invoke

问题 I have two methods, MethodA & MethodB . MethodB has to run on the UI thread. I need them to run one after the other without allowing MethodC to run between them. MethodC is called when a user clicks on a lovely little button. What I did to ensure this is put a Lock around the code thus: lock (MyLock) { MethodA(param1, param2); MyDelegate del = new MyDelegate(MethodB); if (this.IsHandleCreated) this.Invoke(del); } And for MethodC : public void MethodC() lock (MyLock) { Do bewildering stuff....

问题 I have a function that helps me close forms without getting crossthread errors: public void OutsideClose(long Id) { MessageBox.Show(""); if (InvokeRequired) { Invoke(new Action<long>(OutsideClose), Id); } else { var asdf = ListForm.Find(a => a.Id == Id); if (asdf != null) { asdf.Close(); } } } For some reason, if I call this invoke twice, instead of closing the form the second time, it goes to this dispose method: protected override void Dispose(bool disposing) { if (disposing && (components

问题 Trying to run an command-line executable from within a PowerShell script, unfortunately the current limitation is the host running only version 2. The command runs fine, however it appears to only be partial output that is added to the variable, and just by chance the most important information is being missed. Is there anyway to capture everything into the output? $output = Invoke-Expression ($itemCommand) Write-Output $output Testing on v3 and v4 works just fine, in fact was able to get

问题 This question already has answers here : What is the point of invokeinterface? (2 answers) Closed 3 years ago . Is there any reason for making the instruction to invoke non-static non-constructor method into two distinct instruction instead of one unified instruction, like invokeinstance ? Does it has anything to do with some random internal JVM mechanism or it's yet another horrific legacy issue? I know we have invokespecial because invoking constructor needs name ckecking, marking one other

问题 I want to invoke the click on a page where you fill data too. I tried doing it with two httpwebrequests where one is for the page and one is where it transfers the session information and makes an account on the site which is the goal of my program. Everytime I tried to do it with two webrequests a certain field wasnt filled in but when I did it with one everything was filled out. So basically is it possible to invoke a click on a page with one httpwebrequest? 来源： https://stackoverflow.com

问题 Now I can use Invoke.invokeApplication() to invoke a system application in blackberry, such as Messages, Calendar, etc. however, I don't know how to launch "Files" application, which managers files of blackberry smartphone, and locate to a desired path. could you kindly give me an answer? thanks a lot! 回答1: here is a link that describes how to invoke a BlackBerry® Device Software application, such as the contacts application, the phone application, and the media application. 来源： https:/

问题 I'm running a BackgroundWorker which suppose to update my UserControl . I tried Invoking after checking InvokeRequired property: private void bgwHighlightText_DoWork(object sender, DoWorkEventArgs e) { tmpRich.SelectedRtf = myRtf; if (_ucResultRich.InvokeRequired && _ucResultRich.rchResult.InvokeRequired) _ucResultRich.Invoke(new Action(() => _ucResultRich.rchResult.Rtf = tmpRich.Rtf)); // Debug pointer stops here //Rest of the code } I also tried to invoke the RichTextBox inside my

问题 Is there any way that Vala supports Self Invoking? Either with a class, or with a method? Javascript supports self invoking like below. Which is what im looking for. (function(){ // some code… })(); I'm attempting to load a class into a hashmap for dynamically loading. 回答1: using Gee; [CCode (has_target = false)] delegate void MyDelegate(); int main() { var map = new HashMap<string, MyDelegate>(); map["one"] = () => { stdout.printf("1\n"); }; map["two"] = () => { stdout.printf("2\n"); };

问题 I am using the following command to get weather forecast data from Dark Sky... Invoke-RestMethod -Method Get -Uri "https://api.darksky.net/forecast/[myAPIkey]/25.1234,-95.1234,2018-12-25T12:00:00?exclude=currently,minutely,hourly,flags&units=us" -Headers $headers | Select-Object -ExpandProperty daily" This is the weather information that is returned... {"latitude":25.1234,"longitude":-95.1234,"timezone":"Etc/GMT+6","daily":{"data":[{"time":1545717600,"summary":"Mostly cloudy starting in the

问题 I am trying to write a multithreaded WinForm in C++/CLI app using VS2012. I know that only the UI thread can update a control and I have been using delegates and the invoke methods. However, I have run into a memory access issue when using BeginInvoke that I do not see when using Invoke. Delegate Function: public: delegate void pictureboxShowDelegate(int tChannelNumber,System::Windows::Forms::PictureBox^,System::Drawing::Bitmap^ colorImage); Called Function: void DrawCVImageShow(int