Hi,

i'm trying to populate my XamDataGrid with pictures stored from  a database(SqlServer) and the datatype is "varbinary(MAX)" ,but till now i cannot work out this operation.

I use a Converter as follow:

 public class ImageDataConverter : IValueConverter
    {
        public object Convert(object value, Type targetType, object parameter,
        System.Globalization.CultureInfo culture)
        {
            byte[] image = ((System.Data.Linq.Binary)value).ToArray();
            return image;
        }

        public object ConvertBack(object value, Type targetType, object parameter,
        System.Globalization.CultureInfo culture)
        {
            throw new NotSupportedException();
        }
    }

to convert Byte  and in my Xaml i use this one:

 <Grid>
        <Grid.Resources>
            <local:ImageDataConverter x:Key="imageConverter"/>

            <Style TargetType="{x:Type igDP:CellValuePresenter}" x:Key="Picture">
                <Setter Property="Template">
                    <Setter.Value>
                        <ControlTemplate TargetType="{x:Type igDP:CellValuePresenter}">
                            <Grid Width="{TemplateBinding Width}" Height="{TemplateBinding Height}">
                                <Image
                      Margin="{TemplateBinding Padding}"
                      HorizontalAlignment="{TemplateBinding HorizontalContentAlignment}"
                      VerticalAlignment="{TemplateBinding VerticalContentAlignment}"
                      Source="{Binding RelativeSource={RelativeSource TemplatedParent}, Path=Content}"/>
                            </Grid>
                        </ControlTemplate>
                    </Setter.Value>
                </Setter>
            </Style>

</Grid.Resources>
        <igDP:XamDataGrid x:Name="XamDataGrid1" Theme="Office2k7Black" DataSource="{Binding}">
            <igDP:XamDataGrid.FieldLayoutSettings>
                <igDP:FieldLayoutSettings AutoGenerateFields="False"/>
            </igDP:XamDataGrid.FieldLayoutSettings>

            <igDP:XamDataGrid.FieldLayouts>

                <igDP:FieldLayout>

                    <igDP:FieldLayout.Fields>
                        <igDP:Field  Converter="{StaticResource imageConverter}"   Name="Pic" Label="Pic">
                            <igDP:Field.Settings>
                                <igDP:FieldSettings CellMinWidth="100" CellMaxHeight="100" CellMinHeight="100" CellMaxWidth="100" CellWidth="100"
                      CellValuePresenterStyle="{StaticResource Picture}" />
                            </igDP:Field.Settings>
                        </igDP:Field>
                        <igDP:Field Name="ID" Label="ID"></igDP:Field>
                        <igDP:Field Name="Note" Label="Note"></igDP:Field>
                    </igDP:FieldLayout.Fields>
                </igDP:FieldLayout>

            </igDP:XamDataGrid.FieldLayouts>
        </igDP:XamDataGrid>
       
    </Grid>

in the code behind instead:

 private DataClasses1DataContext dc;
        public DataGridShow()
        {
            InitializeComponent();
            dc = new DataClasses1DataContext();
            var query = from c in dc.Tabolos select new {c.Pic, c.ID, c.Note};
            this.XamDataGrid1.DataContext = query.ToList();
            dc.SubmitChanges();
        }...

when i debug i receive an error in this line of the Converter Class:

  byte[] image = ((System.Data.Linq.Binary)value).ToArray(); //Object reference not set to an instance of an object.

Do you know how i can work out this feature ,or can you help me where i wrong?

Thanks so much for your attention.

Have a happy time.