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Posted Aug am saleem alsaleh. Add your solution here. OK Paste as. Treat my content as plain text, not as HTML. Existing Members Sign in to your account.

This email is in use. Do you need your password? Submit your solution! When answering a question please: Read the question carefully. Understand that English isn't everyone's first language so be lenient of bad spelling and grammar. If a question is poorly phrased then either ask for clarification, ignore it, or edit the question and fix the problem. Insults are not welcome. Don't tell someone to read the manual.

Chances are they have and don't get it. Provide an answer or move on to the next question. Let's work to help developers, not make them feel stupid. Related Questions. The operation could not be completed visual studio. Migrate visual studio website and visual studio project from my laptop to another computer. Not enough storage is available to complete this operation Error in Visual Studio Upgrading company's internal record keeping systems.

Visual Studio Setup Not enough storage is available to complete this operation. Visual Studio Startup error: The operation could not be completed. How to link raylib to Microsoft visual studio ? Ng' is not recognized as an internal or external command, operable program or batch file. Visual Studio in a VM. Of course, the easy fix for the buildup of compiler warnings is to set aside regular time blocks to address them.

Spending a few seconds on each warning now can save hours down the road. See this article for more. Disposing objects before all references to them are out of scope is a housekeeping issue. While not exactly a. NET error, using too much exception handling with nested methods is definitely a mistake. This one creates a lot of redundant code and a real performance drain.

The best practice here is using nested exception handling, which performs the exception handling only once:. For a deeper look at this mistake, see this article. The code seems fine until we try to enumerate the collection. This step will ensure all LINQ queries get evaluated right away.

See more on this here. Iterating through long lists of records is far from efficient. Rather than rely on a foreach loop or a for loop, use LINQ. NET that makes it easier to query objects like long lists or collections. The code above returns 1, customers. For more, see this post. This C error comes from executing code before its time. This can happen when we call an overridden method straight from the constructor of a base class.

To fix the problem, first mark your class as sealed. Take a look at the code below. It tries to add up the numbers from one to ten. Can you see the error? The answer is zero! We should have set the startLoop variable as 1, and endLoop as To nip logic errors in the bud:. Strings are immutable in. The example below shows how forgetting that strings are immutable can lead us into a problem.

This happens when we use lock with poor code synchronization. The example below checks for curse words in a string, printing a warning if it finds one. It also performs several other operations.

For instance, two threads might try to update the same counter at the same time, causing an exception. We have to use the try-catch block because something might have happened to our file. Use try-catch blocks to avoid an error arising from these exceptions. See this tutorial for a good explanation of the different kinds of exceptions, plus whether and how to handle them. Apart from being a popular developer forum, this is also a common error. This one is something like an OutOfMemoryException because it means your code has exceeded a memory boundary.

The simple C example below shows an infinite recursion that will trigger a StackOverflowException. To avoid the StackOverflowException error, try not to have objects mutually reference each other whenever possible. See this discussion and this article for more insight. StackOverflow and ExpertsExchange. Using busy-wait instead of correct thread synchronization can deliver a troublesome error.

Some developers will try to use something like Thread. Sleep to interrupt an infinite loop. In general, we should only use Thread. The file does exist, but between the check and the next operation, the file gets deleted. That said, most exceptions should be avoided whenever possible by writing code that renders them unnecessary. Consider the following three exceptions:. If we use the int. TryParse method instead of an exception, we get a 0 response. That means this method avoids the need for complex and potentially buggy exception handling.

Certain assumptions about how multithreading works can lead us to unexpected problems. These are especially likely when working with shared state. Often, the mistakes arise when we think multithreaded code works in the same way as single-threaded code. One example is a torn read from non-atomic access to a variable. The following code will return unwanted values:. The problem occurs because one thread can read the value of sharedState halfway through a write by another thread.

For a detailed breakdown of incorrect multithreading assumptions in. NET and how to fix them, see this in-depth tutorial. A nullable value passed to the stack will create garbage. For a more detailed explanation of this paradox and how to fix it, see this post. This common mistake is really one of omission.

It can result in user problems with no indication of what went wrong. Consider the case of a user registration functionality with unlogged exceptions. In this case, if registration fails, our log stays empty. Of course, the fix for this error is to add logging to the try-catch block. To see the full tutorial, click here. Contention happens when two or more threads try to access the same resource at the same time.

They contend for the resource. This situation causes several issues. Even when we use thread-safe coding, contention can still add overhead. For example, when we use the lock keyword, we force some threads to wait while one thread accesses a scope. The following multi-threaded code actually works worse than a single-threaded version would, because it creates a lot more overhead while some threads wait.

Then, let each thread perform a local count before it updates the global one. To see how that works, take a look at this article. Using old, outdated cryptographic algorithms is one of the most easily avoided errors. NET, using the right collection type can save time and avoid errors. Below is a list of the most commonly used C collections. This oversight can leave behind an unwanted strong reference. In the code below, we subscribe to an OnPlaced event in our Order class, and the following code executes on a button click:.

However, a reference to the Order object is still held by the OrderPlaced event handler. The Order object is therefore kept alive, even though we removed it from the collection. For more information on this, see:. This WCF error happens when we fail to keep both getter and setter in our code when using the ReadOnly shorthand property declaration with the DataMember attribute.

We can circumvent this problem by setting a block with empty brackets, as shown in this article. When we use WCF with Visual Studio, we can run into a problem that comes from default configurations.

It therefore adds a set of default endpoints to your service. This can result in the use of an incorrect service name. See this tutorial for more. The sample settings for the file are shown below:. For steps to avoid making these common mistakes, see this blog post from Microsoft. Tracing is a very useful. NET debugging tool. In the configuration above, any user can access a detailed list of all recent requests to the app.

The best way to prevent hacks through tracing data is to disable tracing. For more info, see this tutorial. With the above configuration, hackers get good information about the source of errors that can help them learn to pick our coding locks.

Default ASP. NET version and framework, plus the exception type. WPF has several data binding options. If we break them, they can cause memory leaks within our applications. For example, look at the class shown below:. With the example above, in certain cases, WPF will create a runtime leak by creating a reference to the System. PropertyDescriptor class. Therefore, our source object remains in memory.

XRSF tokens protect against cross-site request forgeries. We need to use them any time the browser can authenticate the user implicitly.

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