/// <summary>
/// Executes a powershell script at the supplied path asynchronously.
/// Output stream data is saved in real time as the script executes.
/// </summary>
/// <param name="obj"></param>
/// <returns></returns>
private async Task ExecutePowershellScriptAsync(object obj)
{
// Disable UI elements
IsBusy = true;
scriptReader.SetArgumentsEnabled(false);
// Add user input to script parameters
powershellExecuter.SetScriptParameters(ScriptVariables);
// Execute script asynchronously
await Task.Run(() =>
{
using (PowerShell psInstance = PowerShell.Create())
{
psInstance.AddCommand(SelectedScriptPath);
int argLength = powershellExecuter.CommandLineArguments.Count;
for (int ii = 0; ii < argLength; ii++)
{
psInstance.AddParameter(powershellExecuter.CommandLineArgumentKeys[ii], powershellExecuter.CommandLineArguments[ii]);
}
PSDataCollection <PSObject> outputCollection = new PSDataCollection <PSObject>();
// Collect output in real time
outputCollection.DataAdded += OutputCollection_DataAdded;
psInstance.Streams.Error.DataAdded += Error_DataAdded;
psInstance.Streams.Progress.DataAdded += Progress_DataAdded;
// Begin powershell execution and continue control
IAsyncResult result = psInstance.BeginInvoke <PSObject, PSObject>(null, outputCollection);
// When wrapping PowerShell instance in a using block, the pipeline will
// close and the script execution will abort. Therefore we must wait for
// the state of the pipeline to equal Completed
while (result.IsCompleted == false)
{
Thread.Sleep(250);
if (CancelScriptExecution)
{
psInstance.Stop();
}
}
}
});
IsBusy = false;
scriptReader.SetArgumentsEnabled(true);
ClearScriptSession();
}
