Strings.Len Method
Important
Some information relates to prerelease product that may be substantially modified before it’s released. Microsoft makes no warranties, express or implied, with respect to the information provided here.
Returns an integer containing either the number of characters in a string or the nominal number of bytes required to store a variable.
Len(UInt64) |
Returns an integer containing either the number of characters in a string or the nominal number of bytes required to store a variable. |
Len(UInt32) |
Returns an integer containing either the number of characters in a string or the nominal number of bytes required to store a variable. |
Len(UInt16) |
Returns an integer containing either the number of characters in a string or the nominal number of bytes required to store a variable. |
Len(String) |
Returns an integer containing either the number of characters in a string or the nominal number of bytes required to store a variable. |
Len(Single) |
Returns an integer containing either the number of characters in a string or the nominal number of bytes required to store a variable. |
Len(SByte) |
Returns an integer containing either the number of characters in a string or the nominal number of bytes required to store a variable. |
Len(Object) |
Returns an integer containing either the number of characters in a string or the nominal number of bytes required to store a variable. |
Len(Int64) |
Returns an integer containing either the number of characters in a string or the nominal number of bytes required to store a variable. |
Len(Int16) |
Returns an integer containing either the number of characters in a string or the nominal number of bytes required to store a variable. |
Len(Double) |
Returns an integer containing either the number of characters in a string or the nominal number of bytes required to store a variable. |
Len(Decimal) |
Returns an integer containing either the number of characters in a string or the nominal number of bytes required to store a variable. |
Len(DateTime) |
Returns an integer containing either the number of characters in a string or the nominal number of bytes required to store a variable. |
Len(Char) |
Returns an integer containing either the number of characters in a string or the nominal number of bytes required to store a variable. |
Len(Byte) |
Returns an integer containing either the number of characters in a string or the nominal number of bytes required to store a variable. |
Len(Boolean) |
Returns an integer containing either the number of characters in a string or the nominal number of bytes required to store a variable. |
Len(Int32) |
Returns an integer containing either the number of characters in a string or the nominal number of bytes required to store a variable. |
- Source:
- Strings.vb
- Source:
- Strings.vb
- Source:
- Strings.vb
Important
This API is not CLS-compliant.
- CLS-compliant alternative
- Microsoft.VisualBasic.Strings.Len(Int64)
Returns an integer containing either the number of characters in a string or the nominal number of bytes required to store a variable.
public:
static int Len(System::UInt64 Expression);
[System.CLSCompliant(false)]
public static int Len (ulong Expression);
[<System.CLSCompliant(false)>]
static member Len : uint64 -> int
Public Function Len (Expression As ULong) As Integer
Parameters
- Expression
- UInt64
Any valid String
expression or variable name. If Expression
is of type Object
, the Len
function returns the size as it will be written to the file by the FilePut
function.
Returns
An integer containing either the number of characters in a string or the nominal number of bytes required to store a variable.
- Attributes
Examples
This example uses Len
to return the number of characters in a string.
' Initializes variable.
Dim testString As String = "Hello World"
' Returns 11.
Dim testLen As Integer = Len(testString)
Remarks
With user-defined types and Object
variables, the Len
function returns the size as it will be written to the file by the FilePut
function. If an Object
contains a String
, it will return the length of the string. If an Object
contains any other type, it will return the size of the object as it will be written to the file by the FilePut
function.
The VBFixedString
attribute can be applied to string fields in objects to indicate the size of the string, in bytes, when written to disk. The Len
function uses the VBFixedString
attribute, if available, when determining the size of Object
variables.
Notitie
The Len
function may not be able to determine the actual number of storage bytes required when used with variable-length strings in user-defined data types.
Notitie
The LenB
function in earlier versions of Visual Basic returns the number of bytes in a string rather than characters. It is used primarily for converting strings in double-byte character set (DBCS) applications. All current Visual Basic strings are in Unicode, and LenB
is no longer supported.
Smart Device Developer Notes
The Len
function accepts only String
and Object
variables as parameters. If an Object
contains a String
, it will return the length of the String
. If a parameter is a NULL Object
reference, the function returns zero. If an Object
contains any other type, an exception is thrown.
See also
Applies to
.NET 9 en andere versies
Product | Versies |
---|---|
.NET | Core 3.0, Core 3.1, 5, 6, 7, 8, 9 |
.NET Framework | 2.0, 3.0, 3.5, 4.0, 4.5, 4.5.1, 4.5.2, 4.6, 4.6.1, 4.6.2, 4.7, 4.7.1, 4.7.2, 4.8, 4.8.1 |
- Source:
- Strings.vb
- Source:
- Strings.vb
- Source:
- Strings.vb
Important
This API is not CLS-compliant.
