C# Invoke Action Cross Thread Access

greetings, im new to programming.

at the moment my application uses delegates to process/execute methods that reside in a another class/object.

but i was getting an error stating that they were residing in separte threads. so after searching the web i came up with this:

this.Invoke(new Action(delegate() { this.ChatRichTextBox.AppendText(EventArgs.commMessage); }));

this has worked fine accept i have no idea whats going on. i just pasted the code and it worked.

at present now though i have a need for doing this differently as the compiler says it cant do > < != operations within开发者_开发知识库 this action.

please advise on how best to implement this?

thank you very much.

Access to Windows Forms controls is not inherently thread safe. If you have two or more threads manipulating the state of a control, it is possible to force the control into an inconsistent state. Other thread-related bugs are possible, such as race conditions and deadlocks. It is important to make sure that access to your controls is performed in a thread-safe way.

It is unsafe to call a control from a thread other than the one that created the control without using the Invoke method.

• MSDN: "How to: Make Thread-Safe Calls to Windows Forms Controls"