C# - Generate A Unique Number Without Database

Dec 10, 2010

How do I generate a unique number in c# without the database? (max 17 digits). EDIT: digits only.

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USE [iBankRecords]
GO
/****** Object: StoredProcedure [dbo].[stp_addPayee] Script Date: 07/05/2010 21:57:07 ******/
SET ANSI_NULLS ON
GO
SET QUOTED_IDENTIFIER ON
GO
ALTER PROC [dbo].[stp_addPayee]
(
@CUSTID char(10),
@PAYEEACCNUM nvarchar(20),
@PAYEEACCTYPE char(10) ,
@PAYEENAME char(20),
@PAYERINITIAL char(20),
)
AS
DECLARE
@ReturnValue int
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BEGIN
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END
ELSE
BEGIN
SET @ReturnValue=0
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May I know how do I have generating a unique ref num and inserting the REF into the above statement?

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If (ViewState("counter") Is Nothing) Then
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