/// <summary>
///
/// </summary>
/// <returns></returns>
public KeyValueItemCollection ToKeyValueItemCollection()
{
KeyValueItemCollection result = new KeyValueItemCollection();
foreach (var item in ListItems)
{
result.Add(item);
}
return(result);
}
/// <summary>
/// 获取按照KeyValueItem项中的Key排序的结果集
/// </summary>
/// <returns></returns>
public KeyValueItemCollection OrderByKey()
{
var kvis = new List <KeyValueItem>();
foreach (KeyValueItem kvi in this.List)
{
kvis.Add(kvi);
}
var kvic = new KeyValueItemCollection();
foreach (var kvi in kvis.OrderBy(item => item.Key))
{
kvic.Add(kvi);
}
return(kvic);
}
/// <summary>
/// 排除重复主键值的记录
/// </summary>
/// <returns></returns>
public KeyValueItemCollection Distinct()
{
var result = new KeyValueItemCollection();
foreach (KeyValueItem kvi in List)
{
bool exist = false;
foreach (KeyValueItem kviResult in result)
{
if (kvi.Key == kviResult.Key)
{
exist = true;
break;
}
}
if (exist)
{
continue;
}
result.Add(kvi);
}
return(result);
}