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File name validation i.e expression validator

Posted on 2011-02-20
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Last Modified: 2012-05-11
Hi,


I want to write file name file name validation  i .e for Excel file    

FileName.xls  and FileName.xsls  

I am doing for  windows enivorment in C# ..

Can you please  help me  in that...
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Question by:N_Sri
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2 Comments
 
LVL 75

Accepted Solution

by:
käµfm³d   👽 earned 1500 total points
ID: 34938584
Like this?
string extension = System.IO.Path.GetExtension(filename).ToLower();

if (extension == ".xls" || extension == ".xsls")
{
    // Filename valid.
}

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Author Closing Comment

by:N_Sri
ID: 34947173
thankyou
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