Step 3: Set your form properties
Next, you use the Properties window to change the way your form looks.
How to set your form properties
Be sure you're looking at Windows Forms Designer. In the Visual Studio integrated development environment (IDE), choose the Form1.cs [Design] tab (or the Form1.vb [Design] tab in Visual Basic).
Choose anywhere inside the form Form1 to select it. Look at the Properties window, which should now be showing the properties for the form. Forms have various properties. For example, you can set the foreground and background color, title text that appears at the top of the form, size of the form, and other properties.
If the Properties window doesn't appear, stop your app by choosing the square Stop Debugging button on the toolbar, or just close the window. If the app is stopped and you still don't see the Properties window, on the menu bar, choose View > Properties Window.
After the form is selected, find the Text property in the Properties window. Depending on how the list is sorted, you might need to scroll down. Choose Text, type Picture Viewer, and then choose Enter. Your form should now have the text Picture Viewer in its title bar, and the Properties window should look similar to the following screenshot.
Properties can be ordered by a Categorized or Alphabetical view. You can switch between these two views by using the buttons on the Properties window. In this tutorial, it's easier to find properties through the Alphabetical view.
Go back to Windows Forms Designer. Choose the form's lower-right drag handle, which is the small white square in the lower-right of the form and appears as follows.
Drag the handle to resize the form so the form is wider and a bit taller.
Look at the Properties window, and notice that the Size property has changed. The Size property changes each time you resize the form. Try dragging the form's handle to resize it to a form size of approximately 550, 350 (no need to be exact), which should work well for this project. As an alternative, you can enter the values directly in the Size property and then choose the Enter key.
Run your app again. Remember, you can use any of the following methods to run your app.
Choose the F5 key.
On the menu bar, choose Debug > Start Debugging.
On the toolbar, choose the Start Debugging button, which appears as follows.
Start Debugging toolbar button
Just like before, the IDE builds and runs your app, and a window appears.
Before going to the next step, stop your app, because the IDE won't let you change your app while it's running. Remember, you can use any of the following methods to stop your app.
On the toolbar, choose the Stop Debugging button.
On the menu bar, choose Debug > Stop Debugging.
Use your keyboard and press Shift+F5.
Choose the X button in the upper corner of the Picture Viewer window.
To go to the next tutorial step, see Step 4: Lay out your form with a TableLayoutPanel control.
To return to the previous tutorial step, see Step 2: Run your picture viewer app.