Hi matt.

i think your control works correctly.
because post back process reload your web form page.

any elements of html form has a default values when the page is reloaded.
post back is same.

any web form controls in .net base class library, use a ViewState object to keep there values.
so your control have to use ViewState object too.

sample code is here:

public string JsDirectory {
   get {
       if (Page.EnableViewState) {
           if ((Page.ViewState["jsdir"] != null) && (Page.ViewState["jsdir"] != string.Empty))
               return Page.ViewState["jsdir"];
           else
               return m_strJsDir;
       }
       else
           return m_strJsDir;
   }//end of get

   set {
       if (Page.EnableViewState) {
           if (Page.ViewState["jsdir"] != null)
               Page.ViewState["jsdir"] = value;
           else
               Page.ViewState.Add("jsdir", value);
           m_strJsDir = value;
       }
       else
           m_strJsDir = value;
   }
}//end of property JsDirectory

private void Class1() {
   if (Page.EnableViewState) {
       if ((Page.ViewState["jsdir"] != null) && (Page.ViewState["jsdir"] != string.Empty))
           m_strJsDir = Page.ViewState["jsdir"];
       else
           m_strJsDir = "/g_Scripts/";
   }
   else
       m_strJsDir = "/g_Scripts/";
}//end of constructor

- webgenie
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