/// <summary>
/// DataSet转换为实体类
/// </summary>
/// <typeparam name="T">实体类</typeparam>
/// <param name="p_DataSet">DataSet</param>
/// <param name="p_TableIndex">待转换数据表索引</param>
/// <returns>实体类</returns>
public static T DataSetToEntity<T>(DataSet p_DataSet, int p_TableIndex)
{
if (p_DataSet == null || p_DataSet.Tables.Count < 0)
return default(T);
if (p_TableIndex > p_DataSet.Tables.Count - 1)
return default(T);
if (p_TableIndex < 0)
p_TableIndex = 0;
if (p_DataSet.Tables[p_TableIndex].Rows.Count <= 0)
return default(T); DataRow p_Data = p_DataSet.Tables[p_TableIndex].Rows[0];
// 返回值初始化
T _t = (T)Activator.CreateInstance(typeof(T));
PropertyInfo[] propertys = _t.GetType().GetProperties();
foreach (PropertyInfo pi in propertys)
{
if (p_DataSet.Tables[p_TableIndex].Columns.IndexOf(pi.Name.ToUpper()) != -1 && p_Data[pi.Name.ToUpper()] != DBNull.Value)
{
pi.SetValue(_t, p_Data[pi.Name.ToUpper()], null);
}
else
{
pi.SetValue(_t, null, null);
}
}
return _t;
} /// <summary>
/// DataSet转换为实体列表
/// </summary>
/// <typeparam name="T">实体类</typeparam>
/// <param name="p_DataSet">DataSet</param>
/// <param name="p_TableIndex">待转换数据表索引</param>
/// <returns>实体类列表</returns>
public static IList<T> DataSetToEntityList<T>(DataSet p_DataSet, int p_TableIndex)
{
if (p_DataSet == null || p_DataSet.Tables.Count < 0)
return default(IList<T>);
if (p_TableIndex > p_DataSet.Tables.Count - 1)
return default(IList<T>);
if (p_TableIndex < 0)
p_TableIndex = 0;
if (p_DataSet.Tables[p_TableIndex].Rows.Count <= 0)
return default(IList<T>); DataTable p_Data = p_DataSet.Tables[p_TableIndex];
// 返回值初始化
IList<T> result = new List<T>();
for (int j = 0; j < p_Data.Rows.Count; j++)
{
T _t = (T)Activator.CreateInstance(typeof(T));
PropertyInfo[] propertys = _t.GetType().GetProperties();
foreach (PropertyInfo pi in propertys)
{
if (p_Data.Columns.IndexOf(pi.Name.ToUpper()) != -1 && p_Data.Rows[j][pi.Name.ToUpper()] != DBNull.Value)
{
pi.SetValue(_t, p_Data.Rows[j][pi.Name.ToUpper()], null);
}
else
{
pi.SetValue(_t, null, null);
}
}
result.Add(_t);
}
return result;
}