All Questions
107 questions
0
votes
1
answer
23
views
How I can select two elements to one list with linq
Firstly I need to create string array that include elements came from different properties of one object.
At the below code MyDatas is IEnumerable, prop1 and prop2 are string.
var array = myDatas....
- 25
1
vote
1
answer
52
views
Using LINQ to retrieve multiple records that fit criteria
I have a FE that allows a user to filter based on different criteria. One of these criteria is Business Units. When a user selects this filter the URL looks like this: https://localhost:7206/api/v1/...
- 11
2
votes
1
answer
631
views
Calculate average of floats array using LINQ
Beginner here,
I have a list that stores arrays of floats (each array reflects a vector, if it matters):
List<float[]>
My goal is to calculate the average values of all these arrays (that is, ...
- 31
-2
votes
3
answers
562
views
Is there an easy way to flatten an array of objects while making an array of the one column that would be different?
I have an array of objects similar to this:
class StateVisitor
{
string FirstName { get; set; }
string LastName { get; set; }
string StateViseted { get; set; }
}
StateVisitor[] ...
- 97
0
votes
3
answers
1k
views
How can I skip loop for first and last element of array and set them to constant value?
I would like the loop to start from the second element and to end before the last one.
So that I can set the first and last one to constant value.
for (int i = 0; i < n; i++) {
for (int j = 0; j &...
- 13
1
vote
1
answer
365
views
Cartesian product of an array with itself a variable amount of times?
I want to write a function which returns the cartesian product of an array with itself a variable amount of times.
Now, if the number of cartesian products is known at compile time, then I can do the ...
- 1,371
0
votes
0
answers
180
views
How to export Linq List to Excel Range
I have a list converted from Json having approximately 26 fields. Among those fields I need to select a few as below
var use = Data.USEData.Where(x => x.GLMBorrowerName == borrowerName)
...
- 108
0
votes
2
answers
72
views
What's the best way to acquire a list of strings that match a string inside a string, by looking through a string list?
Basically I have a string array that I am using to match inside a single string:
string[] matches = { "{A}", "{B}", "{CC}" };
Then I from these I look if I find any of these inside my string:
...
- 330k
1
vote
1
answer
44
views
Looking for an element in a non-Jagged 2D Byte array in C#
I have created a 2D Byte Array with 3 rows and columns (order 3*3 Matrix) and it's not a Jagged Array.
var arr = new byte[3,3];
But now I have to know if a specific element exists in the array or ...
0
votes
2
answers
366
views
Spliting string in LINQ and using 2nd Index value
I am stuck to split an Email to get the Domain of Email in group by clause of LINQ to group the data by domain.
My LINQ is
(
from u in DbContext.UserProfiles
join ap in DbContext.AspNetUsers
...
- 37
3
votes
3
answers
396
views
Why does IEnumerable's Where pass first argument as "this"
I've just started to study on LINQ. The following example uses Where which is one of the standard query operators.
string[] names = { "Tom", "Dick", "Harry" };
IEnumerable<string> filteredNames ...
1
vote
1
answer
205
views
Getting a two dimensional array of all possible unique combination of numbers lower than a mixmum for each cell starting from 1
Hello and thanks for your attention.
(my mathematical vocabulary for English language is rather limited, if you can think of a better title for this question please feel free to edit and thanks for ...
- 730
-3
votes
1
answer
2k
views
How to add/append some objects into an object array [duplicate]
How to add/append some objects into an object array with C#, I can add a static object but I don't know how to add an object with dynamic.
please do me a favor to give me any slight clue to deal with ...
- 8,203
0
votes
1
answer
375
views
Selecting Distinct Items within Array using PowerShell and Linq
I have been banging my head on this problem for a few hours.
I have a multi-dimensional array and I need to select the unique items based on two "columns".
Is there an efficient .Net or otherwise ...
- 73
0
votes
2
answers
677
views
Remove rows where column contains specific text
I want to remove all the rows of the data whose columns contains ? e.g. in around 100 rows for Column Status I am getting value as Unknown?, Error?, InProgress, Done
So , I want to remove all the ...
- 89