how to generate barcode in c# net with example High availability with database mirroring in c sharp

Encoder qr barcode in c sharp High availability with database mirroring

option, used by default, the DataContext will create and enlist in a transaction when SubmitChanges is called. This will roll back changes automatically depending on the selected ConflictMode option. If we wish to manually maintain the transaction, the DataContext also offers the ability to use the transaction on the connection already maintained by the DataContext. In this case, we call BeginTransaction on DataContext.Connection before we try to submit the changes. After we submit the changes, we can either commit them or roll them back. Listing 8.7 demonstrates this alternative.

who handle the Canada region. In addition, the user has decided to see the monthly sales data for 2004, while the sales data for 2003 is displayed consolidated. Let s discuss the essential points of this report design process. Setting up the report data First, we set up the dsTerritorySales report dataset with the following SQL statement:

Silverlight is all about binding data. 11 goes into detail on how binding works and how to use it. For now, it s important to understand that rarely in Silverlight will you find yourself assigning data directly to controls. Instead, you ll set up binding relationships and let the elements pull the data as it becomes available. In this case, we want to set the ListBox s ItemsSource property to our collection, so that it knows to load its individual items from the collection when the collection is updated. Since we re using an ObservableCollection, the ListBox will be alerted whenever an item is added to or removed from that collection.

showStatus(drawHand.Title + " checkGameOver(); }

string command = pokMsg.HoldCards = Console.ReadLine().Trim().ToUpper(); if (command.Equals("Q")) { inQ.Kill(); gameOver = true; return; } pokMsg.Command = "DRAW"; outQ.Send(pokMsg); pokMsg = inQ.Receive(); Console.WriteLine(pokMsg.Hand); // the hand Console.WriteLine(pokMsg.Title); // the title Console.WriteLine("Score = {0}\n", pokMsg.Score); // the score } private private private private private } } bool gameOver = false; string inQPath; PokerQueue inQ; PokerQueue outQ; PokMsg pokMsg;

Showing an image within a MultiScaleImage control is nearly identical to showing an image within an Image control. As with the Image control, the only property you need to set to display an image is Source . This property is a MultiScaleTileSource that can be used to reference a file, but this file isn t a typical image file. Instead, this file is an XML file, known as the Deep Zoom image (DZI) file, that describes a multiscale image. We ll share more about this file type in a moment; for now, look at how a MultiScaleImage is created in XAML:

(5 -gt 10) -and (10 -gt 100) is False, because one or both subexpressions were False. (5 -gt 10) -or (10 -lt 100) is True, because at least one subexpression was True.

You can see that in each case where there is a trailing d , the literal results in a [decimal] value being created. (If there is a space between the number and the d , you ll just get an error.) The multiplier suffixes Of course, plain numbers are fine for most applications, but in the system administration world, there are many special values that you want to be able to conveniently represent, namely those powers of two kilobytes, megabytes, and gigabytes. PowerShell provides a set of multiplier suffixes for common sizes to help with this, as listed in table 3.3.

<s:element name="Greet"> <s:complexType> <s:sequence> <s:element minOccurs="1" maxOccurs="1" name="name" nillable="true" type="s:string" /> </s:sequence> </s:complexType> </s:element> <s:element name="GreetResponse"> <s:complexType> <s:sequence> <s:element minOccurs="1" maxOccurs="1" name="GreetResult" nillable="true" type="s:string" /> </s:sequence> </s:complexType> </s:element> <s:element name="string" nillable="true" type="s:string" /> </s:schema> </types>

The first thing you need to do is locate the structure containing the audio buffer. The inBuffer argument gives you the actual audio buffer, but you need the full PlayQueueData structure that contains it. It might seem that you could just use the currentBufferIndex value to look it up, but if you re still getting audio data over the network, then it s almost certainly been incremented by the time this function is called. So, you use a loop, running through each structure until you find the right one. You have only three of them, so this will be quick. Once you ve found the right structure, you make sure it s ready for use for new audio data. You set the in use flag to NO and reset the count of packets and bytes to zero. You don t need to release any memory here, because the buffers were allocated once back in propertyListenerCallback() and can be reused until you don t need them anymore. Resetting the packet and byte counts gets us back to the beginning of the buffer, ready to copy new data in. Finally, you get the NSCondition object and call its signal method. This will handle the case described previously where enqueueCurrentBuffer was blocked because of a lack of available buffers. Calling signal here will unblock enqueueCurrentBuffer and allow it to continue.

<h3>An image in the /_layouts/images folder</h3> <img src="/_layouts/Images/WebPartsInAction.Ch6.ImagesAndScripts/ Annotation.png" />

Consider that reporting is a way of life for any serious (and many not-so-serious) application developers. Given how easy it is to create server-hosted or even client-hosted reports, it s easy to see how developers are leveraging these evolving technologies to reduce the amount of code needed to present data (and graphics) to end users. Consider as well that the Report Processor is designed to take on the responsibility of dealing with complex hierarchies and aggregates as well as parent-child relationships with little code to implement it. That s why I like it. It generates more solutions with less code that I have to write, debug, and deploy.