Lookup in a grid

Question

Hello all..
I have an entity object which represents a table of type: description(VARCHAR),date(Date), Id(Numeric).
The Id is FK for table: Id(Numeric PK), Name VARCHAR
Now in my application I have a gridControl which should represent table1 but instead of Id I want it to show Name from table2. The obvious solution is a "join" but I also want to insert records to the grid. Therefor I've created a view which represents both tables. Now everytime I press a button on my form I do "table1RowSetInfo.getRowSetAccess().newRow() and insert a value into table1.id. The problem is that I get a validation exception that table2.id cannot be null... Obviously I don't want to change the lookup table.
What can I do?
Thanks
Liron

Answer 1

hi,
          important here to aknowledge that the {} databinding are compile time. This implies a whole lot of restrictions. The scenario below works for me:
          - getLookupMap in the pageflow returns the lookup map
          - getList in the pageflow returns the list
          The following code then works for me
          <!-- in the heading of my JSP -->
          // get the lookup map into pagecontext
          <netui-data:getData resultId="lookup"
          value="{pageFlow.lookupMap}"/>
          // pull down as a new page attribute
          <%
          Map lookup = (Map)pageContext.getAttribute("lookup");
          %>
          Now, in my repeater ( of gridview ) I implement the column showing the actual mapped value like this:
          // to get the item key
          <netui-data:getData resultId="key"
          value="{container.item}"/>
          // to set the mapped attribute value
          <%
          pageContext.setAttribute(
          "lookupValue",
          lookup.get(pageContext.getAttribute("key")));
          %>
          // to render the mapped attribute value
          <netui:label value="{pageContext.lookupValue}"
          defaultValue=" " />
          Probably not exactly what you asked for, but hopefully close enough to guide you in the right direction.
          - Anders M.