Multiple selection needed in Java webDynpro

In Java webDynpro, i need multiple selection to be performed in a combo or listbox. For that, what is the control that i have to add n what are the properties that i have to change. It is urgent. Pl help me in this.

Hi
You can use the ChaeckBoxGroup UI element for multiple selection.
Kind Regards
Mukesh

Similar Messages

Multiple selection of rows in webdynpro

Hi All,
How can we achieve the multiple selection of rows in a table in webdynpro and delete the same.
If i have a table with 4 rows i have selected 2 rows and i have to delete those 2 rows.
Thanks in Advance,
Bsreddy.

Hi Srinivas,
Steps to make multiple rows selectable in table:
1) Create the selection property of the node that you are binding to the table as o..n
2) Un-check the, "Initialization Lead Selection" checkbox for the node which you are using to bind to the table
3) In the Layout go to the table & specify selection mode as MULTI_NO_LEAD. It is important that you set the selection mode to MULTI_NO_LEAD or else in the end you would be capturing 1 row lesser than the total number of rows the user has selected. This is because 1 of the rows would have the LeadSelection property & our logic wouldn't be reading the data for that row. Check the example code fragment as shown below:
Steps to get the multiple rows selected by the user:
In order to get the multiple rows which were selected by the user you will just have to call the get_selected_elements method of if_wd_context_node. First get the reference of the node which you have used to bind to the table & then call this method on it. Check the example code fragment below:
METHOD get_selected_rows .
DATA: temp TYPE string.
DATA: lr_node TYPE REF TO if_wd_context_node,
            wa_temp TYPE REF TO if_wd_context_element,
            ls_node1 TYPE wd_this->element_node_flighttab,
            lt_node1 TYPE wd_this->elements_node_flighttab.
lr_node = wd_context->get_child_node( name = 'NODE_FLIGHTTAB' ).
" This would now contain the references of all the selected rows
lt_temp = lr_node->get_selected_elements( ).
    LOOP AT lt_temp INTO wa_temp.
" Use the references to get the exact row data
      CALL METHOD wa_temp->get_static_attributes
        IMPORTING
          static_attributes = ls_node1.
      APPEND ls_node1 TO lt_node1.
      CLEAR ls_node1.
    ENDLOOP.
ENDMETHOD.
So now lt_node1 containes information about all the rows which are selected by the user.

How to set billing doc parameter for multiple selection ?????

Hi all,
Output for Billing
VF31, SD70AV3A
i would like to add Multiple selection to the Billing Document parameter. multiple Currently, it would only give data for one of the documents in the selection.
According to me the billing parameter can be changed for multiple selection, need your suggestion for how to proceed with this..
Thx in adv
Megha

VF31 <b>does</b> have multiple selection option for Billing document, at least in my world (4.7).

Multiple selection with F4 help in webdynpro

Hi all,
Is it possible to create F4 value help for a field in webdynpro which will support multiple selection?
If the user selects multiple entries, then a new input field will automatically be inserted. Much like F4 help on BW Web Templates.
Thanks,
Satyajit.

Hi Satyajit,
Here is the link to the tutorial which Pran is talking about
https://www.sdn.sap.com/irj/servlet/prt/portal/prtroot/com.sap.km.cm.docs/library/webas/webdynpro/tutorial on advanced value help and object value selector - 9.htm
and see the link below also which discusses on the listener events
Binding UI elements to Java Listeners
Regards
Rohit

