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I would like to have a LINQ statement that calls the property IsValid.
If all elements returned true, I want the statement to return true as well.
How can it be done?
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Using Enumerable. To determine if two lists are equal, where frequency and relative order of the respective elements doesn't matter, use the Enumerable. All method. It returns true if every element of the source sequence satisfy the specified predicate; false, otherwise.
The Any method checks whether any of the element in a sequence satisfy a specific condition or not. If any element satisfy the condition, true is returned.
C# Linq Distinct() method removes the duplicate elements from a sequence (list) and returns the distinct elements from a single data source. It comes under the Set operators' category in LINQ query operators, and the method works the same way as the DISTINCT directive in Structured Query Language (SQL).
var allValid = myList.All(item => item.IsValid);
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