A Custom Component and the JSP source that get's generated

I'm writing a Custom Component library and I'm at a point where I need to understand how the JSP source that gets generate when my component is dragged from the palete is created and how it relates to the properties I define in the Metadata files.
In particular I have a component that is an extension of the DataTable component and I'd like to control what get's dropped onto the page when the user drags over my component.
Don

See the "Building and Customizing JavaServer Faces Technology Components" technology theme page at http://developers.sun.com/prodtech/javatools/jscreator/reference/themes/buildingjsf/index.html. The Hands-On Examples and "Design-Time API User Guide (pdf)" linked from that page should help.

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Thanks Kelly,
The answers would be the following:
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Hi ,
I am getting confusion in the terminology of words with respect to Custom Components .
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HTH,
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Hi,
Edit your contexts.properties file(which will be under /server-root/https-hostname/config/contexts.properties). And do following changes in that. Restart the server to new changes take effect.
<b>Before change </b>
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For more informations refer the below link.
http://docs.iplanet.com/docs/manuals/enterprise/41/servlets/c-props.htm#530468
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Developer Technical Support
Sun Microsystems
http://www.sun.com/developers/support.

The book who I selected doesn't move to the right in CheckedListBox and the reason is that I can't make an return.his code is good just for first user who I selected

Imprumut = loan
I have 6 tables:
I have one combobox(from where I select utilizatori(users)) and 2 CheckedListBox(Between first box and second box I have 2 buttons:imprumuta(loan) and restituie(return))
This c# code works just for first user: Utilizator, but something's not good. When I add new utilizator(user) and select it, the loan will be add in my SQL DataBase, but... the book who I selected doesn't move to the right in CheckedListBox and the reason
is that I can't make an return
using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Windows.Forms;
using MySql.Data.MySqlClient;
namespace proiect
public partial class Imprumut : Form
MySqlConnection con = new MySqlConnection("DataSource=localhost;UserID=root;database=biblio1");
//stabilim conexiunea
MySqlCommand comUser;//interogarea pe baza careia umplem comboBox
MySqlDataAdapter adaptu;
DataTable userT = new DataTable();
MySqlCommand cmdCarti;//interogarea pe baza careia umplem checkListBox
MySqlDataAdapter adaptCarti;
DataTable CartiTabel = new DataTable();
MySqlCommand cmdCartiImprumutate;//interogarea pe baza careia umplem checkListBox
MySqlDataAdapter adaptCartiImprumutate;
DataTable CartiImprumutateTabel = new DataTable();
public int UserId
get
return Convert.ToInt32(user.SelectedValue.ToString());
void Completez_Combo_User()
try
comUser = new MySqlCommand("SELECT n.userid, CONCAT(n.UserName) as UserN FROM users n left join userroles us on n.userid=us.userid left join roles r on r.roleid=us.roleid WHERE r.roleid='3'",
con);
adaptu = new MySqlDataAdapter(comUser);
adaptu.Fill(userT);
user.Items.Clear();
user.DataSource = userT;
//DataTable din care sunt preluate datele pentru ComboBox user
user.ValueMember = "UserID";
//Valoarea din coloana UserID nu se afiseaza in combobox
user.DisplayMember = "UserN";
//Eelementele afisate in combobox, preluate din concatenarea mai multor coloane
catch (Exception ex)
MessageBox.Show(ex.Message);
void Completez_CheckList_Carti()
try
cmdCarti = new MySqlCommand("SELECT BookID, CONCAT(title, ' ', ISBN,' ',author)as date_carte FROM books WHERE NumberLeft > 0 ORDER BY BookID", con);
adaptCarti = new MySqlDataAdapter(cmdCarti);
adaptCarti.Fill(CartiTabel);
imp.Items.Clear();
//carti.DataSource=null;
imp.DataSource = CartiTabel;
//DataTable din care sunt preluate datele pentru ComboBox carte
imp.ValueMember = "BookID";
//Valoarea din coloana BookID nu se afiseaza in combobox
imp.DisplayMember = "date_carte";
//Eelementele afisate in combobox, preluate din concatenarea mai multor coloane
