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<diffgr:errors> <Employees diffgr:id="Employees1" diffgr:error="Must review"> <employeeid diffgr:error="Check the ID" /> <lastname diffgr:error="Sounds like the wrong name" /> </Employees> </diffgr:errors> The diffgr:error attribute on the row node (<Employees> in the preceding sample code) contains the text stored in the RowError property. For each column with a custom error description, a new child element is created with the name of the column and a diffgr:error attribute. In the sample code, the employeeid and lastname columns contain errors. Note that the RowError property is not automatically filled when at least one column is in error. Caution The XML schema of the elements in the <diffgr:errors> section is not affected by column mappings, as is the case with the current data and the <diffgr:before> sections we examined earlier.



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List 12: Finding Source and Line Information with Just a Crash Address 13: Crash Handlers 14: Debugging Windows Services and DLLs That Load into Services 15: Multithreaded Deadlocks 16: Automated Testing 17: The Debug C Run-Time Library and Memory Management 18: FastTrace: A High-Performance Tracing Tool for Server Applications 19: Smoothing the Working Set





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How to read pdf line by line and fetch the data in c# - C# Corner
Read the pdf Documents line by line and search the data then fetch the data. ... using iTextSharp .text. pdf .parser;; PdfReader reader = new ...

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Extract text from adobe PDF document in VB . NET Program. Extract and get partial and all text content from PDF file. Extract highlighted text out of PDF document.

1 28 1582 3000 Next date Month minimum +1 1 28 1582 3000 Next date Month maximum -1 1 28 1582 3000 Next date Month maximum 1 28 1582 3000 Error Msg. Month maximum +1 0 1582 3000 Error Msg. Day minimum -1 (31-day month) 1582 3000 Next date Day minimum (31-day month) 1582 3000 Next date Day minimum +1 (31-day month) 1582 3000 Next date Day maximum -1 (31-day month) 1582 3000 Next date Day maximum (31-day month) 1582 3000 Error Msg. Day maximum +1 (31-day month) 1582 3000 Error Msg. Day minimum -1 (30-day month) 1582 3000 Next date Day minimum (30-day month) 1582 3000 Next date Day minimum +1 (30-day month) 1582 3000 Next date Day maximum -1 (30-day

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Overview Your program has crashed. You have the crash address because the operating system is nice enough to give it to you when your application dies. Now what do you do My friend Chris Sells calls this scenario the "my program went on vacation and all I got was this lousy address" problem. Although having the address is better than nothing, having the source file and the line number of the crash would be much more convenient. I suppose you could always give the source code to your users and have them debug it for you, but I just don't see that happening any time soon. That crash address is generally all you're going to get if you're very lucky. Microsoft has worked hard to make it easier for their people to track down issues on Microsoft Windows 2000, Windows XP, and Windows Server 2003. Troubleshooting is a little more confusing when your users tell you that your application has had a problem. The default unhandled exception handler displays the fancy new "We are sorry for the inconvenience" dialog box shown in Figure 12-1. The big problem is that the crash dialog box no longer shows you the crash address! This is a classic case of a change that is friendlier for users but worse for us developers.

To fully demonstrate the workings of XML DiffGrams, nothing is better than taking a DataSet object, entering some changes, and seeing how the corresponding DiffGram representation varies. For this purpose, I created the DiffGram Viewer Windows Forms application, shown in Figure 10-3. The application is available in this book's sample files.

Figure 12-1: Standard Windows XP crash dialog box To get the crash address, click the To See What Data This Error Report Contains, Click Here link and, in the next dialog box, click the To View Technical Information About The Error Report, Click Here link. In the Error Report Contents dialog box, shown in Figure 12-2, you'll see the crash address and all the loaded modules. Additionally, you'll get a really useful stack dump that's big enough to see almost to the beginning of time for the thread that crashed. Amazingly, someone made a really bad decision and put all that great information in a static control, so you can't copy it. I certainly hope Microsoft will fix this annoying oversight in a future service pack of Windows XP. The good news is that Windows 2000 and Windows Server 2003 always show the crash address in the crash dialog box.

