how to create qr code using Figure 11-4. Browsing to the ObjRef s properties in the Locals window in visual basic

Make QR Code 2d barcode in visual basic Figure 11-4. Browsing to the ObjRef s properties in the Locals window

when the code is actually required to run, the .NET runtime compiles the IL into machine language. This is called Just-In-Time (JIT) compilation. There are a variety of compiling options for ASP.NET applications that we examine a little later. For instance, after typing out a lot of new code, you may want to do a quick check to ensure there are not any compile errors. By selecting the Build Solution option under the Build menu, you will quickly receive feedback about build errors. This is also a menu where you will add and remove items depending on what you select in Solution Explorer. If you have the project node selected in the Solution Explorer, you will see options pertaining only to building solutions. However, if you select one ore more files within a project, you can also use the Build Page option. This option is convenient in cases where multiple pages may be causing compile errors and you want to be able to fix things up one page at a time. The Debug menu provides commands necessary to run your application, including both the Start (F5) and the Start without Debugging (Ctrl+F5) commands. This menu also provides some other advanced debugging options that we cover in detail in 12.
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<title>PortalBook Technical Notes</title> <link></link> <description> Discourse and exposition on Java and developing Portlets </description>
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Inheritance like this has limitations the only methods that your class can use are those in the class that it inherits from (and the class that its parent class inherits from, and so on). In cases where you might want to implement common methods across different classes, you cannot do it with inheritance. For example, the speedboat implements throttle opening and closing, and you may want to implement these for a motorcycle also. You can t derive a motorcycle from a boat, so you d end up having to implement them twice, and can end up with differences as a result, making for an untidy API (i.e., Motorcycle could have ThrottleOpen while SpeedBoat has openThrottle), which isn t desirable. The concept of interfaces is defined to help avoid this. You ll see how this works in JavaScript in the next section.
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To use the ExecuteNonQuery method, follow these steps: 1. Add a new Visual Basic Console Application project named CommandNonQuery to your 11 solution. Rename Module1.vb to CommandNonQuery.vb. 2. Replace the code in CommandNonQuery.vb with the code in Listing 11-4. Listing 11-4. CommandNonQuery.vb Imports System Imports System.Data Imports System.Data.SqlClient Module CommandNonQuery Sub Main() 'create connection Dim conn As SqlConnection = New SqlConnection _ ("Data Source=.\sqlexpress;" & _ "Integrated Security=True;" & _ "database=northwind")
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A wide variety of command-line tools are included with Leopard that can be used with forensic investigations and primarily the acquisition of forensic images. You can use the mount command to mount connected disks to a forensic system. To mount a system as read-only for inspection, you can use the mount r command. Once the disk is mounted, you will typically want to use dd on the drive. The dd command is a method for creating disk images that can be used for acquiring a forensic disk image. The dd command is preferred over Disk Utility, because it can create a disk image without being required to actually mount a drive, which, as discussed, can potentially contaminate the drive for future use as evidence. The dd command can also split disk images into segments, allowing you to burn the image to optical media or place it onto hard drives to present evidence to another party for their own forensic investigation. Once the disk has been imaged, you can move on to building a hash of the drive using the openssl command. Be aware, though, that unless you know exactly what you are doing with the command-line tools, you run the risk of contaminating your evidence. This is one instance where the danger of breaking your chain of custody may outweigh the cost of purchasing a package like MacForensicsLab.
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Microsoft has tried to harness the power of XML in every possible way. The .NET Framework is no exception. The .NET Framework not only allows you to work with an array of XML technologies, but also uses them at many places itself. This chapter gave you an introduction to these areas. You started with remoting, where the configuration files use XML markup. Then you learned about application configuration files. Specifically you learned to store and retrieve application configuration settings and database connection strings. ASP.NET uses XML heavily for server control markup and configuration. The web.config file is an XML file that stores ASP.NET configuration information. You learned how to configure membership, roles, and profile providers by using XML markup. You also learned to configure custom error pages for unexpected errors in your website. Finally, you generated .CHM help files by using XML documentation syntax.
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Figure 1-13. Assign users to the appropriate groups
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appfirewall.log can help you get a handle on the comings and goings of network traffic on your computer, but can be quite verbose. When scanning through the logs, your goal should not be to read every line, but to look for any information that seems out of the ordinary, such as a large number of rejected traffic packets. You also want to look out for repeated attempts on ports that are out of the ordinary or do not have corresponding services attached to your system. NOTE: Date and time stamps are a common theme in logs. They re invaluable correlating log entries with real-world events, or tracking a user s activities across one system or many.
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You will now be able to use your device s proper simulator, and you will have access to high-quality on-device debugging.
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Field Type
The images you upload can be referenced in your posts and pages. Assuming your user level is high enough (as discussed in the Assigning User Permissions section later in this chapter), to upload images, all you need to do is click Upload along the top of the administration pages. This takes you to a page with a file browser button and a couple of other controls. Click the Browse button, and navigate to the image that you want to upload to your blog. When you have selected an image, you can add a description of the image. You can also choose to have a thumbnail generated and specify its size. When you have specified all your options, click the Upload File button. WordPress will tell you it has successfully uploaded the file and display the details of the image, including the name, file size, and type. It will also give you the code to display the image. You need to select the code it gives you and copy it to the clipboard. You can then paste that code into your blog post. This way of adding images to your post is less than satisfactory. If you are in the middle of creating your post and you decide to upload an image, you need to save the post as draft, go to the upload page, upload your file, copy the code to the clipboard, click back to the Manage Posts page, click your draft post, find your place, and paste the image code into your article. If you forget to save the post as draft, you will lose what you have typed so far. Because adding an image this way is so inconvenient, the next version of WordPress will probably have a different image upload interface. In the meantime, there is a much better way of handling images.
Classes and Structs
Enabling Transactions for Web Methods
create procedure sp_Orders_By_EmployeeId2 @employeeid int, @ordercount int = 0 output as select orderid, customerid from orders where employeeid = @employeeid; select @ordercount = count(*) from orders where employeeid = @employeeid return @ordercount
Reading Only the Schema Information
Local or Remote
ASP.NET Microsoft Management Console Snap-In
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