Dynamic Drop Down creation using simple data types

Hi all,
I have got a requirement in which i have to create an iView which is going to have 6 drop down values and with in that 1 value is going to have sub values which needs to get displayed in the similar drop down fashion.
I have created a simple data type having enumeration of the 6 values and linked the same to iView with drop down by key which is working successfully. And for the purpose of sub values i have created a similar simple data type with two values and linked the same with a value attribute.
Well, can any one tell me the further process to proceed ?
Thanks in advance ...
Vipin

Vipin,
There are quite some steps to achieve what you need. Since you have both your DropDownByKey elements defined and bound to context elements, it may make sense to keep the Second DropDownByKey element invisible and make it visible only when user selects a specified key from first DropDownByKey. To achieve this, follow these steps.
1. Create an action with a parameter "key" of type string.
2. Bind this action with onSelect event of your First DropDownByKey UI Element.
3. Do mapping of parameter "key" in your wdDoModifyView with following code.
if (firstTime)
         final IWDDropDownByKey dk = (IWDDropDownByKey)view.getElement("DropDownByKey1");
           // Replace DropDownByKey1 with id of your DropDownByKey Element.
         dk.mappingOfOnSelect().addSourceMapping("key", "key");
4. Create a context attribute of type WDVisibility say "DDVisible" and bind to "visible" property of your second DropDownByKey.
5. Set DDVisible to NONE in wdInit().
wdContext.currentContextElement().setDDVisible(WDVisibility.NONE);
6. In onSelect action write this code to make second visible
if(key.equalsIgnoreCase("Two")){
     //Replace "Two" with your required value.
         wdContext.currentContextElement().setDDVisible(WDVisibility.VISIBLE);
       else{
            wdContext.currentContextElement().setDDVisible(WDVisibility.NONE);
This should give the desired results.
Hope this helps.
Vishwas.

Similar Messages

Dynamic Drop-down list - selected value can't be cleared ...

1. check out the following code of a dynamic drop down list using cursor :-
DECLARE
     -- DROP-DOWN LIST OF ALL DEPARTMENTS
     TEMPNUMBER NUMBER(2) := 2 ;
-- Because we've to initialize the list
-- at least with 1 item.
CURSOR C_DEPT IS
     SELECT DEPT_ID FROM DEPARTMENT;
BEGIN
     ABORT_QUERY ;
     CLEAR_LIST('DEPTLIST');
     FOR TEMP IN C_DEPT LOOP
     ADD_LIST_ELEMENT( 'DEPTLIST', TEMPNUMBER, TEMP.DEPT_ID, TEMP.DEPT_ID );
     :SRBLOCK.LST := TEMP.DEPTNO;
     -- prev. line set the newly selected value
     TEMPNUMBER := TEMPNUMBER + 1 ;
     END LOOP;
END;
2. problem is as we've to atleast initialize with one list item... that item can't be cleared with CLEAR_LIST.
3. how can i actually clear that and still use cursor. because i've searched forum for this thing and found all those code not working ... for my project ...
4. quick help needed ...

Hi Omar,
I have solution for you
To populating or refreshing the lists you can use
two procedures:
One of them - generic, which can be used for all types of list
Another is specific which contain a SQL statement to retrieve the data for
particular list.
1. Specific procedure:
PROCEDURE GET_DEPARTMENT_LIST
IS
sql_stat VARCHAR2(32767);
ret_code NUMBER;
BEGIN
-- SQL Statement for Drop-down List
-- (must have two columns for label and value - both VARCHAR2)
sql_stat := ' SELECT DEPARTMENT_NAME,TO_CHAR(DEPT_ID)'
||' FROM SCHEMA.DEPARTMENT';
POPULATE_MY_LIST('BLOCK.DEPARTMENT_LIST',sql_stat,ret_code);
END;
2. Generic procedure:
PROCEDURE POPULATE_MY_LIST
(item_name VARCHAR2,
sql_stat VARCHAR2,
out_code OUT NUMBER)
IS
rg_id RECORDGROUP;
rg_name VARCHAR2(100);
ret_code NUMBER;
item_id ITEM;
BEGIN
     item_id := FIND_ITEM(item_name);
     IF ID_NULL(item_id) THEN
          out_code := -1;
          RETURN;
     END IF;
     --Creating Record Group with Unique Name
     rg_name := 'RG_'||SUBSTR(item_name,INSTR(item_name,'.',1)+1,LENGTH(item_name));
     --Checking Record Group Name for existance
     rg_id := FIND_GROUP(rg_name);
     --If Group does exist - delete it
     IF NOT ID_NULL(rg_id) THEN
          DELETE_GROUP(rg_id);
     END IF;
     --Creating Record Group
     rg_id := CREATE_GROUP_FROM_QUERY(rg_name,sql_stat);
ret_code := POPULATE_GROUP(rg_id);
IF (ret_code <> 0) THEN
     out_code := ret_code;
     RETURN;
END IF;
POPULATE_LIST(item_name,rg_id);
IF NOT FORM_SUCCESS THEN
     out_code := -2;
     RETURN;
ELSE
out_code := 0;
END IF;
DELETE_GROUP(rg_id);
END;
Hope it help.
Dmitry

