protected void saveButton_Click1(object sender, EventArgs e)
        {
            string intCheck = saveCategoryNameTextBox.Text;
            int    count = 0, z = 0;

            for (int i = 0; i < intCheck.Length; i++)
            {
                if ((intCheck[i] >= '0' && intCheck[i] <= '9'))
                {
                    count++;
                }
                if ((intCheck[i] >= 'a' && intCheck[i] <= 'z') || (intCheck[i] >= 'A' && intCheck[i] <= 'Z'))
                {
                    z++;
                }
            }
            if (count > 0 || z == 0)
            {
                outputLabel.Text             = "Number (0-9) and special characters (@,#,$..) are not allowed! ";
                saveCategoryNameTextBox.Text = "";
            }
            else
            {
                ProductCategory productCategory = new ProductCategory();
                productCategory.CategoryName       = saveCategoryNameTextBox.Text;
                outputLabel.Text                   = productCategoryManager.Save(productCategory);
                saveCategoryNameTextBox.Text       = "";
                productCategoryGridView.DataSource = productCategoryManager.GetAllProductCategory();
                productCategoryGridView.DataBind();
            }
        }