使用 C# 调用 powershell 脚本 - 在 powershell 中将字符串数组作为参数传递

Question

I am writing C# code to execute a powershell script. The powershell script has two arguments:

1. subscriptionId of type string
2. resourceGroupNames of type string[]

Problem:

1. When running the C# program, the resourceGroupNames that is passed a is not being read by the powershell script.
2. Additionally, when running the C# program, powershell prompts me a message "Do you want to run this script?" Is there anyway to suppress this alert and have the powershell script to run automatically?

Here is my code: Note that chefRepo is the path of the powershell script.

public void DoDeploymentRTM(string chefRepo, string subscriptionId, string[] resourceGroupNames)
        {
            ProcessStartInfo startInfo = new ProcessStartInfo();
            startInfo.FileName = @"powershell.exe";
            startInfo.Arguments = String.Format(@"& '{0}\AzurePowerShellScripts\azureVMStatusFetch.ps1' -subscriptionId {1} -resourceGroupNames {2}", chefRepo, subscriptionId, resourceGroupNames);
            startInfo.Verb = "runas";
            Process process = new Process();
            process.StartInfo = startInfo;
            process.Start();
            process.WaitForExit();
        }

Answer 1

For passing an array as powershell argument you need to separate it's values by commas ie for integers you would pass eg 1,2,3 . For string you need additional quotation marks (in case some items contain space) eg 'first string','second string','third' . In C# you would do this by

string.Join(',', resourceGroupNames.Select(x => "'" + x + "'"))

In order to make this approach work when calling by ProcessStartInfo you need to use powershell option -Command so that the array would be parsed correctly (see more details in question ).

Concerning your second problem use powershell commandline option -ExecutionPolicy UnRestricted

Finally you just need to change your Arguments like this:

startInfo.Arguments = String.Format("-ExecutionPolicy UnRestricted -Command &\"'{0}\\AzurePowerShellScripts\\azureVMStatusFetch.ps1' - subscriptionId {1} -resourceGroupNames {2}\"", chefRepo, subscriptionId, string.Join(',', resourceGroupNames.Select(x => "'" + x + "'")));          

or easier (for C# 7.0 or higher)

startInfo.Arguments = $"-ExecutionPolicy UnRestricted -Command &\"'{chefRepo}\\AzurePowerShellScripts\\azureVMStatusFetch.ps1' - subscriptionId {subscriptionId} -resourceGroupNames {string.Join(',', resourceGroupNames.Select(x => $"'{x}'"))}\"";