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    Uploading Excel files of unkown structure to Web Dynpro, Part One - Preview,  Uploading Excel files of unkown structure to Web Dynpro, Part Two - Reading in the excel

    Creating Dynamic table UI element

    In this part of my blog I will show you how to dynamically create a table UI element to
    host the excel table we just uploaded. In the method wdDoModify() we add the following code:

    try

    {

       //Get  the row that contains the header
        ArrayListrow = getHeader_row();
        IWDTransparentContainer container = (IWDTransparentContainer)      
        view.getElement("TargetContainer");

        if (!firstTime)
       {

          // Get  node 'Table'
         IWDNodeInfo tableInfo = wdContext.getChildNode("Table", 0).getNodeInfo();

         //Each UI element receives an I.D on creation. If the I.D exists get it and destroy the element
         String id = wdContext.currentViewElement().getTableId();

          if (id != null)
         {
            view.getElement(id).destroy();
         }

        IWDTable tableUI = view.createElement(IWDTable.class);
        tableUI.setDisplayEmptyRows(false);

        // save the I.D.  for later
        wdContext.currentViewElement().setTableId(tableUI.getId());

         if (row.size() > 0)
        {      
         //for each row of the table create all columns and insert a text view into each cell       
          for     (int j = 0; j < row.size(); j++)
         {

             String col_name = (String) header_row.get(j) + j;
             if (col_name == null || col_name.equalsIgnoreCase(""))
            {
                          continue;
            }

             // column
             IWDTableColumn col = view.createElement(IWDTableColumn.class, col_name);

             // header
             IWDCaption header = view.createElement(IWDCaption.class, "cap__" + j);

              // text view
             IWDTextView textView = view.createElement(IWDTextView.class, "text_"+j);
             header.setText((String) header_row.get(j));

             col.setHeader(header);
             textView.bindText(tableInfo.getAttribute(col_name));
             col.setTableCellEditor((IWDTextView) textView);
             tableUI.addGroupedColumn(col);

          }

            //bind the Table UI element to the context
            tableUI.bindDataSource(tableInfo);

            // add the Table UI element to the view container

            if (container != null)
           container.addChild(tableUI);

      }

     }

    }

    catch (Exception e)

    {

       msgMgr.reportException(e.getLocalizedMessage());

    }

    • Topics: Web Dynpro
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