Cteate 2 Dynamic drop down list

Hi all
i want to create 2 dynamic drop down list using struts and hibernate
i want the first one to display countries name then if i select a country name the second drop down list will automatic display the country cities .
i'm using database here and my tables like that :-
country table
country_id number(3) pk
country_name varchar(50)
city table
city_id number(5) pk
country_id(3) fk references country(country_id)
city_name varchar(50)
thank you in advance

Hi Omar,
I have solution for you
To populating or refreshing the lists you can use
two procedures:
One of them - generic, which can be used for all types of list
Another is specific which contain a SQL statement to retrieve the data for
particular list.
1. Specific procedure:
PROCEDURE GET_DEPARTMENT_LIST
IS
sql_stat VARCHAR2(32767);
ret_code NUMBER;
BEGIN
-- SQL Statement for Drop-down List
-- (must have two columns for label and value - both VARCHAR2)
sql_stat := ' SELECT DEPARTMENT_NAME,TO_CHAR(DEPT_ID)'
||' FROM SCHEMA.DEPARTMENT';
POPULATE_MY_LIST('BLOCK.DEPARTMENT_LIST',sql_stat,ret_code);
END;
2. Generic procedure:
PROCEDURE POPULATE_MY_LIST
(item_name VARCHAR2,
sql_stat VARCHAR2,
out_code OUT NUMBER)
IS
rg_id RECORDGROUP;
rg_name VARCHAR2(100);
ret_code NUMBER;
item_id ITEM;
BEGIN
     item_id := FIND_ITEM(item_name);
     IF ID_NULL(item_id) THEN
          out_code := -1;
          RETURN;
     END IF;
     --Creating Record Group with Unique Name
     rg_name := 'RG_'||SUBSTR(item_name,INSTR(item_name,'.',1)+1,LENGTH(item_name));
     --Checking Record Group Name for existance
     rg_id := FIND_GROUP(rg_name);
     --If Group does exist - delete it
     IF NOT ID_NULL(rg_id) THEN
          DELETE_GROUP(rg_id);
     END IF;
     --Creating Record Group
     rg_id := CREATE_GROUP_FROM_QUERY(rg_name,sql_stat);
ret_code := POPULATE_GROUP(rg_id);
IF (ret_code <> 0) THEN
     out_code := ret_code;
     RETURN;
END IF;
POPULATE_LIST(item_name,rg_id);
IF NOT FORM_SUCCESS THEN
     out_code := -2;
     RETURN;
ELSE
out_code := 0;
END IF;
DELETE_GROUP(rg_id);
END;
Hope it help.
Dmitry

--urgent Can I use table data to create a dynamic drop down menu?

Hi,
I am asked to investigate the possibility of using APEX to create a table driven dynamic drop down menu? The deadline is tomorrow but I have spent quite a bit of time but still have not any clue. Can any one have such experience to point me a way to focus on?
Many thanks.
Jennifer

Thanks you very much for the help Kevin.
Currently my company is using htp.p style to create web app and using the dynamic menu in a similar way as you explained. Now they want to move to Apex and still keep dynamic menu functionality. After reading your response and research I have done I think I can embed it into Apex application by creating the similar table and PL/SQL package and let Apex to call the PL/SQL package when the application is first called. However may I ask you a question about how to call such pl/sql procedure in Apex? .
The current application has the following URL, from which the procedure pkg_main.print_menu is called and html home page with dynamic menu is displayed.
Http://app server:1234/pls/applicationname/pkg_main.print_menu?p_new_window=N
BUT what about the Apex? The Apex URL format is like the following, where 11563 and 1 is application id and page number. Assume that 1 is home page, but HOW the procedure is called, from WHERE?
http://apex.oracle.com/pls/apex/f?p=11563:1:3397731373043366363
Jennifer

