Filter list of objects c#
WebAug 6, 2015 · Not sure if anyone is still looking for any additional ways to do this. But I've used this code to remove duplicates from a list of User objects based on matching ID numbers. private ArrayList RemoveSearchDuplicates (ArrayList SearchResults) { ArrayList TempList = new ArrayList (); foreach (User u1 in SearchResults) { bool duplicatefound ... WebOct 7, 2024 · List subList = GetUsers() as List; // GetUsers returns a list of User objects . then to filter i do : var filteredList = subList.Where(x => …
Filter list of objects c#
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WebJun 5, 2013 · List logs = db.Log.ToList(); I'm currently implementing a few filters for this list, which is displayed on an MVC view. What I'm trying to do is simply filter the results of this list by text that is entered by the user, however the examples I've found demonstrate filtering for strings or integers, not multiple properties of an object. WebDec 21, 2024 · Filtering through a data set is one of the most basic operations a developer should know how to perform. Filtering refers to the process of restricting the result set to contain only those elements that …
Web2 days ago · I have a ParsePredicateOf>(item2) that takes a JsonElement. I returns a Func, bool> that should be used in a where clause. At this point it only applies the last of the predicates in the foreach statement. WebDec 21, 2024 · In this method, you loop through a list and search for the member of each iteration that passes the condition. Below is a code sample that uses the iterative method: Console.WriteLine ("Filtering through the …
WebApr 9, 2012 · This is not correct, as the grid is now bound to a copy of the list. I think it is because the BindingSource doesn't know what type of data it is filtering. Once a data is converted to dataset into columns and rows, filter can run. Because your datasource is a class, it can't do the automatic filtering. Webi have a list of project objects: IEnumerable projects a Project class as a property called Tags. this is a int[] i have a variable called filteredTags which is also a int[]. So lets say my filtered tags variable looks like this: int[] filteredTags = new int[]{1, 3};
WebDec 31, 2024 · Good evening, I'm building a basic console application to learn how to filter object list property data. I'm trying to filter a list of objects based on user selected object property and it's value, but I'm struggling to conceptualize how to connect user input to objects property, since properties do not have an index. For example, if we have a ...
WebMay 22, 2024 · Something like this: var filterList = collection.Where (r => r.AccountNumber == clickedCell.Value); Only problem is the r.AccountNumber is dependant on the data property of the selected column. The program does not know what the data property is based on a click event on the selected cell. This is why I think reflection might be … black hair purple eyesWebOct 7, 2024 · List subList = GetUsers() as List; // GetUsers returns a list of User objects . then to filter i do : var filteredList = subList.Where(x => x.Name == "Test2" x.Name == "Test3"); I get null , i dont get anything in the filteredlist black hair purple eyes animeWebMar 6, 2024 · 3. This should work: var result = dicts.Where ( d => d.TryGetValue ("field1", out object value) && value is int i && i == 1500 ).ToList (); This picks out all the dictionaries in the list that have a field called field1 (via the d.TryGetValue ()) and where that value is also 1500. Note that because the dictionary contains object and not int ... gamestop 5 townsWebMar 21, 2012 · 4 Answers Sorted by: 35 Simple: myList.SelectMany (sublist => sublist) .Where (item => item.Name == "ABC" && item.Action == "123"); This gives you all the … gamestop 5744WebOct 18, 2024 · Using Linq to Filter a List of Objects based on a Condition. I am solving an issue where I want to remove unwanted objects from a list List as a result of a region name condition . As an entry input I receive var data , which contains a List. One item CasesDto corresponds to all region-based data received on … black hair puffsWebNov 4, 2015 · You can do that with a lambda. List houseOnes = houses.FindAll (house => house.Name == "House 1"); Basically you have to tell it what you want to compare to for each item. In this case you compare the Name property to the string … black hair quoraWebNov 25, 2016 · Generic method to filter a list object. I am trying to create a generic method that takes three parameters. 1) List collection 2) String PropertyName 3) String FilterString. The idea is we pass a collection of Objects, the name of the property of the object and a Filter Criteria and it returns back a list of Objects where the property contains ... black hair purple roots