- Microsoft Visual Studio 2019 Tutorial
- Microsoft Visual Studio Code Tutorial For Python
- Microsoft Visual Studio Code Tutorial Pdf
- Visual Studio Basics Tutorial
- Microsoft Visual Studio Code Python Tutorial
Visual Studio is an Integrated Development Environment(IDE) developed by Microsoft to develop GUI(Graphical User Interface), console, Web applications, web apps, mobile apps, cloud, and web services, etc. With the help of this IDE, you can create managed code as well as native code. Visual Studio Code is a code editor redefined and optimized for building and debugging modern web and cloud applications. Visual Studio Code is free and available on your favorite platform - Linux, macOS, and Windows. It’s been almost 3 years since the first Java language server was developed during a hackathon in a small conference room at Microsoft’s Zurich office with people from Red Hat, IBM, Codenvy and Microsoft, which later became one of the most popular extensions for Visual Studio Code with more than 2.7 million installations. Visual Studio Code, VSCode for friends, is an incredibly powerful editor that's hugely growing in popularity. Find out why, and its main features for developers. Visual Studio Code, VSCode for friends, is an incredibly powerful editor that's hugely growing in popularity. Find out why, and its main features for developers.
-->This article introduces the features of the Visual Studio debugger in a step-by-step walkthrough. If you want a higher-level view of the debugger features, see First look at the debugger. When you debug your app, it usually means that you are running your application with the debugger attached. When you do this, the debugger provides many ways to see what your code is doing while it runs. You can step through your code and look at the values stored in variables, you can set watches on variables to see when values change, you can examine the execution path of your code, see whether a branch of code is running, and so on. If this is the first time that you've tried to debug code, you may want to read Debugging for absolute beginners before going through this article.
Although the demo app is C#, most of the features are applicable to C++, Visual Basic, F#, Python, JavaScript, and other languages supported by Visual Studio (F# does not support Edit-and-continue. F# and JavaScript do not support the Autos window). The screenshots are in C#.
In this tutorial, you will:
- Start the debugger and hit breakpoints.
- Learn commands to step through code in the debugger
- Inspect variables in data tips and debugger windows
- Examine the call stack
Prerequisites
You must have Visual Studio 2019 installed and the .NET desktop development workload.
Nvidia fx 5200 windows 7 64 bit driver. You must have Visual Studio 2017 installed and the .NET desktop development workload.
If you haven't already installed Visual Studio, go to the Visual Studio downloads page to install it for free.
If you haven't already installed Visual Studio, go to the Visual Studio downloads page to install it for free.
If you need to install the workload but already have Visual Studio, go to Tools > Get Tools and Features.., which opens the Visual Studio Installer. The Visual Studio Installer launches. Choose the .NET desktop development workload, then choose Modify.
Create a project
- Open Visual Studio.Press Esc to close the start window. Type Ctrl + Q to open the search box, type console, choose Templates, then choose Create new Console App (.NET Framework) project. In the dialog box that appears, type a name like get-started-debugging, and then choose Create.From the top menu bar, choose File > New > Project. In the left pane of the New project dialog box, under Visual C#, choose Windows Desktop, and then in the middle pane choose Console App (.NET Framework). Then, type a name like get-started-debugging and click OK.If you don't see the Console App (.NET Framework) project template, go to Tools > Get Tools and Features.., which opens the Visual Studio Installer. Choose the .NET desktop development workload, then choose Modify.Visual Studio creates the project.
- In Program.cs, replace the following codewith this code:
Start the debugger!
- Press F5 (Debug > Start Debugging) or the Start Debugging button in the Debug Toolbar.F5 starts the app with the debugger attached to the app process, but right now we haven't done anything special to examine the code. So the app just loads and you see the console output.In this tutorial, we'll take a closer look at this app using the debugger and get a look at the debugger features.
- Stop the debugger by pressing the red stop button.
Set a breakpoint and start the debugger
- In the
foreach
loop of theMain
function, set a breakpoint by clicking the left margin of the following line of code:shape.Draw()
A red circle appears where you set the breakpoint.Breakpoints are the most basic and essential feature of reliable debugging. A breakpoint indicates where Visual Studio should suspend your running code so you can take a look at the values of variables, or the behavior of memory, or whether or not a branch of code is getting run. - Press F5 or the Start Debugging button , the app starts, and the debugger runs to the line of code where you set the breakpoint.The yellow arrow represents the statement on which the debugger paused, which also suspends app execution at the same point (this statement has not yet executed).If the app is not yet running, F5 starts the debugger and stops at the first breakpoint. Otherwise, F5 continues running the app to the next breakpoint.Breakpoints are a useful feature when you know the line of code or the section of code that you want to examine in detail.
Navigate code in the debugger using step commands
Mostly, we use the keyboard shortcuts here, because it's a good way to get fast at executing your app in the debugger (equivalent commands such as menu commands are shown in parentheses).
- While paused in the
shape.Draw
method call in theMain
method, press F11 (or choose Debug > Step Into) to advance into code for theRectangle
class.F11 is the Step Into command and advances the app execution one statement at a time. F11 is a good way to examine the execution flow in the most detail. (To move faster through code, we show you some other options also.) By default, the debugger skips over non-user code (if you want more details, see Just My Code). - Press F10 (or choose Debug > Step Over) a few times until the debugger stops on the
base.Draw
method call, and then press F10 one more time.Notice this time that the debugger does not step into theDraw
method of the base class (Shape
). F10 advances the debugger without stepping into functions or methods in your app code (the code still executes). By pressing F10 on thebase.Draw
method call (instead of F11), we skipped over the implementation code forbase.Draw
(which maybe we're not interested in right now).