- CLS-compliant alternative
- Microsoft.VisualBasic.Strings.Len(Int32)
Returns an integer containing either the number of characters in a string or the nominal number of bytes required to store a variable.
public:
static int Len(System::UInt32 Expression);
[System.CLSCompliant(false)]
public static int Len (uint Expression);
[<System.CLSCompliant(false)>]
static member Len : uint32 -> int
Public Function Len (Expression As UInteger) As Integer
Parameters
- Expression
- UInt32
Any valid String
expression or variable name. If Expression
is of type Object
, the Len
function returns the size as it will be written to the file by the FilePut
function.
Returns
An integer containing either the number of characters in a string or the nominal number of bytes required to store a variable.
- Attributes
Examples
This example uses Len
to return the number of characters in a string.
' Initializes variable.
Dim testString As String = "Hello World"
' Returns 11.
Dim testLen As Integer = Len(testString)
Remarks
With user-defined types and Object
variables, the Len
function returns the size as it will be written to the file by the FilePut
function. If an Object
contains a String
, it will return the length of the string. If an Object
contains any other type, it will return the size of the object as it will be written to the file by the FilePut
function.
The VBFixedString
attribute can be applied to string fields in objects to indicate the size of the string, in bytes, when written to disk. The Len
function uses the VBFixedString
attribute, if available, when determining the size of Object
variables.
Notitie
The Len
function may not be able to determine the actual number of storage bytes required when used with variable-length strings in user-defined data types.
Notitie
The LenB
function in earlier versions of Visual Basic returns the number of bytes in a string rather than characters. It is used primarily for converting strings in double-byte character set (DBCS) applications. All current Visual Basic strings are in Unicode, and LenB
is no longer supported.
Smart Device Developer Notes
The Len
function accepts only String
and Object
variables as parameters. If an Object
contains a String
, it will return the length of the String
. If a parameter is a NULL Object
reference, the function returns zero. If an Object
contains any other type, an exception is thrown.
See also
Applies to
.NET 9 en andere versies
Product | Versies |
---|---|
.NET | Core 3.0, Core 3.1, 5, 6, 7, 8, 9 |
.NET Framework | 2.0, 3.0, 3.5, 4.0, 4.5, 4.5.1, 4.5.2, 4.6, 4.6.1, 4.6.2, 4.7, 4.7.1, 4.7.2, 4.8, 4.8.1 |
- Source:
- Strings.vb
- Source:
- Strings.vb
- Source:
- Strings.vb
Important
This API is not CLS-compliant.
- CLS-compliant alternative
- Microsoft.VisualBasic.Strings.Len(Int16)
Returns an integer containing either the number of characters in a string or the nominal number of bytes required to store a variable.
public:
static int Len(System::UInt16 Expression);
[System.CLSCompliant(false)]
public static int Len (ushort Expression);
[<System.CLSCompliant(false)>]
static member Len : uint16 -> int
Public Function Len (Expression As UShort) As Integer
Parameters
- Expression
- UInt16
Any valid String
expression or variable name. If Expression
is of type Object
, the Len
function returns the size as it will be written to the file by the FilePut
function.
Returns
An integer containing either the number of characters in a string or the nominal number of bytes required to store a variable.
- Attributes
Examples
This example uses Len
to return the number of characters in a string.
' Initializes variable.
Dim testString As String = "Hello World"
' Returns 11.
Dim testLen As Integer = Len(testString)
Remarks
With user-defined types and Object
variables, the Len
function returns the size as it will be written to the file by the FilePut
function. If an Object
contains a String
, it will return the length of the string. If an Object
contains any other type, it will return the size of the object as it will be written to the file by the FilePut
function.
The VBFixedString
attribute can be applied to string fields in objects to indicate the size of the string, in bytes, when written to disk. The Len
function uses the VBFixedString
attribute, if available, when determining the size of Object
variables.
Notitie
The Len
function may not be able to determine the actual number of storage bytes required when used with variable-length strings in user-defined data types.
Notitie
The LenB
function in earlier versions of Visual Basic returns the number of bytes in a string rather than characters. It is used primarily for converting strings in double-byte character set (DBCS) applications. All current Visual Basic strings are in Unicode, and LenB
is no longer supported.
Smart Device Developer Notes
The Len
function accepts only String
and Object
variables as parameters. If an Object
contains a String
, it will return the length of the String
. If a parameter is a NULL Object
reference, the function returns zero. If an Object
contains any other type, an exception is thrown.
See also
Applies to
.NET 9 en andere versies
Product | Versies |
---|---|
.NET | Core 3.0, Core 3.1, 5, 6, 7, 8, 9 |
.NET Framework | 2.0, 3.0, 3.5, 4.0, 4.5, 4.5.1, 4.5.2, 4.6, 4.6.1, 4.6.2, 4.7, 4.7.1, 4.7.2, 4.8, 4.8.1 |
- Source:
- Strings.vb
- Source:
- Strings.vb
- Source:
- Strings.vb
Returns an integer containing either the number of characters in a string or the nominal number of bytes required to store a variable.
public:
static int Len(System::String ^ Expression);
public static int Len (string? Expression);
public static int Len (string Expression);
static member Len : string -> int
Public Function Len (Expression As String) As Integer
Parameters
- Expression
- String
Any valid String
expression or variable name. If Expression
is of type Object
, the Len
function returns the size as it will be written to the file by the FilePut
function.
