Rowid in datatable

Hi,
How to get teh rowid in datatable?
When i view teh html, i see that the textfield id is constructed as "datatable_id:0:textfield_id", "datatable_id:1:textfield_id", etc. I want to know the rowid so that i can pass it to some javascript.
Is there any api that'll give me this?
Thanks,

Use HtmlDataTable#getRowIndex(). Here is an use example: [http://balusc.blogspot.com/2006/06/using-datatables.html#AddRowNumbers].

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How do I get the rowid or the DataModel from a DataTable inside a DataTable

Hi,
I have a simple application which I cannot get to work.
I have two entity classes: Parent and Child.
I want to create a page which lists all of the Parents, and in a column of the Parent row has an inner dataTable which displays the Children of the Parent. I then want to click on the Child and link to a view of that Child. What is happening is that I cannot resolve which child was clicked inside my row. I don't seem to be able to get the datamodel for the List children, so it always defaults to the first child in the list.
Goal: drill down to a specific child from a list of parents with a sublist of children belonging to each parent.
I have tried creating a new method called prepareChildView() in ParentController like this below but it always returns the first child. I figure I need to create the DataModel earlier but cannot figure out how to do this. Perhaps the auto generated pattern makes it difficult to achieve what I want to - not sure.
public String prepareChildView() {
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        DataModel d = new ListDataModel(current.getChildren());
        Child child = (Child)d.getRowData();
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        return "\children\View";
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Parent.java
@Entity
public class Parent implements Serializable {
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    private List<Child> children;
    public List<Child> getChildren() {
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}Child.java
@Entity
public class Child implements Serializable {
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    @JoinColumn(name = "parent")
    private Parent parent;
    public Parent getParent() {
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    public void setParent(Parent parent) {
        this.parent = parent;
}ParentFacade and ChildFacade are auto generated from NetBeans, as are ParentController and ChildController.
ParentController:
Code doen't fit in the post.
List.xhtml
<h:form styleClass="jsfcrud_list_form">
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                <h:commandLink action="#{parentController.previous}" value="#{bundle.Previous} #{parentController.pagination.pageSize}" rendered="#{parentController.pagination.hasPreviousPage}"/>
                <h:commandLink action="#{parentController.next}" value="#{bundle.Next} #{parentController.pagination.pageSize}" rendered="#{parentController.pagination.hasNextPage}"/>
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Hi,
It will help to resolve your issue:
    public String processChildView(){
        UIComponent component = null;
        String componentId = null;
        Parent parent = null; //Bean class
        Child child = null; //Bean Class
        FacesContext context = FacesContext.getCurrentInstance();
        UIViewRoot root = context.getViewRoot();
        String childView = "childView";
        //Parent Table UIData
        componentId = "parentChildTable";
        component = findComponent(root, componentId);
        UIData parentTable = (UIData) component;
        //Child Table UIData
        componentId = "childTable";
        component = findComponent(root, componentId);
        UIData childTable = (UIData) component;
        //Perform Parent Child operation
        if(parentTable != null && childTable != null){
            if(parentTable.getRowData() instanceof Parent){
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                //Get child object by parent object using childTable's Row Index
                parent = (Parent) parentTable.getRowData();
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                System.out.println("Parent Name " + parent.getName() + "Child Name " + child.getName());
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           if (found != null) {
             return found;
         return null;
} Regards,
Manish Paliwal
"Life is beautifull."

Input validation in datatable

Hi all,
I have a datatable displaying some records and allowing for each record to press a link to to something with that line. I am however facing problems with the field validation. Here's what I have:
<t:dataTable style="width: 100%" id="tfopts" binding="#{quoteOptions.freeFormOptionTable}" value="#{quoteOptions.unselectedFreeFormOptions}" var="option">
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</t:dataTable>Now, I need to make sure that the description is not empty when hitting the commandLink. I have tried by setting the required attribute, but then it's set for all rows, which I do not want.
Alternatively I approached it via Javascript, but it occurred to me that I don't know the id of the field on the row where the commandlink is clicked.
Can anyone help me out with this?
Thanks

tombatore wrote:
Now, I need to make sure that the description is not empty when hitting the commandLink. I have tried by setting the required attribute, but then it's set for all rows, which I do not want.This should work:required="#{!empty param['formId:dataTableId:rowId:commandLinkId']}"The 'rowId' part can be obtained from UIData#getRowIndex().
Alternatively I approached it via Javascript, but it occurred to me that I don't know the id of the field on the row where the commandlink is clicked.Make use of the 'this' reference and pass the commandlink element itself as argument to the JS function.
onclick="foo(this)"
function foo(element) {
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Dynamic datatable and command link

I'm having a problem creating CommandLink's automatically. What we have is a tag, which can contain a set of data. We need this on several locations, so we have to create a datatable dynamically. When you press a link, it should be possible to retrieve the ID of the component on that specific row.
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Code:
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datatable.getChildren().add(selectColumn);The rowId is always #{row.code}, instead of the actual data. Is there a way to create a command link dynamically, press it and retrieve the ID of that field? That expression should be evaluated at runtime and added to the datatable, but that doesn't happen apparently.

I've read your article, but I didn't find anything I could use. Facing a deadline and don't really have time to try out multiple (possible) solutions. The problem is that all the examples I can find point to MethodBinding, but I don't need that. I just need to get the ID of the row that was clicked, nothing more.
This works fine:
link.setValueExpression("value", ve);I don't see why the other expression isn't evaluated.
I can do getParent().getParent() to get a reference to the DataTable, but the datamodel on that object is empty btw.

