ActivEarth.Groups.EditGroup.Page_Load C# (CSharp) Method

        protected void Page_Load(object sender, EventArgs e)
        {
            if(Session["userDetails"] == null)
            {
                Response.Redirect("~/Account/Login.aspx");
            }
            else if (Request.QueryString["ID"] == null)
            {
                Response.Redirect("~/Groups/Groups.aspx");
            }
            else
            {
                int groupID = Convert.ToInt32(Request.QueryString["ID"]);
                Group currentGroup = GroupDAO.GetGroupFromGroupId(groupID);

                if (currentGroup == null || currentGroup.Owner.UserID != ((User)Session["userDetails"]).UserID)
                {
                    Response.Redirect("~/Groups/Groups.aspx");
                }

                if (txbGroupName.Text == "")
                {
                    txbGroupName.Text = currentGroup.Name;
                }
                if (txbDescription.Text == "")
                {
                    txbDescription.Text = currentGroup.Description;
                }
                if (lblAllHashTags.Text == "")
                {
                    lblAllHashTags.Text = "[]";
                    foreach (string tag in currentGroup.HashTags)
                    {
                        txbHashTag.Text = tag;
                        AddHashTag(null, null);
                    }
                }

            }
        }