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Set property if exists in another list


Set property if exists in another list

By : user2951662
Date : November 18 2020, 11:13 AM
hope this fix your issue I have two lists of type Derp: , Try this:
code :
b.ForEach(x => {if (a.Contains(x)) {x.Valid = true;} });


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How to get a List of Integers from a Property when another property exists within a List<int>?

How to get a List of Integers from a Property when another property exists within a List<int>?


By : Randy
Date : March 29 2020, 07:55 AM
this will help Trying to get a return value of List where one variable is a class, with properties ID and ParentID, and another variable is an List with all Parent IDs in there. I want to return all IDs from the class variable that have match inside of List variable where ParentID exists. , Sounds fairly straightforward, unless Ive misunderstood the question
code :
var matched = _SubCategories.Where(sc => _ParentCategoryIDs.Contains(sc.ParentID))
                      .Select(sc => sc.ID)
                      .ToList();
var result = String.Join("|",matched);
How to check if a property from an object in a List<T> exists in another List<T>?

How to check if a property from an object in a List<T> exists in another List<T>?


By : user4555947
Date : March 29 2020, 07:55 AM
hope this fix your issue This should give you an enumeration of the JoinedDiscounts in joinedDiscounts that contain a Product in products.
code :
joinedDiscounts.Where(disc => disc.Products.Any(prod => products.Contains(prod)))
Find in list of object all items with property exists in other list

Find in list of object all items with property exists in other list


By : user1977751
Date : March 29 2020, 07:55 AM
I wish this help you The error message is pretty clear. You cannot use Any with a local collection like this List but you can use Contains. You also want !Contains:
code :
results = results.Where(n1 => !positions.Contains(n1.position));
Use LINQ to remove items in List<object> where a property exists in List<string>

Use LINQ to remove items in List<object> where a property exists in List<string>


By : user2523289
Date : March 29 2020, 07:55 AM
seems to work fine Any enables you to check if any item in a collections matches some predicate. So you could define the predicate to be "if any item matches the current":
code :
fewBarNew.Where(f => !existingProviderIdList.Any(ep => ep == f.ProviderID));
var result = fewBarNew.Where(f => !existingProviderIDs.Contains(f.ProviderID));
var existingProviderIDSet = new HashSet<string>(existingProviderIDs);
var result = fewBarNew.Where(f => !existingProviderIDSet.Contains(f.ProviderID));
How to check if a property exists before trying to add to list

How to check if a property exists before trying to add to list


By : user3436361
Date : March 29 2020, 07:55 AM
This might help you Instead of deserializing to ExpandoObject, create an actual model that represents your data and use that. If you don't have the necessary keys in your json, your model will be null and then you can just do a null check.
code :
public class Activity
{
    public string Key {get;set;}
    public DisplayProperties DisplayProperties {get;set;}
}

public class DisplayProperties
{
   public string Description {get;set;}
   public string Name {get;set;}
   public string Icon {get;set;}
   public bool HasIcon {get;set;}
}


var activity= response.Content.ReadAsAsync<Activity>().Result;

if(!string.IsNullOrWhiteSpace(activity.Key) && !string.IsNullOrWhiteSpace(activity.DisplayProperties?.Name)
//add to list
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