One search help for multiple select-options in webdynpro abap

Hi,
I need a way to use one search help for multiple select-options fields. My scenario is :
I have a table for keeping different organizational units' values of different systems. I have pasted some sample data from this table at the end of this mail. On the screen I want to have 1 select-options filed for werks, and 1 select-options filed for vkorg. (In fact I will have more org. unit fields...) In the beginning of my application the user will select sid.
If the user selects ADS as SID, when he opens search-help for the first org. unit (werks), he will see the records with SID: ADS, VARBL = $WERKS, LANGU = SY-LANGU.
If the user selects AGT as SID, when he opens search-help for the second org. unit (vkorg), he will see the records with SID: AGT, VARBL = $VKORG, LANGU = SY-LANGU.
I have created a search-help taking SIDD, VARBL and LANGU as import parameters; used field mapping and bound this search help to my table. I have created 2 context nodes : org1 and org2 having attributes SID, VARBL, VALUE, LANGU .
I have assigned related SID, VARBL and Langu values to these attributes at runtime as I needed. That way, if I use input field and reference to the related context attributes org1-value and org2-value2 accordingly, search help works well as I want.
However, when I use select-options field , I can not bind the field to the context data. I can give reference only to ddic structure. Is there any way to reference to a context attribute? I searched for this in SDN, but could find nothing.
I think I won't be able to use this way. What do you say?
As I read from forums maybe using OVS help will be suitable for me. But I have to use one search-help for all select-options fields. Do you know how I can determine the active select-options field and pass its name (for instance "werks" ) as parameter to this OVS search help. (Also I'll pass SID and LANGU.)
MY TABLE (ZBYYT080) CONTENTS:
SID     VARBL     VALUE     LANGU     VTEXT
ADS     $WERKS     1     T     Werk 0001
ADS     $WERKS     11     T     OZYAS GIDA URETIM YERI
ADS     $WERKS     5501     T     BOYA GEBZE FABRİKASI
ADS     $WERKS     5502     T     BOYA CIGLI FABRİKASI
AGT     $WERKS     2301     T     KAMLI DAMIZLIK
AGT     $WERKS     9601     T     PANAR DENIZ URETIM YERI
ADS     $VKORG     22     T     AA KİMYASALLAR
ADS     $VKORG     8001     T     İINSAAT BOYALARI
AGT     $VKORG     6500     T     DAMk St.Org
AGT     $VKORG     5400     T     PANAR St.Org.
I wish I'm clear enough..
I will be gald if someone answers me as soon as possible...
Thanks İn advance..
MERAL

Hi,
Your ques is how to refer to a DDIC search help to refer to selection screen parameter ?
Am I right ?
If Yes, then in the interface IF_WD_SELECT_OPTIONS
method ADD_SELECTION_FIELD, ADD_PARAMETER_FIELD etc
have importing param like I_VALUE_HELP_TYPE and I_VALUE_HELP_ID, I_VALUE_HELP_MODE, I_VALUE_HELP_STRUCTURE
etc which may help you to link your create DDIC Search help to selection screen params.
this is just a clue from my side. I haven't tried it myself.
You can go to the where used list of this method and find some sample implementations which use these params.
Hope this helps.
Regards
Manas Dua

Need to create a transaction for multiple select statements?

Hello,
I am a newbie and have a question about database transaction, e.g. whether/not to enclose multiple select statements (and select statements only) into a transaction.
My database is set to transaction isolation level 2: REPEATABLE READ, where dirty read & non-repeatable read are not allowed, only phantom read is allowed.
Now, in my code I have a number of methods that only contain select statements only. Since they are merely select statements, which don't do any modifications to the data, I am not sure if I am supposed to enclose them into a transaction.
However, if I don't put them into a transaction will the transaction isolation level takes into effect automatically when another user is modifying the data that I am reading? In other words, I need to make sure the select statements will never do either dirty read or non-repeatable read. But I am not sure if it is necessary to enclose multiple select statements in a transaction, since I believe putting the select statements into a transaction will put some locks to the data being read which may reduce the concurrency of my application.
Any help/advice would be very much appreciated.
Duane

You might want to try asking this on a forum that specific to your database. I suspect the answer can vary depending on the database and probably requires in depth knowledge of what the database does.

Need documents on webdynpro for java?

hi,
i am working on java,i want to move to webdynpro for java.i need documents on webdynpro for java.