catch (Exception ex)
MessageBox.Show(ex.Message);
void Completez_CheckList_Cartires()
try
cmdCartiImprumutate = new MySqlCommand(string.Format("SELECT b.BookID, CONCAT(title, ' ', ISBN,' ',author) as date_carte FROM books b inner join userbooks ub on ub.bookid = b.bookid
WHERE ub.userid = {0} ORDER BY BookID", UserId), con);
adaptCartiImprumutate = new MySqlDataAdapter(cmdCartiImprumutate);
adaptCartiImprumutate.Fill(CartiImprumutateTabel);
res.Items.Clear();
//carti.DataSource=null;
res.DataSource = CartiImprumutateTabel;
//DataTable din care sunt preluate datele pentru ComboBox carte
res.ValueMember = "BookID";
//Valoarea din coloana BookID nu se afiseaza in combobox
res.DisplayMember = "date_carte";
//Eelementele afisate in combobox, preluate din concatenarea mai multor coloane
catch (Exception ex)
MessageBox.Show(ex.Message);
void Inregistrez_imprumut_in_BD()
int useridu = Convert.ToInt32(user.SelectedValue.ToString()); //useridu = id book
int bookidi;
try
DateTime azi = System.DateTime.Now; // Data imprumutului
DateTime atunci = termenul.Value; // Data restituirii
MySqlTransaction tranzactie = con.BeginTransaction();
MySqlCommand adaugImpr = new MySqlCommand("INSERT INTO bookshistory(UserID, BookID,BorrowDate) VALUES(@UserID, @BookID, CAST(@BorrowDate as datetime))", con);
MySqlCommand scadCarti = new MySqlCommand("UPDATE books SET numberleft=numberleft-1 WHERE bookid=@bookid", con);
MySqlCommand adauga_userbooks = new MySqlCommand("INSERT INTO userbooks(userId,bookID)VALUES(@userID,@bookID)", con);
adauga_userbooks.Transaction = tranzactie;
adaugImpr.Transaction = tranzactie;
scadCarti.Transaction = tranzactie;
try
foreach (int i in imp.CheckedIndices)
imp.SelectedIndex = i;
bookidi = Convert.ToInt32(imp.SelectedValue.ToString());
MessageBox.Show(bookidi.ToString());
//bookidi va fi id-ul cartea bifata, pe rand din checklistBox
//Inregistrez in tabela imprumut
adaugImpr.Parameters.AddWithValue("@UserID", useridu);
adaugImpr.Parameters.AddWithValue("@BookID", bookidi);
adaugImpr.Parameters.AddWithValue("@BorrowDate", azi);
adaugImpr.ExecuteNonQuery();
adaugImpr.Parameters.Clear();
adauga_userbooks.Parameters.AddWithValue("@userID", useridu);
adauga_userbooks.Parameters.AddWithValue("@bookID", bookidi);
adauga_userbooks.ExecuteNonQuery();
adauga_userbooks.Parameters.Clear();
//Scad numarl de carti disponibile pentru cartea imprumutat
scadCarti.Parameters.AddWithValue("@bookid", bookidi);
scadCarti.ExecuteNonQuery();
scadCarti.Parameters.Clear();
tranzactie.Commit();
catch (Exception ex)
tranzactie.Rollback();
string message = ex.Message;
if (ex.Message.ToLower().Contains("duplicate entry"))
message = "Una dintre carti mai exista deja";
MessageBox.Show(message);
catch (Exception ex)
MessageBox.Show(ex.Message);
void Inregistrez_restituire_in_BD()
int useridu = Convert.ToInt32(user.SelectedValue.ToString()); //useridu = id book
int bookidi;
try
DateTime azi = System.DateTime.Now; // Data imprumutului
DateTime atunci = termenul.Value; // Data restituirii
MySqlTransaction tranzactie = con.BeginTransaction();
MySqlCommand modificIstoric = new MySqlCommand("UPDATE bookshistory SET returndate = @returnDate WHERE userID = @userID AND bookID = @bookID", con);
MySqlCommand adaugCarti = new MySqlCommand("UPDATE books SET numberleft = numberleft + 1 WHERE bookID = @bookID", con);
MySqlCommand sterge_userbooks = new MySqlCommand("DELETE FROM userbooks WHERE userID = @userID AND bookID = @bookID", con);
sterge_userbooks.Transaction = tranzactie;
modificIstoric.Transaction = tranzactie;
adaugCarti.Transaction = tranzactie;
try
foreach (int i in res.CheckedIndices)
res.SelectedIndex = i;
bookidi = Convert.ToInt32(res.SelectedValue.ToString());
MessageBox.Show(bookidi.ToString());
//bookidi va fi id-ul cartea bifata, pe rand din checklistBox
//Inregistrez in tabela imprumut
modificIstoric.Parameters.AddWithValue("@UserID", useridu);
modificIstoric.Parameters.AddWithValue("@BookID", bookidi);
modificIstoric.Parameters.AddWithValue("@returnDate", termenul.Value);
modificIstoric.ExecuteNonQuery();
modificIstoric.Parameters.Clear();
sterge_userbooks.Parameters.AddWithValue("@UserID", useridu);
sterge_userbooks.Parameters.AddWithValue("@BookID", bookidi);
sterge_userbooks.ExecuteNonQuery();
sterge_userbooks.Parameters.Clear();
