How to compare 2 list in Linq?

Contains() method with Linq to determine which elements are present in one list and not the other. The following code example shows us how we can compare two lists for differences with the List. Contains() function in C#. We compared the lists list1 and list2 for their differences in the above code.

How to compare two list items in c#?

Equals(Object) Method which is inherited from the Object class is used to check if a specified List object is equal to another List object or not. Syntax: public virtual bool Equals (object obj); Here, obj is the object which is to be compared with the current object.

How to compare 2 string lists in c#?

“c# compare two lists to find strings in both” Code Answer

  1. var list3 = list1. Except(list2); //list3 contains only 1, 2.
  2. var list4 = list2. Except(list1); //list4 contains only 6, 7.
  3. var resultList = list3. Concat(list4). ToList(); //resultList contains 1, 2, 6, 7.

How do I compare two lists of strings?

counter() method can be used to compare lists efficiently. The counter() function counts the frequency of the items in a list and stores the data as a dictionary in the format :. If two lists have the exact same dictionary output, we can infer that the lists are the same.

What is meant by Linq in C#?

Language-Integrated Query (LINQ) is the name for a set of technologies based on the integration of query capabilities directly into the C# language. Traditionally, queries against data are expressed as simple strings without type checking at compile time or IntelliSense support.

What is SequenceEqual in C#?

SequenceEqual() method If the two sequences contain the same number of elements, and each element in the first sequence is equal to the corresponding element in the second sequence (using the default equality comparer) then SequenceEqual() returns true .

How do you check if all values in a list are equal C#?

Check if all items are same in a List in C#

  1. Using Enumerable. Distinct Method. A simple solution to check if all list items have the same value is to get the distinct elements count in the list using LINQ’s Enumerable.Distinct method.
  2. Using Enumerable. Any Method.
  3. Using List. TrueForAll Method.

How do you compare two lists?

Compare Two Lists in Excel

  1. Method 1: Compare Two Lists Using Equal Sign Operator.
  2. Method 2: Match Data by Using Row Difference Technique.
  3. Method 3: Match Row Difference by Using IF Condition.
  4. Method 4: Match Data Even If There is a Row Difference.
  5. Method 5: Highlight All the Matching Data using Conditional Formatting.

How do you compare elements in two lists?

How to compare two lists in Python?

  1. Using list. sort() and == operator. The list.
  2. Using collections. Counter() This method tests for the equality of the lists by comparing frequency of each element in first list with the second list.
  3. Using == operator. This is a modification of the first method.