Please help me to find out mismatch filesname from folder after matching with table in C sharp

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Hi,
I have a table whose entry like below:
idname

asp0362
klip632
hlpp632
gtr852a

And i have folder which having file with name as shown below:

asp0362_20150101.txt
hlpp632_20150101.txt
cfgo0602_20150101.txt

Now i want to compare filenames before date like(aapo6321) and idname from table and want to get the name of files which are not in table of DB.

Posted 20-Jan-15 8:11am

Member 11385919

Updated 20-Jan-15 14:01pm

v3

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[no name] 20-Jan-15 14:39pm

Have a look to http://msdn.microsoft.com/en-us/library/system.io.directory(v=vs.110).aspx[^], maybe it will give you an idea.

ZurdoDev 20-Jan-15 14:45pm

Where are you stuck?

1 solution

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Andreas Gieriet · Answer 1 · 2015-01-20T12:15:00

Solution 1

Suggestion: write it in pseudo code and then translate into C#.
E.g.

for each file name in directory do loop
   prefix = file name up to and excluding first "_"
   write prefix if prefix is not contained in Table
end loop

Translating into C# is left as exercise.
Cheers
Andi

Posted 20-Jan-15 12:15pm

Andreas Gieriet

Updated 20-Jan-15 12:17pm

v2

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Member 11385919 21-Jan-15 10:02am

I am new to C# technology.
Can someone provide me complete solution of above question.

Andreas Gieriet 21-Jan-15 10:10am

Homework assignment?
Andi