//Scad numarl de carti disponibile pentru cartea imprumutat
//adaugCarti.Parameters.AddWithValue("@bookid", bookidi);
adaugCarti.Parameters.AddWithValue("@bookid", bookidi);
adaugCarti.ExecuteNonQuery();
adaugCarti.Parameters.Clear();
tranzactie.Commit();
catch (Exception ex)
tranzactie.Rollback();
MessageBox.Show(ex.Message);
catch (Exception ex)
MessageBox.Show(ex.Message);
public Imprumut()
InitializeComponent();
try
con.Open();
catch (Exception ex)
MessageBox.Show(ex.Message);
Completez_Combo_User();
Completez_CheckList_Carti();
Completez_CheckList_Cartires();
//selecteaza_carti_utilizator();
// Initializez termenul din dateTimePicker la data de peste 15 zile fata de data sistemului
termenul.Value = System.DateTime.Now.AddDays(15);
private void imprumuta_Click(object sender, EventArgs e)
Confirmare c = new Confirmare("Confirmati imprumutul?");
DialogResult dr = c.ShowDialog();
if (dr == DialogResult.Yes)
try
Inregistrez_imprumut_in_BD();
MessageBox.Show("Imprumutul a fost inregistrat");
//Dupa inregistrarea imprumutului o parte din carti nu mai sunt disponibile pentru imprumut
//Reincarc in CheckList cu Carti noua lista cu carti ramase dupa imprumut
//Pentru asta "resetez" datele din dataTable cartiT (sursa pentru carti.DataSource)
CartiTabel.Clear();
adaptCarti.Fill(CartiTabel);
CartiImprumutateTabel.Clear();
adaptCartiImprumutate.Fill(CartiImprumutateTabel);
catch (Exception ex)
MessageBox.Show(ex.Message);
if (dr == DialogResult.No)
MessageBox.Show("Imprumutul NU a fost inregistrat");
imp.ClearSelected();
//deselecteaza cartea selectat
foreach (int i in imp.CheckedIndices)
imp.SetItemChecked(i, false);
//debifeaza cartile bifate
//if (imp.CheckedItems.Count > 0)
// //res.Items.Clear();
// foreach (string str in imp.CheckedItems)
// res.Items.Add(str);//adauga in partea cealalta, imprumuta
// while (imp.CheckedItems.Count > 0)
// imp.Items.Remove(imp.CheckedItems[0]);
private void restituie_Click(object sender, EventArgs e)
Confirmare r = new Confirmare("Confirmati restituirea?");
DialogResult dr = r.ShowDialog();
if (dr == DialogResult.Yes)
try
Inregistrez_restituire_in_BD();
MessageBox.Show("Restituirea a fost inregistrata");
//Dupa inregistrarea imprumutului o parte din carti nu mai sunt disponibile pentru imprumut
//Reincarc in CheckList cu Carti noua lista cu carti ramase dupa imprumut
//Pentru asta "resetez" datele din dataTable cartiT (sursa pentru carti.DataSource)
CartiTabel.Clear();
adaptCarti.Fill(CartiTabel);
CartiImprumutateTabel.Clear();
adaptCartiImprumutate.Fill(CartiImprumutateTabel);
catch (Exception ex)
MessageBox.Show(ex.Message);
if (dr == DialogResult.No)
MessageBox.Show("Restituirea NU a fost inregistrata");
res.ClearSelected();
//deselecteaza cartea selectat
foreach (int i in imp.CheckedIndices)
res.SetItemChecked(i, false);
//debifeaza cartile bifate
if (res.CheckedItems.Count > 0)
foreach (string str in res.CheckedItems)
imp.Items.Add(str);
while (res.CheckedItems.Count > 0)
res.Items.Remove(res.CheckedItems[0]);
private void button2_Click(object sender, EventArgs e)
con.Close();
this.Close();
//private void selecteaza_carti_utilizator()
// res.Items.Clear();
// MySqlCommand selectcart = new MySqlCommand("select title from books,userbooks where userbooks.userid='" + user.SelectedValue.ToString() + "' and userbooks.bookid=books.bookid", con);
// MySqlDataReader reader = selectcart.ExecuteReader();
// try
// while(reader.Read())
// res.Items.Add(reader["title"]);
// catch(Exception ex)
// MessageBox.Show(ex.Message);
// finally
// reader.Close();

Hello Vincenzzo,
This issue seems to be a window form UI implemented related issue, for this i suggest that you could ask it to the windows form forum:
http://social.msdn.microsoft.com/Forums/windows/en-US/home?forum=winforms
The current forum you posted to is used to discuss and ask questions about .NET Framework Base Classes (BCL) such as Collections, I/O, Regigistry, Globalization, Reflection.
Regards.
We are trying to better understand customer views on social support experience, so your participation in this interview project would be greatly appreciated if you have time. Thanks for helping make community forums a great place.
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A Custom Component and the JSP source that get's generated

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