public override object Deserialize(Cell _data, ConversionContext _context = null)
{
object data = base.Deserialize(_data);
DropdownButton ddButton;
if (data == null) {
ddButton = new DropdownButton();
}
else {
ddButton = data as DropdownButton;
}
if (_context == null ||
_context.Field == null ||
_context.Field.Metadata == null) {
return ddButton;
}
if (!_context.Field.Metadata.IsLoaded) {
_context.Field.Metadata.Load();
}
var metadata = _context.Field.Metadata.FirstOrDefault(m => m.Key == ModuleRepository.DropdownButtonMetadataKey);
if (metadata != null &&
!String.IsNullOrWhiteSpace(metadata.Value)) {
var json = new JavaScriptSerializer();
var items = json.Deserialize<string[]>(metadata.Value);
if (items != null) {
foreach (var i in items) {
if (!String.IsNullOrWhiteSpace(i)) {
// avoid adding empty entries to the dictionary
ddButton.ValidValues.Add(i.EscapeName(), i);
}
}
}
}
return ddButton;
}
public void Test_Deserialize_DropdownButton_Null()
{
// Arrange
var value = new DropdownButton { SelectedValue = null };
object retData = SerializeAndDeserialize(value);
// Assert
Assert.IsNotNull(retData);
Assert.IsInstanceOfType(retData, typeof(DropdownButton));
DropdownButton result = (DropdownButton)retData;
Assert.IsNull(result.SelectedValue);
}