2024 C# remove item from list while iterating

C# remove item from list while iterating

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WebJul 6, 2024 · The below code demonstrates how to remove a key from the dictionary while iterating over it using Python 3. yourdict = { "one": 1, "two": 2, "three": 3, "four": 4, } for k in list (yourdict.keys ()): if k == "four": del yourdict [k] yourdict WebJan 14, 2013 · Приложение было написано на C# для платформы Windows, работающее с Microsoft SQL Server. ... (INSERT/UPDATE/DELETE; во второй части статьи я объясню что к чему) были написаны свои методы для …

Unable to delete object from a list using foreach loop

WebMay 20, 2016 · 1 I am iterating over a collection and want to delete some entries of it. Example: For i = 0 To Node.Nodes.Count If i >= args.TotalNumberOfNodes Then Node.Nodes.RemoveAt (i) End If Next i As you can see, if one condition is true, I want to delete the item from the collection. WebRemove item from List while iterating – C#. Removing elements from List<> while iterating over the List, someone may simply try: foreach(char c in list) { list.Remove(c); … long words with ant

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WebMar 13, 2024 · A Computer Science portal for geeks. It contains well written, well thought and well explained computer science and programming articles, quizzes and practice/competitive programming/company interview Questions. WebFeb 17, 2016 · IEnumerator EnemyTurn () { foreach ( GameObject enemy in enemylist) { enemyAttacking = enemy; Debug.Log("EnemyTurn"); EnemyScript attackscript = enemy.GetComponent< EnemyScript >(); attackscript.TurnChosen(); while ( attackscript.attacking) { yield return null; } } for (int n = enemylist.Count - 1; n >= 0; n --) { … WebSep 27, 2014 · List removed = new ArrayList<> (); nums.removeIf ( (Integer i)-> { boolean remove = i<3; if (remove) { removed.add (i); } return remove; }); Share Improve … long words with ati

Enumerating collections that change in C# Magnus Montin

remove an item from a list while iterating through it

WebMay 3, 2013 · C# List lstObj= new List () { 1, 3, 4, 5, 7, 8, 9, 10, 15 }; Suppose we need to remove element which has a value 10, while iterating through this collection, so we have the following code for this: C# foreach ( int i in listObj) { if (i == 10 ) { listObj.Remove (i); } } hop-o\\u0027-my-thumb l4WebFeb 28, 2015 · As an example, consider the below simple code snippet where I create a List of names and iterate it through and try to remove all names that starts with an ‘A’: List someNames = new List (); someNames.Add ("Bill"); someNames.Add ("Mike"); someNames.Add ("Alice"); someNames.Add ("Trevor"); … long words with an

"WebFeb 12, 2009 · elems = ['a','b','c'] i = 0 while i < len (elems): e = elems [i] print e elems.remove (e) i += 1 This has the same result. Now it’s clear that what’s happening: when you remove the 'a' from elems, the remaining elements slide down the list. The list is now ['b', 'c']. Now 'b' is at index 0, and 'c' is at index 1. " - C# remove item from list while iterating

C# remove item from list while iterating

c# - How to remove elements from a generic list while …

WebApr 13, 2010 · // Reset Sample Collection sampleList = new List () { "Value 1", "Value 2", "Value 3", "Value 4", "Value 5" }; try // Perform iteration (no exception) { for (int i = sampleList.Count; --i >= 0; ) if (sampleList [i] == "Value 1" sampleList [i] == "Value 4") sampleList.RemoveAt (i); } catch (Exception ex) { Console.WriteLine ("Iteration failed: … WebOct 27, 2007 · Removing items in a list while iterating through it Archived Forums V > Visual C# Language Question 0 Sign in to vote In this code, I get a …

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WebAug 24, 2007 · ArrayList list = new ArrayList (); for ( int i = 0; i < 10; i++) { list.Add (i); } for ( int i = 0; i < list.Count; i++) { if (list [i].ToString ().Equals ( "3" )) { list.RemoveAt (i); i--; } } foreach ( object var in list) { MessageBox .Show (var.ToString ()); } Hope it gives you some ideas! Friday, August 24, 2007 8:58 AM 0 Sign in to vote WebAug 17, 2009 · You can use store in hashtable the ones that should be removed, then to remove them: Code Snippet Hashtable toRemove = new Hashtable (); bool FOUND; foreach (Equipment tmpEQ in equipments) if (!toRemove.Contains (tmpEQ)) { FOUND = false; foreach (DataRow dr in EQTable.Rows) if (dr ["EQUIPMENT"].ToString () == …

WebOct 29, 2024 · We can also use another list to hold the elements that have been operated upon, and then remove them from the original list: List operatedList = new ArrayList <> (); itemList.stream () .filter (item -> item.isQualified ()) .forEach (item -> { item.operate (); operatedList.add (item); }); itemList.removeAll (operatedList); WebSep 15, 2024 · // If the value is unable to be removed, you can handle that by using the return // boolean value from the .TryRemove function. static void TryRemoveCity() { Console.WriteLine ($"Total cities = {Cities.Count}"); var searchKey = "Milwaukee"; if (Cities.TryRemove (searchKey, out CityInfo retrievedValue)) { Console.Write ($"Most …

WebDec 13, 2024 · In the code above, FirstName.RemoveAt (1) removes the item at index 1. It is necessary to know that the RemoveAt () method takes a zero-based index number … WebJul 13, 2024 · Using RemoveAll to Remove Elements From a Generic List We can also use the built-in RemoveAll method with a predicate instead of using a loop. This is a simple, …

WebRemoving items from a list while iterating through it? - Unity Answers using UnityEngine; using System.Collections; public class SceneManager : MonoBehaviour { string name; …

WebSummary: To remove items from a list while iterating, use any of the following methods. List comprehension, Reverse iteration with the remove () method, Lambda Function with the filter () method, or While loop with … long word superWebJan 27, 2024 · C# remove element from dictionary while iteratingKeep a list of the keys you wish to remove as you find them. Then, when you are done, iterate over this list, calling myDictionary.Remove (key) on each key you stored.Delete a Dictionary element while iterating it .NET Framework Also discuss all the o... hop-o\u0027-my-thumb laWebIn this example, we handle the PreviewKeyDown event and check if the Delete key was pressed. If the Delete key was pressed, we cast the sender to a DataGrid object and get the selected items using the SelectedItems property. We then loop through the selected items and remove each one from the DataGrid's ItemsSource collection using the Remove ... hop-o\\u0027-my-thumb lcWebApr 13, 2024 · C# : How to modify or delete items from an enumerable collection while iterating through it in C#To Access My Live Chat Page, On Google, Search for "hows tec... long words with gaWebMay 23, 2013 · If your ICacheItem can have value semantics then you can just use the approach above to do something similar to this: foreach (var p in collection) { if (p.Value.Expired ()) { if (!collection.TryRemove (p)) { log.Debug ("Did not remove item because it was changed."); } } } hop-o\\u0027-my-thumb l5WebMethod 1. Remove items from a list in for loop in C#. Need set the conditions from max to min in for loop to iterate from end to start in a list. List list = new List (Enumerable.Range (1, 10)); for (int i = list.Count - 1; i >= 0; i--) { list.RemoveAt (i); } Console.WriteLine (string.Join (", ", list)); long word supercalWebYou have to increment the iterator first (with i++) and then remove the previous element (e.g., by using the returned value from i++). You can change the code to a while loop like so: hop-o\u0027-my-thumb lb