LeftDiff Method (TdPeriodTimeWithTimeZone)

The period whose beginning and ending bounds are defined as the beginning bound of the operand and the beginning bound of the operand when the operands overlap.

Syntax

Visual Basic
C#
C++/CLI

'Declaration
 
Public Shared Function LeftDiff( _
   ByVal left As TdPeriodTimeWithTimeZone, _
   ByVal right As TdPeriodTimeWithTimeZone _
) As TdPeriodTimeWithTimeZone

'Usage
 
Dim left As TdPeriodTimeWithTimeZone
Dim right As TdPeriodTimeWithTimeZone
Dim value As TdPeriodTimeWithTimeZone
 
value = TdPeriodTimeWithTimeZone.LeftDiff(left, right)

public static TdPeriodTimeWithTimeZone LeftDiff( 
   TdPeriodTimeWithTimeZone left,
   TdPeriodTimeWithTimeZone right
)

public:
static TdPeriodTimeWithTimeZone LeftDiff( 
   TdPeriodTimeWithTimeZone left,
   TdPeriodTimeWithTimeZone right
)

Parameters

left: The left TdPeriodTimeWithTimeZone operand.
right: The right TdPeriodTimeWithTimeZone operand.

Return Value

A TdPeriodTimeWithTimeZone is returned that includes the portion of the left operand that exists before the beginning of the right operand when the operands overlap.

Remarks

A TdPeriodTimeWithTimeZone.Null is returned under the following scenarios:

The left and right operands do not overlap.
The beginning bound of the left operand is less than the beginning bound of the right operand.
Either the left or right operand is null.

In the following examples the left and right operand are defined as (bL, eL) and (bR, eR), respectively.

Example	Comments
\|-------\|------\|------\| bL bR eL eR \|=======\|	Ldiff = (bL, bR)
\|------\|------\|-----\| bL bR eR eL \|======\|	Ldiff = (bL, bR)
\|-----\|-------\|-----\| bL eL bR eR	Ldiff = TdPeriodTimestampWithTimeZone.Null The left and right operands do not overlap.
\|------\|-----\|------\| bR bL eR eL	Ldiff = TdPeriodTimestampWithTimeZone.Null The beginning bound of the right operand is greater than the beginning bound of the left.
\|--------\|-------\| bL eL bR eR	Ldiff = TdPeriodTimestampWithTimeZone.Null The left and right operands do not overlap.
\|---------\|--------\| bL bR eR eL		Ldiff = TdPeriodTimestampWithTimeZone.Null The beginning bounds of both operands are equal. A period cannot be created whose beginning and ending bounds are equal.

Requirements

Product	Versions	Platforms
.NET	2.1, 3.1, 6	Windows, Linux, MacOS
.NET Framework	4.6.1, 4.6.2, 4.7, 4.7.1, 4.7.2, 4.8	Windows
.NET Standard	2.0	Windows, Linux, MacOS

Reference

TdPeriodTimeWithTimeZone Structure
TdPeriodTimeWithTimeZone Members