JFileChooser Multi file selection problem

I am using jdk 1.4.2 .
I tried enabling multiple file selection using JFileChooser but am not able to do so..
following is the code extract..
JFileChooser chooser = new JFileChooser();
int returnVal = chooser.showOpenDialog(RTLogger.this);
if(returnVal == CougarFileChooser.APPROVE_OPTION)
chooser.setMultiSelectionEnabled(true);
if(chooser.isMultiSelectionEnabled())
System.out.println("multi enabled");//message is displayed
File [ ] files = chooser.getSelectedFiles();
System.out.println("the file length is " + files .length);
//length is zero and not able to select multiple files
}

You have to set the option to allow multiple selections before you call showOpenDialog.

Similar Messages

JfileChooser multiple file selection

hi everyone....
i have an aplication with a Jfile chooser coded like this:
var chooser = new JFileChooser();
chooser.addChoosableFileFilter(
FileFilter {
    override function getDescription() {
      "Video {extensions.toString()}"
    override function accept(file) {
      if (file.isDirectory())
        return true;
      def name = file.getName().toLowerCase();
      for (extension in extensions)
        if (name.endsWith(extension))
          return true;
      return false
chooser.setAcceptAllFileFilterUsed(false);and a image that calls the file chooser like this:
ImageView {//load button
            var image = 0;
            image : bind boton1[image]
            transforms : bind [Transform.translate(0,770),
                               Transform.scale(0.7,0.6),]
            onMouseClicked: function( e ) {
            if (JFileChooser.APPROVE_OPTION == chooser.showOpenDialog(null)) {
                source = chooser.getSelectedFile().toURI().toString(); }
                                          }but now i want set the file chooser for multiple file selections and save those urls in to an array...
i added: //chooser.setMultiSelectionEnabled(true); and tried to save in to an array: insert chooser.getSelectedFiles()toString(); into myarray
but it only delivers unexpected data that can be readed...
please helpme with this one....
Already Thanks...
Edited by: darwinbotlee on 27/02/2010 06:40 PM

Hi, change the insert statement:
var a = for(f in chooser.getSelectedFiles()) {
        f.getName();
insert a into myarray ;

File selection problem

hi,
When client clicks on the button or Browse button(tag is <input type=file..>) Open Dialog box or Window will be opend in that window i want to show the file stored on server side(in particular folder only not all files on the server) for the selection after that i want to take file name(path of the file) selected by client.

http://forum.java.sun.com/thread.jspa?threadID=714720&messageID=4131211#4131211
http://forum.java.sun.com/thread.jspa?threadID=715965&messageID=4136873#4136873
http://forum.java.sun.com/thread.jspa?threadID=717829&messageID=4145029#4145029
http://forum.java.sun.com/thread.jspa?threadID=719743&messageID=4153427#4153427
http://forum.java.sun.com/thread.jspa?threadID=719841&messageID=4153787#4153787
Seeing your other posts it looks like you have no clue. The server and client communicate
through http and are 2 different machines (unless you are debugging). You cannot use java.io.File
in an applet because it runs on the client and you want to list files on the server.
You cannot use <input type=file to list files on the server because it lists files on the client.
As suggested before you can use java.io.File on the SERVLET/JSP to generate html code listing the
files that the client wants to see, or use a database listing location of a file and user rights to it.
And please do not post the same queston so many times, if you don't understand something place a response
to an existing thread.

How to set the the file selection mode of JFileChooser

hi,
i want to set the file selection mode to directories only for JFileChooser class but when i run the code it does not select the folder adn opens the folder instead. i want the user to select a folder from the file system . any ideas?

Sorry, I misunderstood you question. I thought that you already set it to choose Directories and wondered when you can't select them when you double-click.
use JFileChooser.setFileSelectionMode(int). This should solve your problem.
Here is an example:
        JFileChooser jf = new JFileChooser();
        jf.setFileSelectionMode(JFileChooser.DIRECTORIES_ONLY);
        jf.showDialog(this, "Select");
        System.out.println(jf.getSelectedFile());
unformatted
JFileChooser jf = new JFileChooser();
jf.setFileSelectionMode(JFileChooser.DIRECTORIES_ONLY);
jf.showDialog(this, "Select");
System.out.println(jf.getSelectedFile());

