select file in connection string like filename.xls without specifing full path

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in my windows application i want to fill gridview on page load from excel file,for this
i use conncetion string for specifying excel file location. but when i change my .exe location,i can't get that excel file name, means file not get because of location not found.
so how to specify just name of excel file in connection string and it's full path is detected by ~ sign which we make in property windows settings, is this possible in code(c#)?

select file in connection string like filename.xls without specifing full path like
D:\\myfolder\\filename.xls

Posted 6-Oct-15 0:54am

Member 11922776

Updated 6-Oct-15 0:56am

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E.F. Nijboer · Answer 1 · 2015-10-06T01:07:00

Solution 1

Why not simply use Path.GetFileName("D:\\myfolder\\filename.xls")?
https://msdn.microsoft.com/en-us/library/system.io.path.getfilename%28v=vs.110%29.aspx[^]

Good luck!

Posted 6-Oct-15 1:07am

E.F. Nijboer

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Member 11922776 6-Oct-15 7:18am

if i dont wan't to specify directory name i.e. "D:\... " directly just file name filename.xls @E.F.Nijboer

E.F. Nijboer 7-Oct-15 3:46am

But then the file must be in the same directory as the running program or it must be able to find it in one of the directories in the PATH variable.