private void LoadPetCategory()
        {
            List<CTPetCategory> petcategoryList = new List<CTPetCategory>();
            PetCategory petcategory = new PetCategory();
            petcategoryList = petcategory.GetPetCategoryList();
            ddlPetCategory.DataSource = petcategoryList;
            ddlPetCategory.DataTextField = "petCategoryName";
            ddlPetCategory.DataValueField = "petCategoryID";
            ddlPetCategory.DataBind();
            ddlPetCategory.Items.Insert(0, new ListItem("", ""));

            ddlCategoryAdd.DataSource = petcategoryList;
            ddlCategoryAdd.DataTextField = "petCategoryName";
            ddlCategoryAdd.DataValueField = "petCategoryID";
            ddlCategoryAdd.DataBind();
        }
        private void LoadData()
        {
            List<CTPetCategory> list = new List<CTPetCategory>();

            PetCategory petcategory = new PetCategory();
            list=petcategory.GetPetCategoryList();
            GridView1.DataSource = list;
            GridView1.DataKeyNames = new string[] { "petCategoryID" };
            GridView1.DataBind();
        }