private void CheckDuplicateCategory()
        {
            Category category = new Category()
            {
                CategoryName = categoryName
            };
            bool check = categoryManage.CheckDuplecateCategory(category);

            if (!check)
            {
                MessageBox.Show("Already Exists This Category");
            }
            else
            {
                Saved(category);
                categoryTextBox.Clear();
            }
        }