Wt

Hey,

Can you post a screenshot? Are you actually scrolling the table or perhaps a container which contains the table?

Koen

Hello Koen

Thank you for you quick response. I post you the screenshot as attachement.

Here are the css settings:

/** processdata */
#cont6{
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
}

#data3{
    position: absolute;
    top: 0;
    left: 0;
    bottom:10px;
    right: 10px;
    overflow: scroll;
}

#data3list{
    position: absolute;
    top: 0;
    left: 0;
    font-size: 12px;
}

The header file with the class definitions:

class CDataViewWidget: public Wt::WTableView
{
public:
    CDataViewWidget(const std::string& strWidgetId);
    virtual ~CDataViewWidget();
};

class CGenericModel : public Wt::WStandardItemModel
{
public:
    CGenericModel();
    virtual ~CGenericModel();
};


class CGenericDataWidget
{
private:
    CGenericModel* m_pxDataModel;
    CDataViewWidget* m_pxDataView;
public:
    void init();
    CGenericDataWidget(const std::string& strWidgetId);
    virtual ~CGenericDataWidget();
};

The implementation of the init() method the GenericDataWidget.cpp:

void CGenericDataWidget::init()
{
    m_pxDataView->setColumnResizeEnabled(true);
    m_pxDataView->setColumnAlignment(0, Wt::AlignCenter);
    m_pxDataView->setHeaderAlignment(0, Wt::AlignCenter);
    m_pxDataView->setAlternatingRowColors(true);
    m_pxDataView->setRowHeight(12);
    m_pxDataView->setHeaderHeight(12);
    m_pxDataView->setSelectionMode(Wt::SingleSelection);
    m_pxDataView->setEditTriggers(Wt::WAbstractItemView::NoEditTrigger);
    m_pxDataView->setSortingEnabled(false);
    m_pxDataView->setModel(new VirtualModel(10000, 50, m_pxDataView)); // m_pxDataModel
}

Regards

Beat

Hey,

It's not the tableview that is scrolling, but some ancestor. For some reason your tableview didn't render the entire model though, but even if it did, that's probably not what you want.

You need to make sure the tableview itself has a limited height: by setting a height or by using layout managers to propagate the window height to the table.

Koen

Hello

Thanks for your answer. I checked the ancestors of the tableview and saw no changes in the behaviour.

You're right: for some reason the tableview didn't render the model. But what's the reason...

For test, I removed the subclassing for the tableview and use Wt::WTableView and toke the VirtualModel from the examples as data model.

If I set the tableview's height and width by doing a resize of the tableview like in the example (m_pxDataView->resize(650, 400);), only 68 rows were rendered...

As higher I set the value of the tableview' height property, as more rows were returned. - But the height of the tableview itself will also grow up.

If I set the height to 400, i got 68 rows of data and the tableview had fit to the screen. A value of 1000 gave me back 169 rows and wouldn't fit on the page without scrolling.

Ok, I have to filter my datasource but I'll have always more than 150 lines to display.

Do you have any idea in which case the Wt::WTableView, with the the VirtualModel from the examples as datasource, wouldn't return all rows?

Regards

Beat