Problem with Multi File upload example, help needed

I got the code from the following location.....
http://www.adobe.com/devnet/coldfusion/articles/multifile_upload.html
And I've got it to work to some degree except I cant get the file transfer to work when pressing, Upload.   Below is what my debugger outputs. Any thoughts on how to fix this or even what it means?
At the very bottom of this message is the upload.cfm code.......
Thanks in advance for the help
<html>
<head>
<title>Products - Error</title>
</head>
<body>
<h2>Sorry</h2>
<p>An error occurred when you requested this page.
Please email the Webmaster to report this error.
We will work to correct the problem and apologize
for the inconvenience.</p>
<table border=1>
<tr><td><b>Error Information</b> <br>
Date and time: 12/07/09 22:25:51 <br>
Page: <br>
Remote Address: 67.170.79.241 <br>
HTTP Referer: <br>
Details: ColdFusion cannot determine how to process the tag <CFDOCUMENT>. The tag name may be misspelled.<p>If you are using tags whose names begin with CF but are not ColdFusion tags you should contact Allaire Support. <p>The error occurred while processing an element with a general identifier of (CFDOCUMENT), occupying document position (41:4) to (41:70).<p>The specific sequence of files included or processed is:<code><br><strong>D:\hshome\edejham7\edeweb.com\MultiFileUpload\upload.cfm      </strong></code><br>
<br>
</td></tr></table>
</body>
</html>

<cftry>

    <cffile action="upload"
            filefield="filedata"
            destination="#ExpandPath('\')#MultiFileUpload\uploadedfiles\"
            nameconflict="makeunique"
            accept="application/octet-stream"/>
        
        <cfset acceptedFileExtensions = "jpg,jpeg,gif,png,pdf,flv,txt,doc,rtf"/>
        <cfset filecheck = listFindNoCase(acceptedFileExtensions,File.ServerFileExt)/>

        <cfif filecheck eq false>
            <cffile action="delete" file="#ExpandPath('\')#MultiFileUpload\uploadedfiles\#File.ServerFile#"/>
        </cfif>

        <cfcatch type="any">
            <cfdocument format="PDF" overwrite="yes" filename="errordebug.pdf">
                <cfdump var="#cfcatch#"/>
            </cfdocument>
        </cfcatch>
</cftry>

Just 2 things in my test:
1) I use no accept attribute. Coldfusion is then free to upload any extenstion.
Restricting the type to application/octet-stream may generate errors. Also, it is unnecessary, because we perform a type check anyway.
2) I have used #ExpandPath('.')#\ in place of #ExpandPath('\')#
<cfif isdefined("form.filedata")>
<cftry>
<cffile action="upload"
            filefield="filedata"
            destination="#expandPath('.')#\MultiFileUpload\uploadedfiles\"
            nameconflict="makeunique">
        
        <cfset acceptedFileExtensions = "jpg,jpeg,gif,png,pdf,flv,txt,doc,rtf"/>
        <cfset filecheck = listFindNoCase(acceptedFileExtensions,File.ServerFileExt)/>

        <cfif filecheck eq false>
            <cffile action="delete" file="#ExpandPath('.')#\MultiFileUpload\uploadedfiles\#File.ServerFile#"/>
            <cfoutput>Uploaded file deleted -- unacceptable extension (#ucase(File.ServerFileExt)#)</cfoutput>.<br>
        </cfif>
Upload process done!
        <cfcatch type="any">
            There was an error!
            <cfdocument format="PDF" overwrite="yes" filename="errordebug.pdf">
                <cfdump var="#cfcatch#"/>
            </cfdocument>
        </cfcatch>
</cftry>
<cfelse>
<form method="post" action=<cfoutput>#cgi.script_name#</cfoutput>
        name="uploadForm" enctype="multipart/form-data">
        <input name="filedata" type="file">
        <br>
        <input name="submit" type="submit" value="Upload File">
    </form>
</cfif>

How do i get the path of the file selected for opening in JFileChooser

hi
I need to get the path of the file selected for opening or saving in the JFileChooser dialog box.Is there any method available.if not how do i get that?
Thanks and Regards
Saminathan.

don't know if its the best/only way, but you could use the getSelectedFile() method in JFileChooser which returns a file and then use the getAbsolutePath() file method

Opening the file selected by JFileChooser()...