month) 1582 3000 Next date Day maximum (30-day month) 1582 3000 Error Msg. Day maximum +1 (30-day month) Leap year Error Msg. Day minimum -1 (leap year in range) Next date Day minimum (leap year in range) Next date Day minimum +1 (leap year in range) Next date Day maximum -1 (leap year in range) Next date Day maximum (leap year in range) Error Msg. Day maximum +1 (leap year in range) Error Msg. Day minimum -1 (non-leap year) Next date Day minimum (non-leap year) Next date Day minimum +1 (non-leap year) Next date Day maximum -1 (non-leap year) Next date Day maximum (non-leap

Figure 10-3: The DiffGram Viewer sample application in action. This application executes a couple of SQL commands to obtain a DataSet object filled with two tables Employees and Territories. The names of the DataSet object and the in-memory tables can be changed at will using text boxes. Next the application creates a relation between the tables, sets the nesting property to true, and creates the DiffGram. 372

Figure 12-2: Error Report Contents dialog box in Windows XP The good news is that Dr Watson will still run no matter what button you click in the crash dialog box provided Dr Watson is set as the debugger to launch, which it should be for default installations If it's not, have your users run DRWTSN32EXE i to set Dr Watson as the default debugger To get the information out of Dr Watson, you'll just need to make sure your users know to start Dr Watson with the DRWTSN32EXE command and to copy the crash out of the Dr Watson user interface (UI) (Refer to Appendix A for detailed information about Dr Watson logs and how to interpret them) If you're lucky, your users will be able to send you the minidump files, so make sure they check Create Crash Dump File in the Dr.

Watson UI and note where the files are written Of course, most of us are doing well if we get just a crash address If you're totally proactive, you'll have your crashing application sending you the minidump automatically, which I'll also discuss in 13 Obviously, you need a way to convert that crash address to the source file and line number in your application In this chapter, I'll explain how to accomplish that I'll concentrate on the two main ways of converting the address: using MAP files and using CrashFinder, a utility included with this book's sample files To maximize the techniques in this chapter, you need to have your program compilation set up as I described in 2 You need to be building your release builds with full debugging symbols and generating MAP files for them Additionally, you must fix any DLL load address conflicts.

year) Error Msg. Day maximum +1 (non-leap year) Error Msg. Year minimum -1 Next date Year minimum Next date Year minimum +1 Next date Year maximum -1 Next date Year maximum Error Msg. Year maximum +1 Error Msg. Output minimum -1 1/2/1582 3/3/1582 Output minimum Output minimum +1

The DiffGram is created using an in-memory string writer, and the output text is written to a multiline, read-only text box. Clicking the Edit button opens a new form with a DataGrid control for editing rows. The DataGrid control is bound to the DataSet object generated by the query, and is shown in Figure 10-4.

If you don't take these steps, the techniques I present in this chapter won't completely work and the only way you'll be able to figure out the source file and line number for a crash address is through pure guessing Creating and Reading a MAP File Many people have asked me why I keep recommending that everyone create MAP files with their release builds Simply put, MAP files are the only textual representation of your program's global symbols and source file and line number information Although using CrashFinder is far easier than deciphering a MAP file, your MAP files can be read anywhere and anytime, without requiring a supporting program and without requiring all 436.

your program's binaries to get the same information. Trust me, at some point in the future, you're going to need to figure out where a crash happened on an older version of your software, and the only way you'll be able to find the information is with your MAP file. MAP files are useful only for release builds because when creating a MAP File, the linker has to turn off incremental linking. Setting up to generate MAP files is much easier in Microsoft Visual C++ .NET than in previous versions. In your project Property Pages dialog box, Linker folder, Debugging property page, you just have to set the Generate Map File field, Map Exports, and the Map Lines fields to Yes. Doing so turns on the linker /MAP, /MAPINFO:EXPORTS, and /MAPINFO:LINES options. As you can guess, SettingsMaster from 9, with the default project files, will add these settings automatically. If you're working on a real-world project, you probably have your binary files going to their own output directory. By default, the linker writes the MAP file to the same directory as the intermediate files, so you need to specify that the MAP file goes to the binary file output directory. In the Map File Name edit box, you can type $(OutDir)/$(ProjectName).map. The $(OutDir) is a built-in macro that the build system will substitute with the real output directory, and $(ProjectName) substitutes the project name. Figure 12-3 shows the completed MAP file settings for the release build of the MapDLL project, which is included with this book's sample files.

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Parsing PDF Files using iTextSharp (C#, . NET ) | Square PDF . NET
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