Get minimum and maximum value using linq

I have a list that has values as displayed below
Using Linq how can i get the minimum from COL1 and maximum from COL2 for the selected id.

id     COL1      COL2
=====================
221     2         14
221     4         56   
221    24         16   
221     1         34
222    20         14    
222     1         12 
222     5         34

Based on the below list it should display id 221 1 56 and 222 1 34
help me out

Answers:

Thank you for visiting the Q&A section on Magenaut. Please note that all the answers may not help you solve the issue immediately. So please treat them as advisements. If you found the post helpful (or not), leave a comment & I’ll get back to you as soon as possible.

Method 1

If you want Min and Max value for each ID in the list, then you have to group by ID and the get MAX and Min accordingly like:

var query = yourList.GroupBy(r=> r.ID)
                    .Select (grp => new 
                              {
                                ID = grp.Key, 
                                Min = grp.Min(t=> t.Col1), 
                                Max = grp.Max(t=> t.Col2)
                              });

Use Enumerable.Max method to calculate maximum like:
var max = yourList.Max(r=> r.Col1);

Use Enumerable.Min method to calculate minimum on a field like:
var min = yourList.Min(r=> r.Col2);

Method 2

You can sort, something like:

var min = yourList.OrderBy(p => p.Col1).First();
var max = yourList.OrderByDescending(p => p.Col1).First();


All methods was sourced from stackoverflow.com or stackexchange.com, is licensed under cc by-sa 2.5, cc by-sa 3.0 and cc by-sa 4.0

0 0 votes
Article Rating
Subscribe
Notify of
guest

0 Comments
Inline Feedbacks
View all comments
0
Would love your thoughts, please comment.x
()
x