Help with cross-thread UI functionality.. .

Hi all,

I'm trying to to figure out this stuff, and I've got part of the trick
in the code below, which updates a textbox with data from another
thread. What I'd like to do is put a Pause button on my form which
basically pauses the ReadCsv() method wherever it's at. Obviously, the
Pause button would need to be responsive to the user during while
ReadCsv() is churning. How do I do this?

Thanks for any pointers (heh-heh),

cdj

===============
using System;
using System.Collecti ons.Generic;
using System.Componen tModel;
using System.Data;
using System.Drawing;
using System.Text;
using System.Windows. Forms;
using LumenWorks.Fram ework.IO.Csv;
using System.IO;
using System.Threadin g;

namespace cdjCsvTest
{
public partial class CsvTest : Form
{
public CsvTest()
{
InitializeCompo nent();
}

private void btn_Go_Click(ob ject sender, EventArgs e)
{
Thread t = new Thread(ReadCsv) ;
t.Start();
}

private void ReadCsv()
{

CsvReader cr = new CsvReader(new StreamReader(@" c:
\myFavorite.csv "),true);

int numFields = cr.FieldCount;
string[] headers = cr.GetFieldHead ers();

string updateText = "";
int tooMuch = 200;
int curr = 0;
while (cr.ReadNextRec ord() && curr<tooMuch)
{
for (int i = 0; i < numFields; i++)
{
updateText = headers[i] + ": " + cr[i] +
Environment.New Line;
UpdateText(upda teText);
}

UpdateText(Envi ronment.NewLine );

curr++;
}
}

delegate void UpdateTextDeleg ate(string param);

private void UpdateText(stri ng param)
{
if (this.txt_CsvTe xt.InvokeRequir ed)
{
//We're in the wrong thread, so this gets us to the
right one
this.txt_CsvTex t.Invoke(new
UpdateTextDeleg ate(UpdateText) , new object[] { param });
}
else
{
//Now we're in the right thread.
txt_CsvText.App endText(param);
}
}
}
}