Cannot Convert string to char

Hi everybody, i have created a winform application which run Command Prompt Commands but the problems is  i am getting an error Like "Cannot Convert string to char" in this line " psi = new ProcessStartInfo(TextBox1.Text.Split(" ")(0), TextBox1.Text.Split(" ")(1)); "  Can anybody please help me

 

 

 

using System;

using System.Collections;

using System.Collections.Generic;

using System.Diagnostics;

public partial class Form1:Form

{

private ProcessStartInfo psi;

private Process cmd;

private delegate void InvokeWithString(string text);

private void Button1_Click(System.Object sender, System.EventArgs e)

{

try {

cmd.Kill();

} catch (Exception ex) {

}

TextBox2.Clear();

if (TextBox1.Text.Contains(" ")) {

psi = new ProcessStartInfo(TextBox1.Text.Split(" ")(0), TextBox1.Text.Split(" ")(1));

} else {

psi = new ProcessStartInfo(TextBox1.Text);

}

System.Text.Encoding systemencoding = default(System.Text.Encoding);

System.Text.Encoding.GetEncoding(Globalization.CultureInfo.CurrentUICulture.TextInfo.OEMCodePage);

var _with1 = psi;

_with1.UseShellExecute = false;

_with1.RedirectStandardError = true;

_with1.RedirectStandardOutput = true;

_with1.RedirectStandardInput = true;

_with1.CreateNoWindow = true;

_with1.StandardOutputEncoding = systemencoding;

_with1.StandardErrorEncoding = systemencoding;

cmd = new Process {

StartInfo = psi,

EnableRaisingEvents = true

};

cmd.ErrorDataReceived += Async_Data_Received;

cmd.OutputDataReceived += Async_Data_Received;

cmd.Start();

cmd.BeginOutputReadLine();

cmd.BeginErrorReadLine();

}

private void Async_Data_Received(object sender, DataReceivedEventArgs e)

{

this.Invoke(new InvokeWithString(Sync_Output), e.Data);

}

private void Sync_Output(string text)

{

TextBox2.AppendText(text + Environment.NewLine);

TextBox2.ScrollToCaret();

}

}