How to validate if records is already exist in dataBase or in listview windowsApplication

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good Day can any one teach me how give me a tip how to trace if records is already in the in listview , i currently use listview in Vb.net 2008 Windows Application and i currently use a For Loop that reads all Records in listview to validate if the records is in the listview , but my problem is if records
is in the the listview is already Exist this Records
for Ex:" SAMPLE RECORD" , to "Sample Record"
my validation code not trace this one "Sample Record"
or technically speaking they not trace the similarity of CAPITAL CHARACTER to Normal CHARACTER :( Thanks to all Coders Here :D

Posted 6-Sep-11 14:28pm

PingLocalHost

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Dr.Walt Fair, PE · Answer 1 · 2011-09-06T15:04:00

Solution 1

If your problem is checking equivalent strings without regard to case, then compare both strings converted to upper case.

Posted 6-Sep-11 15:04pm

Dr.Walt Fair, PE

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Philippe Mori 6-Sep-11 21:34pm

Or use a case-insensitive comparison...

Pradeep Shukla · Answer 2 · 2011-09-06T15:14:00

Solution 2

For comparison you do not need to use a For loop, use DataView.RowFilter(string) with the comparison value and use DataView.Count() to check if there is a match or not.

http://msdn.microsoft.com/en-us/library/system.data.dataview.rowfilter.aspx[^]

hope it helps.

Posted 6-Sep-11 15:14pm

Pradeep Shukla