I want to set a condition on all entites to hide the ones that are deleted.

I want to set a condition on all entites to hide the ones that are deleted.

I’m encountering an issue with using LINQ to manipulate XML. To demonstrate, I created a simple test with two XML files. The problem arises after I add a node; altering its information doesn’t change the added node. However, if I add this node along with its parent node, it does change. I’m puzzled because I didn’t create a new instance at all. Any assistance would be appreciated.
test2.xml

I have this view model that is List contain startdate and End date I want change this range list to other that if difference between next start and end date is 1 merge this range to each other for example

I have this list that involved start and end date. I want if different is 1 day merge the range for example

I have several products that go through similar processes till they are finished and i want to calculate the duration for each step. Here an example

My .csv is in the format –

I have a Dictionary<string, DemoRecord> with DemoRecord having a field Size.
I now want to calculate the sum of all sizes using LINQ. Here’s the example

I have a Dictionary<string, DemoRecord> with DemoRecord having a field Size.
I now want to calculate the sum of all sizes using LINQ. Here’s the example

I could not find or figure out similar LINQ example.