Navigate code using Run to Click
- In the code editor, scroll down and hover over the
Console.WriteLine
method in theTriangle
class until the green Run to Click button appears on the left. The tooltip for the button shows 'Run execution to here'.NoteThe Run to Click button is new in Visual Studio 2017. If you don't see the green arrow button, use F11 in this example instead to advance the debugger to the right place. - Click the Run to Click button .Using this button is similar to setting a temporary breakpoint. Run to Click is handy for getting around quickly within a visible region of app code (you can click in any open file).The debugger advances to the
Console.WriteLine
method implementation for theTriangle
class.While paused, you notice a typo! The output 'Drawing a trangle' is misspelled. We can fix it right here while running the app in the debugger.
Edit code and continue debugging
- Click into 'Drawing a trangle' and type a correction, changing 'trangle' to 'triangle'.
- Press F11 once and you see that the debugger advances again.NoteDepending on what type of code you edit in the debugger, you may see a warning message. In some scenarios, the code will need to recompile before you can continue.
Step out
Let's say that you are done examining the
Draw
method in the Triangle
class, and you want to get out of the function but stay in the debugger. You can do this using the Step Out command.- Press Shift + F11 (or Debug > Step Out).This command resumes app execution (and advances the debugger) until the current function returns.You should be back in the
foreach
loop in theMain
method.
Restart your app quickly
Click the Restart button in the Debug Toolbar (Ctrl + Shift + F5).
When you press Restart, it saves time versus stopping the app and restarting the debugger. The debugger pauses at the first breakpoint that is hit by executing code.
The debugger stops again at the breakpoint you set, on the
shape.Draw()
method.Inspect variables with data tips
Features that allow you to inspect variables are one of the most useful features of the debugger, and there are different ways to do it. Often, when you try to debug an issue, you are attempting to find out whether variables are storing the values that you expect them to have at a particular time.
- While paused on the
shape.Draw()
method, hover over theshape
object and you see its default property value, which is the object typeRectangle
. - Expand the
shape
object to see its properties, such as theHeight
property, which has a value of 0. - Press F10 (or Debug > Step Over) a few times to iterate once through the
foreach
loop, pausing again onshape.Draw()
. - Hover over the shape object again, and this time you see that you have a new object with a type
Triangle
.Often, when debugging, you want a quick way to check property values on variables, to see whether they are storing the values that you expect them to store, and the data tips are a good way to do it.Arcsoft photoimpression 6.5 gold keygen. We leave it to your discretion to determine whether this product or how you plan to use is legal. Softfree.eu informs that ArcSoft PhotoImpression 6.5 Gold should be used in compliance with laws and intellectual property rules and the current Penal Code. Do not approve or encourage in any way the use of any software in contravention with the laws in force. Softfree.eu is not responsible for how you will use the information from this description, or how you will be using this program.
Inspect variables with the Autos and Locals windows
- Look at the Autos window at the bottom of the code editor.If it is closed, open it while paused in the debugger by choosing Debug > Windows > Autos.
- Expand the
shapes
object.In the Autos window, you see variables and their current value. The Autos window shows all variables used on the current line or the preceding line (Check documentation for language-specific behavior). - Next, look at the Locals window, in a tab next to the Autos window.The Locals window shows you the variables that are in the current scope, that is, the current execution context.
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Set a watch
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- In the main code editor window, right-click the
shapes
object and choose Add Watch.The Watch window opens at the bottom of the code editor. You can use a Watch window to specify a variable (or an expression) that you want to keep an eye on.Now, you have a watch set on theshapes
object, and you can see its value change as you move through the debugger. Unlike the other variable windows, the Watch window always shows the variables that you are watching (they're grayed out when out of scope).
Examine the call stack
- While paused in the
foreach
loop, click the Call Stack window, which is by default open in the lower right pane.If it is closed, open it while paused in the debugger by choosing Debug > Windows > Call Stack. - Click F11 a few times until you see the debugger pause in the
Base.Draw
method for theTriangle
class in the code editor. Look at the Call Stack window.The Call Stack window shows the order in which methods and functions are getting called. The top line shows the current function (theTriangle.Draw
method in this app). The second line shows thatTriangle.Draw
was called from theMain
method, and so on.NoteThe Call Stack window is similar to the Debug perspective in some IDEs like Eclipse.The call stack is a good way to examine and understand the execution flow of an app.You can double-click a line of code to go look at that source code and that also changes the current scope being inspected by the debugger. This action does not advance the debugger.You can also use right-click menus from the Call Stack window to do other things. For example, you can insert breakpoints into specified functions, advance the debugger using Run to Cursor, and go examine source code. For more information, see How to: Examine the Call Stack.
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Change the execution flow
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- With the debugger paused in the
Circle.Draw
method call, use the mouse to grab the yellow arrow (the execution pointer) on the left and move the yellow arrow up one line to theConsole.WriteLine
method call. - Press F11.The debugger reruns the
Console.WriteLine
method (you see this in the console window output).By changing the execution flow, you can do things like test different code execution paths or rerun code without restarting the debugger.WarningOften you need to be careful with this feature, and you see a warning in the tooltip. You may see other warnings, too. Moving the pointer cannot revert your application to an earlier app state. - Press F5 to continue running the app.Congratulations on completing this tutorial!
Next steps
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In this tutorial, you've learned how to start the debugger, step through code, and inspect variables. You may want to get a high-level look at debugger features along with links to more information.