How to Omit Specific extension files in Listview control

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Hello friends,

I have a scenario that I have to give the end user the ability to select a folder in treeview and onclick on folder all of the files and folders inside this will be shown in listview except some specific file type with extension .cab, .mp3 etc..

I am able to show all files but unable to omit the specific file types.

Help me to do this....

Thanx in advance..

Posted 12-May-13 23:11pm

abhishekagrwl25

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TanvirRaihan · Answer 1 · 2013-05-12T23:47:00

Solution 1

Hi
I don't know how you are reading the file list from the folder.
But what I can say that before putting the file list in List view, you can check the file
extension. or you can use the search Pattern of System.IO.Directory.GetFiles

Posted 12-May-13 23:47pm

TanvirRaihan

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abhishekagrwl25 13-May-13 5:50am

hi tanvir,

I can use System.IO.Directory.GetFiles to select specific file types but here i want to omit the specific file types. that is the problem. Do you have any solution regarding that..??

TanvirRaihan 13-May-13 6:28am

As far as I know, there is no direct process but you can use lambda expression like:
Directory.GetFiles("path").Where(x => !x.EndsWith(".mp3")).

Or you can read all files and check the file extension in a foreach loop before adding them to ListView.

abhishekagrwl25 13-May-13 6:39am

foreach (FileInfo file in nodeDirInfo.GetFiles())

this is the foreach loop i am using...
how to use your logic with this..??

TanvirRaihan 13-May-13 6:45am

foreach (FileInfo file in nodeDirInfo.GetFiles())
{
if (file.Extension.ToLower() != ".mp3" || file.Extension.ToLower() != ".cab")
{
// Put it to list view.
}
}

abhishekagrwl25 13-May-13 6:49am

but i have to use string array for checking list...because i am dynamically storing values in string array..

abhishekagrwl25 13-May-13 6:54am

i think i have to use nested foreach loop that go through each file extension but cant implement exactly..