c# - LINQ Getting Unique items from a List within a List -


मेरे पास एक परिभाषा के साथ सूची प्रकार MyObject है: <पूर्व> वर्ग MyObject {सार्वजनिक स्ट्रिंग ListName {get; सेट; } सार्वजनिक IEnumerable & lt; अन्य ऑब्जेक्ट & gt; वस्तुसूची {प्राप्त करें; LINQ का उपयोग करके सूची प्रकार MyObject को देखते हुए सभी विशिष्ट प्राप्त करने के लिए मुझे किस अभिव्यक्ति का उपयोग करना चाहिए? OtherObject ?

मैं जो करने की योजना बना रहा था वह प्रत्येक MyObject लूप था और अन्य ऑब्जेक्ट को ObjectList संपत्ति से प्राप्त किया गया था, लेकिन तब मुझे सूची में विशिष्ट होना चाहिए।

कृपया ध्यान दें कि यदि: MyObject [0]। ओब्जेस्टलिस्ट [0] == 'मद' ए ' और MyObject [1 ] .ऑब्जेक्टसूची [0] == 'मद' ए ' यह अभी भी ItemA का एक उदाहरण वापस करेगा। यह कोड केवल एक प्रतिनिधित्व है ऐसा नहीं है कि मैं अपने ऑब्जेक्ट्स को किस तरह से एक्सेस कर सकता हूं।

आप यह केवल तर्क का उपयोग करके प्राप्त कर सकते हैं। सी # के रूप में एक अच्छा कार्यान्वयन है: 

  var set = new HashSet & lt; अन्य ऑब्जेक्ट & gt; (myObjects.SelectMany (मो = & gt; मो। ऑब्जेक्ट लिस्ट));   
 या यदि आप आस्थगित निष्पादन को पसंद करते हैं, तो आप LINQ विधि का उपयोग कर सकते हैं:  
  var अलग = myObjects.SelectMany (मो = & gt; मो। ऑब्जेक्टसूची) .Distinct ();

Comments

Post a Comment

Popular posts from this blog

python - Assemble mpeg file unable to play in mediaplayer -

I am currently working on a school project and I think that is to gather some problems with the MPEG file I The scope of my project is: 1) Split the MPEG file into pieces of many fixed sizes. 2) Collecting some of them and leaving some part. Problem 1: When I run the file in the media player, it will play the video until it reaches that segment which I left Give it Example: Chunk = ["yui_1", "yui_2", "yui_3", "yui_5", "yui_6"] Duration of each segment: 1 second * If you think I have left the "yui_4" section. * If I went to collect all the parts except "yui_4", then the video will play the first 2 seconds before being hanged throughout the period. Problem 2: When I gather the first part off the part, it is unable to run the full MPEG file is. Duration of each piece: 1 second Example: wheel = ["yui_2", "yui_3", "yui_4", "yui_5", "yui_6"...
Read more

c# - crystal report failed -

I have created a crystal report with parameters, but this does not load the value. It only shows the title, I mean column name only. Please check your code and correct me. And I tried to load that report in PDF format, which shows an error like "Load report failed" Please correct me. Protected Zero Button 2_Click (Object Sender, EventArgs E) {Report Document Reports Document = New Report Document (); Reportdocument.Load (Server.MapPath ("CrystalReport.rpt")); Reportdocument.SetDatabaseLogon ("", "", "Arvind", "My ScamDDB"); Report document. Setpermator val ("mrno", textbox 1. text); CrystalReportViewer1.ReportSource = Report Document; } Secure Zero LinkButton1_Click (Object Sender, EventArgs E) {Exportport (); Private Zero Exports () {MemoriStream Ostream; Response.Clear (); reaction. Buffer = true; Report Document Report Document = New Report Document (); Reportdocument.Load (Server.MapPath ("CrystalReor...
Read more

mongodb - CakePHP paginator ignoring order, but only for certain values -

While pagging my user model in kppp, I can sort with some values, but not others. For example, I can order results from created or email , for example, but username or reputation seems to come back order by arbitrary command for example with a list of users: $ this-> paginate = array ('condition' => array ( 'User.is_active' = & gt; true), 'border' => 24, 'order' => array ('User.created' => DESC)); Works as expected, but $ this - & gt; Paged = array ('conditions' = & gt; array (' user.isIactive '= & gt; true),' border '= & gt; 24,' command '= & gt; array (' user repeats' = ' & Gt; DESC ')); No, no. I first thought that this could be a database issue, but when I search the database directly, sorted as expected. Note: I am using Mangodebi with the Mongo DB plugin of Ichikawa for the KPPHP; Pagnetizing users are used to work properl...
Read more