multipleparams.cs

string[] paramsStr=new string[4];
paramsStr[0]=ctrl1.ClientID;
paramsStr[1]=ctrl2.ClientID;
paramsStr[2]=ctrl3.ClientID;
paramsStr[3]=ctrl4.ClientID;

string script=string.Format(@"function IDIssue() {
            var ctrl1=document.getElementById('{0}'); 
            var ctrl2=document.getElementById('{1}'); 
            var ctrl3=document.getElementById('{2}'); 
            var ctrl4=document.getElementById('{3}');
            // add necessary implemenation here 
            
            }",
            paramsStr
   );