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Wade Beasley
350
Grid Cell Image Convertor from byte array
posted

We are trying to Display an image in one cell of our grid from an image loaded from a database.  The data access layer is returning the image column as a byte array.   The image type is png in the db.  Does someone have a sample of the xaml and the convertor code to do this?

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  • 20
    posted in reply to Wade Beasley

    Use sample from Infragistics help: Displaying an Image in a Field and add this:

    1. in XAML

    xmlns:local="clr-namespace:yourapplicationnamespace"

    <Grid.Resources>

    <local:ImageConverter x:Key="ImageConverter" />

    ...

    <igDP:Field Name="photo" Converter="{StaticResource ImageConverter}" >

    2. in Code behavior:

    [ValueConversion(typeof(byte[), typeof(ImageSource))]

    public class ImageConverter : IValueConverter

    {

    public object Convert(object value, Type targetType, object parameter, System.Globalization.CultureInfo culture)

    {

    if (value == null) return null;

    MemoryStream str = new MemoryStream(((byte[)value));

    BitmapImage img = new BitmapImage();

    img.BeginInit();

    img.StreamSource = str;

    img.EndInit();

    return img;

    }

    public object ConvertBack(object value, Type targetType, object parameter, System.Globalization.CultureInfo culture)

    {

    return null;

    }

    }