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    <p>I think a bit of code will help illustrate what setters and getters are:</p> <pre><code>public class Foo { private string bar; public string GetBar() { return bar; } public void SetBar(string value) { bar = value; } } </code></pre> <p>In this example we have a private member of the class that is called bar. The GetBar and SetBar methods do exactly what they are named - one retrieves the bar member, and the other sets its value.</p> <p>In c# 1.1 + you have properties. The basic functionality is also the same:</p> <pre><code>public class Foo { private string bar; public string Bar { get { return bar; } set { bar = value; } } } </code></pre> <p>The private member bar is not accessible outside the class. However the public "Bar" is, and it has two accessors - get, which just as the example above "GetBar()" returns the private member, and also a set - which corresponds to the SetBar(string value) method in the forementioned example.</p> <p>Starting with C# 3.0 and above the compiler became optimized to the point where such properties do not need to have the private member as their source. The compiler automatically generates a private member of that type and uses it as a source of a property.</p> <pre><code>public class Foo { public string Bar { get; set; } } </code></pre> <p>what the code shows is an automatic property that has a private member generated by the compiler. You don't see the private member but it is there. This also introduced a couple of other issues - mainly with access control. In C# 1.1, and 2.0 you could omit the get or set portion of a property:</p> <pre><code>public class Foo { private string bar; public string Bar { get{ return bar; } } } </code></pre> <p>Giving you the chance to restrict how other objects interact with the "Bar" property of the Foo class. Starting with C# 3.0 and above - if you chose to use automatic properties you would have to specify the access to the property as follows:</p> <pre><code>public class Foo { public string Bar { get; private set; } } </code></pre> <p>What that means is that only the class itself can set Bar to some value, however anyone could read the value in Bar.</p>
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