Exception (Unable To Connect To SQL Server Database).

hi... i am new to ASP2.0 and i was trying to use the properties associated with the profile class.

here what i was trying to do...

in "Web.config"

<anonymousIdentification enabled="true"/>

     <profile enabled ="true">

         <properties>

            <add name="p1" allowAnonymous ="true"/>

          </properties>  

   </profile>

in "Default.aspx.cs"

protected void Page_Load(object sender, EventArgs e)

{

   if (!Page.IsPostBack) {

       Profile.p1 = "Welcome";

      LabelResult.Text = Profile.p1;

   }

   else{

      Profile.p1 = "you'v been here";

      LabelResult.Text = Profile.p1;

   }

}

but i had the exception ( Unable to connect to SQL Server database) at  "App_Code.qzomymsu.0.cs"

public virtual string p1 {

get {

      return ((string)(this.GetPropertyValue("p1")));

}

set {

      this.SetPropertyValue("p1", value);

}

}

i know the problem has something to do with providers, and i want to store the values to an XML file.... thank you for helping.