Hi Ram Sai,
welcome to Web dynpro Java .... obviously you will be having a great future in this.....
for material.... its been asked many times in the SDN just search. you will get hundreds of books....
just like below.... these are very few... you will get many more in sdn.... just go and search
The following links will give you introduction to Web Dynpro,Getting Started with Web Dynpro & WebDynpro Benefits
/thread/358673 [original link is broken]
/thread/353819 [original link is broken]
Tutorials and PDFs
Also see:
WEB DYNPRO?
what is webdynpro?
What is Webdynpro?
What is Web Dynpro?
Webdynpro Sample Applications and Tutorials
https://www.sdn.sap.com/irj/sdn/go/portal/prtroot/docs/library/uuid/49f2ea90-0201-0010-ce8e-de18b94aee2d
SAP WebAs Samples And tutorials
https://www.sdn.sap.com/irj/sdn/go/portal/prtroot/docs/webcontent/uuid/7d646a6c-0501-0010-b480-bf47b8673143
Basic Webdynpro tutorials....
http://help.sap.com/saphelp_erp2005/helpdata/en/15/0d4f21c17c8044af4868130e9fea07/frameset.htm
http://help.sap.com/saphelp_nw04/helpdata/en/e9/1fc0bdb1cdd34f9a11d5321eba5ebc/frameset.htm
http://help.sap.com/saphelp_nw2004s/helpdata/en/3a/d08342a7d30d53e10000000a155106/frameset.htm
http://searchsap.techtarget.com/searchSAP/downloads/SAPPRESS.pdf
Go through the following documents for step by step procedure for developing an application in wdjava.
https://www.sdn.sap.com/irj/sdn/go/portal/prtroot/docs/library/uuid/a361a890-0201-0010-c0bc-8f16de527cde
https://www.sdn.sap.com/irj/sdn/go/portal/prtroot/docs/library/uuid/efe7a790-0201-0010-7894-cfd79d02bb7e
the following document will give you some idea of webdynpro concepts
https://www.sdn.sap.com/irj/sdn/go/portal/prtroot/docs/library/uuid/a815cf90-0201-0010-8481-da495d68294c
The following document gives some introduction in nwds
https://www.sdn.sap.com/irj/sdn/go/portal/prtroot/docs/library/uuid/f637ae90-0201-0010-ccab-81f3ec35f85e
the following document will give you some idea of WAS concepts
https://www.sdn.sap.com/irj/sdn/go/portal/prtroot/docs/library/uuid/e1515a37-0301-0010-b2bb-99780cb4cafa
Check the following thread u can get lot of materials,
WeB Dynpro Documents
All Web Dynpro Articles
https://www.sdn.sap.com/irj/sdn/go/portal/prtroot/docs/webcontent/uuid/7082f9fc-070d-2a10-88a2-a82b12cea93c?startindex=221
Refer these linkshttps://www.sdn.sap.com/irj/servlet/prt/portal/prtroot/com.sap.km.cm.docs/library/webas/web%20dynpro%20tutorial%20and%20sample%20applications.faq
Why WebDynpro ?
Why WebDynpro ?
Why webdynpro and not BSP or JSP?
What kind of applications are being developed with Web Dynpro?
http://www.sappro.com/downloads/OptionComparison.pdf
Developing Java Applications using Web Dynpro Configuration Scenario
http://www50.sap.com/businessmaps/8F5B533C4CD24A59B11DE1E9BDD13CF1.htm
Integrating Web Dynpro and SAP NetWeaver Portal Part 1: Creating Web Dynpro-Based Portal Content
http://www.octavia.de/fileadmin/content_bilder/Hauptnavigation/SAP_NetWeaver/WebDynpro/Tutorial_1.pdf
The Structural Concepts of Web Dynpro Components
https://www.sdn.sap.com/irj/servlet/prt/portal/prtroot/docs/library/uuid/a048387a-0901-0010-13ac-87f9eb649381
Web Dynpro:Context Mapping & Model Binding
http://wendtstud1.hpi.uni-potsdam.de/sysmod-seminar/SS2005/presentations/14-Web_Dynpro_dataflow.pdf
Web Dynpro:Getting Involved
https://www.sdn.sap.com/irj/servlet/prt/portal/prtroot/docs/library/uuid/c193252d-0701-0010-f5ae-f10e09a6c87f
Refer the following links also
1.Tutorials & Samples for Web Dynpro Java
2.https://www.sdn.sap.com/irj/sdn/go/portal/prtroot/docs/library/uuid/60e5add3-8349-2a10-9594-bcb7d1b4bd2d
3.http://help.sap.com/saphelp_nw04/helpdata/en/80/c12041aa7df323e10000000a155106/frameset.htm
4.https://www.sdn.sap.com/irj/sdn/go/portal/prtroot/docs/library/uuid/6d599690-0201-0010-12bb-b9ea3ea32d22
5.http://help.sap.com/saphelp_nw70/helpdata/EN/dd/0e2a41b108f523e10000000a155106/frameset.htm
6.What is Web Dynpro? What is the use?
7.Everything you wanted to know about Web Dynpro but were afraid to ask, including...
Elearning Webdynpro For Java
https://www.sdn.sap.com/irj/sdn/ui-elearning
Articles On Webdynpro For Java
https://www.sdn.sap.com/irj/sdn/nw-ui?rid=/webcontent/uuid/4005b711-9f9b-2a10-ebae-a1c7ab7ed39d
Blogs On Webdynpro For Java
https://www.sdn.sap.com/irj/sdn/weblogs?blog=/weblogs/topic/43
Wiki's On Webdynpro For Java
https://www.sdn.sap.com/irj/sdn/wiki?path=/x/iau
Documentation On Webdynpro
https://www.sdn.sap.com/irj/sdn/nw-wdjava
The following links will give you introduction to Web Dynpro:
https://www.sdn.sap.com/irj/sdn/go/portal/prtroot/docs/webcontent/uuid/28113de9-0601-0010-71a3-c87806865f26?rid=/webcontent/uuid/8921447c-0501-0010-07b4-83bd39ffc7be
WebDynpro Benefits
The following link will give you basics of how to build applications in Web Dynpro:
https://www.sdn.sap.com/irj/sdn/go/portal/prtroot/docs/library/uuid/efe7a790-0201-0010-7894-cfd79d02bb7e
Following link is the comprehensive link for numerous tutorials on Web Dynpro from SDN itself:
Tutorials & Samples for Web Dynpro Java
Following are some threads where you can get links to practice examples on Web Dynpro:
/thread/358673 [original link is broken]
/thread/353819 [original link is broken]
Tutorials and PDFs
Also see:
WEB DYNPRO?
what is webdynpro?
With Regards,
RooP KumaR.

