I have a project in SSIS and I've added an Execute SQL Task which sends its result out to a variable. I wanted to confirm the value because I was worried that it would try to write it out as a resultset object rather than an actual integer (in this case I'm returning a COUNT).
My first thought was just to run it in debug mode and add the global variable to my Watch window. Unfortunately, when I right-click on the Watch window, the option to "Add Variable" is greyed out. What am I missing here?
I've gotten around confirming that my variable is set correctly, so I'm not interested in methods like putting a script in to do a MsgBox with the value or anything like that. For future reference I'd like to be able to watch variables in debug mode. If there are some kind of constraints on that then I'd like to know the what and why of it all if anyone knows.
The help is woefully inadequate on this one and every "tutorial" that I can find just says, "Add the variable to the Watch window and debug" as though there should never be a problem doing that.
Thanks for any insight!
I believe you can only add variables to the Watch window while the debugger is stopped on a breakpoint. If you set a breakpoint on a step, you should be able to enter variables into the Watch window when the breakpoint is hit. You can select the first empty row in the Watch window and enter the variable name (you may or may not get some Intellisense there, I can't remember how well that works.)
Drag the variable from Variables pane to Watch pane and voila!
I know this is very old and possibly talking about an older version of Visual studio and so this might not have been an option before but anyway, my way would be when at a breakpoint use the locals window to see all current variable values ( Debug >> Windows >> Locals )
Visual Studio 2013: Yes to both adding to the watch windows during debugging and dragging variables or typing them in without "user::". But before any of that would work I also needed to go to Tools > Options, then Debugging > General and had to scroll right down to the bottom of the right hand pane to be able to tick "Use Managed Compatibility Mode". Then I had to stop and restart debugging. Finally the above advice worked. Many thanks to the above and to this article: Visual Studio 2015 Debugging: Can't expand local variables?
Related
I've recently been trying to compile several procedures and it all worked great, the compiler showed errors, I fixed them. All was working perfectly.
Except I accidentally clicked "x" instead of minimizing the compiler log tab and now it just won't show up again. I've tried Ctrl shift L, View > Log and nothing. So I'm not entirely sure what happened to it and I really need a fix for it to show messages/errors
We fixed it. Go into C:\Users\your user\AppData\Roaming\SQL Developer\system[version]\o.ide.[numbers]. There you will find a file called windowinglayoutdefauld.xml, you can delete that, restart SQL Developer and all settings will go back to default, with your compiler log!
A visual manual how to close and restore the compiler log window in Oracle SQL-Developer.
Click View/Log
And compiler window appears again
Next time try the menu item "Window > Reset Windows To Factory Settings"
I just upgraded my Visual Studio from 2012 to 2013 and haven't done anything else yet short of installing all the updates recommended.
For whatever reason, when I go into my solution and press F10 or F11, it runs the entire program as if I had pressed F5... F8 works the way F10 used to, but I don't know why the keys I've always used now don't.
I set up visual studio as a VB environment.
How can I fix this?
Thanks!!!
Additional Info:
Just to add on as much information as I can, if I set a breakpoint in my code, then I can use F10 / F11 to continue stepping through my code once the breakpoint is hit and execution is stopped as would be expected.
EDIT 2013-12-31:
Based upon a comment made by Neolisk, it appears this is simply a change in default behavior in Visual Studio 2013... If anyone knows how to change this back to the way it was in 2012, that would be GREATLY appreciated, but at least I now know it's not an error / installation issue.
If 2013 works the same as previous versions, then do the following:
Navigate to Tools > Import and Export Settings
Choose "Import selected environment settings"
On the next screen, choose to save your current setings if you want to.
When you get to the point where you can import, just select "General Development Settings"
That should set everything back to what you're probably used to. Most people are set up using general settings and either don't realize it or just forget.
EDIT: If your issue is that the program executes when you press F10 or F11 when you are not debugging, then I think you might be out of luck. It's done that to me personally since VS 2008 (I'll frequently miss the F12 key when I'm in a hurry), and, after some searching, I think it actually happens to everyone:
Visual Studio - Prevent F11 from starting the debugger?
