generate barcode c# Figure 3-16 Creating a Windows application using the New Project dialog box in Visual C#

Creating QR in Visual C# Figure 3-16 Creating a Windows application using the New Project dialog box

Figure 3-16 Creating a Windows application using the New Project dialog box
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3: Creating Your First Application
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You ll immediately see that the result of this operation is quite different for the Windows application process than it was for the console application process. You should see the Windows Form Designer as displayed in Figure 3-17.
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Figure 3-17 IDE with the Windows Form Designer and an empty form
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2 the plus (+) sign next to the Common Controls. You ll see a
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On the left side of the IDE, move your mouse over the Toolbox tab to open the Toolbox window. Click
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list of form controls that are often seen in a Windows application. Select the Button control and drag it onto the Designer surface. You should get a form that looks like the one in Figure 3-18.
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Figure 3-18 Windows Form Designer surface with a Button control
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Microsoft Visual C# 2005 Express Edition: Build a Program Now!
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Maybe you don t realize it but at this moment you already have a full and valid Windows application without having written a single line of code. The application doesn t do anything very useful at this point, but it works! You can easily verify this by running the application. Just hit F5 and see for yourself. This is part of the magic and the beauty of using the Visual Studio IDE environment for programming instead of using a text editor like Notepad. Visual Studio writes a lot of code for you, and in 5, we ll take a look at some of the activity that s taking place behind the scenes to make it appear like magic. When finished, click the Close button on the form to return to the IDE. Double-click the button on the
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Figure 3-19 Button-click method with the code from our previous example
3 designer surface. You ll get the
familiar source code window but with different content this time. For now, type or copy the code under the Static void Main(string [ ] args) from the console application you created previously in the Button1_Click method as shown in Figure 3-19. (You ll learn more about this method and the whole process behind the double-click in 4.) In the source code, find the words
4 Console.WriteLine and replace them with the words MessageBox.Show.
Then build and execute the application by hitting F5. When the form comes up, click the button and you ll see the result of your
5 application: a message box with the same string you ve seen in the console
application. It should look like Figure 3-20. Click OK in the message box and then quit the program by clicking the Close button on the main form.
Figure 3-20 Output of MyFirstWindowsApplication
3: Creating Your First Application
Congratulations! You ve just created your first two applications: a console application and a Windows application.
In Summary...
Keywords and Links to More Information
Keywords: declaring variables; string concatenation Another good source of information is the videos from MSDN. These videos were specifically created to cover the Visual C# 2005 Express Edition product. You can find video for Lesson 1 at the following location: http://go.microsoft.com/fwlink/ linkid=44030&clcid=0x409
In this chapter, you learned some key information that will help you build on the skills you ve started developing in the previous chapters. You learned the differences between a console application and a Windows application. You started the product, went through the IDE, and learned its major components. You created two versions of the same application: a console application and a Windows application. While learning about console applications, you also learned what the Solution Explorer is as well as how to search and use the product documentation and the Help system. In the next chapter, you ll build on this knowledge and write a simple Web browser. For now, if you want to read more about some topics covered in this chapter, simply create a search query by pressing F1 and then type in the keywords provided in the box to the left. I ve also added a link to videos that are a good source of information to continue your learning.
Microsoft Visual C# 2005 Express Edition: Build a Program Now!
4 Create Your Own Web Browser in Less Than Five Minutes!
What Is a Project , 46 What Is the Design Layout , 47 Putting It All Together, 54
Now that you ve gotten a little experience with creating simple applications in Microsoft Visual C# 2005 Express Edition, you ll build a more complicated application in this chapter and finish it in 6. In this chapter, you ll start with the basic framework of the application; in the next two chapters, you ll continue to learn new features and add them to enhance your project. In this chapter, you re going to learn how to build your own basic Web browser, and you ll be able to do it in five minutes or less!
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