Public/Utils/ConvertTo-Date.ps1
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function ConvertTo-Date { <# .SYNOPSIS Converts a string to a DateTime using specified DateFormat. .DESCRIPTION See https://msdn.microsoft.com/en-us/library/az4se3k1%28v=vs.110%29.aspx for description of format strings. .EXAMPLE $date = ConvertTo-Date -String '2015-03-05' -DateFormat 'yyyy-MM-dd' #> [CmdletBinding()] [OutputType([DateTime])] param( # String to be converted to date. [Parameter(Mandatory = $false)] [string] $String, # Date formats that will be used to parse the string. If not specified, system default will be used. [Parameter(Mandatory = $false)] [string[]] $DateFormat, # If true, exception will be thrown if failed to convert string to date. Otherwise, $null will be returned. [Parameter(Mandatory = $false)] [switch] $ThrowOnFailure ) if (!$String) { return $null } $success = $false if ($DateFormat) { [datetime]$result = New-Object -TypeName DateTime $success = [DateTime]::TryParseExact($String, $DateFormat, [System.Globalization.CultureInfo]::InvariantCulture, [System.Globalization.DateTimeStyles]::None, [ref]$result) } else { [datetime]$result = New-Object -TypeName DateTime $success = [DateTime]::TryParse($String, [ref]$result) } if ($success) { return $result } if ($ThrowOnFailure) { throw "Failed to convert string '$String' to date using formats $DateFormat." } return $null } |