Hi,
can anyone explain how to open a file selected by using JFileChooser()...
Thanx ..
Regards,
Sangeetha..

ya..how to open a file given a file name??
am new to java programming & plz dont take otherwise if i have asked a nonsense Q.,
anyways, Thanx for sparing ur time & answering..
regards,
Sangeetha..

JFileChooser - show files and directories only select directory

I need a JFileChooser that will display directories and zip files but only allow a directory to be selected.
basically i need to be able to select a certain directory that contains a certain zip file, so to make it easier to find i want the zip files to show up so i can find the correct directory...
I tried...
        JFileChooser jfc = new JFileChooser();
        jfc.setFileSelectionMode(JFileChooser.DIRECTORIES_ONLY);
        jfc.setFileFilter(new FileFilter() {
            public boolean accept(File f) {
                if (f.isDirectory()) {
                    return true;
                else if (f.getName().endsWith(".zip")) {
                    return true;
                return false;
            public String getDescription() {
                return "testing";
        });but that only displays directories in the GUI.
The javadoc for the setFileSelectionMode() says, "Sets the JFileChooser to allow the user to just select files, just select directories, or select both files and directories. The default is JFilesChooser.FILES_ONLY. " ....which makes you think that setting the file selection mode only alters what can be SELECTED...however it alters what is displayed as well.
...any ideas?
thanks

This should display the files of interest provided the filter is tuned to do so, and allow you to select either the file of interest or the folder... If you select the file, then folder it is contained is returned.
JFileChooser chooser = new JFileChooser();
chooser.setCurrentDirectory(new java.io.File("."));
MyFileFilter filter = new MyFileFilter();
chooser.setFileFilter(filter);
chooser.setFileSelectionMode(JFileChooser.FILES_AND_DIRECTORIES);
int returnVal = chooser.showOpenDialog(this);
if (returnVal == JFileChooser.APPROVE_OPTION) {
System.out.println(chooser.getCurrentDirectory());
}

Displaying the path of the file selected by a FileChooser in a TextField

I'm just getting started with Swing. I developed a simple dialog box that has two text fields and two buttons. The objective is to open two files using those two buttons. I used FileChooser to select the files. Now, I want to display the path of the selected files in their corresponding TextFields. I use the following code to do that.
final FileChooser fc1 = new FileChooser();
final FileChooser fc2 = new FileChooser();
final TextField tf1 = new TextField();
final TextField tf2 = new TextField();
private void button1ActionPerformed(ActionEvent evt)
            int returnVal1 = fc1.showOpenDialog(labelPhpFile);
            if (returnVal1 == JFileChooser.APPROVE_OPTION)
                File file1 = fc1.getSelectedFile();
                String fileName1 = file1.getName();
                String filePath1 = file1.getPath();
                tf1.setText(filePath1);
private void button2ActionPerformed(ActionEvent evt)
            int returnVal2 = fc2.showOpenDialog(labelPhpFile);
            if (returnVal2 == JFileChooser.APPROVE_OPTION)
                File file2 = fc2.getSelectedFile();
                String fileName2 = file2.getName();
                String filePath2 = file2.getPath();
                tf2.setText(filePath2);
}The above code works fine only for the first file. Mean the path of the file selected using fc1 is getting displayed in the tf1 TextField. But, the file selected using fc2 is not getting displayed tf2 TextField. Please help me.
Thank you :)

h1. The Ubiquitous Newbie Tips
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* Don't even talk to me until you've:
    (a) [googled it|http://www.google.com.au/] and
    (b) looked it up in [Sun's Java Tutorials|http://java.sun.com/docs/books/tutorial/] and
    (c) read the relevant section of the [API Docs|http://java.sun.com/javase/6/docs/api/index-files/index-1.html] and maybe even
    (d) referred to the JLS (for "advanced" questions).
* [Good questions|http://www.catb.org/~esr/faqs/smart-questions.html#intro] get better Answers. It's a fact. Trust me on this one.
    - Lots of regulars on these forums simply don't read badly written questions. It's just too frustrating.
      - FFS spare us the SMS and L33t speak! Pull your pants up, and get a hair cut!
    - Often you discover your own mistake whilst forming a "Good question".
    - Many of the regulars on these forums will bend over backwards to help with a "Good question",
      especially to a nuggetty problem, because they're interested in the answer.
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Help with add file name problem with Photoshop CS4

