ASP 用GridView控件连接SQL Server数据库(3)

            cmd.Parameters["@_leibie"].Value = TextBox2.Text.Trim();

            cmd.Parameters.Add("@_timu", SqlDbType.VarChar);

            cmd.Parameters["@_timu"].Value = TextBox3.Text.Trim();

            cmd.Parameters.Add("@_neirong", SqlDbType.VarChar);

            cmd.Parameters["@_neirong"].Value = TextBox4.Text.Trim();

            con.Open();

            cmd.ExecuteNonQuery();

            GridViewBind();

        }

    }

    protected void 删除新闻_Click(object sender, EventArgs e)

    {

        if (TextBox1.Text == "")

        {

            this.Page.RegisterStartupScript("ss", "<script>alert('请输入你想删除的编号')</script>");

        }

        else

        {

            SqlConnection con = new SqlConnection(ConfigurationManager.

                               ConnectionStrings["connection"].ConnectionString);

            string delete = "delete news from news where 新闻编号='" + TextBox1.Text + "'";

            SqlCommand com = new SqlCommand(delete, con);

            con.Open();

            com.ExecuteNonQuery();

            con.Close();

            GridViewBind();

        }

    }

    protected void 修改新闻_Click(object sender, EventArgs e)

    {

        if (TextBox1.Text == "")

        {

            this.Page.RegisterStartupScript("ss", "<script>alert('请输入你要删除的编号')</script>");