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If you open a user record in Microsoft Dynamics CRM, you will see the Reassign Records button in the ribbon. When you click the Reassign Records button, the dialog box shown in Figure 3-6 appears.
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as you would expect. Now that you can view and evaluate all your variables, it's time to turn to executing, stepping, and stopping your program. Executing, Stepping, and Tracing As you've probably figured out by now, pressing F5 continues execution when you're stopped in WinDBG. You might not have noticed it, but pressing F5 simply causes a G (Go) command. What's neat about the G command is that you can also specify an address as the parameter. WinDBG uses that address as a one-time breakpoint, so you'll run to that location. Have you ever noticed that pressing Shift+F11, the Step Out command, executes the G command followed by an address (sometimes in the form of an expression) That address is the return address at the top of the stack. You can do the same thing in the Command window, but instead of having to calculate the return address manually, you can use the $ra pseudoregister as the parameter to have WinDBG do the grunt work of finding the return address. There are other pseudoregisters, but you can't use them all in user mode. Search for "Pseudo-Register Syntax" in WinDBG help to find the rest of the pseudoregisters. To clarify, I want to mention that these WinDBG pseudoregisters are unique to WinDBG and aren't usable in Visual Studio .NET. To handle tracing and stepping, use the T (Trace) and P (Step) commands, respectively. Just to remind you, tracing will step into any function calls encountered, whereas stepping will step over those function calls. One aspect that makes WinDBG different from Visual Studio .NET is that WinDBG doesn't automatically switch between stepping source code lines and assembly instructions just because you happen to have the focus at a Source and Disassembly window. By default, WinDBG steps source lines when lines are loaded for the current executing location. If you want to step by assembly instructions, either uncheck Source Mode on the Debug menu or use the .LINES (Toggle Source Line Support) command with the d parameter. As with the G command, T and P are what the F11 (also F8) and F10 keystrokes jam into the Command window. Also, you can pass either an address to step/trace to or, interestingly, the number of steps/traces to make. This comes in very handy because it's sometimes easier than setting a breakpoint. In essence, it's a manual "run-to-cursor" type command. Two relatively new commands for stepping and tracing are the TC (Trace to Next Call) and PC (Step to Next Call) commands. The difference with these commands is that they step/trace up until the next CALL instruction. The only difference between TC and PC is that with the PC command, if the instruction pointer is sitting on a CALL instruction, the CALL will execute until it returns. A TC command will step into the CALL and stop on the next CALL. I find TC and PC useful when I want to move past any work the function does but not leave the function. Trace and Watch Data One of the biggest problems with tracking down performance issues is that some code is nearly impossible to read and see exactly what it does. For example, Standard Template Library (STL) code creates one of the largest performance problems we see when debugging other programmers' applications. Release builds jam in so many inline functions, and general STL code is nearly impossible to read, so analysis by reading isn't feasible. But because STL allocates so much memory behind the scenes and acquires various synchronization locks left and right, it's vital to have some way to see what a function that uses STL is really doing. Fortunately, WinDBG has an answer to this conundrum and it's one of the key differences between WinDBG and Visual Studio .NET: the WT (Trace and 334
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Even with the index in place, this approach involves a very high I/O cost compared to the cursor approach . The plan in Figure 8-1 performs a seek operation in the index for each row in the table . With the number of rows in our table the index has three levels . This means that the approach shown in Listing 8-1 involves 3 reads per row, amounting in a total of 3,000,000 reads for 1,000,000 rows . That s compared to about 25,000 reads that the cursor approach involves because it simply scans the data once . Without that index, matters are even worse for the approach shown in Listing 8-1 . The code would run substantially slower because each invocation of the query would need to rescan large portions of data . The cursor solution would still perform the same because it would still scan the data only once . Note that a cursor solution based on sorted data would also benefit from an index and would run substantially slower without one because it would need to sort the data after scanning it . With large tables and no index on the sort columns, the sort operation can be expensive because sorting in terms of complexity is O(n log n), whereas scanning is only O(n) . Before you proceed, make sure you turn off the Discard results after execution option in SSMS .
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public interface MyInterface { int MyMethod(int x); } public abstract class MyClass : MyInterface { // Compile time error if the following declaration is missing public abstract int MyMethod(int x); }
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SALGRADES GRADE LOWERLIMIT UPPERLIMIT BONUS ----- ---------- ---------- -----1 700 1200 0 2 1201 1400 50 3 1401 2000 100 4 2001 3000 200 5 3001 9999 500 COURSES CODE -----JAV PLS XML ERM GEN PMT PRO RSD OAU SQL DESCRIPTION ---------------------------Java for Oracle developers Introduction to PL/SQL XML for Oracle developers Data modeling with ERM System generation Process modeling techniques Prototyping Relational system design Oracle for application users Introduction to SQL CATEGORY DURATION -------- -------BLD 4 BLD 1 BLD 2 DSG 3 DSG 4 DSG 1 DSG 5 DSG 2 GEN 1 GEN 4
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11. The Power of Variable Names
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Lesson 1
The CMAK for Windows Server 2003 allows you to configure specific
Now I ll describe what this code is doing . At the top, notice the declaration of the internal delegate, Feedback . A delegate indicates the signature of a callback method . In this example, a Feedback delegate identifies a method that takes one parameter (an Int32) and returns void . In a way, a delegate is very much like an unmanaged C/C++ typedef that represents the address of a function . The Program class defines a private, static method named Counter . This method counts integers from the from argument to the to argument . The Counter method also takes an fb, which is a reference to a Feedback delegate object . Counter iterates through all of the integers, and for each integer, if the fb variable is not null, the callback method (specified by the fb variable) is called . This callback method is passed the value of the item being processed, the item number . The callback method can be designed and implemented to process each item in any manner deemed appropriate .
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All that remains is to write a webpage that works with the proxy class to call the service. You will look at an example of doing just that in the practice for this lesson.
Create the Connections
Core Facilities
FIGURE 6-14 Batching06.proj TargetEx02 result
With versions of Visual Studio prior to 2005, the build was mostly a black box. The process by which Visual Studio built your applications was internal to the Visual Studio product itself. The only way you could customize the process was to use execute commands for pre- and post-build events. With this you were able to embed a series of commands to be executed. You were not able to change how Visual Studio built your applications. With the advent of MSBuild, Visual Studio has externalized the build process and you now have complete control over it. Since MSBuild is delivered with the .NET Framework, Visual Studio is not required to build applications. Because of this we can create build servers that do not need to have MSBuild installed. We ll examine this by showing how to augment the build process. Throughout the rest of this book we will describe how to extend the build process in more detail. The pre- and post-build events mentioned earlier are still available, but you now have other options. The three main ways to add a pre- or post-build action are:
FIguRE 20-9 The Code Contracts pane for a Visual Studio project
Clicking the Add button opens the Select Attribute dialog box, which allows you to add a new category for a remote access policy condition. For example, the NAS-IP-Address attribute allows a RADIUS server to distinguish remote access clients connecting through a particular remote access server (as distinguished by IP address). Figure 10-16 shows the Select Attribute dialog box and its associated set of configurable attributes.
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