public VariableParameterControl this[FirstStageVariableParameterType firstStageVariableParameterType]
 {
     get
     {
         return(FirstStageVariableParameterControl[firstStageVariableParameterType]);
     }
     set
     {
         FirstStageVariableParameterControl[firstStageVariableParameterType] = value;
     }
 }
 public void Add(FirstStageVariableParameterType firstStageVariableParameterType, VariableParameterControl variableParameterControl)
 {
     FirstStageVariableParameterControl.Add(firstStageVariableParameterType, variableParameterControl);
 }