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The xml format is a good way to store any hierarchical data. As an example we are using the classification of animals

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I am trying to link multiple values OR in a loop with LINQ.

Situation

Plattform: .net 5 C# 9

We are building a filter logic for a list. In the current case it concerns string values which are to be filtered.
The user can search for one or more values. He can decide if the single search terms are AND/OR linked and if a value is negated.

I saw this entry. But since my values are in the loop, I can't use ||.
https://stackoverflow.com/a/37195788/1847143

Example:

• All animals with "A" in the name
  SELECT * FROM "Animal" WHERE "Name" = 'A';
• All animals with "A" or "B" in the name
  SELECT * FROM "Animal" WHERE "Name" = 'A' OR "Name" = 'B';
• All animals with "A" or "B" or NOT "C" in the name (This would be a meaningless search)
  SELECT * FROM "Animal" WHERE "Name" = 'A' OR "Name" = 'B' OR "Name" != 'C' ;
• All animals with "A" and "B" in the name
  SELECT * FROM "Animal" WHERE "Name" = 'A' AND "Name" = 'B';
• All animals with "A" and "B" and NOT "C" in the name
  SELECT * FROM "Animal" WHERE "Name" = 'A' AND "Name" = 'B' AND "Name" != 'C';

Problem

The AND link with LINQ is no problem. But how can the values be linked with OR?

Code Example ...

not sure if my title is exactly waht I want to accomplish but it was a guess. I'm trying to see if something like the following is possible in PGSQL.

Basically, I have a set of data that I want to pull no matter what. But, if certain columns of data arent null, then I want it to join another table and pull data referencing that data. So, for example, let's say I have data like:

User_Accounts:

userid companyname first name 25df Test Company 1 Bob 921f Test Company 1 Lawrence 882s Company test 2 NULL 8234 Test Company 1 Cleo 8244s Company test 2 Paul 825q Test Company 1 Bruce 5552 B Alpha Company Lenny

Baseball_Rosters:

userid baseball_team company position 25df Atlanta Aliens Test Company 1 P 882s Boston Bruisers Company test 2 DH 8234 California Craisins Test Company 1 1B 8244s Tampa Titans Company test 2 P null Tampa Titans Test Company 1 P 5552 Tampa Titans B Alpha Company 2B 5552 Tampa Titans B Alpha Company SS 921f California Craisins Test Company 1 P 825q Boston Bruisers Test Company 1 P

How would I perform a query to get a result like:

userid baseball_team company first name position null Tampa Titans Test Company 1 null P 25df Atlanta Aliens Test Company 1 Bob P 825q Boston Bruisers Test Company 1 Bruce P 921f California Craisins Test Company 1 Lawrence P

So essentially, inserting the firstname & lastname field if and only if userid is not null? And then to order by userid null first and then in order? Thanks for the help.

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I tried to find this question answered, but I haven't found anything related. I have a variable that can be in a format like 50000.45 or in a format like 0.01. I need to write this variable in a label that is 5 digits wide.

What is the best way to fit the label showing only the most significant digits?

To better explain, I would like to have for example for 50000.45: 50000 for 4786.847: 4786 for 354.5342: 354.5 for 11.43566: 11.43 and for 0.014556: 0.0145

possibly without having to do:

if < then round(variable,xx)

for all cases.

I hope to have explained enough the problem. thanks for your support. Lenny

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Im actually making a mobile app and i'd to setup links to open it when you click on it. I tried to setup app links but i doesn't seem to work... Here's my code :

Manifest.xml

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I have been struggling with this one for a bit so I figured it was time to ask.

I have a list of names:

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I would like to make some field (For example using Form and Select tags)

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basically how do I turn

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I have a parent component, SearchComponent:

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