Need to create a function to receive binary files from Java WebDynpro

Hey,
I need to recieve files from java Webdynpro and save them as a file on the backend
system. After that, the file will be loaded to the documentum.
In a function module, I only can get the files as a String. Therefore (I think), I need the
binary file as base64 encoded. Otherwise I can´t get it as a string.
Now I need to decode it in the backend, but how? I know, there are HTTP-classes
in newer system, but not in the 4.6C System, I have here.
Any idea, how I can recieve the files in the function module and transfer it as binary
file to the backend system?
If I load a file from the gui with gui_upload, I get the binary file as an internal table
and can transfer it to the backend filesystem now. Maybe I can get the binary file
in this way in the function?
Thank You for Your help!
Arne

http://jakarta.apache.org/commons/net/

Need help to create a new record in mdm using java webdynpro

hi all,
I have to develop an application to create a new record in mdm by using java WebDynpro . Please help me what is the process that i have to follow to do this and provide me if you have any step by step guidance for this.
thanks & regards,
Mahi.

Hi,
The below link will help u to make the application in JAVA webdynpro
The article has code to for creating records.
https://www.sdn.sap.com/irj/sdn/go/portal/prtroot/docs/library/uuid/803e9e80-21f4-2a10-8cbf-bcf6a8060be3
Hope this may help u .
Rgds
Ankit

Help needed with singleSelection and multiple selection in table.

