我有一個像這樣的課程
public class Item
{
public int Id {get;set;}
public string Name {get;set;}
public string PartialDescription {get;set;}
public string FullDescription {get;set;}
public doulbe Price {get;set;}
}
我想有一個動態的自定義查詢方法SearchOverAnyFields(),它可以接受任意數量的Item對象的屬性,例如:
// key is an input string variable
// one query
var results = myItems.SearchOverAnyFields(x => x.Name.Contains(key) || x.PartialDescription.Contains(key) || x.Price.ToString().Contains(key));
// or another query
var results2 = myItems.SearchOverAnyFields(x => x.Name.Contains(key) || x.PartialDescription.Contains(key) || x.Price.ToString().Contains(key)
|| x.FullDescription.Contains(key));
// or another query
var results3 = myItems.SearchOverAnyFields(x => x.PartialDescription.Contains(key) || x.FullDescription.Contains(key));
請幫忙。
我不太確定您在這裡尋找什麼-您可以使用Where
運算符輕鬆實現所需的功能。
var results = myItems.Where(x => x.Name.Contains(key) ||
x.PartialDescription.Contains(key) || x.Price.ToString().Contains(key));
// or another query
var results2 = myItems.Where(x => x.Name.Contains(key) ||
x.PartialDescription.Contains(key) || x.Price.ToString().Contains(key)
|| x.FullDescription.Contains(key));
// or another query
var results3 = myItems.Where(x => x.PartialDescription.Contains(key) ||
x.FullDescription.Contains(key));
這符合您的要求嗎?