Frustrating problem: Help with add file name problem with Photoshop CS4. What happens is this. When I am in PS CS4 or CS3 and run the following script it runs fine. When I am in Bridge and go to tools/photoshop/batch and run the same script it runs until it wants interaction with preference.rulerunits. How do I get it to quit doing this so I can run in batch mode? Any help is appreciated. HLower
Script follows:
// this script is another variation of the script addTimeStamp.js that is installed with PS7
//Check if a document is open
if ( documents.length > 0 )
var originalRulerUnits = preferences.rulerUnits;
preferences.rulerUnits = Units.INCHES;
try
var docRef = activeDocument;
// Create a text layer at the front
var myLayerRef = docRef.artLayers.add();
myLayerRef.kind = LayerKind.TEXT;
myLayerRef.name = "Filename";
var myTextRef = myLayerRef.textItem;
//Set your parameters below this line
//If you wish to show the file extension, change the n to y in the line below, if not use n.
var ShowExtension = "n";
// Insert any text to appear before the filename, such as your name and copyright info between the quotes.
//If you do not want extra text, delete between the quotes (but leave the quotes in).
var TextBefore = "Lower© ";
// Insert any text to appear after the filename between the quotes.
//If you do not want extra text, delete between the quotes (but leave the quotes in).
var TextAfter = " ";
// Set font size in Points
myTextRef.size = 10;
//Set font - use GetFontName.jsx to get exact name
myTextRef.font = "Arial";
//Set text colour in RGB values
var newColor = new SolidColor();
newColor.rgb.red = 0;
newColor.rgb.green = 0;
newColor.rgb.blue = 0;
myTextRef.color = newColor;
// Set the position of the text - percentages from left first, then from top.
myTextRef.position = new Array( 10, 99);
// Set the Blend Mode of the Text Layer. The name must be in CAPITALS - ie change NORMAL to DIFFERENCE.
myLayerRef.blendMode = BlendMode.NORMAL;
// select opacity in percentage
myLayerRef.opacity = 100;
// The following code strips the extension and writes tha text layer. fname = file name only
di=(docRef.name).indexOf(".");
fname = (docRef.name).substr(0, di);
//use extension if set
if ( ShowExtension == "y" )
fname = docRef.name
myTextRef.contents = TextBefore + " " + fname + " " + TextAfter;
catch( e )
// An error occurred. Restore ruler units, then propagate the error back
// to the user
preferences.rulerUnits = originalRulerUnits;
throw e;
// Everything went Ok. Restore ruler units
preferences.rulerUnits = originalRulerUnits;
else
alert( "You must have a document open to add the filename!" );

you might want to try the scripting forum howard:
http://www.adobeforums.com/webx?13@@.ef7f2cb

Close excel programmatically after user cancels file selection

Greetings all. I apologize but I incorrectly posted this question on the wrong board originally so am posting it again here. I have a VI that I wrote with some help from this site that reads in as many user selected Flat Data Files as desired into Excel. The VI opens Excel, places each Flat Data File on one row and ends, allowing the user to manipulate the Excel data as desired. I have tested it without problems with up to 100 files at a time. The VI minimizes Excel at startup so that it will not block the Select File(s) dialogue. MY problem is this: If the user cancels the file selection, it returns an error and leaves Excel open. I understand how to handle the error, but have been unable to make Excel close automatically if the action is canceled. I have tried to invoke the Close without saving node with no luck... probably because I don't understand how to apply it. Ideally, I want to take the error number to a case statement, and if it is anything other than zero (0), meaning no error, I want Excel to close down. This will eventually be an executable so I need to make this right. Can anybody help? I have attached a zip file with the VI's and some sample Flat Data Files.
Thanks
Attachments:
RTS Flat File Data.zip ‏103 KB

If you want anything to run after an error you must clear the error status boolean from the error cluster. To do this use the bundle by name and set the status value to FALSE, take this output cluster into the function you wish to run.
Andrew Alford
Production Test Engineering Technologist
Sustainable Energy Technologies
www.sustainableenergy.com

How can I load the selected XML File (Selected from a Listview) into the correct Textboxes?

