I have a table where my column headers are set with the following instruction :
table.setColumnHeader
I wonder how can I create multilevel table headers like on this page?
As of Vaadin 6.7.3, this is currently not possible using the stock Vaadin table component.
There is a Trac issue raised for changing this for Vaadin 7. See https://vaadin.com/forum/-/message_boards/view_message/900369 for more details.
Depending on your requirements, you could hide the table component's header and try to simulate the header (by using a HorizontalLayout, generating your own headers and listening to column resize events); alternatively, you could simply generate your own HTML <table></table>
and assign it to a label component.
In Vaadin7 you can set the table header height dynamically by adding following CSS rule to your theme:
.v-table-header-wrap {
height: auto;
}
The only think is that the column separator is not set to 100% of the header row height ...
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