How to populate data from dynamic drop down list to the text field

Hi,
I tried to populate data from dynamic drop down list to city field. I would like to concat data from drop down list.When selecting add button to add the item and select item from drop down list, data should be displayed in the text field. However, Please help. I spent alot of time to make it works I am not successful.
Please see the link below.
https://acrobat.com/#d=SCPS0eVi6yz13ENV0cnUdw
Thanks for your help
Cindy

Hi Rosalin,
Loop the hidden table, get the values and populate drop down in each iteration.
DropDownList1.addItem("Text","Value");
You can use one more solution for this scenario. If it is a matter of 2,3 dropdowns, put three dropDowns in the form layout and give seperate static data binding to them. At run time make the dropDowns hide/visible as per the requirement.
Hope this helps.
Thanks & Regards,
Sanoosh

Filling dynamic drop down in adobe interactive form( webdynpro ABAP)

HI all,
Im new in Webdynpro ABAP, my requirement is to fill drop down list in adobe interactive form. i created adobe form and its working fine.
I Created context like ROOT(cardinality 1:1)->DATANODE cardinality 0:n. This context is for drop down and in wddoinit i did like this.
IN WDDOINIT ,
DATA lo_nd_root TYPE REF TO if_wd_context_node.
DATA lo_nd_datanode TYPE REF TO if_wd_context_node.
DATA lo_el_datanode TYPE REF TO if_wd_context_element.
DATA ls_datanode TYPE wd_this->elements_datanode.
navigate from <CONTEXT> to <ROOT> via lead selection
lo_nd_root = wd_context->get_child_node( name = wd_this->wdctx_root ).
navigate from <ROOT> to <DATANODE> via lead selection
lo_nd_datanode = lo_nd_root->get_child_node( name = wd_this->wdctx_datanode ).
get element via lead selection
lo_el_datanode = lo_nd_datanode->get_element( ).
ls_datanode[] = lt_dna_value[].
CALL METHOD lo_nd_datanode->bind_table
EXPORTING
    new_items            = ls_datanode
    set_initial_elements = ABAP_TRUE.
   index                =
while executing i'm getting this error ": WebDynpro Exception: ADS: com.adobe.ProcessingException: No output was generated while rendering: Stream for: PDFOut.(200,101). " . can u please tell me how to bind value for drop down.
I created sample table in same form and i binded same value to table, that time its executing fine.
can u please tell me solution for this Scenario.
Thanks
Hemachandran.
Edited by: hemachandran R on Sep 12, 2008 2:27 PM

hi,
My requirement, is to use dynamic drop down in dynamic table. I am using webdynpro abap.
i populated the value in drop down.
Its working fine but the problem is how to fill the default value in drop down. because i want to bind the default value which im getting specify value from the table.because each row
im getting different values, like first row
CAR
, that CAR want to fill as a default value in drop down and second row as
BIKE
that BIKE want to fill as default value in drop down ( example drop down contain   car , bike , cycle).
In adobe form i binded like this
$record.DATANODE.DATA[*].DNA_RATING
i dont know whether this one is correct or wrong .
im getting default value as empty.
please give me some solution how to do this.its very urgent
thanks
hemachandran.

Dynamic drop down list in Adobe forms

I have created a drop down list using enumerated drop down list from webdynpro native tab and binded in the object palette by giving $record.sap-vhlist.DESCR\.DATA\.FIELD.item[]* in the list items dynamically.DESCR is the field in the internal table into which i fetched data from the database table .I have written this code in a BADI.I dont know whether my form's display type is activex or native? I am not getting any values in the drop down list.can anybody please tell me what might be missing and how should i know whether my form is ActiveX or Native?
My form is called from portal so i have used BADI to connect portal to form

