Issue regarding grid view powershell - powershell

Question

I have a text file where server names are mentioned and my script find status of the specific service for the servers and it goes through some condition to start or stop the service. Now I want to display the output on a single grid view with the pc and the status but when i execute my script it gives status output in separate grid for each server .I want everything in single grid view
$computers = get-content C:\Users\Administrator\Desktop\Pow\computer.txt
$Service = "wisvc"
foreach ($computer in $computers) {
$Servicestatus = get-service -name $Service -ComputerName $computer
if ($Servicestatus.Status -eq "Running")
{
$Servicestatus.Stop()
$Servicestatus = get-service -name $Service -ComputerName $computer
$Servicestatus | select-object Name,Status,MachineName | Out-GridView
}
else{
$Servicestatus = get-service -name $Service -ComputerName $computer
$Servicestatus | select-object Name,Status,MachineName | Out-GridView
}
}

Answer 1

As bvbeek stated, your Out-GridView call is inside the loop. When using a foreach statement like you are you'll need to collect the output into a variable. Do not create and array #() and append to it += as suggested since that is unnecessary and can be very slow when dealing with lots of data. Instead you can simply collect the output of the entire loop to a variable then display that with Out-GridView
$computers = get-content C:\Users\Administrator\Desktop\Pow\computer.txt
$Service = "wisvc"
$results = foreach ($computer in $computers){
$Servicestatus = get-service -name $Service -ComputerName $computer
if ($Servicestatus.Status -eq "Running"){
$Servicestatus.Stop()
}
get-service -name $Service -ComputerName $computer | select-object Name,Status,MachineName
}
$results | Out-GridView
Also as you can see there was a lot of duplicated code that served no purpose. You collected the service status again in each branch of the if/else so simply move that outside of the if and eliminate the else clause.
You could also take advantage of the pipeline by changing to a Foreach-Object loop
$computers = get-content C:\Users\Administrator\Desktop\Pow\computer.txt
$Service = "wisvc"
$computers | ForEach {
$Servicestatus = get-service -name $Service -ComputerName $computer
if ($Servicestatus.Status -eq "Running"){
$Servicestatus.Stop()
}
get-service -name $Service -ComputerName $computer | select-object Name,Status,MachineName
} -OutVariable results | Out-GridView
This will achieve the same results as the previous
Collect the output to the variable $results
Display the output to Out-GridView

Answer 2

Here's a workaround to stream the foreach to out-gridview:
$computers = get-content C:\Users\Administrator\Desktop\Pow\computer.txt
$Service = "wisvc"
& {
foreach ($computer in $computers) {
$Servicestatus = get-service -name $Service -ComputerName $computer
if ($Servicestatus.Status -eq "Running") {
$Servicestatus.Stop()
}
$Servicestatus = get-service -name $Service -ComputerName $computer
$Servicestatus | select-object Name,Status,MachineName
}
} | out-gridview

Answer 3

The reason is you are placing the Out-GridView within the foreach-loop.
Please try this:
$computers = Get-Content C:\Users\Administrator\Desktop\Pow\computer.txt
$Service = "wisvc"
$Array = #()
foreach ($computer in $computers)
{
$Servicestatus = Get-Service -name $Service -ComputerName $computer
if ($Servicestatus.Status -eq "Running")
{
$Servicestatus.Stop()
$Servicestatus = Get-Service -name $Service -ComputerName $computer
$Array += $Servicestatus | Select-Object Name, Status, MachineName
}
else
{
$Servicestatus = Get-Service -name $Service -ComputerName $computer
$Array += $Servicestatus | Select-Object Name, Status, MachineName
}
}
$Array | Out-GridView