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NOTE: The rule number of this rule is 01000. Multiple rules can share the same number, but this is typically discouraged because it can make troubleshooting difficult. This particular example rule allows all traffic into or out of the computer from any source over the en0 network interface and logs the activity (more about logging later). The en0 signifies the particular network interface our computer is using for the rule. To find out what naming conventions a computer uses for its network interfaces, reference Network Utility, located at /Applications/Utilities, to list the various network interface names. Network Utility shows each network interface, and when you click an interface, it shows detailed information about the interface on the screen. You can get a detailed list of all the rules that are applied to your system by running the ipfw show command. When you run this command, you will see something like this:

To configure a port and port type for the orchestration to use to send a message, right-click Port Surface, and click New Port, as shown in Figure 5 7. Click the exclamation mark (tool tip), and select No port type has been specified. This starts the Port Configuration Wizard.

In the Create Storyboard Resource dialog box, enter BounceBall in the Name (Key) text box, as shown in Figure 13-8. This will be the name of your storyboard.

var med = sender.content.findName("mplayer"); med.Stop();

To illustrate the use of ReadXml(), you need to develop an application like the one shown in Figure 7-11.

The application consists of two text boxes for specifying the user ID and password. The Get Employees button calls the GetEmployees() web method and displays the results in a DataGridView control. After you create the user interface of the application, add a web reference to the web service. Then write the code as shown in Listing 9-23 in the Click event of the Get Employees button. Listing 9-23. Passing a SOAP Header from the Client to the Web Service private void button1_Click(object sender, EventArgs e) { Service proxy = new Service(); if (textBox1.Text != "" && textBox2.Text != "") { User currentuser = new User(); currentuser.UserID = textBox1.Text; currentuser.Password = textBox2.Text; proxy.UserValue = currentuser; } try { DataSet ds = proxy.GetEmployees(); dataGridView1.DataSource = ds.Tables["myemployees"].DefaultView; } catch (SoapHeaderException ex2) { MessageBox.Show(ex2.Message + "[" + ex2.Code + "]"); } catch (SoapException ex1) { MessageBox.Show(ex1.Message + "[" + ex1.Code + "]"); } } Notice the code marked in bold. The code checks whether the user ID and password have been entered. If so, it creates an instance of the User class. Remember that this User class is created when you add a web reference to the web service. Then the UserID and Password properties of the User class are set with corresponding values from the text boxes. Next, the UserValue property of the web service proxy is set. You might be wondering where this UserValue property has come from. When you create a proxy for the web service, it automatically creates a property of the form XXXXValue, where XXXX is the name of the SOAP header class. The type of the XXXXValue property is the same as the class XXXX. After this property has been set, the GetEmployees() web method is called and the DataSet returned is bound to the DataGridView control. The code also has some exception-handling code. The try...catch block checks for two types of exceptions: SoapHeaderException and SoapException. Remember that these are the same exceptions that we raise from the web service if there is an authentication error. The

public void setId(int id) { this.id = id; } public String getFirstName() { return firstName; } public void setFirstName(String firstName) { this.firstName = firstName; } public String getLastName() { return lastName; } public void setLastName(String lastName) { this.lastName = lastName; } public String getCountry() { return country; } public void setCountry(String country) { this.country = country; } }