How to get maximum value in list c#?
- using System; using System. Linq; using System.
- var (maxValue, maxIndex) = list. Select((x, i) => (x, i)). Max(); var (minValue, minIndex) = list.
- Console. WriteLine(“Maximum element {0} present at index {1}”, maxValue, maxIndex); Console. WriteLine(“Minimum element {0} present at index {1}”, minValue, minIndex);
How do I get the maximum value of a column in Entity Framework?
SELECT MAX(expression ) FROM tables WHERE predicates; Is it possible to obtain the same result with Entity Framework….
- This should be the accepted answer.
- But it retrieves all column values from the database, and applies Max on the application side.
- This makes 3 sub-queries.
How can I get maximum salary in LINQ?
Example4:
- . Max(emp => emp. Salary);
- select emp). Max(e => e. Salary);
- WriteLine(“Highest Salary = ” + QSHighestSalary);
How do you select in C#?
In a query expression, the select clause specifies the type of values that will be produced when the query is executed. The result is based on the evaluation of all the previous clauses and on any expressions in the select clause itself. A query expression must terminate with either a select clause or a group clause.
How do you find min and max in C#?
Find minimum and maximum number from an array in C#
- Using Linq. A simple solution to find the minimum and maximum value in a sequence of values is using the Enumerable.
- Using Array. Sort() Method.
- Using Custom Routine. Finally, we can write a custom routine for finding the minimum and the maximum number of an array.
How do you find the minimum and maximum value in C#?
Very simply, the Min() method returns the minimum value from the source sequence and the Max() method returns the maximum value. As with the Sum() method, they can only be called on sequences containing numerical values.
What is LINQ select?
Select query in LINQ Select method is used to select one or more items from collection or list object, here we see some example of linq select statement. variableName. Select(s => s.Name); There are various ways we can select some records or single record from a collection object.
What is map in C#?
AutoMapper in C# is a library used to map data from one object to another. It acts as a mapper between two objects and transforms one object type into another. It converts the input object of one type to the output object of another type until the latter type follows or maintains the conventions of AutoMapper.
Should I use FirstOrDefault or SingleOrDefault?
When you want a default value is returned if the result set contains no record, use SingleOrDefault. When you always want one record no matter what the result set contains, use First or FirstOrDefault. When you want a default value if the result set contains no record, use FirstOrDefault.
Which is better IEnumerable or IQueryable?
So if you working with only in-memory data collection IEnumerable is a good choice but if you want to query data collection which is connected with database `IQueryable is a better choice as it reduces network traffic and uses the power of SQL language.
What is hash table in C#?
The Hashtable class represents a collection of key-and-value pairs that are organized based on the hash code of the key. It uses the key to access the elements in the collection. A hash table is used when you need to access elements by using key, and you can identify a useful key value.
What is the difference between map and Dictionary in C#?
Dictionary and Maps in C# The Dictionary is a generic collection that holds data in key-value pairs. On the other hand, the map takes a sequence of objects, applies some change to each of them, and produces a new sequence containing the transformed items.