There is some kind of mistake (like an illegal character or it can be something else) that makes everything that tries to deal with this path abandon; to say, “You know what? I can`t do with it what I have to do because it has an illegal form. It`s not fair. There is something wrong with this specification of a file. Hi.I gets the following error: “The path is not of a legal form” in C# in the code Run the application again, let it read the text file – does it read it? (assuming the path seems correct) Open the text file, does the path look correct? (publish a single line) A “path” is initially the string that indicates where a file is located on your computer. Now, what happens in a case like this (“This path is not a legal form”) is that there is some kind of error in the path specified by an application`s configuration setting. When you read the file paths in the list box, make sure that the full path to the file is first displayed in a correct format, for example: @Kakooza-Allan-Klaus Your path may contain an invalid character. Use the following link to learn more: 3 – I tried Trim(),TrimEnd(),TrimStart() and it doesn`t work. Error: “The way is not of a legal form”, which of course involves an exception, because the way is an illegal way with which the class can work. It must be a backslash “ instead of a front `/`. For example, if you have a file in a folder named My Documents at the root of your C drive and the document name is document.doc, the full path is C:/MyDocuments/document.doc.

So I can`t really say where it came from or what to do about it. But I can at least talk a little bit about what it means to have a legal form. This gives all the information to find this file on your hard drive: The exception occurs while processing a Telerik report that contains a resource specified by the file path, for example, =`C:PicturesMyImage.png. ” as the PictureBox.Value property. When I start, the message “The path has no legal form” appears. And sometimes when browsing, this is also displayed. What does that mean? The path is not a legal form An error message is raised when processing a Telerik.Reporting.Report in a project that targets the .NET 4.6.2 Framework. Well, this of course (what I just described) has what I consider a “legal form”. Unfortunately, I can`t tell you what, because it really depends on where the message comes from (which is often in the title bar of the message box) or how it complains. For example, he may include the path (which, according to him, has no legal form) in the message complaining that the path has no legal form. This happens when I just started the automation of main.xaml And it worked How exactly is it? To me, it seems that the current line has invalid path characters or something like that.

Save the Listbox items (which contain the path and file name) Well, the path/file you gave an example of looks correct. The setting is applied only to the running application. It allows you to specify file paths as before the .NET 4.6.2 framework without getting System.ArgumentException. An exception occurred while processing pictureBox: System.InvalidOperationException: Invalid image data. —> System.ArgumentException: The path has no legal form. Deselect and restart each item. If you continue to receive the error message, return to starting msconfig, select this item again, and then disable the next one. Continue this process until the computer starts without an error message. This will help identify the process causing the problem. Then try to reload the program using this process. Add the following setting in the Runtime section of the running application configuration file: Can you get a list of all the files it reads and display it here for our benefit and yours? In this way we can see on which line the error occurs and which entries are in the text file / rows Table 1 – When I close the program, everything seems fine in LIST.TXT I run Kubuntu and Win 7 in a dual-boot configuration. A few years ago, I created a file called “Earth: Where We Live”, which is a perfectly valid file name in a Unix-like file system.

I saved it to an NTFS partition that I use for work created in both operating systems. The problem is that when NTFS runs on Windows, it chokes on a colon used in a file name. Unix-like operating systems have no problems with the colon. As a result, Linux was able to open the file properly, but Windows couldn`t even see it. It was completely invisible. After understanding what was causing the problem and renaming the file to get rid of the colon (with Kubuntu), the file appeared in Windows. As suggested, can you please write here what each line currently reads in the foreach loop and also an example of the list.txt? As you said, when the application is closed, the application rewrites the files to the text file – right? But that`s essentially what it`s all about. He complains about a file name that he can`t understand where the file is.

2 – I replace SystemInfo(line) with MessageBox.Show(line) to see what`s in this line, and everything looks fine. In your foreach loop, check the length of the line first before continuing with the code: if you try this, you will get an error message. At what part/distance from the foreach loop is the exception thrown? What was the value of the variable in the foreach loop that caused the exception to be thrown? It may also be that there is an entry somewhere that is an invalid entry that causes it to lift the exception. To be honest, to be fair, it may not be something you set up. It can be some sort of ill-defined configuration when configuring the program, or it can even be something that could even be modified by malware. I mean, there are a lot of different ways in which this kind of mistake can happen. Just a wild guess, but maybe you need to set EnableRaisingEvents to false before changing IncludeSubdirectories and the path? For example: since it appears at startup and sometimes with the browser, I would start with QuickTime, Java and Adobe Reader. These are often loaded at startup and used by some websites.

For example, it would be difficult to create a file with a vertical bar in the file name. You would have trouble creating a file whose file name contains a greater than sign or a less than sign. I fixed the problem which was the error with the FileInfo data type, I had set a default value of new Fileinfo (“”) and that was the cause of the problem. But that`s the kind of thing that happens. There is a problem with a file name specified as a setting as a configuration option for a program that you run at startup and then occasionally while browsing. This means that something is being misconfigured on your computer. New to Telerik Reporting? Download a free 30-day trial What happens next? If this happens at startup and it happens occasionally, the only way to know where it came from is to try to identify the program that is displaying the error message at the time of display.