c# generate barcode from string Lesson Summary in Visual C#.NET

Paint Quick Response Code in Visual C#.NET Lesson Summary

Lesson Summary
Denso QR Bar Code Creation In C#
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Read QR Code JIS X 0510 In C#
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To send a message, create an instance of SmtpClient. Configure the SMTP server host name, and then call SmtpClient.Send.
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Bar Code Recognizer In Visual C#.NET
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Lesson 2: Sending Mail
QR Code Generator In .NET Framework
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QR Code ISO/IEC18004 Creation In Visual Studio .NET
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If you call SmtpClient.Send without defining the server hostname, the runtime will throw an InvalidOperationException. If the hostname is defined but the server cannot be found, the runtime will throw an SmtpException with an inner WebException. If the SMTP server reports that the recipient is invalid, the runtime will throw an SmtpFailedRecipientException. All other problems sending e-mail result in an SmtpException. To use the default network credentials, set SmtpClient.UseDefaultCredentials to True. To specify the username and password, create an instance of the System. Net.NetworkCredential class, and use it to define SmtpClient.Credentials. To enable SSL encryption for the SMTP connection, set SmtpClient.EnableSsl to True. Not all SMTP servers support SSL. To send a message asynchronously, first create a method to respond to the SmtpClient .SendCompleted event. Then add your event handler to SmtpClient.SendCompleted, and call SmtpClient.SendAsync. You can call SmtpClient.SendAsyncCancel to cancel an asynchronous message transmission before it has completed.
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Creating UPC-A Supplement 5 In Visual C#
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Lesson Review
Linear Barcode Printer In C#.NET
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European Article Number 13 Generation In Visual C#
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You can use the following questions to test your knowledge of the information in Lesson 2, Sending Mail. The questions are also available on the companion CD if you prefer to review them in electronic form.
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Painting MSI Plessey In Visual C#
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NOTE Answers
Decoding Code 128 Code Set A In None
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Printing Linear 1D Barcode In .NET
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Answers to these questions and explanations of why each answer choice is right or wrong are located in the Answers section at the end of the book.
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PDF 417 Recognizer In Visual Basic .NET
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1. Which method would you call to send an e-mail message and wait for the transmission to complete before proceeding A. MailMessage.Send B. SmtpClient.Send C. SmtpClient.SendAsync D. MailMessage.SendAsync 2. You need to send e-mail messages from your assembly. The computer that will run your assembly also hosts an SMTP server. Which of the following are valid values for SmtpClient.Host (Choose all that apply.) A. self B. 10.1.1.1
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15
PDF-417 2d Barcode Creator In .NET
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Making Code 39 Full ASCII In .NET
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Mail
C. localhost D. 127.0.0.1 3. What type of exception will the runtime throw if the SMTP server rejects a recipient e-mail address A. SmtpFailedRecipientException B. SmtpFailedRecipientsException C. SmtpException D. SmtpClientException 4. You want to send an e-mail message to an SMTP server while encrypting the network communications. Which property do you need to modify from its default settings A. SmtpClient.Credentials B. SmtpClient.DeliveryMethod C. SmtpClient.Port D. SmtpClient.EnableSsl
15 Review
Review
To further practice and reinforce the skills you learned in this chapter, you can perform the following tasks:
Review the chapter summary. Review the list of key terms introduced in this chapter. Complete the case scenarios. These scenarios set up real-world situations involving the topics of this chapter and ask you to create a solution. Complete the suggested practices. Take a practice test.
Summary
To create an e-mail message, use the System.Net.MailMessage class. This class supports simple text e-mails, HTML e-mails, e-mails with multiple views and different encoding standards, and attachments. To send an e-mail message, use the System.Net.SmtpClient class. This class supports SMTP servers that accept anonymous connections, servers that require authentication, and servers that support SSL encryption. Additionally, you can send messages asynchronously to allow users to cancel a message before the transmission has completed.
Key Terms
Do you know what these key terms mean You can check your answers by looking up the terms in the glossary at the end of the book.
Multipurpose Internet Mail Extensions (MIME) Secure Sockets Layer (SSL) Simple Message Transfer Protocol (SMTP)
Case Scenario: Add E-mail Capabilities to an Existing Application
In the following case scenario, you will apply what you ve learned about how to send e-mails. You can find answers to these questions in the Answers section at the end of this book.
15 Review
You are an application developer for Contoso, Inc. For the last two years, you have been developing and maintaining an internal customer relationship management system. Recently, the Contoso Sales group has asked for a way to send confirmation e-mails to customers before making changes to their account information. Your manager asks you to interview key people and then come to her office to answer her questions about your design choices.
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