Hi ,
How do i implement the singleSelection and multipleSelection on table rows.
How do i capture the checked rows?
How should the code be written and where should it be written.
I should be capturing the values of the checked rows and pass it to the pl/sql package.
I have a table - in -table so there is a singleselection on the outer table and multiple selection on the Inner table.
Could anyone help me with this.
Thanks,

One solution to most of your questions : Read the advanced table section of Dev guide.
Always go through the dev guide before putting up the issue. Let the forum be for those scenarios which dev guide doesn't covers in much detail.
--Shiv

Need help on inserting multiple selection values into database

Hello every body,
we are developing one small web application in that we have requirement like department is an combobox, services in multiple selection list box, suppose when i select IT as department & some services in multiple listbox on clicking map button selected services should be map with that department .Could u plz help me how i have to do..?
Thanks & Regards,
Anil.

anilmekala.reddy wrote:
Hello every body,
we are developing one small web application in that we have requirement like department is an combobox, services in multiple selection list box, suppose when i select IT as department & some services in multiple listbox on clicking map button selected services should be map with that department .Could u plz help me how i have to do..?
Thanks & Regards,
Anil.if you give more details .... do you know how to use jdbc ??? prepared statement ???
any way if I have understood your question
I will suppose that you have 3 tables Department ,service and Has_service
and I supose that you have already the entry in table department and service
Here is what I would do ...
while(I have something to insert )
insert into Has_service values (department,service )
}

How to select value from list with multiple selections ?

HI,
i have a list with multiple selections where i show email address retrieved from database.
what i want to do is to send the selected email address to the invoiceedit.jsp.
please look at the following code which gives you the better idea.
<td class='smalltext'><select name="email" size="3" multiple="multiple">
   <%
   Connection conn = null;
   Statement stmt = null;
   Statement stmt_contactperson = null;
   Statement stmt_address = null;
   try{
      conn = getREConnection();
       stmt = conn.createStatement();
   ResultSet rs = null;
   rs = stmt.executeQuery("SELECT PROPERTYID, VALUE FROM PROPERTIES WHERE ENTITYID="+ g_strGroupID+" AND NAME = 'invoice_default_email'");
   int numofrows = 0;
   while(rs.next())
           %>
   <option value="<%= rs.getString("VALUE") %>" selected="selected"> <%= rs.getString("VALUE") %> </option>
    <%
       }//end of while
      %>
     </select>
    <a href="invoiceedit.jsp?entityid=<%=g_strGroupID%>&add=1"><font color="#000000">Add</font></a>
     <a href="invoiceedit.jsp?entityid=<%=g_strGroupID%>&email_to="><font color="#000000"> Edit</font></a> </td>thanks

Use a form button instead of a link so that you can send it as a request parameter to the server. In the server side just use HttpServletRequest#getParameterValues() to obtain all values for the given parameter name. If you really need a link rather than a button, then use Javascript to submit the form on click of the link.
That said, your design is bad. Java code belongs in Java classes, not in JSP files. Database access logic belongs in a DAO class. Business and controlling logic belongs in a Servlet class. Only presentation logic belongs in the JSP file. Avoid scriptlets as much as possible and use JSP EL and/or JSTL instead.

Toggling between single and multiple selection in a table

I am working on ADF faces. I need to switch between single and multiple selection in <af:table based on a button I select.
I cannot use switcher or rendered property inside <af:table. Only the first one is rendering the second one is not rendering based on the switch
<f:facet name="selection">
<af:tableSelectMany autoSubmit="true"
rendered="#{treeBean.multipleRows}"/>
</f:facet>
<f:facet name="selection">
<af:tableSelectOne autoSubmit="true"
rendered="#{treeBean.singleRows}"/>
</f:facet>
When I use inside the switcher, it doesn't like the parent.
Any ideas would be greatly appreciated.
Thanks,
Vijay.