Hi sarang,
I have done a dynamic drop down list in which DESCR field comes from database table and pops into the drop down dynamically. I was working for a PCR scenario so the adobe form was called from portal.I will tell u all the required steps.It might work for u as it is working for me:
1.In the form:
I used two elements from library first is a "ENUMERATED DROP DOWN LIST NO SELECT" from web-dynpro native tab and second is "ISR_TEXT DISPLAY INVISIBLE ON EDIT MODE" from ISR controls tab.Place them one on other inthe form.
For drop down list the setting are:
     In object, field tab click on list items there in ITEMS put :$record.sap-vhlist.DESCR\.DATA\.FIELD.item[*].in ITEMS TEXT write text in ITEMS KEY write key.
     In binding,in default binding put $record.DESCR.DATA[*].FIELD.
For text element the settings are:
     In binding,default binding put Normal.
     when we select ISR_TEXT DISPLAY INVISIBLE ON EDIT MODE it automatically comes with calculated read only int he value tab.so open script editor and place the below code:
$record.DESCR.DATA.FIELD (in calculate).
2.Now the code in BADI is as follows:
In BADI we have to write the code for drop down list in the METHOD "SCENARIO_SET_ADDITIONAL_VALUES"
As i didnt change the standard BADI i added an enhancement spot in which i wrote a function module which fills ADDITIONAL_DATA. and the below code fills the ADDITIONAL_DATA .
DATA: t_t572b TYPE STANDARD TABLE OF t572b WITH HEADER LINE,
        t_t554t TYPE STANDARD TABLE OF t554t WITH HEADER LINE.
SELECT * FROM t572b INTO TABLE t_t572b WHERE sprsl EQ 'E'.
CLEAR ls_additional_data-fieldindex.
LOOP AT t_t572b.
    ADD 1 TO ls_additional_data-fieldindex.
    ls_additional_data-fieldname ='DESCR_KEY'.
    ls_additional_data-fieldvalue = t_t572b-descd.
    APPEND ls_additional_data TO additional_data.
    ls_additional_data-fieldname ='DESCR_LABEL'.
    ls_additional_data-fieldvalue = t_t572b-descr.
    APPEND ls_additional_data TO additional_data.
    CLEAR t_t572b.
ENDLOOP.
For DESCR field the we have to declare DESCR_KEY and DESCR_LABEL in the place holders for key values and palce holders for default values in characteristics tab(where all the fields for the form are defined) of ur respective scenario.(where ur pcr scenario is defined)
Hope ur problem got resolved.
Please let me know if any doubts.
If ur form is not called from portal and u want a dynamic drop down list the difference is put a data drop down list and in object, field tab click on list items there in ITEMS select the field into which u populated the data from the database table (this code shud be written in code Initialization in the respective interface) and in ITEMS TEXT put $ in ITEMS KEY put $.and in binding as we normally do bind it to the respective field in which the data is populated from database table.
It should work.

How do I enable multiple dynamic drop down boxes?

I'm using Windows 2000, Java SDK 2 Standard, Tomcat, Apache, Microsoft Access and Macromedia Dreamweaver Ultradev 4.
With UltraDev I'm trying to create a jsp page that has more than one dynamic drop down box or more than one dynamic select list box. I can show one dynamic object and as many static objects as I need. But when I add a second dynamic drop down box, with a second recordset, the page will only display the first dynamic object and all content following that object will not display.

