protected void AddBtn_Click(object sender, EventArgs e)
        {
            if (!String.IsNullOrEmpty(NameBox.Text) &&
                !String.IsNullOrEmpty(DescriptionTextBox.Text) &&
                !String.IsNullOrEmpty(CompletionTextBox.Text) &&
                !String.IsNullOrEmpty(FilePath.Value))
            {
                AchievementHandler ah       = new AchievementHandler();
                string             ImageUrl = FilePath.Value;


                ah.AddAchievement(NameBox.Text, Convert.ToInt32(CustomersDDL.SelectedValue), DescriptionTextBox.Text, CompletionTextBox.Text, ImageUrl, Convert.ToInt32(CourseDDL.SelectedValue));

                CurrentAchievements.DataBind();
            }
            else
            {
                Page.ClientScript.RegisterStartupScript(this.GetType(), "myalert", "alert('Du skal udfylde alle felterne og vælge et billede til din achievement for at kunne oprette den.');", true);
            }
        }
 protected void CustomersDDL_SelectedIndexChanged(object sender, Telerik.Web.UI.DropDownListEventArgs e)
 {
     CourseDDL.DataBind();
     CurrentAchievements.DataBind();
 }