Table Filtering

Question

I have to implement the filter functionality in a table. so I had written this:
IPrivateUDBView.IUDBtableNode UDB_node = wdContext.nodeUDBtable();
int num_ele = UDB_node.size();
String itemValue = wdContext.currentContextElement().getFilteritem();
if(ItemValue==null)
     itemValue=".*";
String NameValue = wdContext.currentContextElement().getFilterName();
if(NameValue==null)
     NameValue=".*";
String DeptValue = wdContext.currentContextElement().getFilterDept();
if(DeptValue==null)
     DeptValue=".*";
String CompanyValue = wdContext.currentContextElement().getFilterCompany();
if(CompanyValue==null)
     CompanyValue=".*"; 
String AreaValue = wdContext.currentContextElement().getFilterArea();
if(AreaValue==null)
     AreaValue=".*";   
if(ItemValue!=".*" || NameValue!=".*" || DeptValue!=".*" || AreaValue!=".*" || CompanyValue!=".*")
    for(int i=num_ele-1;i>=0;i--)
     String UDB_item = (String)UDB_node.getUDBtableElementAt(i).getITEM();         
     String UDB_name = (String)UDB_node.getUDBtableElementAt(i).getNAME();
     String UDB_Dept = (String)UDB_node.getUDBtableElementAt(i).getDEPT();
     String UDB_Area = (String)UDB_node.getUDBtableElementAt(i).getAREA();
     String UDB_company = (String)UDB_node.getUDBtableElementAt(i).getCOMPANY();
    if(!UDB_Item.matches(itemValue) || !UDB_name.matches(NameValue)||
!UDB_Dept.matches(DeptValue)|| !UDB_Area.matches
(AreaValue)|| !UDB_company.matches(CompanyValue))
    IPrivateUDBView.IUDBtableElement del_element = wdContext.nodeUDBtable().getUDBtableElementAt(i);
    wdContext.nodeUDBtable().removeElement(del_element);              
so, when i click on filter button after giving a value that matches a value in the table,
the corresponding row is displayed. But when I clear the filter value and click on filter button again,
the table goes blank. This happens becos I remove the table elements. how can i filter without
removing the elements? i have tried the blog on filter, but that doesn't work.
I also tried to copy the node elements from another node that had the same table elements.
Even though the copy works, the data is not reflected in the table.
IWDNode TableNode = wdContext.nodeUDBtable();
IWDNode CopyViewNode = wdContext.nodeViewTabNode();
WDCopyService.copyElements(CopyViewNode,TableNode);
please tell me hoe to solve this problem.
Thnx
jack

Answer 1

Hi Rajeev
Thanks for the reply.
I gave the steps in the blog another try and this time it worked perfect.
I have not mapped the conteroller's context to the view table context as mentioned in the blog. so, if i dont map it, it does not display anything on the table initially. but after i do a filter, the matched row is displayed.
in order to make values appear in the table initially, I had done the mapping. when i do the mapping and click on filter button, it throws java.lang.IndexOutOfBoundsException.
However, heres what I need:
1.The table in the view has to be populated with the values that are available in the Controller's Node (say..ControllerTableNode).
2.Once i perform a filter, if there is a match with the filter value, it displays that corresponding row.
3.Now, if i want to clear that filter, and revert to the original state of the table with all the data, how do i do that?
I have implemented step 2. but not able to implement step 1 and 3.
please suggest.
thnx
jack
Message was edited by: jack b
Message was edited by: jack b