/// <summary>
/// 新增一个系统类型
/// </summary>
/// <param name="systemType">系统类型对象</param>
/// <returns>受影响的行数</returns>
public static int AddSystemType(SystemType systemType)
{
string sql = "INSERT INTO systemType(stName,sDesc,sFilePath) VALUES(@stName,@sDesc,@sFilePath)";
SqlParameter[] paremeter = new SqlParameter[] {
new SqlParameter("@stName",systemType.StName),
new SqlParameter("@sDesc",systemType.SDesc),
new SqlParameter("@sFilePath",systemType.SFilePath)
};
return DBHelper.GetScalar(sql, paremeter);
}
/// <summary>
/// 更新指定系统类型的信息
/// </summary>
/// <param name="systemType">被更新的对象</param>
/// <returns>受影响的行数</returns>
public static int ModifySystemInfo(SystemType systemType)
{
string sql = "UPDATE systeminfo SET stName = @stName,sDesc = @sDesc,sFilePath = @sFilePath WHERE stID = @stID";
SqlParameter[] paremeter = new SqlParameter[] {
new SqlParameter("@stName",systemType.StName),
new SqlParameter("@sDesc",systemType.SDesc),
new SqlParameter("@sFilePath",systemType.SFilePath),
new SqlParameter("@stID",systemType.StID)
};
return DBHelper.GetScalar(sql, paremeter);
}
/// <summary>
/// 获取指定的ID的系统类型
/// </summary>
/// <param name="id">系统类型ID</param>
/// <returns>指定ID系统类型的对象</returns>
public static SystemType GetSystemTypeByID(int id)
{
string sql = "SELECT * FROM systemType WHERE sID = @stID";
using (DataTable dataTable = DBHelper.GetDataTable(sql, new SqlParameter("@stID", id)))
{
if (dataTable.Rows.Count > 0)
{
SystemType systemType = new SystemType();
systemType.StID = Convert.ToInt32(dataTable.Rows[0]["sID"].ToString());
systemType.StName = (string)dataTable.Rows[0]["stName"];
systemType.SDesc = (string)dataTable.Rows[0]["sDesc"];
systemType.SFilePath = (string)dataTable.Rows[0]["sFilePath"];
systemType.SInTime = (DateTime)dataTable.Rows[0]["sInTime"];
return systemType;
}
else
{
return null;
}
}
}
/// <summary>
/// 依据SQL语句查询
/// </summary>
/// <param name="sql">SQL语句</param>
/// <returns>满足SQL语句的结果集</returns>
private static List<SystemType> GetSystemTypeBySQL(string sql)
{
List<SystemType> list = new List<SystemType>();
using(DataTable dataTable = DBHelper.GetDataTable(sql))
{
foreach(DataRow row in dataTable.Rows)
{
SystemType systemType = new SystemType();
systemType.StID = Convert.ToInt32(row["sID"]);
systemType.StName = (string)row["stName"];
systemType.SDesc = (string)row["sDesc"];
systemType.SFilePath = (string)row["sFilePath"];
systemType.SInTime = (DateTime)row["sInTime"];
list.Add(systemType);
}
return list;
}
}
