C#

// Lots of neat stuff
myRichTextBox.Focus();
myRichTextBox.Select( start, length ); // start = 42, length = 9 for this example
// Lots more neat stuff

CurrencyManager cm = dataGrid.BindingContext[dataGrid.DataSource] as CurrencyManager;<br />
if(cm != null)<br />
  int count = cm.List.Count; //Total rows in the grid.

int startIndex = 6;
int Length = 4;
string MyString = "thisissomedatablahblahblah";
string SubString = MyString.Substring(startIndex, Length);

string NumberPrettyPrint(int number){
	// Gets a NumberFormatInfo associated with the en-US culture.
	NumberFormatInfo nfi = new CultureInfo( "en-US", false ).NumberFormat;
	nfi.NumberDecimalDigits = 2;

	return number.ToString("N", nfi);
}