Right, so I have a windowsform with lots of Textboxes, where the user can type in Information, and then hit "Save", once its saved it goes into a sortof XML Format
<?xml version="1.0" encoding="utf-8"?>

<Case>
<Person>l<Driver></Driver><License-Holder></License-Holder><Address></Address><Phone></Phone><Date-of-Birth></Date-of-Birth><Registration></Registration>
Like that.
Now, on my Startup Form (The main form) there is a Listview that I gave the name Objectlist1. This list displays ANY file located in a specific folder on my computer. This is also where the Saved files appear.
The list also updates every 5th second so after you save it appears quickly.
Now, the Files are saved using the content or Value of the first Textbox:
Dim XmlWrt As XmlWriter = XmlWriter.Create("C:\Users\USER\Desktop\TESTFOLDER\" + Firsttextbox.Text, settings)
So it appears in the folder and on the list with the value inserted in the first Textbox.
My problem comes when I want to load this back (Or reverse the function if you will)
Where I can go to the Objectlist1/Listview, either doubleclick a file or Mark a file, and hit my button "Retrieve"
I want the Form where you could input all the values to show - which it does
And the information from the XML/File saved to appear where it once was typed or inserted.
Here is an example of the code used to save the values from the Textboxes;
Private Sub Savebutton_Click(sender As Object, e As EventArgs) Handles Savebutton.Click
If IO.File.Exists(Pholderbox.Text) = False Then
Dim settings As New XmlWriterSettings()
settings.Indent = True
Dim XmlWrt As XmlWriter = XmlWriter.Create("C:\Users\USER\Desktop\TESTFOLDER\" + Pholderbox.Text, settings)
With XmlWrt
' Write the Xml declaration.
.WriteStartDocument()
' CLIENT
' Write a comment.
.WriteComment("Database")
' Write the root element.
.WriteStartElement("Case")
' Start our first person.
.WriteStartElement("Person")
.WriteString(Textbox1.Text)
' The person nodes.
.WriteStartElement("Driver")
.WriteString(Textbox2.Text)
.WriteEndElement()
I've tried multiple codesamples but they all give either "XML Not found" or such Overloads.
This is the current code I used when trying to make it work
Private Function ReadSettingsXML(ByVal path As String) As MySettings # On Debug It marks here and tells me it wasn't found.
Dim thisSettingsInfo As New MySettings
If My.Computer.FileSystem.FileExists(Objectlist1.SelectedItems.ToString) Then
Dim settingsInfo = XElement.Load(Objectlist1.SelectedItems.ToString)
If settingsInfo IsNot Nothing Then
For Each mainGroup As XElement In settingsInfo.Elements
If mainGroup.Name = "<Database>" AndAlso mainGroup.HasElements Then
For Each subGroup As XElement In mainGroup.Elements
If subGroup.Name = "<Person>" Then
thisSettingsInfo.Textbox1 = subGroup.Value
ElseIf subGroup.Name = "<Driver>" Then
thisSettingsInfo.Textbox2 = subGroup.Value
ElseIf subGroup.Name = "<Address>" Then
thisSettingsInfo.Textbox3 = subGroup.Value
End If
Next
End If
Next
Else
thisSettingsInfo = Nothing
Throw New Exception("The settings XML file is corrupt and cannot be read.")
End If
Else
thisSettingsInfo = Nothing
Throw New Exception("The settings XML file could not be located.")
End If
Return thisSettingsInfo
End Function
Private Sub LoadXML_Click(sender As Object, e As EventArgs) Handles LoadXML.Click
Dim settings As New MySettings
settings = ReadSettingsXML(Objectlist1.SelectedItems.ToString)
If settings IsNot Nothing Then
Dim sb As New System.Text.StringBuilder
With settings
Caseworker.Textbox1.Text = .Person
Caseworker.Textbox2.Text = .Driver
Caseworker.Textbox3.Text = .Address
End With
End If
End Sub
Also, the "Caseworker" is the form where all the textboxes are located.
Been stuck on this for two working days, so any help is highly appreciated
Codesamples are also highly welcome so I can see what the heck you did and find and answer to my problems.

