unrestrict only picture files on a certain local path or network path

Ok;
in other words;  
Allow writing of image files to a specific path only;
sample; to;
c:\my_pictures_only\
or
\\my_pictures_\_network_path_only\


thanks for that link, I'll try to visit now.

sindhuxyz;
I think your links are not relevant for a solution

Does that code, prevents a file from creating if the path is not right?
or
it only looks if the file is created on the right path, but if not?, delete the file?
>>_isoStore.DeleteFile(fileName); ?

it only validates the extension of the file

Ahm, does that validate before a file creation is made? or I guess after?

Man,
I think System.IO.IsolatedStorage can't detect file BEFORE creation.

I have this link, BUT I'm not sure if this is applicable to my needs.
http://www.codeproject.com/KB/files/FileSystemWatcherChaos1.aspx


Example Output that I want;
When user paste an image file<.jpg>  to drive [d]
it will ask or a messagebox appear;
--------------
Creating a file on Drive [d]?, Do you really want to paste the file<.jpg>?  [yes] or [no]
--------------

sedgwick?

this a different requirement from the question u posted, i'll try to help you anyway.
so you need some kind of mechanism to hook copying/moving files to some restrict folder.
check this sample from msdn:
http://msdn.microsoft.com/en-us/library/system.io.filesystemwatcher.filter.aspx

this is exactly what u need, you can detect any copy/move/rename of file to/from your designated folder and popup dialog or whatever u need to do prior the action.

>>to hook copying ?
you meant to hook pasting? or renaming it?


thanks

all of them, if you look at the code the event handler catch all actions done to this folder:
copy file to it, move to it, rename file, rename folder etc.

Ok; I think;
WatcherChangeTypes.Created
is all I need, but do you think before creation of file a prompt message of yes or no is possible?
like;
Example Output that I want;
When user paste an image file<.jpg>  to drive [d]
it will ask or a messagebox appear;
--------------
Creating a file on Drive [d]?, Do you really want to paste the file<.jpg>?  [yes] or [no]
--------------

>>all of them?
Ohm, but I hope BEFORE a file is created, not after.

WatcherChangeTypes.Created is AFTER
WaitForChanged is BEFORE?
I'm really confused.

every time new file (only jpeg files) is created or copied or moved into this folder, a mesage box will popup to ask if you want to perform this action...

public static void Main()
        {
            Run();

        }

        [System.Security.Permissions.PermissionSet(System.Security.Permissions.SecurityAction.Demand, Name = "FullTrust")]
        public static void Run()
        {
            string[] args = System.Environment.GetCommandLineArgs();

            // Create a new FileSystemWatcher and set its properties.
            FileSystemWatcher watcher = new FileSystemWatcher();
            watcher.Path = @"c:\temp";
            /* Watch for changes in LastAccess and LastWrite times, and
               the renaming of files or directories. */
            watcher.NotifyFilter = NotifyFilters.LastAccess | NotifyFilters.LastWrite
               | NotifyFilters.FileName | NotifyFilters.DirectoryName;
            // Only watch text files.
            watcher.Filter = "*.jpeg";

            // Add event handlers.
            watcher.Created += new FileSystemEventHandler(watcher_Created);

            // Begin watching.
            watcher.EnableRaisingEvents = true;

            // Wait for the user to quit the program.
            Console.WriteLine("Press \'q\' to quit the sample.");
            while (Console.Read() != 'q') ;
        }

        static void watcher_Created(object sender, FileSystemEventArgs e)
        {
            if (MessageBox.Show(string.Format("Do you really want to paste the file {0}?", e.FullPath), "", MessageBoxButtons.YesNoCancel, MessageBoxIcon.Question) != DialogResult.Yes)
            {
                File.Delete(e.FullPath);
            }
        }

Select allOpen in new window

change the folder path (currently it's c:\temp) on line 14

Man, I don't have a vs right now, but I'm surprised.

static void watcher_Created(object sender, FileSystemEventArgs e)
        {
            if (MessageBox.Show(string.Format("Do you really want to paste the file {0}?", e.FullPath), "", MessageBoxButtons.YesNoCancel, MessageBoxIcon.Question) != DialogResult.Yes)
            {
                File.Delete(e.FullPath);
            }
        }

Do you really think that will work
?


even if I will assigned the path to < \\sharedTemp\ > or  < d:\ >
?

I'm really surprised with the post, after a lot of searches.



thank you, I've change the points, in-case you didn't noticed.

10x alot man

Ok; I got vs now; What's the alternative of MessageBox.Show?
my framework is 2 only

MessageBoxButtons.is for .net 4

What's my alternative to test the code directly?

>>man?
lol, Sorry, I'm over exited of what you did.

Console.WriteLine or log to a file

Ok; I got it, added reference, windows.forms;

I've noticed this; Why we have to issue a delete command?
>> File.Delete(e.FullPath);


I've noticed also the messagebox prompts AFTER the file was created,  so it doesn't do the job to restrict an image file creation.


I though it was.

sedgwick;
http://msdn.microsoft.com/en-us/library/cc144063%28v=VS.85%29.aspx

That is the solution for folders, but not with files, can you help me in file operations.



thanks

FileWatcher is for files, did u test the code?

Yes, the problem is, it does notify when the file is already created, that's after method.
I'm seeking for a method BEFORE a file is created.
Just like this code output;

Example Output that I want;
When user paste an image file<.jpg>  to drive [d]
it will ask or a messagebox appear;
--------------
Creating a file on Drive [d]?, Do you really want to CONTINUE paste/create the file<.jpg>?  [yes] or [no]
--------------


FileWatcher is also an AFTER creation

that's true, thats why the code has the File.Delete function.

Ok;
it's not preventing a group of image files to be copied.

