passing variable value to method in .cs

I would like to set

errormessage and retrieve it in my method QWE()
It doesnt work. What am I doing wrong?
 

public class AppLogic{string errormessage ="We are sorry, DB Error try again later";public static void QWE() { HttpContext.Current.Response.Write("<script type=text/javascript language=javascript>alert('" + errormessage +"');</script>"); }}

Can you give an example of the return? What is the result/output of running this?

I would like to set

errormessage
string errormessage ="We are sorry, DB Error try again later";
and retrieve it in my method QWE()
('" + errormessage +"')
It doesnt work. What am I doing wrong?
 

public class AppLogic
{
string errormessage ="We are sorry, DB Error try again later";
public static void QWE()
 {
 HttpContext.Current.Response.Write("<script type=text/javascript language=javascript>alert('" + errormessage +"');</script>");
 }