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PO
 

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  1. PO
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    <p>You can do it with Predicate and Action stored in a Dictionary. I am suggesting Action here since the code snippet doesn't seems to return anything</p> <pre><code>public class IterationExample { private readonly Dictionary&lt;bool, Action&gt; dictionary; public IterationExample() { dictionary = new Dictionary&lt;bool, Action&gt; { { true, CollectionOneIterator }, { false, CollectionTwoIterator } }; } public void PublicMethod() { dictionary[condition](); } private void CollectionOneIterator() { foreach (var loopVariable in Type1Collection) { //Your code here } } private void CollectionTwoIterator() { foreach (var loopVariable in Type2Collection) { //Your code here } } } </code></pre> <p>With this way the readbility and testability of your code improves and also avoids long methods.</p> <p>Edit:</p> <pre><code>public class Entity { public IList&lt;string&gt; Type1Collection { get; set; } public IList&lt;string&gt; Type2Collection { get; set; } } public class ConsumingClass { public void Example() { var entity = new Entity(); entity.PublicMethod(); } } public static class IterationExample { private static readonly Dictionary&lt;bool, Action&lt;Entity&gt;&gt; dictionary; static IterationExample() { dictionary = new Dictionary&lt;bool, Action&lt;Entity&gt;&gt; { { true, CollectionOneIterator }, { false, CollectionTwoIterator } }; } public static void PublicMethod(this Entity entity) { dictionary[condition](); } private static void CollectionOneIterator(Entity entity) { foreach (var loopVariable in entity.Type1Collection) { //Your code here } } private static void CollectionTwoIterator(Entity entity) { foreach (var loopVariable in entity.Type2Collection) { //Your code here } } } </code></pre>
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    1. POHow to use the same foreach code for 2 collections?
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      1. PTQuestion
    1. PTAnswer
    1. USKrishnaswamy Subramanian
    1. USKrishnaswamy Subramanian
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    1. COThe types I am using are actually Entity Objects, I believe I can't modify modify the classes as you mention.
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      1. PO
      1. USAdel Khayata
    2. CO@AdelKhayata you can use extension method to overcome this, please refer my updated answer
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      1. USKrishnaswamy Subramanian
    3. COHaving the same code in two separate methods (`CollectionOneIterator` and `CollectionTwoIterator`) does not address the original problem of having the same code duplicated in two places.
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      1. USEdmund Schweppe
 

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