C# 提交成功提示

 if (txtName.Text == "")
        {
            Response.Write("<script>alert('请输入管理员名！');location='javascript:history.go(-1)';</script>");
        }
        else
        {
            int P_Int_returnValue = mc.AddAdmin(txtName.Text.Trim(),txtPass.Text.Trim());
            if (P_Int_returnValue==100)
            {
                Response.Write("<script>alert('该管理员名已存在！');location='javascript:history.go(-1)';</script>");
            }
            else
            {
                Response.Write("<script>alert('添加成功！');location='javascript:history.go(-1)';</script>");
            
            }
        
        }