Returns
An integer containing either the number of characters in a string or the nominal number of bytes required to store a variable.
Examples
This example uses Len
to return the number of characters in a string.
' Initializes variable.
Dim testString As String = "Hello World"
' Returns 11.
Dim testLen As Integer = Len(testString)
Remarks
With user-defined types and Object
variables, the Len
function returns the size as it will be written to the file by the FilePut
function. If an Object
contains a String
, it will return the length of the string. If an Object
contains any other type, it will return the size of the object as it will be written to the file by the FilePut
function.
The VBFixedString
attribute can be applied to string fields in objects to indicate the size of the string, in bytes, when written to disk. The Len
function uses the VBFixedString
attribute, if available, when determining the size of Object
variables.
Notitie
The Len
function may not be able to determine the actual number of storage bytes required when used with variable-length strings in user-defined data types.
Notitie
The LenB
function in earlier versions of Visual Basic returns the number of bytes in a string rather than characters. It is used primarily for converting strings in double-byte character set (DBCS) applications. All current Visual Basic strings are in Unicode, and LenB
is no longer supported.
Smart Device Developer Notes
The Len
function accepts only String
and Object
variables as parameters. If an Object
contains a String
, it will return the length of the String
. If a parameter is a NULL Object
reference, the function returns zero. If an Object
contains any other type, an exception is thrown.
See also
Applies to
.NET 9 en andere versies
Product | Versies |
---|---|
.NET | Core 3.0, Core 3.1, 5, 6, 7, 8, 9 |
.NET Framework | 1.1, 2.0, 3.0, 3.5, 4.0, 4.5, 4.5.1, 4.5.2, 4.6, 4.6.1, 4.6.2, 4.7, 4.7.1, 4.7.2, 4.8, 4.8.1 |
- Source:
- Strings.vb
- Source:
- Strings.vb
- Source:
- Strings.vb
Returns an integer containing either the number of characters in a string or the nominal number of bytes required to store a variable.
public:
static int Len(float Expression);
public static int Len (float Expression);
static member Len : single -> int
Public Function Len (Expression As Single) As Integer
Parameters
- Expression
- Single
Any valid String
expression or variable name. If Expression
is of type Object
, the Len
function returns the size as it will be written to the file by the FilePut
function.
Returns
An integer containing either the number of characters in a string or the nominal number of bytes required to store a variable.
Examples
This example uses Len
to return the number of characters in a string.
' Initializes variable.
Dim testString As String = "Hello World"
' Returns 11.
Dim testLen As Integer = Len(testString)
Remarks
With user-defined types and Object
variables, the Len
function returns the size as it will be written to the file by the FilePut
function. If an Object
contains a String
, it will return the length of the string. If an Object
contains any other type, it will return the size of the object as it will be written to the file by the FilePut
function.
The VBFixedString
attribute can be applied to string fields in objects to indicate the size of the string, in bytes, when written to disk. The Len
function uses the VBFixedString
attribute, if available, when determining the size of Object
variables.
Notitie
The Len
function may not be able to determine the actual number of storage bytes required when used with variable-length strings in user-defined data types.
Notitie
The LenB
function in earlier versions of Visual Basic returns the number of bytes in a string rather than characters. It is used primarily for converting strings in double-byte character set (DBCS) applications. All current Visual Basic strings are in Unicode, and LenB
is no longer supported.
Smart Device Developer Notes
The Len
function accepts only String
and Object
variables as parameters. If an Object
contains a String
, it will return the length of the String
. If a parameter is a NULL Object
reference, the function returns zero. If an Object
contains any other type, an exception is thrown.
See also
Applies to
.NET 9 en andere versies
Product | Versies |
---|---|
.NET | Core 3.0, Core 3.1, 5, 6, 7, 8, 9 |
.NET Framework | 1.1, 2.0, 3.0, 3.5, 4.0, 4.5, 4.5.1, 4.5.2, 4.6, 4.6.1, 4.6.2, 4.7, 4.7.1, 4.7.2, 4.8, 4.8.1 |
- Source:
- Strings.vb
- Source:
- Strings.vb
- Source:
- Strings.vb
Important
This API is not CLS-compliant.
- CLS-compliant alternative
- Microsoft.VisualBasic.Strings.Len(Byte)
Returns an integer containing either the number of characters in a string or the nominal number of bytes required to store a variable.
public:
static int Len(System::SByte Expression);
[System.CLSCompliant(false)]
public static int Len (sbyte Expression);
[<System.CLSCompliant(false)>]
static member Len : sbyte -> int
Public Function Len (Expression As SByte) As Integer
Parameters
- Expression
- SByte
Any valid String
expression or variable name. If Expression
is of type Object
, the Len
function returns the size as it will be written to the file by the FilePut
function.
