GWT data grid isn't presented

Hello,

I'm trying to switch from CellTable to DataGrid. The actual change was
very easy (APIs are the quite the same) - but I cannot get the grid to
be visible without setting explicitly its width and height. In the
CellTable it was enough to set width and height to 100% - and that is
the behavior I want.

In my view I have two sections in HotrizontalPanel: one shows some
tabs (buttons) and the other shows the grid. Each time a tab is
clicked, the grid area is cleared and a new grid is created.

The view looks like this:

<ui:style>
.expanded {
width: 100%;
height: 100%;
}

.simpleContainer {
border-top: 5px solid #484848;
border-bottom: 5px solid #484848;
}
</ui:style>

<c:SimpleContainer addStyleNames="{style.simpleContainer}
SimpleContainer">
<g:HorizontalPanel>
<g:HorizontalPanel ui:field="headersContainer"/>
<g:FlowPanel ui:field="tablePanel"
styleName="{style.expanded}"/>
</g:HorizontalPanel>
</c:SimpleContainer>
And this is the snap of HTML from the running application:

<div class="GKQJTVMDCNC-com-mycode-management-client-ui-panels-
PropertiesPaneView_PropertiesPaneUiBinderImpl_GenCss_style-
simpleContainer SimpleContainer" id="x-widget-21" style="width:
1730px; height: 126px; ">
<table cellspacing="0" cellpadding="0">
<tbody>
<tr>
<td align="left" style="vertical-align: top; ">....</td>
<td align="left" style="vertical-align: top; ">
<div class="GKQJTVMDBNC-com-mycode-management-client-
ui-panels-PropertiesPaneView_PropertiesPaneUiBinderImpl_GenCss_style-
expanded">
<div style="position: relative; overflow-x:
hidden; overflow-y: hidden; "
__gwtcellbasedwidgetimpldispatchingfocus="true"
__gwtcellbasedwidgetimpldispatchingblur="true">
....
</div>
</div>
</td>
</tr>
</tbody>
</table>
The upper div has the right width and height, but somehow the DataGrid
div has 1px height and 0px width (at list according to the chrome
developer tool)

<div class="GKQJTVMDBNC-com-mycode-management-client-ui-panels-
PropertiesPaneView_PropertiesPaneUiBinderImpl_GenCss_style-expanded">
Any idea?

Ben

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