/// <summary>
/// 更新一条数据
/// </summary>
public bool Update(SP.Model.news model)
{
StringBuilder strSql = new StringBuilder();
strSql.Append("update news set ");
strSql.Append("title=@title,");
strSql.Append("tid=@tid,");
strSql.Append("bgpic=@bgpic,");
strSql.Append("memo=@memo");
strSql.Append(" where nid=@nid");
SqlParameter[] parameters =
{
new SqlParameter("@title", SqlDbType.VarChar, 50),
new SqlParameter("@tid", SqlDbType.Int, 4),
new SqlParameter("@bgpic", SqlDbType.VarChar, 100),
new SqlParameter("@memo", SqlDbType.NText),
new SqlParameter("@nid", SqlDbType.Int, 4)
};
parameters[0].Value = model.title;
parameters[1].Value = model.tid;
parameters[2].Value = model.bgpic;
parameters[3].Value = model.memo;
parameters[4].Value = model.nid;
int rows = DbHelperSQL.ExecuteSql(strSql.ToString(), parameters);
if (rows > 0)
{
return(true);
}
else
{
return(false);
}
}
/// <summary>
/// 得到一个对象实体
/// </summary>
public SP.Model.news DataRowToModel(DataRow row)
{
SP.Model.news model = new SP.Model.news();
if (row != null)
{
if (row["nid"] != null && row["nid"].ToString() != "")
{
model.nid = int.Parse(row["nid"].ToString());
}
if (row["title"] != null)
{
model.title = row["title"].ToString();
}
if (row["tid"] != null && row["tid"].ToString() != "")
{
model.tid = int.Parse(row["tid"].ToString());
}
if (row["bgpic"] != null)
{
model.bgpic = row["bgpic"].ToString();
}
if (row["memo"] != null)
{
model.memo = row["memo"].ToString();
}
if (row["atime"] != null && row["atime"].ToString() != "")
{
model.atime = DateTime.Parse(row["atime"].ToString());
}
}
return(model);
}
/// <summary>
/// 增加一条数据
/// </summary>
public int Add(SP.Model.news model)
{
StringBuilder strSql = new StringBuilder();
strSql.Append("insert into news(");
strSql.Append("title,tid,bgpic,memo,atime)");
strSql.Append(" values (");
strSql.Append("@title,@tid,@bgpic,@memo,@atime)");
strSql.Append(";select @@IDENTITY");
SqlParameter[] parameters =
{
new SqlParameter("@title", SqlDbType.VarChar, 50),
new SqlParameter("@tid", SqlDbType.Int, 4),
new SqlParameter("@bgpic", SqlDbType.VarChar, 100),
new SqlParameter("@memo", SqlDbType.NText),
new SqlParameter("@atime", SqlDbType.DateTime)
};
parameters[0].Value = model.title;
parameters[1].Value = model.tid;
parameters[2].Value = model.bgpic;
parameters[3].Value = model.memo;
parameters[4].Value = model.atime;
object obj = DbHelperSQL.GetSingle(strSql.ToString(), parameters);
if (obj == null)
{
return(0);
}
else
{
return(Convert.ToInt32(obj));
}
}
/// <summary>
/// 得到一个对象实体
/// </summary>
public SP.Model.news GetModel(int nid)
{
StringBuilder strSql = new StringBuilder();
strSql.Append("select top 1 nid,title,tid,bgpic,memo,atime from news ");
strSql.Append(" where nid=@nid");
SqlParameter[] parameters =
{
new SqlParameter("@nid", SqlDbType.Int, 4)
};
parameters[0].Value = nid;
SP.Model.news model = new SP.Model.news();
DataSet ds = DbHelperSQL.Query(strSql.ToString(), parameters);
if (ds.Tables[0].Rows.Count > 0)
{
return(DataRowToModel(ds.Tables[0].Rows[0]));
}
else
{
return(null);
}
}
