I dont know if is possible make like you suggestion me. I will try it. If I
obtain the same result, I willa can say at the end that a JComboBox is a
collection.
See you
2010/11/16 Mihai DINCA <mihai.di...@free.fr>
> Hi Freddy
>
> If I understand well, the point 3 resumes can be written just like this:
>
> private void capturarCampoSeleccionado()
> {
> int theIndexNumber = jComboBox1.getSelectedItem()*.getIndice()*;
>
> javax.swing.JOptionPane.showMessageDialog(null, "Datos
> seleccionado: " +
> String.valueOf(theIndexNumber));
> }
>
>
> Hope it helps
> Mihai
>
>
>
> Le 17/11/2010 03:52, Freddy Castelblanco Macias a écrit :
>
> Hi guys
>
> Continuing with this forum, I fix what i Want like this:
>
> 1. I created my clase called clsComboItem with two properties: valueMember
> and displayMember
> 2. With the Data of the result set and using a Collection, I load my combo,
> my object of the class clsComboItem and my Collection like this:
>
> Previously at the global level of the GUI, i declared a Collection of
> type clsComboItem, in this case is a vector:
>
> Vector<clsComboItem> Coleccion = new Vector<clsComboItem>();
>
> while (objConexion.ResultSetSQL.next())
> {
> objC = new clsComboItem();
>
> objC.setIntIndice(objConexion.ResultSetSQL.getInt("Codigo"));
>
> objC.setStrValorMostrar(objConexion.ResultSetSQL.getString("Nombre"));
> Coleccion.add(objC);
> jComboBox1.addItem(objC.getStrValorMostrar());
> }
> when i want get the code of any data for example that in the DB is like
> this:
>
> 1 Sandra
> 2 Freddy
> 3 Ibo
>
> .
> .
> .
> .
> Etc,
>
> 3. i made like this:
>
> private void capturarCampoSeleccionado()
> {
> String strClave;
> int theIndexNumber = 0;
> strClave = String.valueOf(jComboBox1.getSelectedItem());
> for (int i = 0 ; i < Coleccion.size(); i++)
> {
> if(Coleccion.get(i).getStrValorMostrar().equals(strClave))
> {
> theIndexNumber = Coleccion.get(i).getIntIndice();
> break;
> }
> }
> javax.swing.JOptionPane.showMessageDialog(null, "Datos
> seleccionado: " + String.valueOf(theIndexNumber));
> }
> So this was my solution.
>
> I come from .Net, and this is the most similar way for capture data from
> the database like i want,
>
> Any suggestion?? any way for do this more efficient??
>
> 2010/11/7 Mihai DINCA <mihai.di...@free.fr>
>
>> Hi Freddy
>>
>> A JComboBox manages objects not only Strings. It displays the value
>> returned by the "toString()" method in each of the objects, but inside you
>> can do whatever you want.
>>
>> For e.g., define your own "ComboItem" class. For e.g.:
>>
>> public class ComboItem {
>> private int index;
>> private String value;
>>
>> public ComboItem( int i, String v ){
>> index = i; value = v;
>> }
>>
>> @Override
>> public String toString(){
>> return "" + index + " " + value;
>> }
>>
>> public int getIndex(){ return index; }
>> }
>>
>> When you read the database, create a ComboItem for each record in the
>> database then add the ComboItem to your JComboBox. For e.g.:
>>
>> ....
>> JComboBox jcb = ...;
>> ....
>> ResultSet rs = ...;
>> while ( rs.next()){
>> ComboItem ci = new ComboItem( rs.getInteger("INDEXNO"),
>> rs.getString("LABEL");
>> jcb.addItem( ci );
>> }
>> ....
>>
>> If you do this way, the JComboBox will display what "toString()" returns
>> for each of the items. I.e. index, space, value.
>>
>> When the user ends entering the data (including choosing a line in the
>> JComboBox), you can get the object chosen by the user and the index number:
>>
>> ....
>> ComboItem ci = (ComboItem)(jcb.getSelectedItem());
>> int theIndexNumber = ci.getIndex();
>> ....
>>
>> Now, this is only one possible way to do it. Another way is to put all the
>> ComboItem objects into a collection when they are read from the database,
>> then fill the JComboBox based on the elements of the collection (meaning
>> separation between the database access level and the user interface). And so
>> on.
>>
>> Hope it helps
>> Mihai
>>
>>
>>
>>
>>
>> Le 07/11/2010 04:28, Shiv Shankar Prajapati a écrit :
>>
>> Hi,
>> Go through following link, it might help you
>> http://www.javabeginner.com/java-swing/java-jcombobox-class-example
>>
>> Here JComboBox takes string array which we can build at run time in
>> different ways. So fetch all the records and convert it in to String array
>> and then pass it to the JComboBox.
>>
>>
>> On Sat, Nov 6, 2010 at 8:58 AM, Freddy Castelblanco Macias <
>> thelords...@gmail.com> wrote:
>>
>>> Hi people !!!
>>>
>>> Im working in Java with SQLJDBC and plain Files (secuencial,
>>> Indexed ... etc). But ... I have to make a GUI and in one control of
>>> Swing (JComboBox) I want to try to fill this control with information
>>> that i have in my database or with information of my plain file. But i
>>> want in one way:.... For example:
>>>
>>> //this is de actionPerformed of the jCombobox
>>> //so when im evaluating the content on this control i want capture the
>>> value and display in the GUI the information //of this VALUE..
>>>
>>> 1 Coke
>>> 2 Bread
>>> 3 Lents
>>>
>>> The number is the value witch i want work and the words must be
>>> displayed in the GUI
>>>
>>> SO how can i do that???
>>>
>>> Help please !!!!
>>>
>>> Some told me one day, that this I can do whith a Collection, but
>>> How ??
>>>
>>> --
>>> To post to this group, send email to
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>>
>>
>>
>>
>> --
>> With Regards,
>>
>> Shiv Shankar,
>> Persistent System Ltd.
>>
>> --
>> To post to this group, send email to
>> javaprogrammingwithpassion@googlegroups.com
>> To unsubscribe from this group, send email to
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>>
>>
>
>
> --
> Cordiamente,
>
> Freddy Castelblanco Macías
>
>
--
Cordiamente,
Freddy Castelblanco Macías
--
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