C#

[test.csv]
ColNameHeader=True
Format=Delimited(;)
MaxScanRows=0
CharacterSet=ANSI
Col1=someColumnName Memo Width 700
Col2=someOtherColumnName Memo Width 700
Col3="some columnName with spaces" Memo Width 700
Col4="some other Colum with spaces" Memo Width 700

Private Declare Function GetCORSystemDirectory Lib "mscoree.dll" _
  (<runtime.interopservices.marshalas( _<br="" mode="hold" />  System.Runtime.InteropServices.UnmanagedType.LPWStr)> _
  ByVal Buffer As System.Text.StringBuilder, _
  ByVal BufferLength As Integer, ByRef Length As Integer) As Integer

[DllImport("mscoree.dll")]<br />
       static extern int GetCORSystemDirectory(<br />
          [System.Runtime.InteropServices.MarshalAsAttribute(System.Runtime.InteropServices.UnmanagedType.LPStr)] StringBuilder buffer,<br />
          Int32 buffer_length,<br />
          out Int32 length<br />
           );

<br />
System.Text.StringBuilder Path = new System.Text.StringBuilder(1024);<br />
            int Size;<br />
            GetCORSystemDirectory(Path, Path.Capacity, out Size);<br />

[DllImport("mscoree.dll")]
        static extern int GetCORSystemDirectory(
           [System.Runtime.InteropServices.MarshalAsAttribute(System.Runtime.InteropServices.UnmanagedType.LPWStr)] StringBuilder buffer,
           Int32 buffer_length,
           ref Int32 length
            );

// Gets the path to the Framework directory.
            System.Text.StringBuilder Path = new System.Text.StringBuilder(1024);
            int Size = 0;
            GetCORSystemDirectory(Path, Path.Capacity, ref Size);

using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Configuration.Install;
using System.Runtime.InteropServices;
using System.Text;
using System.Diagnostics;

namespace InstallationHelper
{
    [RunInstaller(true)]
    public partial class InstallationHelper : Installer
    {
        [DllImport("mscoree.dll")]
        static extern int GetCORSystemDirectory(
           [System.Runtime.InteropServices.MarshalAsAttribute(System.Runtime.InteropServices.UnmanagedType.LPWStr)] StringBuilder buffer,
           Int32 buffer_length,
           ref Int32 length
            );

        public InstallationHelper()
        {
            InitializeComponent();
        }

        [System.Security.Permissions.SecurityPermission(System.Security.Permissions.SecurityAction.Demand)]
        public override void Install(System.Collections.IDictionary savedState)
        {
            base.Install(savedState);
            string Args = this.Context.Parameters["Args"];

            if (Args == "")
            {
                throw new InstallException("No arguments specified");
            }

            // Gets the path to the Framework directory.
            System.Text.StringBuilder Path = new System.Text.StringBuilder(1024);
            int Size = 0;
            GetCORSystemDirectory(Path, Path.Capacity, ref Size);

            Process P;
            // Quotes the arguments, in case they have a space in them.
            ProcessStartInfo Si = new ProcessStartInfo(Path.ToString() + "ngen.exe", "\"" + Args + "\"");
            Si.WindowStyle = ProcessWindowStyle.Maximized;
            try
            {
                P = Process.Start(Si);
                P.WaitForExit();
            }
            catch (Exception e)
            {
                throw new InstallException(e.Message);
            }
        }


    }
}

RichTextBox text = (RichTextBox)tabControlMain.TabPages[tabControlMain.TabPages.Count - 1].Controls[0];

public RichTextBox[] rtext = new RichTextBox[100];
...
// when adding a new tab and richtext box
rtext[tabControlMain.TabPages.Count - 1] = new RichTextBox();
tabControlMain.TabPages[tabControlMain.TabPages.Count - 1].Controls.Add(rtext[tabControlMain.TabPages.Count-1]);
...                   
// load the file from drive
rtext[tabControlMain.SelectedIndex].LoadFile(dlg.FileName, RichTextBoxStreamType.PlainText);

---

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