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ean 128 barcode generator c#,
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c# ean 128,
c# gs1-128,
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ean 128 barcode generator c#,
ean 128 generator c#,
ean 128 c#,
ean 128 parser c#,
gs1-128 c# free,
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gs1-128 c# free,
c# ean 128,
ean 128 parser c#,
ean 128 barcode generator c#,
ean 128 c#,
c# gs1-128,
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ean 128 generator c#,
ean 128 barcode generator c#,
ean 128 generator c#,
c# gs1-128,
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ean 128 c#,

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ean 128 barcode generator c#,
ean 128 barcode generator c#,
c# barcode ean 128,
c# barcode ean 128,
ean 128 barcode generator c#,
gs1-128 c# free,
gs1-128 c#,
ean 128 parser c#,
ean 128 barcode c#,
c# gs1-128,
c# barcode ean 128,
c# barcode ean 128,
c# barcode ean 128,
c# gs1-128,
c# ean 128,
ean 128 barcode c#,
ean 128 barcode c#,
ean 128 barcode generator c#,
c# gs1-128,
ean 128 barcode generator c#,
gs1-128 c#,
ean 128 c#,
ean 128 parser c#,
c# barcode ean 128,
ean 128 parser c#,
c# barcode ean 128,
c# barcode ean 128,
ean 128 c#,
c# barcode ean 128,
ean 128 barcode generator c#,
ean 128 barcode c#,
c# barcode ean 128,
ean 128 parser c#,
gs1-128 c#,
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gs1-128 c#,
gs1-128 c#,
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ean 128 barcode c#,
ean 128 c#,
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Here you can see that the service called AddressService is being configured. Its behaviors are defined in a later part of Web.config called AddressServiceTypeBehaviors. But for now, what is most important is the endpoint. Here you define the contract (the name of the interface that defines the service that we saw earlier) and the binding type. In this case, it s an HTTP service, but WCF isn t limited to HTTP. MSMQ, Remoting, and other communications types are supported. Not only are multiple communication types supported, but multiple endpoints and bindings can be specified for a single service, offering you great flexibility. While this is all beyond the scope of this book, there are a number of good references that will help you understand these, including Pro WCF: Practical Microsoft SOA Implementation (Apress, 2007). Now if you run the service, you ll see a result like that in Figure 7-6.

Let s now remove all the URLs that we re not allowed to visit for one reason or another:

public TableReader(string connectionString,string tableName) { cnn = new OleDbConnection(connectionString); cmd = new OleDbCommand(); cmd.Connection = cnn; cmd.CommandText = tableName; cmd.CommandType = CommandType.TableDirect; cnn.Open(); reader = cmd.ExecuteReader(); } The constructor of the TableReader class accepts two parameters: the database connection string and the name of the table whose data is to be read. Using the connection string, the OleDbConnection is instantiated. The Connection property of the OleDbCommand class is set to the OleDbConnection class we just instantiated. The CommandText property of the OleDbCommand class is set to the name of the table whose data is to be read. Have a look at the CommandType property. It is set to TableDirect, which returns all the rows from the table indicated by the CommandText property. In effect, it works as if we have specified SELECT * FROM <tableName> as the query. The database connection is then opened. The ExecuteReader() method of OleDbCommand is called and an OleDbDataReader is retrieved.

absolute.removeAll(forbidden);

The next thing to do is to create a client that allows you to access this service. You ll see how to do this in the next section.

And remove all the URLs that we ve already visited anyway:

public override int AttributeCount { get { return reader.FieldCount; } } The TableReader class is going to return column values as attributes in the resultant XML data. Hence, the AttributeCount read-only property returns the total number of columns in the underlying table. The total number of columns in the table is obtained by using the FieldCount property of the OleDbDataReader class.

To create a service client, you use the svcutil.exe tool that comes with the Windows SDK or as part of the Orcas add-ons to Visual Studio. You ll find it in the Program Files\ Microsoft Visual Studio 8\Common7\IDE folder. In the service harness of your service, you can see the WSDL file that defines the service interface. In the simplest case, you just pass this as a parameter to svcutil.exe, and two files will be created for you. These are a proxy class and a configuration file. So, from a command prompt, type the following:

absolute.removeAll(visited);

public override void Close() { reader.Close(); cnn.Close(); }

We ll add the remainder to the visit queue:

When you are developing with Visual Studio, if you create your web site or service using the file system, Visual Studio will launch the Cassini web server to allow you to test and debug your application. This will use a random port other than port 80, such as port 49906, as in the example in the Creating the Address Service Client section. When following along with the code in this section of this book (as well as any other book where Visual Studio and Cassini are being used), understand that you are likely to have a different port, so your URL will be http://localhost:xxxxx, where xxxxx is the port that was randomly assigned. When you deploy your application to a production web server running IIS, you ll be using port 80. Remember to update proxies or any references to the correct port.

links.addAll(absolute); }

public override int Depth { get { return reader.Depth; } } The Close() method closes the OleDbDataReader as well as the OleDbConnection. The Depth property returns the Depth of the OleDbDataReader.

The tool will respond with output like the following: