Hi guys,
it is not a myfaces question but i'm crazying and i've read your
forums,viewing your ability to solve lots of problem...
i need your help,please,i have this problem from 15 days...
i've developed a datatable for input fields that,depending of number n
inserted by user,creates n columns...
each ROW of datatable is an input form.
My application has to collect data retrieved from each row and put them into
a db...
my question is:
I've created an arraylist for collect rows and each rows is an arraylist of
values..i've passed empty rows to arraylist
public void loadMyList() {
ArrayList row1=new ArrayList();
ArrayList row2=new ArrayList();
ArrayList row3=new ArrayList();
//Convert rows to List and set the List.
myList = new ArrayList();
myList.add(row1);
myList.add(row2);
myList.add(row3);
setMyList(myList);
}
With this method i populate datatable with 5 columns
public void populateMyDataTable() {
// Any columns?
if (myList != null && myList.size() > 0) {
myDynamicDataTable = new HtmlDataTable();
for (int i = 0; i < 5; i++) {
// Set output.
UIInput output = new UIInput();
ValueBinding myItem =
FacesContext.getCurrentInstance()
.getApplication().createValueBinding(
"#{myItem[" + i
+ "]}");
output.setValueBinding("value", myItem);
// Set column.
UIColumn column = new UIColumn();
column.setHeader(header);
column.getChildren().add(output);
// Add column.
myDynamicDataTable.getChildren().add(column);
}
}
}
this is my edit button for each row
public void editMyData(ActionEvent e) {
try {
myList = (List) getMyDynamicDataTable().getRowData();
for (int i=0;i<myList.size();i++){
System.out.println("elemento "+myList.get(i));
}
} catch (Exception g) {
g.printStackTrace();
System.out.println("errore nell'item
"+getMyDynamicDataTable().getRowIndex());
}
}
i've retrieved rowdata into a list,the problem is that THIS LIST HAS ONLY
NULL VALUES!!
The cause is i've passed an empty rows list,but how can i retried values
inserted in a second moment?
I hope you can help,this is my jsp page....i'm waiting for you help...
<h:dataTable var="myItem" value="#{myBean.myList}"
binding="#{myBean.myDynamicDataTable}">
<h:column>
<f:facet name="header">
<h:outputText value="ID" />
</f:facet>
<h:commandButton actionListener="#{myBean.editMyData}">
</h:commandButton>
</h:column>
</h:dataTable>
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