剛開懂一個添加新聞的流程：

在表現層中，用下面一句代碼條用bll中的方法
?sc.BLL.News bll = new sc.BLL.News();

?protected?void?btnSubmit_Click(object?sender,?EventArgs?e)
????{
??????????if(r>0)
????????{
????????????Page.ClientScript.RegisterStartupScript(this.GetType(),?"s",?"<script>alert('新聞添加成功！');location.reload('AddNews.aspx')</script>");
????????}
????}
bll中：private readonly sc.IDAL.INews dal = DataAccess.CreateNews();
????????public?int?Add(sc.Model.News?model)
????????{
????????????return?dal.Add(model);
????????}
IDAL中：?
?int?Add(sc.Model.News?model);
DAL中
?public?class?News?:?INews
{

???public?int?Add(sc.Model.News?model)
????????{
????????????StringBuilder?strSql?=?new?StringBuilder();
????????????strSql.Append("insert?into?[News](");
????????????strSql.Append("[Title],[Author],[NewsFrom],[NCID],[NewsType],[NewsContent])");
????????????strSql.Append("?values?(");
????????????strSql.Append("@Title,@Author,@NewsFrom,@NCID,@NewsType,@NewsContent)");
????????????strSql.Append(";select?@@Identity");
????????????SqlParameter[]?parameters?=?{
????????????????????new?SqlParameter("@Title",?SqlDbType.VarChar,50),
????????????????????new?SqlParameter("@Author",?SqlDbType.NVarChar,15),
????????????????????new?SqlParameter("@NewsFrom",?SqlDbType.NVarChar,100),
????????????????????new?SqlParameter("@NCID",?SqlDbType.Int),
????????????????????new?SqlParameter("@NewsType",?SqlDbType.Int),
????????????????????new?SqlParameter("@NewsContent",?SqlDbType.Text)
????????????};
????????????parameters[0].Value?=?model.Title;

????????????if?(model.Author?!=?null)
????????????????parameters[1].Value?=?model.Author;
????????????else
????????????????parameters[1].Value?=?DBNull.Value;


????????????if?(model.NewsFrom?!=?null)
????????????????parameters[2].Value?=?model.NewsFrom;
????????????else
????????????????parameters[2].Value?=?DBNull.Value;

????????????parameters[3].Value?=?model.NCID;
????????????parameters[4].Value?=?model.NewsType;
????????????parameters[5].Value?=?model.NewsContent;
????????????return?SqlHelper.GetInt(SqlHelper.GetSingle(SqlHelper.LocalSqlServer,?strSql.ToString(),?parameters));
????????}

}

轉載于:https://www.cnblogs.com/gengxiaochao/archive/2007/10/31/943764.html

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