C # Merge multiple spaces in the string into one

        Public   Static   String Combineinsidespaces ( String  Orinstr) {list < Int > Poses = New List < Int > ();  For ( Int I = 0 ; I <= orinstr. Length- 1 ; I ++ ){//  Obtain all spaces                  If (Orinstr [I] = '   '  ) {Poses. Add (I );}}  For ( Int I = poses. Count- 1 ; I> 0 ; I --){ //  Traverse each space position and check whether the front is blank                  VaR Cur =Poses [I];  VaR Prev = poses [I- 1  ];  If (Prev = cur- 1  ) {Orinstr = Orinstr. Remove (cur, 1  );}}  Return  Orinstr ;}