public object InvokeExpression(int expressionId, System.Collections.Generic.IList<System.Activities.Location> locations) {
     if ((this.rootActivity == null)) {
         this.rootActivity = this;
     }
     if ((expressionId == 0)) {
         Step_TypedDataContext2_ForReadOnly valDataContext0 = new Step_TypedDataContext2_ForReadOnly(locations, true);
         return valDataContext0.ValueType___Expr0Get();
     }
     if ((expressionId == 1)) {
         Step_TypedDataContext2 refDataContext1 = new Step_TypedDataContext2(locations, true);
         return refDataContext1.GetLocation<string>(refDataContext1.ValueType___Expr1Get, refDataContext1.ValueType___Expr1Set);
     }
     if ((expressionId == 2)) {
         Step_TypedDataContext2_ForReadOnly valDataContext2 = new Step_TypedDataContext2_ForReadOnly(locations, true);
         return valDataContext2.ValueType___Expr2Get();
     }
     if ((expressionId == 3)) {
         Step_TypedDataContext2 refDataContext3 = new Step_TypedDataContext2(locations, true);
         return refDataContext3.GetLocation<string>(refDataContext3.ValueType___Expr3Get, refDataContext3.ValueType___Expr3Set);
     }
     if ((expressionId == 4)) {
         Step_TypedDataContext2_ForReadOnly valDataContext4 = new Step_TypedDataContext2_ForReadOnly(locations, true);
         return valDataContext4.ValueType___Expr4Get();
     }
     if ((expressionId == 5)) {
         Step_TypedDataContext2 refDataContext5 = new Step_TypedDataContext2(locations, true);
         return refDataContext5.GetLocation<string>(refDataContext5.ValueType___Expr5Get, refDataContext5.ValueType___Expr5Set);
     }
     if ((expressionId == 6)) {
         Step_TypedDataContext2_ForReadOnly valDataContext6 = new Step_TypedDataContext2_ForReadOnly(locations, true);
         return valDataContext6.ValueType___Expr6Get();
     }
     if ((expressionId == 7)) {
         Step_TypedDataContext2_ForReadOnly valDataContext7 = new Step_TypedDataContext2_ForReadOnly(locations, true);
         return valDataContext7.ValueType___Expr7Get();
     }
     if ((expressionId == 8)) {
         Step_TypedDataContext2_ForReadOnly valDataContext8 = new Step_TypedDataContext2_ForReadOnly(locations, true);
         return valDataContext8.ValueType___Expr8Get();
     }
     if ((expressionId == 9)) {
         Step_TypedDataContext2_ForReadOnly valDataContext9 = new Step_TypedDataContext2_ForReadOnly(locations, true);
         return valDataContext9.ValueType___Expr9Get();
     }
     return null;
 }