I have probably misunderstood what your issue is. I do not know what your version of ADF faces is. Here is some sample code working with my version. Please check if your jdev has "rowSelection" attribute. If it has, please try my sampe code
<jsp:root xmlns:jsp="http://java.sun.com/JSP/Page" version="1.2"
xmlns:f="http://java.sun.com/jsf/core"
xmlns:h="http://java.sun.com/jsf/html"
xmlns:afh="http://xmlns.oracle.com/adf/faces/html"
xmlns:af="http://xmlns.oracle.com/adf/faces">
<jsp:directive.page contentType="text/html;charset=utf-8"/>
<f:view>
<af:document title="tableSelectMany Demo">
<af:form>
<af:panelGroup layout="vertical">
<af:messages/>
<af:selectOneChoice value="#{sessionScope.tableSelection}"
autoSubmit="true"
id="selType"
label="Selection Type">
<af:selectItem label="Single" value="#{null}"/>
<af:selectItem label="Multiple" value="#{true}"/>
</af:selectOneChoice>
<af:table summary="Periodic table"
binding="#{tableActions.table}"
partialTriggers="selType"
rowSelection="#{sessionScope.tableSelection ? 'multiple' : 'single'}"
value="#{periodicTable.tableData}" var="row" rows="10">
<af:column>
<f:facet name="header">
<af:outputText value="Name"/>
</f:facet>
<af:outputText value="#{row.name}"/>
</af:column>
<af:column>
<f:facet name="header">
<af:outputText value="Symbol"/>
</f:facet>
<af:outputText value="#{row.symbol}"/>
</af:column>
<af:column>
<f:facet name="header">
<af:outputText value="Action Column"/>
</f:facet>
<af:commandButton immediate="true" text="Action"
action="#{row.action}"/>
</af:column>
</af:table>
</af:panelGroup>
</af:form>
</af:document>
</f:view>
</jsp:root>

Multiple Selection dialog restricted to 5 rows

Hi All,
I have defined a select options in my WebDynpro view.
When I try to enter some value using the Multiple Selection dialog (Extensions) it only shows maximum of 5 rows.
If need to enter more data, I just have to press the "insert" button and add new rows.
But is there a way to populate more than 5 rows initially.
Or is there a way to give a "Upload from clipboard" functionality when a user needs to enter more than 5 rows of selection input.
Thanks in advance for your kind help.

hi Thomas,
Thank you so much for your quick response.
But is there a way that I could at least increase the number of visible rows initially?

Multiple selection in JTable

Hi ,
The problem is to select multiple rows and columns in the JTable like that of a excel application and have the focus on the first column of the last row. for example if select cells from ( 1,1 ) to ( 4,4), after selection the focus should be in cell (4,1). i have written a prgram( which is below) which uses listSelection to find out the cells which are selected. i found out the cells which are selected also. but i do not know how to get the focus on that cell. i have attached the code below also.. i want to know whether there is any method which set the focus to the particular cell. Can the problem above can be solved in any other way..or a simpler way..
import javax.swing.*;
import javax.swing.event.*;
import javax.swing.table.*;
class myTable {
public static void main(String a[] ) {
          JFrame myframe = new JFrame();
          JTable jtable = new JTable(10,10);
          jtable.setCellSelectionEnabled(true);
     // add the listener to the table
ListSelectionModel listSelectionModel;
     OSSTableSelectionHandler obj = new OSSTableSelectionHandler(jtable,10,10);
     listSelectionModel = jtable.getSelectionModel();
listSelectionModel.addListSelectionListener(obj);
     myframe.getContentPane().add(jtable);
     myframe.show();
} // end of public static void main
} // end of class of myTable
class OSSTableSelectionHandler implements ListSelectionListener {
               JTable table;
     int row;
               int col;
OSSTableSelectionHandler(JTable tab, int r, int c ) {
     table = tab;
row = r;
          col = c;
public void valueChanged(ListSelectionEvent e) {
ListSelectionModel lsm = (ListSelectionModel)e.getSource();
               int i = 0,j = 0;
int firstIndex = e.getFirstIndex();
int lastIndex = e.getLastIndex();
boolean isAdjusting = e.getValueIsAdjusting();
if (lsm.isSelectionEmpty()) {
System.out.println(" Selection empty ");
} else {
// Find out which indexes are selected.
                    int maxrow = 0 ;
int minIndex = lsm.getMinSelectionIndex();
int maxIndex = lsm.getMaxSelectionIndex();
for ( i = minIndex; i <= maxIndex; i++) {
if (lsm.isSelectedIndex(i)) {
                              if ( maxrow < i )
                                   maxrow = i;
                              for (j = 0;j < col ;j++ )
                                   if ( table.isCellSelected(i,j) )
                                        System.out.println("The selected index is " + i + " " + j);
                         } // end of if
} // end of for
               // after this maxrow contains the last row that has beeb selected
               // this for loop is to find out the first column in the maxrow that is selected
               for (j = 0;j < col ;j ++ )
                    if ( table.isCellSelected(maxrow,j) )
                              break;
               // set the focus to the column ( maxrow, j )
} // end of else
} // end of fucn value changed
} // end of class OSSTableSelectionHandler

