how to generate barcode in c# windows application THE DBA AS DESIGNER in C#

Incoporate qr bidimensional barcode in C# THE DBA AS DESIGNER

The modified code is in boldface in Listing 1-7. After the modification, use Visual Studio to regenerate the table. The error will go away, and the table will be recreated in the local SQL database. Listing 1-7. An Example of Solutions for Non-portable Data Types public enum State : int { AL,AK,AS,AZ,AR,CA,CO,CT,DE,DC,FM,FL,GA,GU,HI, ID,IL,IN,IA,KS,KY,LA,ME,MH,MD,MA,MI,MN,MS,MO, MT,NE,NV,NH,NJ,NM,NY,NC,ND,MP,OH,OK,OR,PW,PA, PR,RI,SC,SD,TN,TX,UT,VT,VI,VA,WA,WV,WI,WY } public class Address : TableStorageEntity { private State _state; public int State { get { return (int)_state; } set { _state = (State)value; } } }

only when there is at least one UpdatePanel control on the page. This is because the control is triggered off the asynchronous communication of the underlying XMLHttpRequest object.

interface for designating users. It s called the Contact Picker or the People Editor (depending on how it is implemented). We ll take a look at using it in 9.

The Guide.ShowSignIn method takes two parameters. The first one indicates how many players should be asked to sign in. On an Xbox 360 console, up to four players can sign in at the same time, while this is limited to only one on a Windows-based machine. The second argument specifies whether only online Live accounts are allowed to sign in, which is useful if you want to use the Live servers for matchmaking.

Another big addition to the Workflow family is the Forms Server. This Office 2007 server is responsible for dynamically generating HTML forms for data collection. This is going to come into play in two primary ways with regard to Workflow: As a mechanism for displaying and collecting information intrinsic to our workflow. We ve already seen this use of the Forms Server in action. Flip back a few pages to Figure 1-9. The Workflow task information dialog box shown earlier is an example of a dynamically generated form using the Forms Server delivered right in the Office client applications. The integration with the Office 2007 clients is impressive it looks like an integrated piece of the application. As documents stored in a SharePoint List, forms can have their own workflows assigned directly to them. The possibilities for this scenario are practically limitless. Any form used in your business can be delivered via the web and have a Workflow associated with it. When an instance of that form is submitted by a user, the workflow can automatically begin the appropriate business process. There is naturally a lot more to this server than that, and the use outside Workflow is equally as important. For now, however, we ll leave it at that. We ll cover the Forms Server in more detail in 7.

The parameters, also known as the arguments, allow the caller of your method to supply objects or values for processing by your method. In the case of the method in Listing 9-1, the parameters are the two int values that are to be multiplied together. Each parameter is given a name unique to that method. For the example, I used num1 and num2. You can use any name for your parameters, but the convention is to use descriptive names to make using your method simpler. C# parameters names use camel case, where the first letter of the name is lowercase, but the first letters of any subsequent words are uppercase, for example, firstNumber. Parameters are a common cause of confusion for programmers new to C#. There are a lot of different options and features available; see the Understanding Parameters section later in this chapter for more information. Methods are not required to have parameters. You can omit them entirely if your method doesn t need to receive objects to process. Listing 9-4 contains a method that doesn t have any parameters. Listing 9-4. A Method Without Parameters class MyClass { public void PrintMessage() { // print a message

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