>>339
ごめんなさい
これを別のTextboxに出力させる方法が分かりません。

Dim counter as Integer
'Create a string array and store the contents of the Lines property.
Dim tempArray() as String
tempArray = textBox1.Lines

'Loop through the array and send the contents of the array to debug window.
For counter = 0 to tempArray.GetUpperBound(0)
System.Diagnostics.Debug.WriteLine( tempArray(counter) )
Next