Here's the code:
<%@page contentType="text/html; charset=iso-8859-1" language="java" import="java.sql.*"%>
<%@ include file="Connections/conn.jsp" %>
<%
Driver DriverRecordset1 = (Driver)Class.forName(MM_conn_DRIVER).newInstance();
Connection ConnRecordset1 = DriverManager.getConnection(MM_conn_STRING,MM_conn_USERNAME,MM_conn_PASSWORD);
PreparedStatement StatementRecordset1 = ConnRecordset1.prepareStatement("SELECT STATE_NAME, COUNTRY FROM STATE");
ResultSet Recordset1 = StatementRecordset1.executeQuery();
boolean Recordset1_isEmpty = !Recordset1.next();
boolean Recordset1_hasData = !Recordset1_isEmpty;
Object Recordset1_data;
int Recordset1_numRows = 0;
%>
<%
Driver DriverRecordset2 = (Driver)Class.forName(MM_conn_DRIVER).newInstance();
Connection ConnRecordset2 = DriverManager.getConnection(MM_conn_STRING,MM_conn_USERNAME,MM_conn_PASSWORD);
PreparedStatement StatementRecordset2 = ConnRecordset2.prepareStatement("SELECT FIRSTNAME, LASTNAME, AGE FROM PLAYER");
ResultSet Recordset2 = StatementRecordset2.executeQuery();
boolean Recordset2_isEmpty = !Recordset2.next();
boolean Recordset2_hasData = !Recordset2_isEmpty;
Object Recordset2_data;
int Recordset2_numRows = 0;
%>
<html>
<head>
<title>Untitled Document</title>
<meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1">
</head>
<body bgcolor="#FFFFFF" text="#000000">
<form name="form1" method="post" action="">
<p>
<select name="select2">
<option value="Canada">Canada</font></option>
<option value="France">France</font></option>
<option value="French Guiana">French Guiana</font></option>
<option value="French Polynesia">French Polynesia</font></option>
<option value="French Southern Territories">French Southern Territories</font></option>
<option value="Germany">Germany</font></option>
<option value="United Kingdom">United Kingdom</font></option>
<option value="United States">United States</font></option>
</select>
</p>
<p>
<select name="select">
<%
while (Recordset1_hasData) {
%>
<option value="<%=(((Recordset1_data = Recordset1.getObject("COUNTRY"))==null || Recordset1.wasNull())?"":Recordset1_data)%>" ><%=(((Recordset1_data =
Recordset1.getObject("STATE_NAME"))==null || Recordset1.wasNull())?"":Recordset1_data)%></option>
<%
Recordset1_hasData = Recordset1.next();
Recordset1.close();
Recordset1 = StatementRecordset1.executeQuery();
Recordset1_hasData = Recordset1.next();
Recordset1_isEmpty = !Recordset1_hasData;
%>
</select>
</p>
<p>
//Here's where things go awry
<select name="select4">
<%
while (Recordset2_hasData) {
%>
<option value="<%=(((Recordset2_data = Recordset2.getObject("FIRSTNAME"))==null || Recordset2.wasNull())?"":Recordset2_data)%>" ><%=(((Recordset2_data = Recordset2.getObject("FIRSTNAME"))==null || Recordset2.wasNull())?"":Recordset2_data)%></option>
<%
Recordset2_hasData = Recordset2.next();
Recordset2.close();
Recordset2 = StatementRecordset2.executeQuery();
Recordset2_hasData = Recordset2.next();
Recordset2_isEmpty = !Recordset2_hasData;
%>
</select>
</p>
<p>
<select name="select5">
</select>
</p>
<p> </p>
</form>
<form name="form2" method="post" action="">
<select name="select3">
</select>
</form>
<p> </p>
</body>
</html>
<%
Recordset1.close();
ConnRecordset1.close();
%>
<%
Recordset2.close();
ConnRecordset2.close();
%>

