You may receive multiple errors when you have a file name with characters from a different language in Visual C# .NET

• The source file loses color.
• The debugger prompts the user to open the file before each breakpoint, and after each time the user steps, even if the file is already open.
• Breakpoints are not displayed while debugging, but are hit.
• You receive the CS2002 compiler warning.

Back to the top

• Navigation features that do not function correctly when you double-click the error in the Task List
• Debugging problems
• Compiler warnings

Back to the top

Steps to Reproduce the Behavior

Navigation Features That Do Not Function Correctly When You Double-Click the Error in the Task List

1. Set System locale to Turkish.
   To do this in Microsoft Windows XP, follow these steps:
   1. In Control Panel, click Date, Time, Language, and Regional Options, and then click Regional and Language Options.
   2. In the Regional and Language Options dialog box, click the Advanced tab.
   3. Under Language for non-Unicode programs, select Turkish from the list.
   
   To do this in Microsoft Windows 2000 Advanced Server, follow these steps:
   1. In Control Panel, double-click Regional Options.
   2. On the General tab, select Turkish from the your locale (location): list. If you cannot find Turkish, click to select the Turkic check box under Language settings for the system. Restart your computer when you are prompted to do so.
   3. In the Regional Options dialog box, click the Input locales tab, and then click Change.
   4. Under Installed Services, click Add. In the Add Input Language dialog box, select Turkish from the Input Language list.
   5. Click OK.
   6. In the notification area of taskbar, click the Language icon, and then select Turkish.
2. Start Microsoft Visual Studio .NET.
3. On the File menu, point to New, and then click Project.
4. Click Visual C# Projects under Project Types, click Console Application under Templates, and then click OK.
5. In the "Main" section of the default code, add the following code:

   int iVal1 = 10;
   int iVal2 = 20;
   int iSum = 0;
   string str = "\u0049\u0131\u0130\u0069";
   iSum = iVal1 + iVal2;
   Console.WriteLine("the sum is {0} string = {1}", iSum, str);

6. Build the project.
7. Insert breakpoints.
8. Press F5 to start debugging.
9. Press SHIFT+F5 to stop debugging.
10. Change the name of the Class1.cs file to İ1.cs.
11. Introduce a build error (remove line terminator ";" in the source code İ.cs).
12. Build the application. You receive the build error.
13. Double-click the build error in the Task List.

• All language services stop working or do not work correctly.
• Outlining, colorization, code model, Intellisense, and loading designer do not work.
• The editor does not show the breakpoints that are set in the code.

Debugger Problems

1. Follow the earlier steps 2 through 7.
2. Open Class1.cs in the editor, and then rename the file to include a character from a different language. For example, the following Turkish character: İ1.cs.
3. Build the project.
4. Press F5 to start debugging. Notice that the debugger prompts you to open the file, even when the file is already open.

Compiler Warnings

csc İ1.cs I1.cs

Back to the top