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Home/ Questions/Q 820937
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Editorial Team
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Editorial Team
Asked: May 15, 20262026-05-15T02:33:33+00:00 2026-05-15T02:33:33+00:00

string strI; for (int i = 1; i < 100; i++) strI = i.ToString();

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string strI;   

for (int i = 1; i < 100; i++)
    strI = i.ToString();

in here, if i = 1 then ToString yields "1"

But I want to get "01" or "001"

It looks quite easy, but there’s only article about

datetime.ToString("yyyy-MM-dd")`
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  1. Editorial Team
    Editorial Team
    2026-05-15T02:33:33+00:00Added an answer on May 15, 2026 at 2:33 am
    i.ToString("00")
    

    or

    i.ToString("000")
    

    depending on what you want

    Look at the MSDN article on custom numeric format strings for more options: http://msdn.microsoft.com/en-us/library/0c899ak8(VS.71).aspx

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