Returns
An integer containing either the number of characters in a string or the nominal number of bytes required to store a variable.
- Attributes
Examples
This example uses Len
to return the number of characters in a string.
' Initializes variable.
Dim testString As String = "Hello World"
' Returns 11.
Dim testLen As Integer = Len(testString)
Remarks
With user-defined types and Object
variables, the Len
function returns the size as it will be written to the file by the FilePut
function. If an Object
contains a String
, it will return the length of the string. If an Object
contains any other type, it will return the size of the object as it will be written to the file by the FilePut
function.
The VBFixedString
attribute can be applied to string fields in objects to indicate the size of the string, in bytes, when written to disk. The Len
function uses the VBFixedString
attribute, if available, when determining the size of Object
variables.
Notitie
The Len
function may not be able to determine the actual number of storage bytes required when used with variable-length strings in user-defined data types.
Notitie
The LenB
function in earlier versions of Visual Basic returns the number of bytes in a string rather than characters. It is used primarily for converting strings in double-byte character set (DBCS) applications. All current Visual Basic strings are in Unicode, and LenB
is no longer supported.
Smart Device Developer Notes
The Len
function accepts only String
and Object
variables as parameters. If an Object
contains a String
, it will return the length of the String
. If a parameter is a NULL Object
reference, the function returns zero. If an Object
contains any other type, an exception is thrown.
See also
Applies to
.NET 9 en andere versies
Product | Versies |
---|---|
.NET | Core 3.0, Core 3.1, 5, 6, 7, 8, 9 |
.NET Framework | 2.0, 3.0, 3.5, 4.0, 4.5, 4.5.1, 4.5.2, 4.6, 4.6.1, 4.6.2, 4.7, 4.7.1, 4.7.2, 4.8, 4.8.1 |
- Source:
- Strings.vb
- Source:
- Strings.vb
- Source:
- Strings.vb
Returns an integer containing either the number of characters in a string or the nominal number of bytes required to store a variable.
public:
static int Len(System::Object ^ Expression);
public static int Len (object? Expression);
public static int Len (object Expression);
static member Len : obj -> int
Public Function Len (Expression As Object) As Integer
Parameters
- Expression
- Object
Any valid String
expression or variable name. If Expression
is of type Object
, the Len
function returns the size as it will be written to the file by the FilePut
function.
Returns
An integer containing either the number of characters in a string or the nominal number of bytes required to store a variable.
Examples
This example uses Len
to return the number of characters in a string.
' Initializes variable.
Dim testString As String = "Hello World"
' Returns 11.
Dim testLen As Integer = Len(testString)
Remarks
With user-defined types and Object
variables, the Len
function returns the size as it will be written to the file by the FilePut
function. If an Object
contains a String
, it will return the length of the string. If an Object
contains any other type, it will return the size of the object as it will be written to the file by the FilePut
function.
The VBFixedString
attribute can be applied to string fields in objects to indicate the size of the string, in bytes, when written to disk. The Len
function uses the VBFixedString
attribute, if available, when determining the size of Object
variables.
Notitie
The Len
function may not be able to determine the actual number of storage bytes required when used with variable-length strings in user-defined data types.
Notitie
The LenB
function in earlier versions of Visual Basic returns the number of bytes in a string rather than characters. It is used primarily for converting strings in double-byte character set (DBCS) applications. All current Visual Basic strings are in Unicode, and LenB
is no longer supported.
Smart Device Developer Notes
The Len
function accepts only String
and Object
variables as parameters. If an Object
contains a String
, it will return the length of the String
. If a parameter is a NULL Object
reference, the function returns zero. If an Object
contains any other type, an exception is thrown.
See also
Applies to
.NET 9 en andere versies
Product | Versies |
---|---|
.NET | Core 3.0, Core 3.1, 5, 6, 7, 8, 9 |
.NET Framework | 1.1, 2.0, 3.0, 3.5, 4.0, 4.5, 4.5.1, 4.5.2, 4.6, 4.6.1, 4.6.2, 4.7, 4.7.1, 4.7.2, 4.8, 4.8.1 |
- Source:
- Strings.vb
- Source:
- Strings.vb
- Source:
- Strings.vb
Returns an integer containing either the number of characters in a string or the nominal number of bytes required to store a variable.
public:
static int Len(long Expression);
public static int Len (long Expression);
static member Len : int64 -> int
Public Function Len (Expression As Long) As Integer
Parameters
- Expression
- Int64
Any valid String
expression or variable name. If Expression
is of type Object
, the Len
function returns the size as it will be written to the file by the FilePut
function.
Returns
An integer containing either the number of characters in a string or the nominal number of bytes required to store a variable.
Examples
This example uses Len
to return the number of characters in a string.
' Initializes variable.
Dim testString As String = "Hello World"
' Returns 11.
