How Can I Use Reflection to Invoke Private Instance Methods in C#?

Leveraging Reflection to Call Private Instance Methods in C#

Dynamically invoking a private method from within the same object requires using GetMethod() with the correct BindingFlags. The default behavior of GetMethod() only returns public members.

To access private instance methods, modify your code like this:

<code class="language-csharp">MethodInfo dynMethod = this.GetType().GetMethod("Draw_" + itemType,
    BindingFlags.NonPublic | BindingFlags.Instance);
dynMethod.Invoke(this, new object[] { methodParams });</code>

The BindingFlags enum controls the method search. BindingFlags.NonPublic includes private methods, and BindingFlags.Instance ensures you're targeting an instance method (not a static one).

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