invoke

I would like to invoke a method, using Java Reflection. The problem is that this method (which I wrote) throws an Exception (I created a myCustomException ). When I add a try/catch clause, I can't run my project, because Eclipse says "the catch clause is unreachable". Here is when I try to invoke myMethod in the class MyClass : 270. myMethod.invoke(null, myParam); // NB : null because myMethod is static When myMethod does not throw a MyCustomException , eveything is fine. But when it throws a MyCustomException , I get this error message : Let's say I try to invoke fooMethod() , which is in the

The following code demonstrates my dilemma. The code creates a background thread which processes something, then Invokes the UI thread with the result. It may throw an exception if the background thread calls Invoke on the form after the form has closed. It checks IsHandleCreated before calling Invoke, but the form might close after the check. void MyMethod() { // Define background thread Action action = new Action( () => { // Process something var data = BackgroundProcess(); // Try to ensure the form still exists and hope // that doesn't change before Invoke is called if (!IsHandleCreated)

I'm currently working with a specialized, interpreted, programming language implemented in Java. As a very small part of the language, I'd like to add the ability to make calls into Java. Before I dive into all of the nitty-gritty of reflection, I was wondering if anyone knew of a general library for doing the "backend" part of invoking Java code reflectively. That is, I parse a string (I define the grammar) into some data structure that represents a Java method call (or constructor, or field access) and then pass that data structure to this library that invokes the call and returns the result

Greetings, I am developing some application in C#. At the moment I'm dealing with threading and I have a question that I have in my mind. What is the difference between Invoke and BeginInvoke? I read some thread and I found some useful information here: here However what is the difference between Invoke and BeginInvoke in the following code: private void ProcessRoutine() { for (int nValue = StartFrom; nValue <= EndTo; nValue++) { this.Invoke(this.MyDelegate, nValue); //this.BeginInvoke(this.MyDelegate, nValue); } MessageBox.Show("Counting complete!"); } private void MessageHandler(int progress

I am trying to read a combobox.Text from a thread other than the thread it was created on but I am getting the error: An unhandled exception of type 'System.InvalidOperationException' occurred in System.Windows.Forms.dll Additional information: Cross-thread operation not valid: Control 'levelsComboBox' accessed from a thread other than the thread it was created on. I have used .Invoke before but only to set properties, how can I use it to read combobox.Text? Because .Invoke returns void and I need a string. Or is there another way to do it without the Invoke? You can do it like this: this