My guess is that this is a side-effect of not being able to set contextual hot keys based on whether you are or are not debugging. Since F10 and F11 are tied to debug-execution-related operations, my guess is that Visual Studio realizes that it needs to be debugging to process them, and thus starts the program.
ANOTHER EDIT: Of course, it's also possible that you had the scheme set to something else entirely in VS2012. Check out all of Visual Studio's pre-defined hotkeys by environment here: http://msdn.microsoft.com/en-us/library/da5kh0wa(v=vs.120).aspx
If none of those have the mappings that you're used to for F8, F10, or F11, then it's possible that you or an add-on may have had few custom hotkeys defined.
Worst-case scenario, you can simply redefine your shortcuts manually by key in the keyboard settings: Tools > Options > Environment > Keyboard
It sounds like you are in VB settings and not C#. You should try changing your settings to one or the other and see if those debug options change. On my machine
Tools - Import Export Settings - Reset All Settings - C# (If you want F10/F11) VB if you want F8/Shift-F8. It doesn't matter what your settings are you can still code in both languages, but if you are used to pressing F10 to debug VB.NET code you've been using C# settings this whole time. Nothing new with Visual Studio in this regard. I am using VS2013 Ultimate, have been using Visual Studio since VS2003.
The first image is VB.net, second is C# settings
You can try some of these reset settings:
And different combinations thereof, i.e. ResetToBasic first. If does not help, try ResetToC#, then back to Basic. Then try General, back to Basic. See if you can hack your way through like this.
EDIT: I tried my VS 2012, and compared to VS 2013. What you described is completely normal. VS 2012 used to step in Form_Load and similar on F10 and F11, VS 2013 no longer does it. So it seems like your VS 2013 is working as expected.
Microsoft probably has a reason to not allow to step into a property by default.
Properties are supposed to be mostly get and set and not contain a whole lot of implementation in it. But that may not be the case all the time.
If somebody is trying to step into a property that means this developer is suspecting something in that property that may be causing problems. So by default this behavior needs to be reversed and allow stepping into properties.
For now this is how you can enable stepping into properties.
Go to Tools > Options menu in Visual Studio.
Goto Debugging > General menu item in left pane.
In right view you will see and option Step over properties and operators (Managed only). Uncheck this option and then you are all set.
Enable step into properties in Visual Studio Debugger
If the above didn't work then follow this
In the Options.Keyboard page, please select "Debug.StepOver" from the command listbox, and then put focus to the "Press shortcut keys" textbox and press F10, click Assign button to re-assign shortcut, does it work?
You can also try to run Visual Studio under safe mode, which will prevents all third-party VSPackages from loading when Visual Studio starts; if the issue disappear under safe mode, you may consider checking your installed add-ons or VSPackages.
Second, to log all activity of Visual Studio to a log file for further troubleshooting, please use the /Log switch, and post the log file content here, so we can do more investigation on it.
If this feature works well before, and suddenly behave abnormally, it usually indicate that some files or configurations of Visual Studio installation is corrupted or missed, you can:
Restores Visual Studio default settings by using "Devenv.exe /ResetSettings" command. Please backup your settings before restore to default settings.
Repair/reinstall Visual Studio;
To repair Visual Studio In the Add or Remove Programs dialog box, select Visual Studio then click Change/Remove.
I found I had to run VS as Administrator to debug properly. I also do a clean solution prior to debugging, especially on x64 machines. If you put a manual debug breakpoint in the code and the IDE indicates it can't stop at that point, then it's possible that the debugger is out of sync with the source code.
An idea to test it in a short way:
Create a Hello World console app.
1 Module Module1
2
3 Sub Main()
4 Console.WriteLine("Hello")
5 End Sub
6
7 End Module
Build first.
Put the cursor in line 4 (before each step), commands should start Debug Mode if you are in Design Mode.
