/// <summary>
/// 得到一个对象实体
/// </summary>
public LearnSite.Model.House GetModel(int Hid)
{
StringBuilder strSql = new StringBuilder();
strSql.Append("select top 1 Hid,Hname,Hseat from House ");
strSql.Append(" where Hid=@Hid");
SqlParameter[] parameters =
{
new SqlParameter("@Hid", SqlDbType.Int, 4)
};
parameters[0].Value = Hid;
LearnSite.Model.House model = new LearnSite.Model.House();
DataSet ds = DbHelperSQL.Query(strSql.ToString(), parameters);
if (ds.Tables[0].Rows.Count > 0)
{
if (ds.Tables[0].Rows[0]["Hid"].ToString() != "")
{
model.Hid = int.Parse(ds.Tables[0].Rows[0]["Hid"].ToString());
}
model.Hname = ds.Tables[0].Rows[0]["Hname"].ToString();
model.Hseat = ds.Tables[0].Rows[0]["Hseat"].ToString();
return(model);
}
else
{
return(null);
}
}
/// <summary>
/// 增加一条数据
/// </summary>
public int Add(LearnSite.Model.House model)
{
StringBuilder strSql = new StringBuilder();
strSql.Append("insert into House(");
strSql.Append("Hname,Hseat)");
strSql.Append(" values (");
strSql.Append("@Hname,@Hseat)");
strSql.Append(";select @@IDENTITY");
SqlParameter[] parameters =
{
new SqlParameter("@Hname", SqlDbType.NVarChar, 50),
new SqlParameter("@Hseat", SqlDbType.NText)
};
parameters[0].Value = model.Hname;
parameters[1].Value = model.Hseat;
object obj = DbHelperSQL.GetSingle(strSql.ToString(), parameters);
if (obj == null)
{
return(0);
}
else
{
return(Convert.ToInt32(obj));
}
}
/// <summary>
/// 更新一条数据
/// </summary>
public bool Update(LearnSite.Model.House model)
{
StringBuilder strSql = new StringBuilder();
strSql.Append("update House set ");
strSql.Append("Hname=@Hname,");
strSql.Append("Hseat=@Hseat");
strSql.Append(" where Hid=@Hid");
SqlParameter[] parameters =
{
new SqlParameter("@Hname", SqlDbType.NVarChar, 50),
new SqlParameter("@Hseat", SqlDbType.NText),
new SqlParameter("@Hid", SqlDbType.Int, 4)
};
parameters[0].Value = model.Hname;
parameters[1].Value = model.Hseat;
parameters[2].Value = model.Hid;
int rows = DbHelperSQL.ExecuteSql(strSql.ToString(), parameters);
if (rows > 0)
{
return(true);
}
else
{
return(false);
}
}