Issue with herestring as a job scriptblock

hello,

i need little help.  building one of two herestrings , using scriptblock start job logfiles.  things work fine except when try add clause end of second heresting filter eventid.  variables coming winform.   if don't specify eventid in form first herestring runs fine if specify eventid errors on second herestring.  not sure why throwing mouse event.   my error is

the term 'system.windows.forms.mouseeventargs.eventid' not recognized name...

thanks ..." 

 

$entryfilter = "error, warning, information"

if (($txteventid.text -eq $null) -or ($txteventid.text -eq "")) 
{
$cmd = @"   
get-eventlog -logname application -computername $($txtcname.text) `
-newest $($nupdnlogcount.text) -entrytype $(@($entryfilter)) |
select-object -property timegenerated, entrytype, source, eventid, message
"@
}
else
{
$cmd = @"   
get-eventlog -logname application -computername $($txtcname.text) `
-newest $($nupdnlogcount.text) -entrytype $(@($entryfilter)) |
select-object -property timegenerated, entrytype, source, eventid, message |
{ $_.eventid -eq $($txteventid.text) }         ### <<<<<<<  error line
"@
}

$sb = [scriptblock]::create($cmd)                

start-job -scriptblock $sb  

escape char $:

  { `$_.eventid -eq $($txteventid.text) }  

Windows Server  >  Windows PowerShell