Dim testLen As Integer = Len(testString)
Remarks
With user-defined types and Object
variables, the Len
function returns the size as it will be written to the file by the FilePut
function. If an Object
contains a String
, it will return the length of the string. If an Object
contains any other type, it will return the size of the object as it will be written to the file by the FilePut
function.
The VBFixedString
attribute can be applied to string fields in objects to indicate the size of the string, in bytes, when written to disk. The Len
function uses the VBFixedString
attribute, if available, when determining the size of Object
variables.
Notitie
The Len
function may not be able to determine the actual number of storage bytes required when used with variable-length strings in user-defined data types.
Notitie
The LenB
function in earlier versions of Visual Basic returns the number of bytes in a string rather than characters. It is used primarily for converting strings in double-byte character set (DBCS) applications. All current Visual Basic strings are in Unicode, and LenB
is no longer supported.
Smart Device Developer Notes
The Len
function accepts only String
and Object
variables as parameters. If an Object
contains a String
, it will return the length of the String
. If a parameter is a NULL Object
reference, the function returns zero. If an Object
contains any other type, an exception is thrown.
See also
Applies to
.NET 9 en andere versies
Product | Versies |
---|---|
.NET | Core 3.0, Core 3.1, 5, 6, 7, 8, 9 |
.NET Framework | 1.1, 2.0, 3.0, 3.5, 4.0, 4.5, 4.5.1, 4.5.2, 4.6, 4.6.1, 4.6.2, 4.7, 4.7.1, 4.7.2, 4.8, 4.8.1 |
- Source:
- Strings.vb
- Source:
- Strings.vb
- Source:
- Strings.vb
Returns an integer containing either the number of characters in a string or the nominal number of bytes required to store a variable.
public:
static int Len(short Expression);
public static int Len (short Expression);
static member Len : int16 -> int
Public Function Len (Expression As Short) As Integer
Parameters
- Expression
- Int16
Any valid String
expression or variable name. If Expression
is of type Object
, the Len
function returns the size as it will be written to the file by the FilePut
function.
Returns
An integer containing either the number of characters in a string or the nominal number of bytes required to store a variable.
Examples
This example uses Len
to return the number of characters in a string.
' Initializes variable.
Dim testString As String = "Hello World"
' Returns 11.
Dim testLen As Integer = Len(testString)
Remarks
With user-defined types and Object
variables, the Len
function returns the size as it will be written to the file by the FilePut
function. If an Object
contains a String
, it will return the length of the string. If an Object
contains any other type, it will return the size of the object as it will be written to the file by the FilePut
function.
The VBFixedString
attribute can be applied to string fields in objects to indicate the size of the string, in bytes, when written to disk. The Len
function uses the VBFixedString
attribute, if available, when determining the size of Object
variables.
Notitie
The Len
function may not be able to determine the actual number of storage bytes required when used with variable-length strings in user-defined data types.
Notitie
The LenB
function in earlier versions of Visual Basic returns the number of bytes in a string rather than characters. It is used primarily for converting strings in double-byte character set (DBCS) applications. All current Visual Basic strings are in Unicode, and LenB
is no longer supported.
Smart Device Developer Notes
The Len
function accepts only String
and Object
variables as parameters. If an Object
contains a String
, it will return the length of the String
. If a parameter is a NULL Object
reference, the function returns zero. If an Object
contains any other type, an exception is thrown.
See also
Applies to
.NET 9 en andere versies
Product | Versies |
---|---|
.NET | Core 3.0, Core 3.1, 5, 6, 7, 8, 9 |
.NET Framework | 1.1, 2.0, 3.0, 3.5, 4.0, 4.5, 4.5.1, 4.5.2, 4.6, 4.6.1, 4.6.2, 4.7, 4.7.1, 4.7.2, 4.8, 4.8.1 |
- Source:
- Strings.vb
- Source:
- Strings.vb
- Source:
- Strings.vb
Returns an integer containing either the number of characters in a string or the nominal number of bytes required to store a variable.
public:
static int Len(double Expression);
public static int Len (double Expression);
static member Len : double -> int
Public Function Len (Expression As Double) As Integer
Parameters
- Expression
- Double
Any valid String
expression or variable name. If Expression
is of type Object
, the Len
function returns the size as it will be written to the file by the FilePut
function.
Returns
An integer containing either the number of characters in a string or the nominal number of bytes required to store a variable.
Examples
This example uses Len
to return the number of characters in a string.
' Initializes variable.
Dim testString As String = "Hello World"
' Returns 11.
Dim testLen As Integer = Len(testString)
Remarks
With user-defined types and Object
variables, the Len
function returns the size as it will be written to the file by the FilePut
function. If an Object
contains a String
, it will return the length of the string. If an Object
contains any other type, it will return the size of the object as it will be written to the file by the FilePut
function.
The VBFixedString
attribute can be applied to string fields in objects to indicate the size of the string, in bytes, when written to disk. The Len
function uses the VBFixedString
attribute, if available, when determining the size of Object
variables.
