/// <summary>
/// Reads the JSON representation of the object.
/// </summary>
/// <param name="reader">The <see cref="JsonReader"/> to read from.</param>
/// <param name="objectType">Type of the object.</param>
/// <param name="existingValue">The existing value of object being read.</param>
/// <param name="serializer">The calling serializer.</param>
/// <returns>The object value.</returns>
public override object ReadJson(JsonReader reader, Type objectType, object existingValue, JsonSerializer serializer)
{
if (reader.TokenType == JsonToken.Null)
{
return null;
}
// handle typed datasets
DataSet ds = (objectType == typeof(DataSet))
? new DataSet()
: (DataSet)Activator.CreateInstance(objectType);
DataTableConverter converter = new DataTableConverter();
reader.ReadAndAssert();
while (reader.TokenType == JsonToken.PropertyName)
{
DataTable dt = ds.Tables[(string)reader.Value];
bool exists = (dt != null);
dt = (DataTable)converter.ReadJson(reader, typeof(DataTable), dt, serializer);
if (!exists)
{
ds.Tables.Add(dt);
}
reader.ReadAndAssert();
}
return ds;
}
