Public/Write-LogError.ps1

Function Write-LogError{
    <#
        .SYNOPSIS
            Writes Error to all registerd LoggingChannels in the LoggingChannelList.
        .DESCRIPTION
            The Write-LogError calls the WriteError method on all registerd LoggingChannels in the LoggingChannelList.
 
        .PARAMETER EventId
            Specifies the event identifier. This parameter is required. The maximum allowed value for the EventId parameter is 65535.
 
        .PARAMETER Message
            Specifies the event message. This parameter is required.
 
        .EXAMPLE
            Write-LogError 1 "Some Error you want to log"
    #>

    [CmdletBinding()]
    Param(
        [Parameter(
            Mandatory = $true,
            Position = 1,
            HelpMessage="Specifies the event identifier. (between 0 and 65535)"
        )]
        [ValidateRange(0,65535)]
        [Alias("ID")]
        [Int] $EventId,
        [Parameter(
            Mandatory = $true,
            Position = 2,
            HelpMessage="Specifies the event message."
        )]
        [String] $Message
    )
    Begin {}
    Process {
        if($null -eq (Get-LoggingSource)){
            Write-Warning -Message 'No LoggingSource has been specified.'
        }
        Get-LoggingChannelList | ForEach-Object {
            $_.WriteError((Get-LoggingSource),$EventId,$Message)
        }
    }
    End {}
}