Re: CellTable - Adding a Button to a Column

You can create a Column with a ButtonCell as follows:

ButtonCell buttonCell = new ButtonCell();

Column buttonColumn = new Column<DocumentDetailsDTO, String>(buttonCell) {

  @Override
  public String getValue(DocumentDetailsDTO object) {

    // The value to display in the button.
    return object.getName();
  }

}

table.addColumn(buttonColumn, "Action");

You can then set a FieldUpdater on the Column to be notified of clicks.

buttonColumn.setFieldUpdater(new FieldUpdater<DocumentDetailsDTO, String>() {

  public void update(int index, DocumentDetailsDTO object, String value) {

    // Value is the button value.  Object is the row object.

    Window.alert("You clicked: " + value);

  }

});

Thanks,
John LaBanca
jlabanca@google.com

On Thu, Oct 28, 2010 at 5:26 AM, dave_mcgee <daveomcgee@gmail.com> wrote:

Hi there,

I'm wondering if anyone could assist me with adding buttons to columns
within CellTables? I can do TextColumns fine but I'm experiencing
issues adding a button I've defined. So its been working fine with the
text using the code at the end.. but i want to do this:

// create a column for a download button
// add the button to the column
// add the column to the table


Any ideas much apreciated!
--

(This works fine for text..)

       documentColumn = new TextColumn<DocumentDetailsDTO>() {
           @Override
           public String getValue(DocumentDetailsDTO object) {
               return object.getName();
           }
       };

     table.addColumn(documentColumn, "File");

Regards,
Dave.

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