Whic cell is focused depends on where you begin your selection. The cell that you press your mouse first will be the focused one. Here is how I implement the mutiple selection functionality in a JTable as what MS Excel provides. This class is independent of my any other package. your table has to have column headers and a upper left JLabel corner(int the scroll pane containing the table) in order to make this class which I named TableSelectionAdapter function properly. You can revise and imporve it as you need, however.
package petrochina.riped.gui.table.tableadapter;
import java.awt.*;
import java.awt.event.*;
import javax.swing.*;
import javax.swing.table.*;
import javax.swing.event.*;
import java.awt.datatransfer.*;
import java.util.*;
* Enables multiple selection funtionality on <code>JTable</code>s.
* @author Guanglin Du,SEC of Riped, PetroChina,
* [email protected]
* @version 1.0 2002/09/16
public class TableSelectionAdapter extends MouseAdapter {
private String newline = "\n";
private boolean DEBUG = false;
// private boolean DEBUG = true;
private JTable myTable = null;
private boolean shiftKeyDown = false;
private boolean ctrlKeyDown = false;
private int firstSelectedColIndex = -1;
* Constructs with a <code>myTable</code> to simplify its reusability.
* Guanglin Du, 2002/09/19
* @param myTable     a <code>JTable</code>
public TableSelectionAdapter(JTable myTable) {
this.myTable = myTable;
initTableSelection();
* The initTableSelection method: initializes the row/column/cell
* selection functionality of the table.
* Guanglin Du, 2002/09/19
public void initTableSelection() {
getMyTable().setSelectionMode(
          ListSelectionModel.MULTIPLE_INTERVAL_SELECTION);
     //Cell selection
     myTable.addMouseListener(new MouseAdapter() {
     public void mousePressed(MouseEvent e) {
          myTable.setColumnSelectionAllowed(true);
          myTable.setRowSelectionAllowed(true);
     setMyKeyListener(); //shift/control key listener
     //column selection functionality
     JTableHeader myTableHeader = getMyTable().getTableHeader();
     myTableHeader.addMouseListener(new TableHeaderListener());
     //enalbles select-all functionality
     setSelectAllFunction();
* This setSelectAllFunction isto set the select-all functionality
* when the upper left corner label of the JTable is clicked.
* Note: JTable's parent JScrollPane has to be found.
* Guanglin Du, 2002/09/19
public void setSelectAllFunction() {
Container firstParent = getMyTable().getParent();
if (firstParent instanceof JViewport) {
     Container secondParent = firstParent.getParent();
     if (secondParent instanceof JScrollPane) {
     JScrollPane myScrollPane = (JScrollPane)secondParent;
     JLabel myLabel =
          (JLabel)myScrollPane.getCorner(JScrollPane.UPPER_LEFT_CORNER );
     myLabel.addMouseListener(this);
* Detects shift/control key state.
* DGL, 2002/09/18
public void setMyKeyListener() {
     getMyTable().addKeyListener(new KeyAdapter(){
     //keyPressed
     public void keyPressed(KeyEvent e){
          //shift key state
          if(e.isShiftDown())     shiftKeyDown = true;
          //control key state
          if(e.isControlDown()) ctrlKeyDown = true;
//keyReleased
     public void keyReleased(KeyEvent e){
          //shift key state
          if( !e.isShiftDown() ) shiftKeyDown = false;
          //control key state
          if( !e.isControlDown() ) ctrlKeyDown = false;
* Adds the table header listener to enable single/multiple column selection.
* DGL, 2002/09/17
public void setTableHeaderListener() {
     JTableHeader myTableHeader = myTable.getTableHeader();
     myTableHeader.addMouseListener(new TableHeaderListener());
