VBA Loops - For, Do- While and Do- Until Loops. Home » Excel- VBA- Tutorial » VBA- Loops. If, in your VBA program, you need to perform the same task (i. VBA Loops. The VBA Loop types are: Each of the above loop types is discussed separately below. The Visual Basic For Loop. ![]() The Visual Basic 'For' loop takes on two separate forms. These are the For .. Next loop and the For Each loop. Prestamos En LineaSoftware para prestamistas, financieras, inversionistas y cualquier negocio que presta dinero. De gran utilidad para ventas con financiamiento.Le permite administrar. Todos los idiomas se han enriquecido a lo largo de su historia con aportaciones léxicas procedentes de lenguas diversas. Los extranjerismos no son, pues, rechazables. Search the world's information, including webpages, images, videos and more. Google has many special features to help you find exactly what you're looking for. 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Next loop uses a variable, which cycles through a series of values within a specified range. ![]() The VBA code inside the loop is then executed for each value. This is best explained by way of a simple example: For i = 1 To 1. Total = Total + i. Array(i)Next i. The above simple For .. Next loop sets the variable i to have the values 1, 2, 3, .., 1. VBA code inside the loop. Therefore, in the above example, the loop adds each of the members of the array i. Array to the variable, Total. In the above example, no step size is specified, so the loop uses the default step size of 1, when looping from 1 to 1. However, you may sometimes want to step through a loop using different sized steps. This can be done using the Step keyword, as shown in the following simple example. For d = 0 To 1. 0 Step 0. Total = d. Total + d. Next d. In the above For loop, because the step size is specified as 0. VBA code inside the loop. You can also use negative step sizes in the VBA For loop, as is illustrated below: For i = 1. To 1 Step - 1i. Array(i) = i. Next i. In this example, the step size is specified as - 1, and so the loop sets the variable i to have the values, 1. The For Each Loop. The For Each loop is similar to the For .. Next loop but, instead of running through a set of values for a variable, the For Each loop runs through every object within a set of objects. For example, the following code shows the For Each loop used to list every Worksheet in the current Excel Workbook: Dim w. Sheet As Worksheet. For Each w. Sheet in Worksheets. Msg. Box "Found Worksheet: " & w. Sheet. Name. Next w. Sheet. The Exit For Statement. If, you want to exit a 'For' Loop early, you can use the Exit For statement. This statement causes VBA to jump out of the loop and continue with the next line of code outside of the loop. For example, when searching for a particular value in an array, you could use a loop to check each entry of the array. However, once you have found the value you are looking for, there is no need to continue searching, so you exit the loop early. The Exit For statement is illustrated in the following example, which loops through 1. Val'. The loop is exited early if d. Val is found in the array: For i = 1 To 1. If d. Values(i) = d. Val Thenindex. Val = i. Exit For. End If. Next i. The Visual Basic Do While Loop. The Do While loop repeatedly executes a section of code while a specified condition continues to evaluate to True. This is shown in the following Sub procedure, where a Do While loop is used to print out all values of the Fibonacci Sequence until the current value is greater than 1,0. Sub Fibonacci()Dim i As Integer Dim i. Fib As Integer Dim i. Fib_Next As Integer Dim i. Step As Integer i = 1i. Fib_Next = 0. Do While i. Fib_Next < 1. 00. If i = 1 Theni. Step = 1i. Fib = 0. Elsei. Step = i. Fibi. Fib = i. Fib_Next. End If. Cells(i, 1). Value = i. Fibi. Fib_Next = i. Fib + i. Stepi = i + 1. Loop. End Sub. It can be seen that, in the above example, the condition i. Fib_Next < 1. 00. Therefore, if the first value of i. Fib_Next were greater than 1,0. Another way that you can implement the Do While loop is to place the condition at the end of the loop instead of at the beginning. This causes the loop to be executed at least once, regardless of whether or not the condition initially evaluates to True. The following code shows the form of a Do While Loop which has the condition at the end of the loop: Do.. Loop While i. Fib_Next < 1. The Visual Basic Do Until Loop. The Do Until loop is very similar to the Do While loop. The loop repeatedly executes a section of code until a specified condition evaluates to True. This is shown in the following sub procedure, where a Do Until loop is used to extract the values from all cells in Column A of a Worksheet, until it encounters an empty cell: i. Row = 1. Do Until Is. Empty(Cells(i. Row, 1))d. Cell. Values(i. Row) = Cells(i. Row, 1). Valuei. Row = i. Row + 1. Loop. In the above example, as the condition Is. Empty(Cells(i. Row, 1)) is at the start of the Do Until loop, the loop will only be entered if the first cell encountered is non- blank. However, as illustrated in the Do While loop, you may sometimes want to enter the loop at least once, regardless of the initial condition. In this case, the condition can be placed at the end of the loop, as follows: Do.. Loop Until Is. Empty(Cells(i.
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