public static bool TryGetWrappedData(this IDataObject data, string dataFormat, DataObjectStorage storage, out IEnumerable <object> wrappedData)
{
// Retrieve wrapped data of the specified format and storage type
string wrappedFormat = GetWrappedDataFormat(dataFormat, storage);
SerializableWrapper wrapper = data.GetData(wrappedFormat) as SerializableWrapper;
if (wrapper != null && wrapper.Data != null && wrapper.Data.Count > 0)
{
wrappedData = wrapper.Data;
return(true);
}
// If retrieving by-value failed, try retrieving by-reference and cloning the result
if (storage == DataObjectStorage.Value)
{
IEnumerable <object> byReferenceData;
if (data.TryGetWrappedData(dataFormat, DataObjectStorage.Reference, out byReferenceData))
{
wrappedData = byReferenceData.Select(obj => obj.DeepClone()).ToArray();
return(true);
}
}
wrappedData = null;
return(false);
}
/// <summary>
/// Retrieves the specified non-<see cref="SerializableAttribute"/> data from the specified data object using a serializable wrapper.
/// </summary>
/// <param name="data"></param>
/// <param name="format"></param>
/// <returns></returns>
public static object GetWrappedData(this IDataObject data, string format)
{
SerializableWrapper wrapper = data.GetData(WrapperPrefix + format) as SerializableWrapper;
if (wrapper != null)
{
return(wrapper.Data);
}
else
{
return(null);
}
}
/// <summary>
/// Stores the specified non-<see cref="SerializableAttribute"/> data inside the specified data object using a serializable wrapper.
/// </summary>
/// <param name="dataFormat">The format of the data being stored</param>
/// <param name="storage">The type of data being stored</param>
public static void SetWrappedData(this IDataObject data, IEnumerable <object> values, string dataFormat, DataObjectStorage storage)
{
object[] valuesArr = values.ToArray();
string wrappedFormat = GetWrappedDataFormat(dataFormat, storage);
SerializableWrapper wrapper = storage == DataObjectStorage.Reference
? new SerializableReferenceWrapper(valuesArr)
: new SerializableWrapper(valuesArr);
data.SetData(wrappedFormat, wrapper);
// Reference data is automatically stored as a value as well
if (storage == DataObjectStorage.Reference)
{
data.SetWrappedData(valuesArr, dataFormat, DataObjectStorage.Value);
}
}