A file delete solution is not good, for me.

Ok, I would really like to close this post, but I am not really satisfied with the answers.

One last try; for connected question;
How do I list the files currently copied in the clipboard?
by that procedure, I can remove in the list,  a group of image files with an extension of .jpg?

I just need a link to close this; please

thank you

http://msdn.microsoft.com/en-us/library/c2thcsx4.aspx
I have that code, but I'm not sure how to remove a group of image files from the file clipboard.
Can you do the test for me?

I hope by that procedure, I can remove in the list,  a group of image files with an extension of .jpg

So, when the user copies a lot of files, including image files like .jpg, when user paste the file?, .jpg image files will not be pasted.

' Demonstrates SetFileDropList, ContainsFileDroList, and GetFileDropList
Public Function SwapClipboardFileDropList(ByVal replacementList _
    As System.Collections.Specialized.StringCollection) _
    As System.Collections.Specialized.StringCollection

    Dim returnList As System.Collections.Specialized.StringCollection _
        = Nothing

    If Clipboard.ContainsFileDropList() Then

        returnList = Clipboard.GetFileDropList()
        Clipboard.SetFileDropList(replacementList)
    End If

    Return returnList

End Function

Select allOpen in new window

to use this function:
RemoveImageFilesFromClipboard(new string[] { ".jpeg", ".jpg", ".bmp", ".tiff" });

public static void RemoveImageFilesFromClipboard(string[] types)
        {
            StringCollection sc = Clipboard.GetFileDropList();
            StringCollection scNew = new StringCollection();
            scNew.AddRange(sc.Cast<string>().Where(n => !types.Contains(Path.GetExtension(n))).ToArray());
            Clipboard.SetFileDropList(scNew);
        }

Select allOpen in new window

Ok;
Great
But I don't know why this line error's
scNew.AddRange(sc.Cast<string>().Where(n => !types.Contains(Path.GetExtension(n))).ToArray());

Error      1      Invalid expression term '>'      D:\My Documents\Visual Studio 2005\Projects\WindowsApplication2\WindowsApplication2\Form1.cs      24      55      WindowsApplication2
Error      2      ) expected      D:\My Documents\Visual Studio 2005\Projects\WindowsApplication2\WindowsApplication2\Form1.cs      24      57      WindowsApplication2
Error      3      ; expected      D:\My Documents\Visual Studio 2005\Projects\WindowsApplication2\WindowsApplication2\Form1.cs      24      94      WindowsApplication2
Error      4      Invalid expression term ')'      D:\My Documents\Visual Studio 2005\Projects\WindowsApplication2\WindowsApplication2\Form1.cs      24      94      WindowsApplication2
Error      5      ; expected      D:\My Documents\Visual Studio 2005\Projects\WindowsApplication2\WindowsApplication2\Form1.cs      24      105      WindowsApplication2
Error      6      Invalid expression term ')'      D:\My Documents\Visual Studio 2005\Projects\WindowsApplication2\WindowsApplication2\Form1.cs      24      105      WindowsApplication2

Ok, if we get this done?,    do I need to make a Timer for this?,   so every time users copy a group of files with image file, they can't paste it.

Oh, StringCollection is not good with .NET 2.0

Ok;
I added;
using System.Collections.Specialized;

But still errors; on;
scNew.AddRange(sc.Cast<string>().Where(n = !types.Contains(Path.GetExtension(n))).ToArray());

lines;...............
Error      1      'System.Collections.Specialized.StringCollection' does not contain a definition for 'Cast'      D:\My Documents\Visual Studio 2005\Projects\WindowsApplication2\WindowsApplication2\Form1.cs      29      31      WindowsApplication2
Error      2      The name 'n' does not exist in the current context      D:\My Documents\Visual Studio 2005\Projects\WindowsApplication2\WindowsApplication2\Form1.cs      29      52      WindowsApplication2
Error      3      'System.Array' does not contain a definition for 'Contains'      D:\My Documents\Visual Studio 2005\Projects\WindowsApplication2\WindowsApplication2\Form1.cs      29      63      WindowsApplication2
Error      4      The name 'Path' does not exist in the current context      D:\My Documents\Visual Studio 2005\Projects\WindowsApplication2\WindowsApplication2\Form1.cs      29      72      WindowsApplication2
Error      5      The name 'n' does not exist in the current context      D:\My Documents\Visual Studio 2005\Projects\WindowsApplication2\WindowsApplication2\Form1.cs      29      90      WindowsApplication2


What's the problem?

Ok, got it working;
BUT, it doesn't follow your function <RemoveImageFilesFromClipboard>

public static void RemoveImageFilesFromClipboard(string[] ListFilePaths)
        {
            StringCollection sc = Clipboard.GetFileDropList();
            StringCollection scNew = new StringCollection();

            //scNew.AddRange(sc.().Where(ListFilePaths = !Types.Contains(System.IO.Path.GetExtension(n))).ToArray());
            //scNew.AddRange(sc.Cast<string>().Where(ListFilePaths = !ListFilePaths.Contains(Path.GetExtension(n))).ToArray());
            //Clipboard.SetFileDropList(scNew);

            foreach (string FileToCopy in sc)
                {
                    /// individually cast, not good using or and or
                    if (FileToCopy.Contains(".jpg")) { }
                    else
                        scNew.Add(FileToCopy);
                }
            scNew.Add("c:\\file.test");
            Clipboard.SetFileDropList(scNew);
        }

        private void button1_Click(object sender, EventArgs e)
        {
            RemoveImageFilesFromClipboard(new string[] { ".gif", ".jpg", ".bmp", ".tiff" });
        }


sedgwick?
Can you correct your code now?  please , so we can close this post.


thank you

C¿m on anh