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# Choose Function

Trả về một giá trị đã chọn từ một danh sách các đối số.

### Syntax:

      Choose (Index As Integer, Expression1[, Expression2, ... [, Expression_n]]) As Variant

### Return type:

Variant. A value inferred from the Index parameter.

### Parameters:

Index: Any numeric expression rounded to a whole number. Index accepts integer values starting at 1 that specify which of the possible choices to return.

Expression1, Expression2, …, Expression_n: Expressions representing each of the possible choices.

The Choose function returns a value from the list of expressions based on the index value. If Index = 1, the function returns the first expression in the list, if Index = 2, it returns the second expression, and so on.

If the index value is less than 1 or greater than the number of expressions listed, the function returns a Null value.

Error #5 occurs when parameters are omitted. Error #13 occurs if Index equals Null.

### Error codes:

5 Sai gọi thủ tục

13 Kiểu không khớp

### Example:

The following example uses the or Choose function to select a string from several strings that form a menu:

    Sub ExampleChoose
        Print ChooseMenu(2) ' "Save Format"
        MsgBox Choose(index :=  -5, 9, "Basic", PI) ' Null
        MsgBox Choose(index := 3.14, 9, "Basic", PI) ' PI
    End Sub

    Function ChooseMenu(Index As Integer)
        ChooseMenu = Choose(Chỉ số, "Định dạng nhanh", "Định dạng lưu", "Định dạng hệ thống")
    End Function

Chủ đề Liên quan

Select...Case Statement

Switch Function

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