Creating GUI for Diskpart

vb.net Code:

Dim p As New Process
        Dim pi As New ProcessStartInfo
        pi.UseShellExecute = False
        pi.RedirectStandardOutput = True
        pi.WorkingDirectory = "C:\windows\system32"
        'this for nt* computers
        pi.FileName = "diskpart.exe"
        p.StartInfo = pi
        p.Start()
        Dim sr As IO.StreamReader = p.StandardOutput
        Dim sb As New System.Text.StringBuilder("list disk")
        Dim input As Integer = sr.Read
        Do Until input = -1
            sb.Append(ChrW(input))
            input = sr.Read
        Loop
        RichTextBox1.Text = (sb.ToString)

This is what I have so far as code. I am trying to create a GUI for the Disk Partition Console. Reason being that if you go to format a hard drive, you may have to use the console if you have to perform an override. I was working on a computer last week where I had to wipe the entire hard drive and it wouldn't let me do so with disk management. So I am trying to create a simple GUI for the diskpart.exe console. I have seen people make simulated console applications. However, with diskpart.exe, its been difficult. There are not a lot of related topics on google or on any forums sites that can help me. I have tried basing it off the way its done with CMD, but have been struggling. I am trying to just get the two programs to communicate I/O and display all the output in a richtextbox. Any tips? this is the code I have managed to come up with. I have had many other codes that all have failed such as:

vb.net Code:

Dim prcDOS As New Process
        Dim siDOS As New ProcessStartInfo
 
        siDOS.FileName = "cmd"
 
        siDOS.UseShellExecute = False
        siDOS.CreateNoWindow = True
        siDOS.RedirectStandardInput = True
        siDOS.RedirectStandardOutput = True
 
        prcDOS.StartInfo = siDOS
        prcDOS.Start()
 
        Dim srInput As StreamWriter = prcDOS.StandardInput
        Dim srOutput As StreamReader = prcDOS.StandardOutput
 
        srInput.WriteLine("diskpart.exe")
 
        srInput.WriteLine("list drive")
 
        srInput.WriteLine("exit")
 
        strResults = srOutput.ReadToEnd
 
 
 
        srInput.Close()
        srOutput.Close()
 
        Invoke(ShowText)

AND

vb.net Code:

Dim p As Process = Process.Start("diskpart.exe")
        'AppActivate(p.MainWindowTitle)
        System.Threading.Thread.Sleep(100)
        My.Computer.Keyboard.SendKeys("list disk", True)
 
        My.Computer.Keyboard.SendKeys("{ENTER}", True)

This last code, I knew it was not a logical idea so I stopped and never even tried finishing that attempt.