Selecting the particular cell in the datatable

hi all,
sorry for such a stupid question.
i have a datatable component. i can get the rowid of the particular row.
but how can i identify the particular cell in that row so that i can update its
value?
is it possible to update the cell's value in javascript after identifying it?
thanks in advance.
enjoyyy,
java_buff

Thanks Edward for ur reply...
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Getting Id of the row in dataTable

Hello everyone I have a problem.
I have a dataTable that looks like this:
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Ok something is work, but i have a problem with passing this id to my manged bean.
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}When I double click on the row the value from the hidden filed(id from db) is passed to filed (selectedRowId) in the form below the dataTable. Than i set the action and then submit the page.
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Regards
Tom

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Blog : http://radiofreetooting.blogspot.com/

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David http://blogs.msdn.com/b/dbrowne/

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Most people just tend to add the column and then hook into the various change events to update the value as needed.

How can I display one of two DataTables based on criteria

I have two DataTables. One DataTable should be displayed or the other DataTable should be displayed in the same JSP based on some criteria. I wish I could put an if statement in the JSP page but how else can I do this? Is there a JSF tag that is like an if statement?

Hi
Try to use rendered attribute.
Create boolean variable in your bean ie private boolean showTab1And in jsp type
<h:dataTable id="tab1" value="..." var="..." rendered="#{myBean.showTab1}">
</h:dataTable>
<h:dataTable id="tab2" value="..." var="..." rendered="#{!myBean.showTab1}">
</h:dataTable>if showTab1 is true, first dataTable shows, otherwise second dataTable is shown.
Hope it helps
Martin
ps. You can combine value of rendered :
rendered="#{myBean.boolVar1 && myBean.boolVar2 && !myBean.boolvar3}"

DateField not getting copy in the matrix using Datasource & Datatable

Hello All,
I have tried to copy data From Purchase Order Tables to my own created User Defined Form matrix columns using DBDatasource & Datatables ,Instead of Document Date all other data are getting copied but that document date field is not
getting the data plus it is not showing any error message as such.
Following is the code which i have written :-
=====================================
oPurchase_Amend.DataSources.DataTables.Add("oMatrixDT" )
oPurchase_Amend.DataSources.DataTables.Item("oMatrixDT" ).Clear()
Dim sSQL As String = "SELECT T1.[ItemCode], T1.[Dscription], T1.[Quantity], T1.[Price],(Select InvntryUoM From OITM Where ItemCode=T1.ItemCode) as 'UoM',T1.LineNum,T0.DocNum as 'FrmDate' FROM OPOR T0 INNER JOIN POR1 T1 ON T0.DocEntry = T1.DocEntry WHERE T0.[DocNum] ='1' and T0.CardCode='C0001'
oPurchase_Amend.DataSources.DataTables.Item("oMatrixDT" ).ExecuteQuery(sSQL)
oMatrix = oPurchase_Amend.Items.Item("mtx_0").Specific
oMatrix.Clear()
Dim oDBDataSource As SAPbouiCOM.DBDataSource = oPurchase_Amend.DataSources.DBDataSources.Item("@OSL_POAMD")
Dim oDataTable As SAPbouiCOM.DataTable = oPurchase_Amend.DataSources.DataTables.Item("oMatrixDT" )
oDBDataSource.Clear()
For row As Integer = 0 To oDataTable.Rows.Count - 1
Dim offset As Integer = oDBDataSource.Size
oDBDataSource.InsertRecord(row)
oDBDataSource.SetValue("U_ItemCode", offset, oDataTable.GetValue("ItemCode", row).ToString())
oDBDataSource.SetValue("U_ItemName", offset, oDataTable.GetValue("Dscription", row).ToString())
oDBDataSource.SetValue("U_UoM", offset, oDataTable.GetValue("UoM", row).ToString())
oDBDataSource.SetValue("U_OldQty", offset, oDataTable.GetValue("Quantity", row).ToString())
oDBDataSource.SetValue("U_OldRate", offset, oDataTable.GetValue("Price", row).ToString())
> Line For Copying Document Date Data to the matrix datasource
oDBDataSource.SetValue("U_OldDate", offset, oDataTable.GetValue("FrmDate", row))
oDBDataSource.SetValue("U_LineId", offset, oDataTable.GetValue("LineNum", row))
Next
'--- Rebinding the datasource to the matrix columns -
oMatrix.Columns.Item("col_0").DataBind.SetBound(True, "@OSL_POAMD", "U_ItemCode")
oMatrix.Columns.Item("col_1").DataBind.SetBound(True, "@OSL_POAMD", "U_ItemName")
oMatrix.Columns.Item("col_3").DataBind.SetBound(True, "@OSL_POAMD", "U_OldQty")
oMatrix.Columns.Item("col_5").DataBind.SetBound(True, "@OSL_POAMD", "U_OldRate")
oMatrix.Columns.Item("col_7").DataBind.SetBound(True, "@OSL_POAMD", "U_OldDate")
oMatrix.Columns.Item("col_9").DataBind.SetBound(True, "@OSL_POAMD", "U_LineId")
oMatrix.LoadFromDataSource()
But i am not able to get the document date in the column of the matrix .
Please suggest what changes i have to meke in this code to get the desired output.
Thanks & Regards,
Amit
Edited by: AmitSharma_061985 on Dec 17, 2009 12:24 PM

Hi Michael,
FrmDate is the Document date of the purchase order which i am fetching through sql query and trying to copy that in the matrix
through datasource .
Edited by: AmitSharma_061985 on Dec 18, 2009 7:07 AM

Rowid in datatable

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