Display Image dynamically

10-16-2008 12:21 AM |

Is it possible to display images in a silverlight application say from an adpater class or an external dll? This class / dll would actually provide the images, which Silverlight would convert into bmp/ jpeg or something & then display

Re: Display Image dynamically

10-16-2008 3:21 AM |

Hi, I think just Binding the image control's Source to the string of uri is ok, it is like:

<Grid x:Name="MyGrid">
<Image Source="{Binding URL"}/>
</Grid>

 and in you code behind, create a simple data class like:
public class Data:INotifyPropertyChanged
{
            private string m_URL;
            public string URL
            {
                   get{  return m_URL; }
                   set
                   {
                        m_URL=value;
                        OnPropertyChanged("URL");
                   }
            }
            #region INotifyPropertyChanged Members

            public event PropertyChangedEventHandler PropertyChanged;
            protected virtual void OnPropertyChanged(string propertyName)
            {
                if (PropertyChanged != null)
                    PropertyChanged(this, new PropertyChangedEventArgs(propertyName));
            }

            #endregion
}

then, if your code-behind,
Data data=new Data();
data.URL="http://xxxxx.com/xxx.png";//or "images/xxx.png";
MyGrid.DataContext= data;

DataBinding will help you set the image source, and because the INotifyPropertyChanged interface, when you change data.URL property, the image's source will change too.

Hope it help! Regards.

Re: Display Image dynamically

10-16-2008 6:32 AM |

Thanks for the reply. But is it possible that the class itself returns an image & can that be bound in Silverlight application?