Transform lz77 decompression from JAVASCRIPT to C#

i am a students, i am transform a code about lz77 decompression in c# from JSCRIPT
this is my c# code

public class lz77DeCompression
{
    private char ReferencePrefix;
    private int ReferencePrefixCode;
    private int ReferenceIntBase;
    private int ReferenceIntFloorCode;
    private int ReferenceIntCeilCode;
    private int MaxStringDistance;
    private int MinStringLength;
    private int MaxStringLength;
    private int MaxWindowLength;

    public lz77DeCompression()
    {
        this.ReferencePrefix ='`';
        this.ReferencePrefixCode = (int)this.ReferencePrefix;
        this.ReferenceIntBase = 96;
        this.ReferenceIntFloorCode =(int)' ';
        this.ReferenceIntCeilCode = this.ReferenceIntFloorCode + this.ReferenceIntBase -1;
        this.MaxStringDistance = (int)Math.Pow(this.ReferenceIntBase ,2)-1;
        this.MinStringLength = 5;
        this.MaxStringLength = (int)Math.Pow(this.ReferenceIntBase, 1) - 1 + this.MinStringLength;
        this.MaxWindowLength = this.MaxStringDistance + this.MinStringLength;
    }
   
    private int decodeReferenceInt(string words, int width)
    {
       int value;
       int i;
       int charcode;
       value = 0;
      
       for (i = 0; i < width;i++ )
       {
           value *= this.ReferenceIntBase;
           charcode = (int)words[i];
         
               if ((charcode >= this.ReferenceIntFloorCode) && (charcode <= this.ReferenceIntCeilCode))
               {
                   value += charcode - this.ReferenceIntFloorCode;
               }
      
       
          /* else
           {
               Response.Write ( "