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Sample of Visual Basic Code Protected Sub AddButton_Click_ (ByVal sender As Object, ByVal e As System.EventArgs) _ Handles AddButton.Click If Not (NameTextBox.Text = [String].Empty) Then DestinationsCheckBoxList.Items.Add(Server.HtmlEncode(NameTextBox.Text)) NameTextBox.Text = Nothing End If End Sub Sample of C# Code protected void AddButton_Click(object sender, EventArgs e) { if ( !(NameTextBox.Text == String.Empty)) { DestinationsCheckBoxList.Items.Add(Server.HtmlEncode(NameTextBox.Text)); NameTextBox.Text = null; } }

23. On the License Agreement page, click Next. 24. On the Additional Files page, click Next. 25. On the Ready To Build The Service Profile page, select the Advanced Cus tomization check box and then click Next. 26. On the Advanced Customization page, click Connection Manager in the Sec tion Name drop-down list, click Dialup in the Key Name drop-down list, type 0 in the Value text box, and click Apply.

Now you will write code to display the shipping type and destinations in ShippingConfirmationLabel when the user clicks the Ship button. Return to Design view, double-click the Ship button, and then write the necessary code.

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Sample of Visual Basic Code Protected Sub ShipButton_Click_ (ByVal sender As Object, ByVal e As System.EventArgs) _ Handles ShipButton.Click If (ShippingTypeRadioButtonList.SelectedValue = [String].Empty) OrElse _ (DestinationsCheckBoxList.SelectedValue = [String].Empty) Then ShippingConfirmationLabel.Text = "You must select a shipping type and at least one destination." Else ShippingConfirmationLabel.Text = _ String.Format("Using {0} shipping to:<br>", _ ShippingTypeRadioButtonList.SelectedValue) For Each li As ListItem In DestinationsCheckBoxList.Items If li.Selected Then ShippingConfirmationLabel.Text += li.Value + "<br>" End If Next End If End Sub

WriteLine(World); } } Here two String objects are created, one containing the literal Hello and the other containing the literal World! Although the literals are declared in that order, there s no assurance that they will be destroyed in any particular order Furthermore, there s no assurance that they will be destroyed as the strings go out of scope The order, or timing, in the preceding example is meaningless, but it might make a difference in other examples The nondeterministic freeing of objects isn t a problem unless the object holds some persistent resources that the runtime doesn t manage for instance, a database connection or a window handle When an object holds such resources, the solution is to provide a Dispose method and implement the IDisposable interface, which can be explicitly called to free resources You ll see examples of this technique in subsequent chapters..

Sample of C# Code protected void ShipButton_Click(object sender, EventArgs e) { if ((ShippingTypeRadioButtonList.SelectedValue == String.Empty) || (DestinationsCheckBoxList.SelectedValue == String.Empty)) { ShippingConfirmationLabel.Text = "You must select a shipping type and at least one destination."; } else { ShippingConfirmationLabel.Text = string.Format("Using {0} shipping to:<br>", _ ShippingTypeRadioButtonList.SelectedValue); foreach(ListItem li in DestinationsCheckBoxList.Items) { if (li.Selected) { ShippingConfirmationLabel.Text += li.Value + "<br>"; } } } }

27. On the Advanced Customization page, select Connection Manager in the Section Name drop-down list, select HideDomain in the Key Name dropdown list, and type 1 in the Value text box. Click Apply, and then click Next. 28. When the Completing The Connection Manager Administration Kit Wizard page appears, note the path of the completed profile, and click Finish.

Run the web application. Add several names, and note that the AddButton.Click event handler successfully adds an item to the CheckBoxList. Select different shipping options, and note that you can only select one radio button at a time. Select one or more of the check boxes, and then click the Ship button. Notice that the ShipButton.Click event handler successfully reads the selected values. Open the page in Design view. Select the TextBox control and set its MaxLength property to 12 to restrict user input. Run the page and type in the TextBox control. Notice that you cannot type more than 12 characters into the control. In your web browser, view the page source. Notice that the Label control, which you used to display the Name prompt, is surrounded by a <span> element. Notice that the Literal controls do not have this element.

10. 11. 12.

1. Browse to the Program Files\Cmak\Profiles\PPTPCorp folder. 2. Copy PPTPCorp.exe to the shared folder on IIS1.

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