Grid View for ASP.NET Web Forms - How to use ASPxBinaryImage to bind a field that contains image data stored as OLE objects

If your data source contains images in a custom format (for instance, OLE Objects), the ASPxGridView control cannot bind data automatically. Follow the steps below to display the images in the grid:

1. Create DataItemTemplate for an image column.
2. Place the ASPxBinaryImage control in the template.
3. Write a function to transform images from your format to an array of bytes.
4. Use a custom binding expression to bind the ASPxBinaryImage.Value property to the transformed data.

<dx:GridViewDataTextColumn Caption="Image" FieldName="Image" >
    <DataItemTemplate>
        <dx:ASPxBinaryImage ID="ASPxBinaryImage1" runat="server" 
            Value='<%# ConvertOleObjectToByteArray(Eval("Image")) %>' />
    </DataItemTemplate>
</dx:GridViewDataTextColumn>

Files to Review

• Default.aspx (VB: Default.aspx)
• Default.aspx.cs (VB: Default.aspx.vb)

Online Demo

• Grid -- Binary Image Column Editing

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