Dynamic Drop-Down Menu Solution

Hi All,
After spending a lot of time trying to find a good solution for a dynamic drop-down menu, I end up writing my own.
The solution is for a list of items, having ITEM as the primary key of the table and ITEMDESCRIPTION as the list of options for the user to select.
The steps are:
1) JavaBean to return a ResultSet;
2) A custom tag to build a HTML SELECT;
3) A .tld file to declare the custom tag;
4) web.xml where the custom tag mapping resides;
4) A JSP to illustrate how to call the custom tag;
Hoping this will save lots of time to others
Cheers
Trajano Roberto
1) Custom tag
package com.amstras.maintenance.customtags;
* Title: erp
* Description:
* Copyright: Copyright (c) 2001
* Company: amstras
* @author Trajano Roberto
* @version 1.0
import javax.servlet.jsp.tagext.*;
import javax.servlet.jsp.*;
import java.sql.*;
import com.amstras.maintenance.javabeans.*;
public class listitemmaster extends TagSupport {
private itemmaster itemmaster = new itemmaster();
private ResultSet rs = null;
private String parametername = null;
public int doStartTag() throws JspException {
try {
itemmaster.connect();
rs = itemmaster.listitemmaster();
pageContext.getOut().print( "<select name = \"" + parametername + "\">" );
catch ( Exception e ) {
throw new JspTagException( e.getMessage() );
finally {
return EVAL_BODY_INCLUDE;
public int doAfterBody() throws JspException {
try {
if( rs.next() ) {
pageContext.getOut().print( "<option value = \"" + rs.getString( "ITEM" ) + "\">" + rs.getString( "ITEM" ) + "&nbsp&nbsp&nbsp" + rs.getString( "ITEMDESCRIPTION" ) + "</option>" );
return EVAL_BODY_AGAIN;
else {
pageContext.getOut().print( "</select>");
itemmaster.disconnect();
return SKIP_BODY;
catch ( Exception e ) {
throw new JspTagException( e.getMessage() );
public void setParametername( String sPARAMETERNAME ) {
parametername = sPARAMETERNAME;
2) JavaBeam where the method to return the ResultSet resides
public ResultSet listitemmaster() throws SQLException, Exception {
if( con != null ) {
try {
String sSQL = null;
sSQL = " SELECT ITEM, ITEMDESCRIPTION FROM ITEMMASTER ORDER BY ITEM ";
ps = con.prepareStatement( sSQL );
rs = ps.executeQuery();
catch( SQLException sqle ) {
error = "SQLException: list item master failed possible record does not exist. ";
error += sqle.toString();
throw new SQLException( error );
catch( Exception e ) {
error = "An exception occured while listing item master record. ";
error += e.toString();
throw new Exception( error );
finally {
return rs;
else {
error = "Exception: Connection to database was lost.";
throw new Exception( error );
3) extract from the .tld file where the custom tag is declared
<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE taglib PUBLIC "-//Sun Microsystems, Inc.//DTD JSP Tag Library 1.2//EN"
"http://java.sun.com/dtd/web-jsptaglibrary_1_2.dtd">
<taglib>
<tlib-version>1.0</tlib-version>
<jsp-version>1.2</jsp-version>
<short-name>itemmaster</short-name>
<description>item master</description>
<tag>
<name>viewitemmaster</name>
<tag-class>com.amstras.maintenance.customtags.viewitemmaster</tag-class>
<attribute>
<name>item</name>
<required>true</required>
<rtexprvalue>true</rtexprvalue>
<description>item</description>
</attribute>
</tag>
<tag>
<name>listitemmaster</name>
<tag-class>com.amstras.maintenance.customtags.listitemmaster</tag-class>
<attribute>
<name>parametername</name>
<required>true</required>
<rtexprvalue>true</rtexprvalue>
<description>parameter name</description>
</attribute>
</tag>
</taglib>
4) web.xml mapping for the custom tag
<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE web-app PUBLIC "-//Sun Microsystems, Inc.//DTD Web Application 2.2//EN" "http://java.sun.com/j2ee/dtds/web-app_2_2.dtd">
<web-app>
<servlet>
<servlet-name>debugjsp</servlet-name>
<servlet-class>org.apache.jasper.servlet.JspServlet</servlet-class>
<init-param>
<param-name>jspCompilerPlugin</param-name>
<param-value>com.borland.jbuilder.webserverglue.tomcat.jsp.JasperSunJavaCompiler</param-value>
</init-param>
</servlet>
<servlet-mapping>
<servlet-name>debugjsp</servlet-name>
<url-pattern>*.jsp</url-pattern>
</servlet-mapping>
<taglib>
<taglib-uri>erp/maintenance/itemmaster</taglib-uri>
<taglib-location>/WEB-INF/itemmaster.tld</taglib-location>
</taglib>
</web-app>
5) JSP call to the custom tag
<%@ page errorPage="billofmaterialErrorPage.jsp" %>
<%@ taglib prefix = "im" uri = "erp/maintenance/itemmaster" %>
<html>
<head>
<title>CSI - ERP - add bill of material</title>
<link rel = "stylesheet" href = "/erp/erpstyle.css">
</head>
<body>
<h1>Add Bill of Material</h1>
<form action = "billofmaterialcontroller.jsp" method="post">
<table>
<tr>
<td align = "LEFT"><font color = blue>Parent Item:</font></td>
<td><im:listitemmaster parametername = "parameter1" /></td>
</tr>
<tr>
<td align = "LEFT"><font color = blue>Child Item:</font></td>
<td><im:listitemmaster parametername = "parameter2" /></td>
</tr>
<tr>
<td align = "LEFT"><font color = green>Qty Per:</font></td>
<td><input type = "text" name = "parameter3" size = "5" maxlength = "5" /></td>
</tr>
</table>
<p>
<input type="submit" name="submit" value="Add">
<input type="reset" value="Reset">
</p>
<input type = "hidden" name = "Action" value = "Add">
</form>
Click <a href = "billofmaterial.jsp">here</a> to go back.
</body>
</html>

This is a very helpful execellent sample code.
However, If I'm using Model-View-Control approach, then what's the way of applying these codes
to each indivisual file? Say, I have 20 files and only 4 of the 20 need to be treated as they like
to have drop down menu in particular column(s)??? How could the custom tag be applied as the
controller tells the view to present these special treat? or it is not possible (I have to treat each
file, filtered by controller -- one by one as it encounters the special need)?
Thx, Tzae

