Question

public static string SEARCH_STRING = "searchkey";
string key=Request.QueryString.Get(SEARCH_STRING);    

How to change the above code to make SEARCH_STRING be accessed using a Property(get; set;) instead of a public variable

Answer 1

If this variable will not be changed, it is better to use constant

public const string SEARCH_STRING = "searchkey";

and here is how you can make it property

private static string _searchString = "searchkey";
public static string SEARCH_STRING { 
  get { return _searchString; }
  private set { _searchString = value; }
}