex"},
 6                         Data = {"20", "80"},
 7                         Title = string.Format("RIA's{0}Compared", Environment.NewLine)
 8                     };
 9 
10 chartImage.SetValue(HeightProperty, chartData.Size.Height);
11 chartImage.SetValue(WidthProperty, chartData.Size.Width);
12 
13 chartImage.Source = googleChartBuilder.ConvertFrom(chartData);

 1 public class GoogleChartData
 2 {
 3     public GoogleChartData()
 4     {
 5         Data = new List<string>();
 6         Labels = new List<string>();
 7     }
 8 
 9     public IList<string> Data { get; set; }
10     public IList<string> Labels { get; set; }
11     public Size Size { get; set; }
12     public ChartType Type { get; set; }
13 
14     public string Title { get; set; }
15 }

 1 public class UriBuilder : IUriBuilder
 2 {
 3     public Uri Build(string baseUri, string page, IDictionary<string, string> queryString)
 4     {
 5         if(string.IsNullOrEmpty(baseUri) && string.IsNullOrEmpty(page))
 6             throw new Exception("baseUri and/or page should be provided.");
 7 
 8         UriKind kind;
 9         if (string.IsNullOrEmpty(baseUri))
10             kind = UriKind.Relative;
11         kind = UriKind.Absolute;
12 
13         var uriBuilder = new StringBuilder(string.Concat(baseUri,page));
14         if(queryString!=null && queryString.Count >0)
15         {
16             char separatorCharacter = '?';
17             foreach (var queryPart in queryString)
18             {
19                 uriBuilder.Append(separatorCharacter);
20                 uriBuilder.Append(queryPart.Key);
21                 uriBuilder.Append('=');
22                 uriBuilder.Append(HttpUtility.UrlEncode(queryPart.Value));
23 
24                 separatorCharacter = '&';
25             }
26         }
27         return new Uri(uriBuilder.ToString(), kind);
28     }
29 }

 1 public class GoogleChartBuilder : IGoogleChartBuilder
 2 {
 3     private readonly IUriBuilder uriBuilder;
 4 
 5     public GoogleChartBuilder(IUriBuilder uriBuilder)
 6     {
 7         this.uriBuilder = uriBuilder;
 8     }
 9 
10     public BitmapImage ConvertFrom(GoogleChartData googleChartData)
11     {
12         IDictionary<string,string> queryString = new Dictionary<string, string>();
13         
14         //ChartSize
15         queryString.Add("chs",string.Format("{0}x{1}",googleChartData.Size.Width,googleChartData.Size.Height));
16         
17         //ChartType
18         if(googleChartData.Type == ChartType.Pie3d)
19             queryString.Add("cht","p3");
20 
21         //Labels
22         if (googleChartData.Labels != null && googleChartData.Labels.Count > 0)
23             queryString.Add("chl",string.Join("|", googleChartData.Labels.ToArray()));
24 
25         //Data
26         if (googleChartData.Data != null && googleChartData.Data.Count > 0)
27             queryString.Add("chd", string.Concat("t:",string.Join(",", googleChartData.Data.ToArray())));
28         //Title
29         if(!string.IsNullOrEmpty(googleChartData.Title))
30             queryString.Add("chtt",googleChartData.Title.Replace(" ","+").Replace(Environment.NewLine,"|"));
31         return new BitmapImage(uriBuilder.Build("http://chart.apis.google.com/", "chart", queryString));
32     }
33 }