Notitie
The Len
function may not be able to determine the actual number of storage bytes required when used with variable-length strings in user-defined data types.
Notitie
The LenB
function in earlier versions of Visual Basic returns the number of bytes in a string rather than characters. It is used primarily for converting strings in double-byte character set (DBCS) applications. All current Visual Basic strings are in Unicode, and LenB
is no longer supported.
Smart Device Developer Notes
The Len
function accepts only String
and Object
variables as parameters. If an Object
contains a String
, it will return the length of the String
. If a parameter is a NULL Object
reference, the function returns zero. If an Object
contains any other type, an exception is thrown.
See also
Applies to
.NET 9 en andere versies
Product | Versies |
---|---|
.NET | Core 3.0, Core 3.1, 5, 6, 7, 8, 9 |
.NET Framework | 1.1, 2.0, 3.0, 3.5, 4.0, 4.5, 4.5.1, 4.5.2, 4.6, 4.6.1, 4.6.2, 4.7, 4.7.1, 4.7.2, 4.8, 4.8.1 |
- Source:
- Strings.vb
- Source:
- Strings.vb
- Source:
- Strings.vb
Returns an integer containing either the number of characters in a string or the nominal number of bytes required to store a variable.
public:
static int Len(System::Decimal Expression);
public static int Len (decimal Expression);
static member Len : decimal -> int
Public Function Len (Expression As Decimal) As Integer
Parameters
- Expression
- Decimal
Any valid String
expression or variable name. If Expression
is of type Object
, the Len
function returns the size as it will be written to the file by the FilePut
function.
Returns
An integer containing either the number of characters in a string or the nominal number of bytes required to store a variable.
Examples
This example uses Len
to return the number of characters in a string.
' Initializes variable.
Dim testString As String = "Hello World"
' Returns 11.
Dim testLen As Integer = Len(testString)
Remarks
With user-defined types and Object
variables, the Len
function returns the size as it will be written to the file by the FilePut
function. If an Object
contains a String
, it will return the length of the string. If an Object
contains any other type, it will return the size of the object as it will be written to the file by the FilePut
function.
The VBFixedString
attribute can be applied to string fields in objects to indicate the size of the string, in bytes, when written to disk. The Len
function uses the VBFixedString
attribute, if available, when determining the size of Object
variables.
Notitie
The Len
function may not be able to determine the actual number of storage bytes required when used with variable-length strings in user-defined data types.
Notitie
The LenB
function in earlier versions of Visual Basic returns the number of bytes in a string rather than characters. It is used primarily for converting strings in double-byte character set (DBCS) applications. All current Visual Basic strings are in Unicode, and LenB
is no longer supported.
Smart Device Developer Notes
The Len
function accepts only String
and Object
variables as parameters. If an Object
contains a String
, it will return the length of the String
. If a parameter is a NULL Object
reference, the function returns zero. If an Object
contains any other type, an exception is thrown.
See also
Applies to
.NET 9 en andere versies
Product | Versies |
---|---|
.NET | Core 3.0, Core 3.1, 5, 6, 7, 8, 9 |
.NET Framework | 1.1, 2.0, 3.0, 3.5, 4.0, 4.5, 4.5.1, 4.5.2, 4.6, 4.6.1, 4.6.2, 4.7, 4.7.1, 4.7.2, 4.8, 4.8.1 |
- Source:
- Strings.vb
- Source:
- Strings.vb
- Source:
- Strings.vb
Returns an integer containing either the number of characters in a string or the nominal number of bytes required to store a variable.
public:
static int Len(DateTime Expression);
public static int Len (DateTime Expression);
static member Len : DateTime -> int
Public Function Len (Expression As DateTime) As Integer
Parameters
- Expression
- DateTime
Any valid String
expression or variable name. If Expression
is of type Object
, the Len
function returns the size as it will be written to the file by the FilePut
function.
Returns
An integer containing either the number of characters in a string or the nominal number of bytes required to store a variable.
Examples
This example uses Len
to return the number of characters in a string.
' Initializes variable.
Dim testString As String = "Hello World"
' Returns 11.
Dim testLen As Integer = Len(testString)
Remarks
With user-defined types and Object
variables, the Len
function returns the size as it will be written to the file by the FilePut
function. If an Object
contains a String
, it will return the length of the string. If an Object
contains any other type, it will return the size of the object as it will be written to the file by the FilePut
function.
The VBFixedString
attribute can be applied to string fields in objects to indicate the size of the string, in bytes, when written to disk. The Len
function uses the VBFixedString
attribute, if available, when determining the size of Object
variables.
Notitie
The Len
function may not be able to determine the actual number of storage bytes required when used with variable-length strings in user-defined data types.
Notitie
The LenB
function in earlier versions of Visual Basic returns the number of bytes in a string rather than characters. It is used primarily for converting strings in double-byte character set (DBCS) applications. All current Visual Basic strings are in Unicode, and LenB
is no longer supported.
