qr code in c# You can delete an object by selecting the object on the form and then pressing Delete. in C#.NET

Generating QR Code 2d barcode in C#.NET You can delete an object by selecting the object on the form and then pressing Delete.

You can delete an object by selecting the object on the form and then pressing Delete.
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Move or resize the button as necessary after you place it. If you make a mistake, feel free to delete the button and start over.
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Now you ll add the labels used to display the numbers in the program. A label is a special user interface element designed to display text, numbers, or symbols when a program runs. When the user clicks the Lucky Seven program s Spin button, three random numbers appear in the label boxes. If one of the numbers is a 7, the user hits the jackpot.
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2 Writing Your First Program
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Add the number labels
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Label control
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Click the Label control in the Toolbox. Place the mouse pointer over the form. The mouse pointer changes to crosshairs and a letter A icon. Draw a small rectangular box like the one shown in the following illustration. The label object you have created is named Label1, the first label in the program. Now you ll create two more labels, named Label2 and Label3, on the form.
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Click the Label control in the Toolbox, and then draw a label box to the right of the first label. Make this label the same size as the first. The text Label2 will appear in the label.
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Click the Label control again, and add a third label to the form, to the right of the second label. The text Label3 appears in the label. Now you ll use the Label control to add a descriptive label to your form. This will be the fourth and final label in the program.
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Click the Label control in the Toolbox. Draw a larger rectangle directly below the two buttons.
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When you ve finished, your four labels should look like those in the illustration on the following page. (You can resize the label objects if they don t look quite right.)
Your First Program
Microsoft Visual Basic .NET Step by Step
Now you ll add a picture box to the form to graphically display the payout you ll receive when you draw a 7 and hit the jackpot. A picture box is designed to display bitmaps, icons, digital photos, and other artwork in a program. One of the best uses for a picture box is to display a JPEG image file.
Add a picture
PictureBox control
Click the PictureBox control in the Toolbox. Using the PictureBox control, draw a large rectangular box directly beneath the three number labels. When you ve finished, your picture box object should look like this:
This object will be named PictureBox1 in your program; you ll use this name later in the program code.
Now you re ready to customize your interface by setting a few properties.
2 Writing Your First Program
Setting the Properties
As you discovered in 1, you can change properties by selecting objects on the form and changing their settings in the Properties window. You ll start by changing the property settings for the two buttons.
Set the button properties
1 2 Click the first button (Button1) on the form. The button is selected and is surrounded by resize handles. Double-click the Properties window title bar.
Your First Program
If the Properties window isn t visible, click the Properties Window command on the View menu or press F4.
Resize the Properties window so that there is plenty of room to see the property names and their current settings. Once you get used to setting properties, it s OK to use the Properties window without enlarging it, but making it bigger helps when you first try it out. The Properties window in the following illustration is a good size for setting properties:
Microsoft Visual Basic .NET Step by Step
The Properties window lists the settings for the first button. These include settings for the background color, text, font height, and width of the button. Because there are so many properties, Visual Studio organizes them into categories and displays them in outline view. If you want to see the properties in a category, click the plus sign (+) next to the category title. 4 5 6 Scroll in the Properties window until you see the Text property, located in the Appearance category. Double-click the Text property in the left column of the Properties window. The current Text setting ( Button1 ) is highlighted in the Properties window. Type Spin, and press Enter. The Text property changes to Spin in the Properties window and on the button on the form. Now you ll change the Text property of the second button to End . (You ll select the second button in a new way this time.) 7 Open the Object drop-down list box at the top of the Properties window. A list of the interface objects in your program appears:
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