in a .net windows forms project which has 100s of forms, and all those forms has countless custom made controls with base classes involved, its very difficult for me to know where a particular button is, i mean whats the form name which I'm looking at while i'm running the application, and where exactly is the button click event, in code, of the button that I just clicked. Is there a debugging feature in Visual Studio, which would just break the execution for me to the line where the click happened. Can I tell VS to break at which ever Click event comes next?
(running visual studio 2012/13 these days).
thanks.
Just before you click the button in the program do this:
Go to visual studio and pause the program. Just press the pause button.
Then press F11 (Step Into).
Now press the button in the program, and you should be taken into the event handler.
For web projects, the technique suggested by Jakob Olsen will not really work, because you have no active thread in between the calls, and hence no thread to resume upon the next action. However what worked for me was:
Find some code (any code in your app) you know for sure it gets executed and set a breakpoint
Trigger this breakpoint, use SHIFT-F11 to step out until you're out of all methods
Now do the action of which you don't know what code is executed, and it will break
I can suggest partial solution.
If your click events are named like "Button_Click", open Breakpoints windows while in debug and create New breakpoint.
Click OK and you will see list of functions. Check them and click OK. On every function that you have selected will be created a breakpoint.
Related
I'm converting a program from visual basic to C#, and in order to test it I need to change the configs so that when a menu option from a menu that appears after a right-click is pressed it calls the C# code I created rather than the old Visual Basic code. Obviously, that means locating the event handler. Unfortunately, I don't know the name of the menu option being pressed and have yet to guess what it is. Is there a way for me to run the application, and have the program pause (like a breakpoint) at the very first thing it does after the menu-option is pressed in the application? Right now I have a breakpoint on the first line of the method that is run. But is there a way to find the eventHandler that triggers that method, by running the program? Or is there another option to help me find what's triggering it?
When debugging a c# WPF application, is there a way to jump into the debugger immediately after the next mouse click?
Suppose I want to debug what happens when a certain button is pressed.
I can of course figure out what method is executed when the button is pressed, by analyzing the code and resource files, and then set a breakpoint at the start of this method. If I am not familiar with the code, this can take some time to figure out.
However it would be far easier and quicker if I could tell Visual Studio something like:
"Break execution, the next time user code is executed on the gui thread, after the next mouse click"
I.e. something like the "Break all" command (ctrl+alt+break), which does not break immediately, but waits for me to click the button and then break.
Is there a way to do this in Visual Studio?
I'm in a Visual Studio debugging session, debugging a WinForms app, but I think this question applies to an ASP.Net code-behind debug session also. Let's say that I have lots of breakpoints set and I want to test a condition that requires running a setup test case first, then I want to run another test case that exercises the code again. The first time, I have to hit the Continue (F9) button 5 times to progress through the code breakpoints and finally arrive at the point where I'm prompted for input again. Now I want to input some data and I now want to carefully step through all the breakpoints.
Is there some way I can quickly push a button and tell the debugger to skip all those breakpoints during the setup test case entry and just progress to the next data input field? I know about the run to cursor capablilty, but that doesn't seem any easier than clicking thru all of the breakpoints.
I know this may sound trivial, but I find myself in this situation all the time.
I just want a super-continue button.
You can open the Breakpoints window (Debug -> Windows -> Breakpoints) and then you can select multiple breakpoints and disable or enable them as you go:
The best thing i can think of would be to create a condition on the breakpoint to only break when the data is set up.
E.g.
Or if all else fails, set a BreakPoint Hit Count, if you know it'll always be the 6th break that is relevant. E.g.
I did some research on this before asking the question and since I might be asking it incorrectly, I might not have done the right searches here first.
What I am trying to accomplish is when I start to debug or run an application in Visual Studio, is to have the IDE show me what methods are executing when I do something in the GUI/application.
For instance if I click a button in the GUI labelled "Search", I want to see the chain of events/methods that execute for this process. This I am not sure of. I hope I have asked the question correctly. Thank you for your time.
Have a try with IntelliTrace.
Make sure IntelliTrace is enabled and call information is selected;
Launch your GUI application, and perform what action you want;
In IntelliTrace window, click Break All. If IntelliTrace window is not displayed, click Debug -> Windows -> IntelliTrace Event;
Expand the event you are interested, for example, 'Clicked Search', and click Call View link;
You can see call stack you are interested.
There are two ways to approach this:
If you have no idea where the code you are looking for is, then simply start your program with a Profiler such as JetBrains dotTrace. Then, get ready to push the button, click "Start Profiling", click the button, and then as soon as the operation is finished, click "Get Snapshot". Now, use dotTrace's Call Tree to see which methods called which. I use this technique all the time for just this purpose!
In this view, you can use the arrows key to navigate the method-calls tree.
If you have a general idea of which class[/es] get invoked when you hit the button on the GUI, but don't know exactly which methods are called, you can use OzCode's "Add Breakpoint to Every Method" on a class, so that even if you don't know the exact method that's about to be called, whenever the class is accessed, you'll break into the debugger and be able to explore.
Due Diligence Disclaimer: I am a co-creator of OzCode.
You can use the Runtime Flow tool (commercial, developed by me) to see the chain of events/methods in a .NET application for GUI actions.
I am trying to work on this website and I am a bit new to Visual Studio and whatnot. I would like to have a step through action whenever I click on certain icons on the website. Basically it is a lot of code, most of which I am learning, and I need to know where I am sending control when I click certian icons.
Any tips?
Insert break points in your code (click the left margin in the code windows). Your application will then stop, and you'll be sent to Visual Studio to do stuff when the code hits the break points. You also have functions to go through the app line by line from a break point when VS is in debug mode.
Well, the Button that you click must have a Click Event Handler in the code behind file. You can go to that code and add a break point by pressing F9 key or use Debug > Toggle Breakpoint, which makes debugger break when that line of code is executed, after which you can use F10 key or use Debug > Step Over to move debugger to next line after executing the current line. While debugging, you can use mouse hover to know values of variables.