I've got a hierarchical treeview and would like to display some images on the nodes.
I've got a imageconverter:
public
class ImageConverter : IValueConverter
{
public static object ByteToBitmap(byte[] byteImg)
{
using (MemoryStream ms = new MemoryStream(byteImg, 0, byteImg.Length))
{
//Convert byte[] to image
Image image = new Image();
BitmapImage bitmapimage = new BitmapImage();
MemoryStream stream = new MemoryStream(byteImg);
bitmapimage.SetSource(stream);
return bitmapimage;
}
}
public object Convert(object value, Type targetType, object parameter, CultureInfo culture)
{
byte[] byteImg = (byte[])value;
//Convert byte to image
return ByteToBitmap(byteImg);
}
Part of the xaml file:
<telerik:HierarchicalDataTemplate x:Key="CustomerTemplate" ItemsSource="{Binding Teams}" ItemTemplate="{StaticResource OrderTemplate}">
<StackPanel Orientation="Horizontal">
<TextBlock Text="DayID: "/>
<TextBlock Text="{Binding Date}"/>
<Image Source="{Binding Image, Converter={StaticResource ImageConverter}}" />
</StackPanel>
</telerik:HierarchicalDataTemplate>
The images are stored as "Image" in the SQL database.
I get an object reference on the following line of code:
using (MemoryStream ms = new MemoryStream(byteImg, 0, byteImg.Length))
I can't find a solution to retrieve and bind the images that are stored in my database.
Any help would be appreciated!
1 Answer, 1 is accepted
Please find the solution I prepared for you. Basically it uses Ado.Net entity data model and retrieves Employees photo from the MS SQL Express NorthWind database. The solution is based on this article although the project in it uses WCF Ria services.
Check it out and let us know if it gives you a starting point or if it doesn`t help you, it would be best if you can send us your code so that we could investigate in depth.
All the best,
Petar Mladenov
the Telerik team