ListGrid Column Editing Support

Smart GWT Technical Q&A
1

Hi,

I am using SGWT 3.0 and evaluating options for one of my requirement. I need a grid like capability with support for column editing, i.e. once the Grid is rendered based on the data from the server, i should be able to add/remove/rename columns.

I couldn’t find any relevant examples around this. Firstly does SGWT provide support for column editing? If not what would be the best option to do this.

Thanks,
Vicky

2

Show and hide of columns is built-in and on by default. Wizards for ends users to make their own formula or summary columns are also built in (see canAddFormulaFields). It would be easy to add a context menu to rename a column. If these aren’t what you’re looking for, be more specific.

3

For show/hide of columns all the columns will need to be available upfront. However what if once the grid is rendered, i want to add a new column or remove one of the existing ones.

Once all the editing is done, i want to be able to extract the final data. E.g.

Server send, col1 | col2 | col3

After modifications(add/delete/rename) the grid now has columns col11 | col3 | col4

Here, col1 got renamed to col11, col2 got deleted and col4 got added.

Eventually once i try fetching the data to send it back to the server to persist, i would typically expect data only against the final set i.e. col11 | col3 | col4.

Let me know if this clarifies what i am looking for.

Thanks,
Vicky

4

It doesn’t really clarify, except that perhaps you didn’t notice there’s a setFields() API?

5

Ok, so setFields() can be called even after the grid is rendered to add/remove columns.
I’ll try using this API and see if helps my case.