I found a code that might be close to what I'm looking, but as of this code used here, it looks for a static document that already exist and is located in the code.
See this one here, checks for the XML file, and since I can't link one program to 1 file, when its gonna have and use 100's of files.
If (IO.File.Exists("MyXML.xml")) Then
Same here with the static document.
Dim document As XmlReader = New XmlTextReader("MyXML.xml")
While (document.Read())
Dim type = document.NodeType
'if node type was element
If (type = XmlNodeType.Element) Then
If (document.Name = "FirstName") Then
TextBox1.Text = document.ReadInnerXml.ToString()
End If
If (document.Name = "LastName") Then
TextBox2.Text = document.ReadInnerXml.ToString()
End If
End If
End While
Am I at least close here, people?
Can anyone help with the now critical issue I got?
I basically need to change these two;
If (IO.File.Exists("MyXML.xml")) Then
Same here with the static document.
Dim document As XmlReader = New XmlTextReader("MyXML.xml")
To whatever value, so they read from the file SELECTED in my Listview
Cos the program saves files according to the info inserted in textboxes, so it can have whatever name you can think of, I need the program to "find and load" that file, once its selected, and then once I hit Retrieve or LOAD or whatever button, it
injects the info from the File to the correct Textboxes.
And I think this will work to get the info in the right boxes;
If (document.Name = "FirstName") Then
TextBox1.Text = document.ReadInnerXml.ToString()
End If
If (document.Name = "LastName") Then
TextBox2.Text = document.ReadInnerXml.ToString()
Any good advise? I'm stranded here.

File sharing problems and horror story (nearly)

I use Leopard on a MacBook Pro, a MacBook and a iMac G4 800 MHz (unsupported model).
I have on the iMac and the MacBook Pro many users (the same ont he two machines) and I always use Fast User Switching.
I have had very few problems with Leopard until now; I like it even if there are some glitches or some new features which are not my cup of tea (hierarchical menus missing from the dock, stacks useless when there are many items, FireWall impossibilities (?) to open specific ports, Back to my Mac working on a Lan but not from outside until now, problems with a few apps (Parallels networking erratic), ...
Now about File Sharing.
Let say my main account is user1 (Administrator), and I have another user2 also administrator, plus user3, user4 standard users.
On the iMac I activate File Sharing.
On the MacBookPro, as user1, if I connect to the iMac Server (using afp://IPaddress_of_theiMac/) I do NOT get the dialog
"Enter your user name and password to access file server YYY
Connect to server as Guest or as Registered User"
but I directly get the dialog
"Select the volumes you want to mount on YYY"
From this, if I select user1 it mounts with full read/write permissions which is normal. It appears that I am connected with my Apple account user1&mac.com (same as mentionned in the Account panel of System Preferences).
On the other hand, if I try to connect to the user2 account, I only get limited access although in the File Sharing Preferences, user1/iMac is mentionned with full Read/Write preferences for the Home Folder of user2.
What is very surprising is that if I log on the MacBook Pro as user2, or user 3 or user4, then connect to the iMac, I first get the dialog to enter a user name and a password. This gives me access with the correct full permissions on user1/iMac or user2/iMac using the corresponding user name/password pair; this is the usual behaviour which is missing when trying to connect from user1/MacBook Pro.
Now for the Horror Story!
Trying to understand what was going on with the permissions of the user2/iMac account, I logged in to the iMac as user1, went to the Users folder and from there had a look on the informations about user2 home folder. In the lower part of the pannel, Sharing & Permissions says "You have no access" (which is normal) and this is followed by a table where users and permissions are listed. It seems user1 has Read and Write access in contradiction with the preceding phrase...
Anyway, I tried to modify these authorizations for user2 by clicking on the lock of the Information pannel and entering name and password of the administrator. Didn't go farther than that. By mistake, I hit Command-Delete and user2 was GONE from the list AND NOT ONLY from the list in the Information window! Using Fast User Switching and going to user2, nothing left on the Desktop and NO Home anymore.
In the System Preferences/Accounts panel, user2 was still mentionned.
In the Users folder, no user2 folder anymore.
Using once again Fast User Switching, I logged as user2 and got by magic an all new Home. Nothing left in Documents, Library or other user1 folders. Standard settings for icons, dock, etc.
My first move has been to use a very recent backup to restore everything (Thank you Mike Bombich from Copy Cloner!).
Once everything was back to normal, I had a look at the Trash from user1 and guess what, the Home folder of user2 was there, complete.
So now I am left with two questions
why is it I do not have the same dialogs when connecting from all the accounts although as far as I can see, configurations are the same?
why is it possible, from an Information pannel to delete the account of another user?
Thank you all for comments!

For the file sharing problems, answer is found in
http://docs.info.apple.com/article.html?artnum=306723

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