F10 (StepOver): Should break on line 3
F11 (StepInto): Should break on line 3
CTRL+F10 (RunToCursor): Should break on line 4
If it is working properly: Maybe the assembly which containing the entry point of your program had modified and wasn't been rebuilded, or there is somthing other problem with the point where the control expected to break.
If it doesn't work as expected on the sample, I think you should ask on MSDN FORUM or make a bug report.
I don't know why they might have intent to change this behavior.
It is working for me in my 2013 Express Edition with C# recently.
I found what I think is an acceptable workaround for the non-functioning F10/F11 Keys. They are probably the most used keys in stepping through code, and it is a real pain to click on debug and select the key from the dropdown.
I got around this shortcoming by adding icons to the toolbar for these operations.
If you are not sure how to do this, On the Debug toolbar click on the down pointing arrow near the right side of the bar. Click on Add or remove buttons.
Select Customize...
Select Add Command
Select Debug
Scroll down to the desired key (Step over / Step into)
You once clicked, you will see the two icons added at the left side
of the toolbar, Unfortunately they are the same Icon, but with a
little use, you should be able to select the right key to click on.
I actually prefer this method to trying to remember which function key
to press.
On many branded laptops, there is an extra button "Fn", Press "Fn" and "Esc" together. Functional keys will be enabled in visual studio.
Kindly press Fn key and Esc (with Lock with Fn label).
Sometimes it gets locked and Media Player buttons get activated.
Sounds stupid to ask but what type of keyboard do you have? I know some keyboards have different modes that allow you to set different profiles for keys based upon the application. I use the feature with my Microsoft Natural keyboard. However I have had problems with the profile still being active when I switch into Visual Studio and then F10, etc doesn't work correctly.
I faced the problem that F10/F11 doesn't work but the breakpoint works.
Once I uninstall the Security Software and unload the relevant drives it works again.
So my advice is that. And I guess it's due to the drives, so if these don't work just try to unload those questionable drives may connected with this question.
Using Logitech MX 3000 Keyboard, I've upgraded to the last setpoint version and these keys work now perfectly. (Driver version 5.90.41)
In MS visual studio we just right click add watch.
How does one do this in Xcode?
Use the po command in the Debug area
Set up a breakpoint on the relevant area of code, then when the program stops at the breakpoint, enter commands in the Console in the Debug Area.
The relevant command is po (print object) followed by the expression you want to evaluate.
If the Debug window is not visible in XCode, you can show it via the top menu:
'View' -> 'Debug Area' -> 'Activate Console' (XCode v8.x)
Example
To evaluate an expression like var1/var2 where var1 and var2 are both doubles, enter the following in the Console:
po var1/var2
The Console will return something like:
(double) $2 = 3.085 [no Objective-C description available]
Showing object properties
You can also return a particular property of an object currently used in the code at that breakpoint:
po [bankInfo city]
And it will return something like:
(id) $4 = 0x000069e8 Testville
Note though that the Console doesn't seem to like the dot notation and prefers the square brackets when applicable. For example, this returns an error for me:
po bankInfo.city
I hope this is what you've been looking for.
Gabe's answer is almost there but missing one crucial detail: Select Debugger Output . By default the bottom option is set to Target Output, so the po command doesn't show you anything.
Here is a sandwich app from a tutorial I'm debugging:
Being an xcode newbie and coming from a MS Visual Studio Background, I wanted exactly what the OP was looking for. While playing around from reading Gabe's answer I selected Debugger Output and got what I wanted.
My seniors told to use NSLog(#variable)..........
Set some breakpoints in the begginning of the looping and functions. Once u click on the breakpoint(one similar to arrow) button in the editor window the "Build and debug tool" will get enabled. You can then go to the debugger by clicking the debugger icon. on the right of the debugger window variables will be visible select self->then the instance variable u r going to set watch point.Right click on that and select "watch variable".A trigger point will be set and you will be notified with the value of the variable when changed.
