I have the following method signature: public static void InvokeInFuture(Delegate method, params object[] args) { // ... } The delegate and the arguments are saved to a collection for future invoking. Is there any way i can check whether the arguments array satisfies the delegate requirements without invoking it? Thanks. EDIT: ...
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...
Hi all, I'm developing a serial port communication application. I've written a class. In serial port's DataReceived event, I need to invoke a method to do some string operations. I want to make these operations in another thread. But since my application is not a windows from application (it's a class only), it does not have the Invoke...
Say I have the following class/Form (semi psuedo): public partial class X : Form { private DataTable dt; private BackgroundWorker bg; public X() { dt.Columns.Add("A"); dt.Columns.Add("B"); dt.Columns.Add("C"); } private void button_Click(...) { bg = new BackgroundWorker(); ...
Project is C#. So I have a bunch of multithreaded code that is designed to be run as a library. It's in a seperate project from the UI. My library has a central object that needs to be created before anything that would fire off events is created. Is it possible for this master object to be passed in some objects so that my events can...
Hi... I get the "cross-thread operation not valid" here: if ( vlc.State == VlcPlayerControlState.PLAYING ) { if ( vlc.InvokeRequired ) { vlc.Invoke( new MediaPlayerNoParameterDelegate( vlc.Stop ) ); } else { vlc.Stop(); // debugger point...
In the last question http://stackoverflow.com/questions/1952201/display-progress-bar-while-doing-some-work-in-c, people has recommend use of BackgroundWorker. I thought in BackgroundWorker DoWork method you can update the GUI directly, but why this function call need to be called using Invoke. toolTip.SetToolTip(button, toolTipText); ...
My question is this: If I'm going to build a DynamicMethod object, corresponding to a ConstructorInfo.Invoke call, what types of IL do I need to implement in order to cope with all (or most) types of arguments, when I can guarantee that the right type and number of arguments is going to be passed in before I make the call? Backgr...
Sup Guys, I Have a Function on my frmMain Class wich will update my control to something else after an invoke. When i type "?Label1.Text" on the Immediate Window, the text property IS updated, but when i go check the Form, nothing happened. The code is just like this Public Sub UpdateUI() If (Me.InvokeRequired = True) Then ...
hi, i want to invoke a method using reflection. i am having two projects AA and BB. AA has dependency on BB but BB does not have. Now the use case is that i have to call a class of AA from BB. can any one suggest me how to do that.. i have used ReflectionUtils class for the same.. Method getMethod = null; getMethod = ReflectionUtils....
I'm using the following method to invoke a class inside a jar file: invokeClass("path.to.classfile", new String[] {}); public static void invokeClass(String name, String[] args) throws ClassNotFoundException, NoSuchMethodException, InvocationTargetException, MalformedURLException { File f = new File(System.getProperty("user.home") ...
(I have a workaround for this problem, but it's not the first time I've been bitten, so I'm trying to understand exactly what's going on.) From my application, I ShowDialog a form. On the form is a button, which when clicked calls code on another (non-Gui) thread. The non-GUI thread sends back statuses (Pushed then Released) via a Con...
I load dynamically an external class from my eclipse rcp application with urlClassLoader. The invoke()-method returns an Object of self-defined Type. ClassLoader oldClassLoader = Thread.currentThread().getContextClassLoader(); URLClassLoader cl = URLClassLoader.newInstance( url); Thread.currentThread().setContextClassLoader(cl); S...
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.AppendT...
Hello everybody, hope you're well. I'm facing a curious problem with BeginInvoke and I really really need your help ! I have a class Reporting which contains multiple instances of type Report Class Reporting : UserControl { //Reports are inherited from UserControl Report _report1; Report _report2; Report _report3; //Instanc...
I have read where an event is triggered on another thread from the one that created the controls on a Windows Form. Therefore, the event handler can't directly update the controls (like changing a button's color). I read the explainations about Invoke or BeginInvoke being needed. My question: Why can't an event handler just be passed ...
How do I invoke an Adobe Batch Sequence (.sequ file extension) from a command prompt or desktop icon? ...
Hi all, I try to run a jar using reflection with the the getMethod and invoke method but ran in trouble with the arguments passed to the invoke method: String mainClass = myprog.Run; String[] args = new String[2]; args[0] = "-a"; args[1] = "-c ./config/param.xml" ClassLoader classLoader = createClassLoader(getClassPath()); // Invoke ...
Hello, I am trying to invoke a method via reflection with parameters and I get "object does not match target type". If I invoke a method without parameters it works fine. Based on the following code if I call the method Test("TestNoParameters") it works fine. However if I call Test("Run") I got an exception. Is something wrong with my c...
In my code below, I am using Process objects to execute a series of DOS batch files. I'm shortening the list of scripts for example's sake. The subsequent (1+) scripts execute via an event handler (instead of a for loop). That way, each subsequent script runs ONLY when the previous one finishes. Now for some reason as I execute the 2nd ...