Wen Ching's Blog

Now I am moving towards the Standard Query Operators in LINQ programming. Things are getting 

more interesting this time. 

Question: What is OfType Operator?

Answer: OfType operator enables you to restrict or focus on a specific result set, say you only 

want all the possible integers which are available in a particular array of object.

Example:

object[] arrValues = {1, 2, 8, 1.1, 5.9001, "chua", 'z', 'r', true, 4, false, "ching"};

// Defines a list of possible formats to be displayed at end results

// expecting strings only

var strResults = arrValues.OfType<string>();

// expecting integer only

var intResults = arrValues.OfType<int>();

// expecting double only

var doubleResults = arrValues.OfType<double>();

// expecting characters only

var charResults = arrValues.OfType<char>();

// expecting boolean values

var boolResults = arrValues.OfType<bool>();

// display the bool values

foreach (var result in boolResults)

{

Console.WriteLine(result);

}

Cheers.