public VariableParameterControl this[SecondStageVariableParameterType secondStageVariableParameterType]
 {
     get
     {
         return(SecondStageVariableParameterControl[secondStageVariableParameterType]);
     }
     set
     {
         SecondStageVariableParameterControl[secondStageVariableParameterType] = value;
     }
 }
 public void Add(SecondStageVariableParameterType secondStageVariableParameterType, VariableParameterControl variableParameterControl)
 {
     SecondStageVariableParameterControl.Add(secondStageVariableParameterType, variableParameterControl);
 }