As fas as i understand you would like to see when a variable is changing. For this make a breakpoint and right click on it and choose Edit Breakpoint. A window will appear:
Make sure you choose the right action like Debugger Command or Log Message and check the tick down at the options Automatically continue after evaluating. So you get some kind of action (e.g. logging, sound, etc) and wont stop at the breakpoint.
If you want to know when the variable changes, use a "watch":
Set a breakpoint somewhere in the class in question;
Run the app in the debugger and let it stop at your breakpoint; and
Go to the "Variables" view in the left side of the bottom "Debug" panel and right click on the property in question and choose "Watch".
For example, here, I've stopped at a breakpoint in viewDidLoad, and added a "watch" for total:
(This is Swift, but the same is true for Objective-C, too.)
Now, if I "continue" execution (), Xcode will pause whenever this property changes and I can see at what line of code total is changing, the stack trace to get to that point, etc.
I know in the older versions of Visual Studio, there was an "Add Watch" option where you can choose to stop execution when the value of the field changed. I am using VS 2010, and I can't figure out how to hit the breakpoint when the value of the field changes.
Any ideas?
Data breakpoints is what I remember, your description matches. It used a processor feature, it requires the address of the variable and the size, the processor automatically generates a trap when it detects a write to the memory address. Very nice debugging tool.
Sadly no longer available in managed code, the garbage collector messes it up because it moves objects around while compacting the heap. Which changes their address. The interface between the garbage collector and the debugger isn't strong enough to allow the debugger to track these moves while the compacting is taking place at runtime. No doubt to avoid a serious amount of overhead.
The next best thing you got is a property setter. You can set a breakpoint on it.
Right click on the breakpoint and hit Condition. You should be able to do the same from here.
In vb.net 2010 (I am using the express edition) - set a breakpoint and run up to it. Right click the variable/control name you wish to watch then select add watch from the context menu.
The watch window will appear.
You can type variable names directly in to the watch window, providing they are in scope.
You can right click on a break point and then choose Condition. In the condition box type the name of the variable and select the 'Has Changed' radio button.
I'm trying to watch a variable with Xcode. I'm following the instructions in here by pausing at a breakpoint, selecting Run > Variables View > .... but with the exception of "Enable Data Formatters" the rest of the options are all greyed out. Any ideas?
I'm using Xcode version 3.1.3.
I haven't gotten watchpoints created from the Run menu to work for me either, unfortunately. One thing to be aware of is that when a variable goes out of scope, the watchpoint may become invalid.
If you don't mind getting a little more in-depth, you can use some low-level gdb commands to set a watchpoint for the address of the memory itself. For example, in the guide you linked to, they show how to watch the variable path which is a pointer with the value 0xbfffeb70. To manually set a watchpoint for that address, click in the debugger console (where the debugging output is printed) after the "(gdb)" prompt and type something like this:
watch *((int*)0xbfffeb70)
The cryptic syntax is necessary because gdb expects inputs as C expressions. For a little more detail, visit this link and jump to the section titled "Using hardware watchpoints". (I'm testing on an Intel machine, not sure how PowerPC handles it.) When you set watchpoints this way, Xcode will alert you with a drop-down sheet when a watchpoint is reached and tell you how the value was changed, and gdb will print the same info in the console.
I just ran into this problem. Here is a solution: right click on the variable name and select "View variable in window" from the menu which appears. It should be near the bottom.
Add a breakpoint. Right click in the watch list of the debug area and choose "Add expression..."
If you are getting a different menu, you have to click off of the currently highlighted variable so that nothing is highlighted when you right click.
The Answers given here only work if you use the gdb compiler. For those of you who are looking for an option to set a watchpoint with the lldb compiler I have bad news:
It's not working jet (XCode 4.3.2 with lldb 3.1) even though the lldb docs say you can.
Check out this Email. The lldb commands compared to the gdbs can be found here
I was trying to figure this out in XCode 5. I finally found a "Variables view" button at the bottom right of the output console. It's the little rectangle that will be gray on the left, white on the right if it's not enabled. I'm not sure if this is in XCode 3, but I expect most people have upgraded anyway.