从零开始学ASP.NET（基础篇）

从零开始学ASP.NET（基础篇）(31)             if (txtSubTitle.Text == string.Empty txtSubTitle.Text.Trim() == "")
            {
                cmd.Parameters["@SubTitle"].value = DBNull.value;
            }
            else
            {
                cmd.Parameters["@SubTitle"].value = txtSubTitle.Text.Trim();
            }
            if (txtWriter.Text == string.Empty txtWriter.Text.Trim() == "")