adding and maintaining named strings in a seperate class file in asp.net
I have developed an asp.net web application containing 40-50 pages. I have implemented logger using Log4net and each of my pages has this in its page_load event

    protected void Page_Load(object sender, EventArgs e)
        {
            try
            {
                log.Debug("In Page Load Function");
                if (!IsPostBack)
                {
                    if (Session["OrgId"] != null)
                    {
                       // my logic
                    }
                    else
                    {
                        Response.Redirect("Homepage.aspx?Sid=1", false);
                    }
                    log.Debug("Page load function successfull");
                }
            }
            catch (Exception ex)
            {
                log.Error(ex.Message, ex);
            }
        }

This method has many strings like `"In page Load function","OrgId","Homepage.aspx?Sid=1","Page load function successfull"`.  Now i would like to maintain these string which are common throughout my application in a seperate class file and use it with a variable... 

Can you suggest what class can be used for this or your way of handling this.  
adding and maintaining named strings in a seperate class file in asp.net
===

I have developed an asp.net web application containing 40-50 pages. I have implemented logger using Log4net and each of my pages has this in its page_load event

    protected void Page_Load(object sender, EventArgs e)
        {
            try
            {
                log.Debug("In Page Load Function");
                if (!IsPostBack)
                {
                    if (Session["OrgId"] != null)
                    {
                       // my logic
                    }
                    else
                    {
                        Response.Redirect("Homepage.aspx?Sid=1", false);
                    }
                    log.Debug("Page load function successfull");
                }
            }
            catch (Exception ex)
            {
                log.Error(ex.Message, ex);
            }
        }

This method has many strings like `"In page Load function","OrgId","Homepage.aspx?Sid=1","Page load function successfull"`.  Now i would like to maintain these string which are common throughout my application in a seperate class file and use it with a variable... 

Can you suggest what class can be used for this or your way of handling this.  