Insert into dropdown list filled from database

Question

Hi,
I have a dropdownlist which is filled from a database. I want to insert an empty/dummy option at index 0. I couldn't find when the rowset execute in the code( the autogenerated constructor have datasorce and command setup but no execute()), and don't how to modify the data from the database. Any help or suggestions? thanks.
John

Answer 1

It doesn't work if the selectOneMenu uses a converter. (I assume it works if the used values are just strings.)
Then you get on selecting the extra added selectItem a
Validation Error: {0}Value is not validJSP source:
<h:selectOneMenu binding="#{main.ddlReps}" converter="#{main.ddlRepsConverter}" id="ddlReps" styleClass="blackfont7">
  <f:selectItem itemLabel="Alle reps" itemValue="0"/>
  <f:selectItems binding="#{main.ddlRepsSelectItems}" id="ddlRepsSelectItems" value="#{main.hdusersRowSet.selectItems['SID,USERNAME']}"/>
</h:selectOneMenu>SID is a number(3) type field in an Oracle table
Converter used:
private BigDecimalConverter ddlRepsConverter = new BigDecimalConverter();
public BigDecimalConverter getDdlRepsConverter() {
    return ddlRepsConverter;
public void setDdlRepsConverter(BigDecimalConverter bdc) {
    this.ddlRepsConverter = bdc;
}I thought I could outsmart this but no:
<f:selectItem itemLabel="Alle reps" itemValue="#{main.dummy}"/>With the following code in the java code of the page:
private int dummy = 0;
public int getDummy() {
    return this.dummy;
}But then the converter starts giving errors.
Roland