Drag&Drop WPF

[Bert1974]

To allow drag&drop files from explorer i had to handle Uri[] also in ToDataObject

namespace Xwt.WPFBackend
{
internal static class DataConverter
{
public static DataObject ToDataObject (this TransferDataSource data)
{
var retval = new DataObject ();
foreach (var type in data.DataTypes) {
var value = data.GetValue (type);

			if (type == TransferDataType.Text)
				retval.SetText ((string)value);
			else if (type == TransferDataType.Uri) {
				var uris = new StringCollection ();

<<<<<<<<<<<
if (value is Uri[]) {
foreach (var uri in value as Uri[])
uris.Add(uri.LocalPath);
}
else
<<<<<<<<<<<<
uris.Add (((Uri)value).LocalPath);
retval.SetFileDropList (uris);
} else
retval.SetData (type.Id, TransferDataSource.SerializeValue (value));
}

		return retval;
	}