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Instead of the BinaryReader you use for images, GetTextFile uses a StreamReader (derived from System.IO.TextReader) to read the contents of the file into a string: Private Function GetTextFile(ByVal textFile As String) As String Dim textBytes As String = Nothing Console.WriteLine("Loading File: " & textFile) Dim fs As New FileStream(textFile, FileMode.Open, FileAccess.Read) Dim sr As New StreamReader(fs) textBytes = sr.ReadToEnd() Console.WriteLine("TextBytes has length {0} bytes.", textBytes.Length) Return textBytes End Function Otherwise, the processing logic is basically the same as you ve seen many times throughout the book: open a connection, access a database, and then close the connection. Now let s retrieve the text you just stored.
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} protected function eventHandler(event:TouchEvent) : void { trace( event.toString() ); } ]]> </fx:Script> </s:WindowedApplication>
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' Insert Employees ' ' Create command Dim cmd As SqlCommand = New SqlCommand(ins, conn) generare report barcode
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public FooFacility(final Connection c) { this.c = c; } private Connection c; public void foo() { PreparedStatement ps = c.prepareStatement("..."); ... } Of these two latter approaches, at first glance the ConnectionFactory class looks more appealing because it has a reduced footprint in our class. On the other hand, we still have a hard dependency on the external class. Our changes to ensure compatibility within different environments are certainly reduced now we will have to amend only ConnectionFactory but this class is still required, and in environments where there is already a strategy for connection acquisition, it will add complexity to add another class with the same responsibility. You would naturally want to replace calls to our custom ConnectionFactory with calls to the existing factory (or vice versa), but this brings us back to our original problem: having to modify code when moving our logic to a new environment.
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Locking of data elements, where applicable Definition of transactional boundaries to facilitate commit and rollback
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This simply creates an array of the supplied software update servers (the items that start with http:// and located between the quote marks) and then chooses a random item from the list, writing the output to the screen of the chosen item. In this case, the array has been called sus, and the randomization performed using the $RANDOM function. If you have a number of software update servers you could replace the servers in this array with your own, and the script would simply write the server chosen from the array to the screen. Then to have it actually specify the server, remove the line that begins with echo -n and substitute
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Within the .NET Framework 2.0 lies a number of specific sets of data controls designed to manage the connection or construct the bridge to the data source. As mentioned earlier, there are two different types of data controls: data source controls and controls that display data. We discuss each type separately (see Exercise 6-1).
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CHAPTER 3: Some Basics
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Try It Out: Writing an Inner Join
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The two key things that happen in this code are: (1) the setupControllerForAccessory method in the controller object is called, passing in the protocol used by the accessory, and (2) the detail view controller for the accessory is loaded using initWithNibName. In essence, this code starts the accessory controller so your app can exchange information and brings up the window in Figure 4 15.
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