Using CLOB data type - Pros and Cons

Dear Gurus,
We are designing a database that will be receiving comments from external data source. These comments are stored as CLOB in the external database. We found that only 1% of incoming data will be larger than 4000 characters and are now evaluating the Pros and Cons of storing only 4000 characters of incoming comments in VARCHAR2 data type or using CLOB data type.
Some of the concerns brought up during discussion were:
- having to store CLOBs in separate tablespace;
- applications, such Toad require changing defaults settings to display CLOBs in the grid. Default value is not to display them;
- applications that build web page with CLOBs will be struggling to fit 18 thousand chararcters of which 17 thousand are blank lines;
- cashing CLOBs in memory will consume big chunk of data buffers which will affect performance;
- to manipulate CLOBs you need PL/SQL anonymous block or procedure;
- bind variables cannot be assigned CLOB value;
- dynamic SQL cannot use CLOBs;
- temp tables don't work very well with CLOBs;
- fuzzy logic search on CLOBs is ineffective;
- not all ODBC drivers support Oracle CLOBs
- UNION, MINUS, INTERSECT don't work with CLOBs
I have not delt with CLOB data type in the past, so I am hoping to hear from you of any possible issues/hastles we may encounter?

848428 wrote:
Dear Gurus,
We are designing a database that will be receiving comments from external data source. These comments are stored as CLOB in the external database. We found that only 1% of incoming data will be larger than 4000 characters and are now evaluating the Pros and Cons of storing only 4000 characters of incoming comments in VARCHAR2 data type or using CLOB data type.
Some of the concerns brought up during discussion were:
- having to store CLOBs in separate tablespace;They can be stored inline too. Depends on requirements.
- applications, such Toad require changing defaults settings to display CLOBs in the grid. Default value is not to display them;Toad is a developer tool so that shouldn't matter. What should matter is how you display the data to end users etc. but that will depend on the interface. Some can handle CLOBs and others not. Again, it depends on the requirements.
- applications that build web page with CLOBs will be struggling to fit 18 thousand chararcters of which 17 thousand are blank lines;Why would they struggle? 18,000 characters is only around 18k in file size, that's not that big to a web page.
- cashing CLOBs in memory will consume big chunk of data buffers which will affect performance;Who's caching them in memory? What are you planning on doing with these CLOBs? There's no real reason they should impact performance any more than anything else, but it depends on your requirements as to how you plan to use them.
- to manipulate CLOBs you need PL/SQL anonymous block or procedure;You can manipulate CLOBs in SQL too, using the DBMS_LOB package.
- bind variables cannot be assigned CLOB value;Are you sure?
- dynamic SQL cannot use CLOBs;Yes it can. 11g supports CLOBs for EXECUTE IMMEDIATE statements and pre 11g you can use the DBMS_SQL package with CLOB's split into a VARCHAR2S structure.
- temp tables don't work very well with CLOBs;What do you mean "don't work well"?
- fuzzy logic search on CLOBs is ineffective;Seems like you're pulling information from various sources without context. Again, it depends on your requirements as to how you are going to use the CLOB's
- not all ODBC drivers support Oracle CLOBs not all, but there are some. Again, it depends what you want to achieve.
- UNION, MINUS, INTERSECT don't work with CLOBsTrue.
I have not delt with CLOB data type in the past, so I am hoping to hear from you of any possible issues/hastles we may encounter?You may have more hassle if you "need" to accept more than 4000 characters and you are splitting it into seperate columns or rows, when a CLOB would do it easily.
It seems as though you are trying to find all the negative aspects of CLOBs and ignoring all the positive aspects, and also ignoring the negative aspects of not using CLOB's.
Without context you're assumptions are just that, assumptions, so nobody can tell you if it will be right or wrong to use them. CLOB's do have their uses, just as XMLTYPE's have their uses etc. If you're using them for the right reasons then great, but if you're ignoring them for the wrong reasons then you'll suffer.

Simple Data Type in CAF of SAP NetWeaver DevStudio 7.1 SP3

Hallo
Anybody knows about the use of Enumeration for simple Data Type in CAF of SAP NetWeaver DevStudio 7.1 SP3?
I've defined an attribute "status" for the Entity "Project" with the following values
0: NEW;
1: ACTIVE;
-1: INACTIVE.
As you see the data type is short.
In the program I want to use the following code:
Project myProject = new Project();
myProject.setStatus(Status.NEW)
But I found it out, it is inpossible to to use Status.NEW.
On the other side I read the article of https://www.sdn.sap.com/irj/servlet/prt/portal/prtroot/docs/library/uuid/085098ea-0c01-0010-12a8-80ac838bec85. This article is again not updated with the version 7.1 SP 3.
I cannot understand about the whole changes. In the previous release we can define a DDIC type and use it as Simple Data type and in the new Release we just use the XSD-Facet to define an enumeration, but the problem is: we can not reference it in the program. I don't see any advantage. And I tried to find out how I can define the attibute using DDIC type. I didn't get it.
Thanks for any Hints!
Kind Regards!
Ping