* Returns the <code>myTable</code> property value.
* @return myTable the table that this class handles
public JTable getMyTable() {
return myTable;
* Sets <code>myTable</code> property value of this class.
* @param myTable the table that this class handles
public void setJTable(JTable myTable) {
     this.myTable = myTable;
* Returns the shiftKeyDown property value.
* @return boolean, Guanglin Du, 2002/09/18
public boolean getShiftKeyDown(){
     return shiftKeyDown;
* Return the ctrlKeyDown property value.
* @return boolean, Guanglin Du, 2002/09/18
public boolean getCtrlKeyDown(){
     return ctrlKeyDown;
* This inner class handles the column selection, the same
* behavior as MS Excel.
* Guanglin Du, 2002/09/18
class TableHeaderListener extends MouseAdapter {
public void mousePressed(MouseEvent e) {
     stopLatestCellEditing(); //To save the data being edited
     if(DEBUG) System.out.print("mousePressed on ");
     JTableHeader myColumnHeader = (JTableHeader)e.getSource();
     Point myPoint = e.getPoint();
     int selectedColIndex = myColumnHeader.columnAtPoint(myPoint);
     if(DEBUG) System.out.print("the header of column "
          + selectedColIndex+newline);
     JTable table = myColumnHeader.getTable();
     //The following column selection methods work only if these
     //properties are set this way
     table.setColumnSelectionAllowed(true);
     table.setRowSelectionAllowed(false);
     int myRowCount = table.getRowCount();
     //makes this table focused, so that setMyKeyListener method can
     //listen for shift/control KeyEvent
     table.requestFocus();
//     System.out.println("myRowCount = " + myRowCount);
     if( getShiftKeyDown() ){
     table.clearSelection();
     table.setRowSelectionInterval(0,myRowCount-1);
     table.setColumnSelectionInterval(selectedColIndex,selectedColIndex);
     if(firstSelectedColIndex > -1) {
          table.addColumnSelectionInterval(firstSelectedColIndex, selectedColIndex);
          firstSelectedColIndex = -1;//restore to -1
     } else if( getCtrlKeyDown() ) {
     table.addRowSelectionInterval(0,myRowCount-1);
     table.addColumnSelectionInterval(selectedColIndex,selectedColIndex);
     } else {
     table.clearSelection();
     table.setRowSelectionInterval(0,myRowCount-1);
     table.setColumnSelectionInterval(selectedColIndex,selectedColIndex);
     if(DEBUG) System.out.println("shiftKeyDown = " + shiftKeyDown
          +";"+" ctrlKeyDown = " + ctrlKeyDown);
     //saves the first selected column index
     firstSelectedColIndex = selectedColIndex;
* MouseAdapter implemenation.
* mousePressed: sets the select-all functionality
* when upper left corner label of the table is clicked
* Guanglin Du, 2002/09/18
public void mousePressed(MouseEvent e) {
     if(DEBUG) System.out.println("Select all");
     stopLatestCellEditing();//To save the data in editing
     getMyTable().selectAll();
* Triggers the latest <code>ActionEvent</code> in a table cell to save
* the latest data. Or, the newly input data will not be stored into the table
* model and cannot be retrieved.
public void stopLatestCellEditing() {
int editingRow = getMyTable().getEditingRow();
int editingCol = getMyTable().getEditingColumn();
if (editingRow != -1 && editingCol != -1){
     TableCellEditor cellEditor =
     getMyTable().getCellEditor(editingRow, editingCol);
     cellEditor.stopCellEditing();
Here is how you can use it in your coding(where myTable is a JTable instance you create):
     /* Adds TableSelectionAdapter to enable all kinds of selection action. */
     TableSelectionAdapter tableSelect = new TableSelectionAdapter(myTable);

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