Table转换成实体、Table转换成实体集合(可转换成对象和值类型)

/// <summary>
/// Table转换成实体
/// </summary>
/// <typeparam name="T"></typeparam>
/// <param name="table"></param>
/// <returns></returns>
public static T ToEntity<T>(this DataTable table) where T : class, new()
{
if (table == null || table.Rows == null || table.Rows.Count <= 0)
{
return default(T);
}
var entity = (T)Activator.CreateInstance(typeof(T));
var row = table.Rows[0];
var properties = typeof(T).GetProperties(BindingFlags.Instance | BindingFlags.Public);

foreach (var property in properties)
{
if (table.Columns.Contains(property.Name))
{
if (!IsNullOrDBNull(row[property.Name]))
{
property.SetValue(entity, HackType(row[property.Name], property.PropertyType), null);
}
}
}
return entity;
}

/// <summary>
/// Table转换成实体集合(可转换成对象和值类型)
/// </summary>
/// <typeparam name="T"></typeparam>
/// <param name="table"></param>
/// <returns></returns>
public static List<T> ToList<T>(this DataTable table)
{
var list = new List<T>();
var properties = typeof(T).GetProperties(BindingFlags.Instance | BindingFlags.Public);
for (var i = 0; i < table.Rows.Count; i++)
{
var row = table.Rows[i];
T entity;
var tType = typeof(T);
if (!(tType == typeof(string)) && (tType.IsClass || tType.IsGenericType))
{
entity = (T)Activator.CreateInstance(typeof(T));
foreach (var property in properties)
{
if (table.Columns.Contains(property.Name))
{
if (!IsNullOrDBNull(row[property.Name]))
{
property.SetValue(entity, HackType(row[property.Name], property.PropertyType), null);
}
}
}
}
else
{
//entity = default(T);
entity = ConvertUtils.To(row[0], default(T));
}
list.Add(entity);
}
return list;
}

posted @ 2018-07-06 15:56  BIGBOY_GU  阅读(147)  评论(1编辑  收藏  举报