Chapter 7 Quick Reference

Chapter 7 Quick Reference

To	Do this
Execute a group of program statements a specific number of times	Insert the statements between For and Next statements in a loop. For example: Dim i As Integer For I = 1 To 10 MsgBox("Press OK already!") Next i
Use a specific sequence of numbers with statements	Insert the statements in a For…Next loop, and use the To and Step keywords to define the sequence of numbers. For example: Dim i As Integer For i = 2 To 8 Step 2 TextBox1.Text = TextBox1.Text & i Next I
Avoid an endless Do loop	Be sure the loop has a test condition that can evaluate to False.
Exit a For…Next loop prematurely	Use the Exit For statement. For example: Dim InpName As String Dim i As Integer For i = 1 To 10 InpName = InputBox("Name?") If InpName = "Trotsky" Then Exit For TextBox1.Text = InpName Next i
Execute a group of program statements until a specific condition is met	Insert the statements between Do and Loop statements. For example: Dim Query As String = "" Do While Query <> "Yes" Query = InputBox("Trotsky?") If Query = "Yes" Then MsgBox("Hi") Loop
Loop until a specific condition is True	Use a Do loop with the Until keyword. For example: Dim GiveIn As String Do GiveIn = InputBox("Say 'Uncle'") Loop Until GiveIn = "Uncle"
Loop for a specific period of time in your program	Use the Timer control.
Insert a code snippet into your program	In the Code Editor, position the insertion point (I-beam) at the location where you want to insert the snippet. On the Edit menu, click Intelli-Sense, and then click Insert Snippet. Browse to the snippet that you want to use, and then double click the snippet name.
Add or reorganize snippets in the Insert Snippet list box	Click the Code Snippet Manager command on the Tools menu.