Exit Statement (Visual Basic)
Exits a procedure or block and transfers control immediately to the statement following the procedure call or the block definition.
Exit { Do | For | Function | Property | Select | Sub | Try | While }
Exit Do
Immediately exits the Do
loop in which it appears. Execution continues with the statement following the Loop
statement. Exit Do
can be used only inside a Do
loop. When used within nested Do
loops, Exit Do
exits the innermost loop and transfers control to the next higher level of nesting.
Exit For
Immediately exits the For
loop in which it appears. Execution continues with the statement following the Next
statement. Exit For
can be used only inside a For
...Next
or For Each
...Next
loop. When used within nested For
loops, Exit For
exits the innermost loop and transfers control to the next higher level of nesting.
Exit Function
Immediately exits the Function
procedure in which it appears. Execution continues with the statement following the statement that called the Function
procedure. Exit Function
can be used only inside a Function
procedure.
To specify a return value, you can assign the value to the function name on a line before the Exit Function
statement. To assign the return value and exit the function in one statement, you can instead use the Return Statement.
Exit Property
Immediately exits the Property
procedure in which it appears. Execution continues with the statement that called the Property
procedure, that is, with the statement requesting or setting the property's value. Exit Property
can be used only inside a property's Get
or Set
procedure.
To specify a return value in a Get
procedure, you can assign the value to the function name on a line before the Exit Property
statement. To assign the return value and exit the Get
procedure in one statement, you can instead use the Return
statement.
In a Set
procedure, the Exit Property
statement is equivalent to the Return
statement.
Exit Select
Immediately exits the Select Case
block in which it appears. Execution continues with the statement following the End Select
statement. Exit Select
can be used only inside a Select Case
statement.
Exit Sub
Immediately exits the Sub
procedure in which it appears. Execution continues with the statement following the statement that called the Sub
procedure. Exit Sub
can be used only inside a Sub
procedure.
In a Sub
procedure, the Exit Sub
statement is equivalent to the Return
statement.
Exit Try
Immediately exits the Try
or Catch
block in which it appears. Execution continues with the Finally
block if there is one, or with the statement following the End Try
statement otherwise. Exit Try
can be used only inside a Try
or Catch
block, and not inside a Finally
block.
Exit While
Immediately exits the While
loop in which it appears. Execution continues with the statement following the End While
statement. Exit While
can be used only inside a While
loop. When used within nested While
loops, Exit While
transfers control to the loop that is one nested level above the loop where Exit While
occurs.
Do not confuse Exit
statements with End
statements. Exit
does not define the end of a statement.
In the following example, the loop condition stops the loop when the index
variable is greater than 100. The If
statement in the loop, however, causes the Exit Do
statement to stop the loop when the index variable is greater than 10.
Dim index As Integer = 0
Do While index <= 100
If index > 10 Then
Exit Do
End If
Debug.Write(index.ToString & " ")
index += 1
Loop
Debug.WriteLine("")
' Output: 0 1 2 3 4 5 6 7 8 9 10
The following example assigns the return value to the function name myFunction
, and then uses Exit Function
to return from the function:
Function MyFunction(ByVal j As Integer) As Double
MyFunction = 3.87 * j
Exit Function
End Function
The following example uses the Return Statement to assign the return value and exit the function:
Function MyFunction(ByVal j As Integer) As Double
Return 3.87 * j
End Function
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