When declaring variables to hold an integer using the Dim statement[2], use the code “Dim rowNumber as Integer.” The term “Dim” should appear at the preceding part of a variable. If the data type is not specified when declaring the variable or the variable is not declared at all, ...
PrivateNumberOfEmployeesAsInteger You can also use aPrivatestatement to declare the object type of a variable. 以下语句为新的工作表实例声明一个变量: VB PrivateXAsNewWorksheet 如果在声明对象变量时未使用New关键字 (keyword) ,则必须使用Set语句为引用对象的变量分配现有对象,然后才能使用它。 在为其分配对...
Also use aPublicstatement to declare the object type of a variable. 以下语句为新的工作表实例声明一个变量: VB PublicXAsNewWorksheet 如果在声明对象变量时未使用New关键字 (keyword) ,则必须使用Set语句为引用对象的变量分配现有对象,然后才能使用它。 在为其分配对象之前,声明的对象变量具有特殊值Nothing,指示...
Guide to VBA Variable Declaration. Here we understand how to declare variable in VBA and when to use it with examples & download template
Guide to VBA Type. Here we learn how to construct a Type statement in VBA to define variables along with practical examples and a downloadable template.
Type EmployeeRecord ' Create user-defined type. ID As Integer ' Define elements of data type. Name As String * 20 Address As String * 30 Phone As Long HireDate As Date End Type Sub CreateRecord() Dim MyRecord As EmployeeRecord ' Declare variable. ' Assignment to EmployeeRecord variab...
Type EmployeeRecord' Create user-defined type.IDAsInteger' Define elements of data type.NameAsString*20AddressAsString*30PhoneAsLongHireDateAsDateEndTypeSubCreateRecord()DimMyRecordAsEmployeeRecord' Declare variable.' Assignment to EmployeeRecord variable must occur in a procedure.MyRecord.ID =12003'...
End Type 'public variable Public get_item_all_dev(50) As db_attribute '全部设备信息 Public db_index As Integer '全部设备db块数量'///_获取井名称_ Public Sub GET_点() On Error Resume Next Application.ScreenUpdating = False Dim WellName(300) As String Dim...
If a variable of type Variant has never been assigned a value, it is Empty. You can test this using the function IsEmpty: prettyprint Dim b As Variant If IsEmpty(b) Then MsgBox "b is empty" End If You can also set the variable to Empty if you don't need it any more: ...
When converting a Boolean variable to a numeric VBA data type, TRUE becomes -1 and FALSE becomes 0. Dim myBool As Boolean Dim myInteger As Integer myBool = True myInteger = myBool Debug.Print myInteger // -1 (True) 0 (False)