Smart Device Developer Notes
The Len
function accepts only String
and Object
variables as parameters. If an Object
contains a String
, it will return the length of the String
. If a parameter is a NULL Object
reference, the function returns zero. If an Object
contains any other type, an exception is thrown.
See also
Applies to
.NET 9 en andere versies
Product | Versies |
---|---|
.NET | Core 3.0, Core 3.1, 5, 6, 7, 8, 9 |
.NET Framework | 1.1, 2.0, 3.0, 3.5, 4.0, 4.5, 4.5.1, 4.5.2, 4.6, 4.6.1, 4.6.2, 4.7, 4.7.1, 4.7.2, 4.8, 4.8.1 |
- Source:
- Strings.vb
- Source:
- Strings.vb
- Source:
- Strings.vb
Returns an integer containing either the number of characters in a string or the nominal number of bytes required to store a variable.
public:
static int Len(char Expression);
public static int Len (char Expression);
static member Len : char -> int
Public Function Len (Expression As Char) As Integer
Parameters
- Expression
- Char
Any valid String
expression or variable name. If Expression
is of type Object
, the Len
function returns the size as it will be written to the file by the FilePut
function.
Returns
An integer containing either the number of characters in a string or the nominal number of bytes required to store a variable.
Examples
This example uses Len
to return the number of characters in a string.
' Initializes variable.
Dim testString As String = "Hello World"
' Returns 11.
Dim testLen As Integer = Len(testString)
Remarks
With user-defined types and Object
variables, the Len
function returns the size as it will be written to the file by the FilePut
function. If an Object
contains a String
, it will return the length of the string. If an Object
contains any other type, it will return the size of the object as it will be written to the file by the FilePut
function.
The VBFixedString
attribute can be applied to string fields in objects to indicate the size of the string, in bytes, when written to disk. The Len
function uses the VBFixedString
attribute, if available, when determining the size of Object
variables.
Notitie
The Len
function may not be able to determine the actual number of storage bytes required when used with variable-length strings in user-defined data types.
Notitie
The LenB
function in earlier versions of Visual Basic returns the number of bytes in a string rather than characters. It is used primarily for converting strings in double-byte character set (DBCS) applications. All current Visual Basic strings are in Unicode, and LenB
is no longer supported.
Smart Device Developer Notes
The Len
function accepts only String
and Object
variables as parameters. If an Object
contains a String
, it will return the length of the String
. If a parameter is a NULL Object
reference, the function returns zero. If an Object
contains any other type, an exception is thrown.
See also
Applies to
.NET 9 en andere versies
Product | Versies |
---|---|
.NET | Core 3.0, Core 3.1, 5, 6, 7, 8, 9 |
.NET Framework | 1.1, 2.0, 3.0, 3.5, 4.0, 4.5, 4.5.1, 4.5.2, 4.6, 4.6.1, 4.6.2, 4.7, 4.7.1, 4.7.2, 4.8, 4.8.1 |
- Source:
- Strings.vb
- Source:
- Strings.vb
- Source:
- Strings.vb
Returns an integer containing either the number of characters in a string or the nominal number of bytes required to store a variable.
public:
static int Len(System::Byte Expression);
public static int Len (byte Expression);
static member Len : byte -> int
Public Function Len (Expression As Byte) As Integer
Parameters
- Expression
- Byte
Any valid String
expression or variable name. If Expression
is of type Object
, the Len
function returns the size as it will be written to the file by the FilePut
function.
Returns
An integer containing either the number of characters in a string or the nominal number of bytes required to store a variable.
Examples
This example uses Len
to return the number of characters in a string.
' Initializes variable.
Dim testString As String = "Hello World"
' Returns 11.
Dim testLen As Integer = Len(testString)
Remarks
With user-defined types and Object
variables, the Len
function returns the size as it will be written to the file by the FilePut
function. If an Object
contains a String
, it will return the length of the string. If an Object
contains any other type, it will return the size of the object as it will be written to the file by the FilePut
function.
The VBFixedString
attribute can be applied to string fields in objects to indicate the size of the string, in bytes, when written to disk. The Len
function uses the VBFixedString
attribute, if available, when determining the size of Object
variables.
Notitie
The Len
function may not be able to determine the actual number of storage bytes required when used with variable-length strings in user-defined data types.
Notitie
The LenB
function in earlier versions of Visual Basic returns the number of bytes in a string rather than characters. It is used primarily for converting strings in double-byte character set (DBCS) applications. All current Visual Basic strings are in Unicode, and LenB
is no longer supported.
Smart Device Developer Notes
The Len
function accepts only String
and Object
variables as parameters. If an Object
contains a String
, it will return the length of the String
. If a parameter is a NULL Object
reference, the function returns zero. If an Object
contains any other type, an exception is thrown.
