C# Reference - C# Modifiers - readonly - C# Reference - C# Modifiers - readonly
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C# Reference - C# Modifiers - readonly

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  • C# Modifiers: [readonly] Reference from Microsoft®


    • Use the readonly keyword on a field (aka variable) to ensure that it cannot be altered. The difference between a constant and readonly field is that a readonly field can also be changed within the constructor (see Class and Struct Constructors) method body of a class (a constant cannot). public class myClass { public readonly String myString = "OK!"; // constructor method: public myClass() { // we can change the myString field from here too! myString = "NOT!"; } }