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var ds = RemotingFactory.Create<IUIResourceController>().GetInputsByOperationId(_operationSuggestionLookup.ID);
var rows = ds.Tables[0].Select("InputSourceTypeID = 1");
var dataSet = new FunctionInputDataSet();
foreach(FunctionInputDataSet.FunctionInputRow row in rows)
{
     var prop = (UserInputProperties)Serializer.DeserializeFromXml(row.Properties, typeof (UserInputProperties));
     if (prop != null && prop.AllowExternalInput)
           dataSet.FunctionInput.AddFunctionInputRow(row);
}
_ultraGrid.DataSource = dataSet;