See also
Applies to
.NET 9 en andere versies
Product | Versies |
---|---|
.NET | Core 3.0, Core 3.1, 5, 6, 7, 8, 9 |
.NET Framework | 1.1, 2.0, 3.0, 3.5, 4.0, 4.5, 4.5.1, 4.5.2, 4.6, 4.6.1, 4.6.2, 4.7, 4.7.1, 4.7.2, 4.8, 4.8.1 |
- Source:
- Strings.vb
- Source:
- Strings.vb
- Source:
- Strings.vb
Returns an integer containing either the number of characters in a string or the nominal number of bytes required to store a variable.
public:
static int Len(bool Expression);
public static int Len (bool Expression);
static member Len : bool -> int
Public Function Len (Expression As Boolean) As Integer
Parameters
- Expression
- Boolean
Any valid String
expression or variable name. If Expression
is of type Object
, the Len
function returns the size as it will be written to the file by the FilePut
function.
Returns
An integer containing either the number of characters in a string or the nominal number of bytes required to store a variable.
Examples
This example uses Len
to return the number of characters in a string.
' Initializes variable.
Dim testString As String = "Hello World"
' Returns 11.
Dim testLen As Integer = Len(testString)
Remarks
With user-defined types and Object
variables, the Len
function returns the size as it will be written to the file by the FilePut
function. If an Object
contains a String
, it will return the length of the string. If an Object
contains any other type, it will return the size of the object as it will be written to the file by the FilePut
function.
The VBFixedString
attribute can be applied to string fields in objects to indicate the size of the string, in bytes, when written to disk. The Len
function uses the VBFixedString
attribute, if available, when determining the size of Object
variables.
Notitie
The Len
function may not be able to determine the actual number of storage bytes required when used with variable-length strings in user-defined data types.
Notitie
The LenB
function in earlier versions of Visual Basic returns the number of bytes in a string rather than characters. It is used primarily for converting strings in double-byte character set (DBCS) applications. All current Visual Basic strings are in Unicode, and LenB
is no longer supported.
Smart Device Developer Notes
The Len
function accepts only String
and Object
variables as parameters. If an Object
contains a String
, it will return the length of the String
. If a parameter is a NULL Object
reference, the function returns zero. If an Object
contains any other type, an exception is thrown.
See also
Applies to
.NET 9 en andere versies
Product | Versies |
---|---|
.NET | Core 3.0, Core 3.1, 5, 6, 7, 8, 9 |
.NET Framework | 1.1, 2.0, 3.0, 3.5, 4.0, 4.5, 4.5.1, 4.5.2, 4.6, 4.6.1, 4.6.2, 4.7, 4.7.1, 4.7.2, 4.8, 4.8.1 |
- Source:
- Strings.vb
- Source:
- Strings.vb
- Source:
- Strings.vb
Returns an integer containing either the number of characters in a string or the nominal number of bytes required to store a variable.
public:
static int Len(int Expression);
public static int Len (int Expression);
static member Len : int -> int
Public Function Len (Expression As Integer) As Integer
Parameters
- Expression
- Int32
Any valid String
expression or variable name. If Expression
is of type Object
, the Len
function returns the size as it will be written to the file by the FilePut
function.
Returns
An integer containing either the number of characters in a string or the nominal number of bytes required to store a variable.
Examples
This example uses Len
to return the number of characters in a string.
' Initializes variable.
Dim testString As String = "Hello World"
' Returns 11.
Dim testLen As Integer = Len(testString)
Remarks
With user-defined types and Object
variables, the Len
function returns the size as it will be written to the file by the FilePut
function. If an Object
contains a String
, it will return the length of the string. If an Object
contains any other type, it will return the size of the object as it will be written to the file by the FilePut
function.
The VBFixedString
attribute can be applied to string fields in objects to indicate the size of the string, in bytes, when written to disk. The Len
function uses the VBFixedString
attribute, if available, when determining the size of Object
variables.
Notitie
The Len
function may not be able to determine the actual number of storage bytes required when used with variable-length strings in user-defined data types.
Notitie
The LenB
function in earlier versions of Visual Basic returns the number of bytes in a string rather than characters. It is used primarily for converting strings in double-byte character set (DBCS) applications. All current Visual Basic strings are in Unicode, and LenB
is no longer supported.
Smart Device Developer Notes
The Len
function accepts only String
and Object
variables as parameters. If an Object
contains a String
, it will return the length of the String
. If a parameter is a NULL Object
reference, the function returns zero. If an Object
contains any other type, an exception is thrown.
See also
Applies to
.NET 9 en andere versies
Product | Versies |
---|---|
.NET | Core 3.0, Core 3.1, 5, 6, 7, 8, 9 |
.NET Framework | 1.1, 2.0, 3.0, 3.5, 4.0, 4.5, 4.5.1, 4.5.2, 4.6, 4.6.1, 4.6.2, 4.7, 4.7.1, 4.7.2, 4.8, 4.8.1 |
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