Determine what fields to save in Windows Azure Table Storage - azure-storage

Question

I'm trying to store an entity called Tshirt into a Windows Azure table storage along with a Blob on Windows Azure Blob storage.
That entity Tshirt contains a field called Image (byte[]) but I don't want to save that in my table.
How can I indicate in my class that I don't want to save that field?
public class Tshirt : TableServiceEntity
{
public Tshirt(string partitionKey, string rowKey, string name)
{
this.PartitionKey = partitionKey;
this.RowKey = rowKey;
this.Name = name;
this.ImageName = new Guid();
}
private string _name;
public string Name
{
get { return _name; }
set { _name = value; }
}
private string _color { get; set; }
public string Color
{
get { return _color; }
set { _color = value; }
}
private int _amount { get; set; }
public int Amount
{
get { return _amount; }
set { _amount = value; }
}
[NonSerialized]
private byte[] _image;
public byte[] Image
{
get { return _image; }
set { _image = value; }
}
private Guid _imageName;
public Guid ImageName
{
get { return _imageName; }
set { _imageName = value; }
}
}

Answer 1

The easy way is to expose the field as a pair of methods rather than an actual property:
public byte[] GetImage()
{
return _image;
}
public void SetImage(byte[] image)
{
_image = image;
}
If that's not an option, then you can remove the Image property when you're storing the entity by handling the WritingEntity event. (Credit to Neil Mackenzie)
public void AddTshirt(Tshirt tshirt)
{
var context = new TableServiceContext(_baseAddress, _credentials);
context.WritingEntity += new EventHandler<ReadingWritingEntityEventArgs>(RemoveImage);
context.AddObject("Tshirt", tshirt);
context.SaveChanges();
}
private void RemoveImage(object sender, ReadingWritingEntityEventArgs args)
{
XNamespace d = "http://schemas.microsoft.com/ado/2007/08/dataservices";
XElement imageElement = args.Data.Descendants(d + "Image").First();
imageElement.Remove();
}