动态Linq查询字符串不与混合运算符一起使用

Question

我在我的应用程序中使用了List<string> contains = new List<string>() { "Poland", "Ecuador" }; List<object> array = new List<object>(); array.Add("Austria"); array.Add("Eritrea"); array.Add(contains); //this works var data0 = Contact.GetContactsList().AsQueryable().Where("@0.Contains(outerIt.Country)", array); //this does not work var data = Contact.GetContactsList().AsQueryable().Where("Country.Equals(@0) OR it.Country.Equals(@1) OR @3.Contains(outerIt.Country)", array.ToArray()); ，但遗憾的是它无效。 这是我的示例代码。

data0

我有与国家/地区相关的联系人列表。 你可以看到我使用了混合运算符，即equals和contains。 如果单独使用contains，那么它的工作正确。 我试图在这里做新事物，使用Equals和Contains运算符是相同的查询字符串。 我已经附加了描述输出的图像或data以及处理以获取<div class="container"> <div id="myCarousel" class="carousel slide" data-ride="carousel"> <!-- Indicators --> <ol class="carousel-indicators"> <li data-target="#myCarousel" data-slide-to="0" class="active"></li> <li data-target="#myCarousel" data-slide-to="1"></li> <li data-target="#myCarousel" data-slide-to="2"></li> <li data-target="#myCarousel" data-slide-to="3"></li> </ol> <div class="carousel-inner" role="listbox"> <div class="item active"> <div class="row"> <div class="col-md-2"> <a href="#" class="thumbnail"> <img src="Images/1.jpg" alt="Image" /></a> </div> <div class="col-md-2"> <a href="#" class="thumbnail"> <img src="Images/2.jpg" alt="Image" /></a> </div> <div class="col-md-2"> <a href="#" class="thumbnail"> <img src="Images/3.jpg" alt="Image" /></a> </div> <div class="col-md-2"> <a href="#" class="thumbnail"> <img src="Images/4.jpg" alt="Image" /></a> </div> <div class="col-md-2"> <a href="#" class="thumbnail"> <img src="Images/5.jpg" alt="Image" /></a> </div> <div class="col-md-2"> <a href="#" class="thumbnail"> <img src="Images/6.jpg" alt="Image" /></a> </div> </div> </div> <div class="item"> <div class="row"> <div class="col-md-2"> <a href="#" class="thumbnail"> <img src="Images/7.jpg" alt="Image" /></a> </div> <div class="col-md-2"> <a href="#" class="thumbnail"> <img src="Images/8.jpg" alt="Image" /></a> </div> <div class="col-md-2"> <a href="#" class="thumbnail"> <img src="Images/9.jpg" alt="Image" /></a> </div> <div class="col-md-2"> <a href="#" class="thumbnail"> <img src="Images/10.jpg" alt="Image" /></a> </div> <div class="col-md-2"> <a href="#" class="thumbnail"> <img src="Images/11.jpg" alt="Image" /></a> </div> <div class="col-md-2"> <a href="#" class="thumbnail"> <img src="Images/12.jpg" alt="Image" /></a> </div> </div> </div> <div class="item"> <div class="row"> <div class="col-md-2"> <a href="#" class="thumbnail"> <img src="Images/13.jpg" alt="Image" /></a> </div> <div class="col-md-2"> <a href="#" class="thumbnail"> <img src="Images/14.jpg" alt="Image" /></a> </div> <div class="col-md-2"> <a href="#" class="thumbnail"> <img src="Images/15.jpg" alt="Image" /></a> </div> <div class="col-md-2"> <a href="#" class="thumbnail"> <img src="Images/16.jpg" alt="Image" /></a> </div> <div class="col-md-2"> <a href="#" class="thumbnail"> <img src="Images/17.jpg" alt="Image" /></a> </div> <div class="col-md-2"> <a href="#" class="thumbnail"> <img src="Images/18.jpg" alt="Image" /></a> </div> </div> </div> <div class="item"> <div class="row"> <div class="col-md-2"> <a href="#" class="thumbnail"> <img src="Images/19.jpg" alt="Image" /></a> </div> <div class="col-md-2"> <a href="#" class="thumbnail"> <img src="Images/10.jpg" alt="Image" /></a> </div> <div class="col-md-2"> <a href="#" class="thumbnail"> <img src="Images/11.jpg" alt="Image" /></a> </div> <div class="col-md-2"> <a href="#" class="thumbnail"> <img src="Images/12.jpg" alt="Image" /></a> </div> <div class="col-md-2"> <a href="#" class="thumbnail"> <img src="Images/13.jpg" alt="Image" /></a> </div> <div class="col-md-2"> <a href="#" class="thumbnail"> <img src="Images/14.jpg" alt="Image" /></a> </div> </div> </div> </div> <a class="left carousel-control" href="#myCarousel" role="button" data-slide="prev"> <span class="glyphicon glyphicon-chevron-left" aria-hidden="true"></span> <span class="sr-only">Previous</span> </a> <a class="right carousel-control" href="#myCarousel" role="button" data-slide="next"> <span class="glyphicon glyphicon-chevron-right" aria-hidden="true"></span> <span class="sr-only">Next</span> </a> </div>

时的错误

谢谢。

Answer 1

我在那里犯了一个愚蠢的错误。代码工作正常但我在那里给出了错误的索引。索引3应替换为2.：P enter image description here

附上结果。