Hi Oliver,
Thanks for the reply!
I have login into the system, using User Id and Password.
I have tried unsinstalling everything but the result remains the same.
Previously only one service SAPCE_01 was showing up in the services explorer. But when I tried the
Instance 00:
sc create SAPRKT_00 binPath= "C:\usr\sap\RKT\SYS\exe\uc\NTI386\sapstartsrv.exe pf=C:/usr/sap/RKT/SYS/profile/CE1_SCS00_xxxxx" start= auto obj= "NT AUTHORITY\LocalService" password= abcd1234
Instance 01:
another service SAPCE1_00 was created. But when I tried to retry the instlattio, the installation again stopped at the point while starting the service and when I tried to retry it terminted with the following error.
Please guide.
sapinst.exe - Application Error
The instruction at "0x00cbf040" referenced memory at "0x0072006d". The memory could not be "read".
Click on OK to terminate the program
Click on CANCEL to debug the program
Selfextractor error
iaextract.c:888: child has signaled an exec error. Keeping directory C:/DOCUME1/I047488/LOCALS1/Temp/sapinst_exe.1448.1196681060
OK
Manish

Configuring Dynamic drop down in ABAP Function Module based VC application

Dear Expert,
Can someone help me in configuring Dynamic Drop down list in ABAP function module based
VC application, so that all the backend data like material description list should display in drop down list followed by * search.
Thanks & Regards,
Kundan

Hi Anja,
As you suggested i design a combo box with dynamic entry list. But it not displaying any item for selection. Combo box is showing empty. Can you please help me in this so all the backend list should display in combo box dynamically?
Thanks,
Kundan

Three Dynamic Drop Downs

I have to create a form that would have dynamic drop down menus, and then depending on those choices populate a number of fields.
Here is the basic structure
Division ( 5 choices )
Center ( dependent on choice of division )
Dept ( dependent on the choice of division and center )
The department will decide what charge codes will appear on the form.
I have been building dynamic drop downs with if else statements, but I really think I need an array. I know they are going to change something and then I will have lots of changes to do. Updating an array sounds so much easier. Something like:
Division, Center, Dept, Costcode1, costcode2, costcode3
Can I do this? How do I do this. I saw a thread about inserting an array as a variable in the hierarchy, but I can't seem to find how. And then how do I reference it once its built
Thanks in advance.
Kurt
[email protected]

For the United States, we use this:
http://www.usps.com/ncsc/addressinfo/citystate.htm

Problem with central build of Simple Date Type with Enumeration

Dear gurus,
I hope I'm posting this in the correct forum. Please advise if I'm in the wrong forum.
I have a Web Dynpro DC in which I've created a simple data type with enumeration. It is used for binding to a radio box. The data type is called DownloadType; the enumeration contains two vales: current and archive. To allow me to access the enumeration values, I turn on the "Generate a class representation of the enumeration" in the data type builder.
I then reference the enumeration values with code like:
if (downloadType.equals (DownloadType._CURRENT))
    yada yada yada
This works fine when building locally and deploying directly. But when the DC is built by CBS (or doing a "Development Component->Build..." in NW Dev Studio), the build fails, stating that the DownloadType._CURRENT symbol cannot be resolved.
For example:
C:yadayadayada.java:227: cannot resolve symbol
symbol : variable _CURRENT
location: class yadayadayada.DownloadType
                equals(DownloadType._CURRENT)) {
Apparently the central builder is not smart enough to handle the "Generate a class representation" flag.
Is this a known problem? Are there any workarounds?
Thanks in advance for any help you can provide.
-Kelly
P.S. Environment: 2004s

Hi Kelly,
works for me using SP10, what SP are you on?
There's a line in the DC log that says:
     [ddgen] [Info]    Generating datatypes/com/x/x/x/MyEnum.java
and the java compiler includes the matching path for compilation:
      [echo]   source paths:
      [echo]     ...\_comp\src\packages
      [echo]     ..\t\ABF37B5AFB3B2E8A76FFD29E7862EA48\gen_ddic\datatypes
Regards,
Marc

How to create Dynamic Drop down list ?

Hi experts
I want to create a Dynamic Drop down list that should be an Editable,after editing that i need to save.
thanks,
vikram.c.

Hello,
Please go through this link:
https://www.sdn.sap.com/irj/sdn/wiki?path=/display/vc/linking%2bdrop-down%2blists
If useful reward.
Vasanth

Dynamic Drop Down creation using simple data types

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