variable in method not initialized?!

[frosch]

hello,
i have a question. i have build kind of a qt
widget, when the widget is constructed the
"createWidget" method is called. in this
method also an attribute of the class is
initialized (the attribute *table).

everything works fine - the widget is displayed.
but when i called a method, which accesses the
attribute "table" (e.g. the method "insertName")
a error appears: the pointer is empty?!

damn, why isn't the pointer stored in the variable
"table"?!

greeting and thanks

void PortCheckboxTable::createWidget(QWidget* parent)
{
    HxPort::createWidget(parent);
 
    table = new QTable(1, 1, baseWidget);
    table->setEnabled(sensitivity);
    table->verticalHeader()->hide();
    table->setLeftMargin(0);
    table->setSorting(false);
    table->setDragEnabled(false);
    table->setSelectionMode(QTable::NoSelection);
    table->setHScrollBarMode(QScrollView::AlwaysOff);
    table->horizontalHeader()->hide();
    table->setTopMargin(0);
    table->setColumnStretchable(0, true);
 
    initTable();
 
    //for(int i = 0; i < 3; i++ )
    //    table->setItem( i, 0, new QCheckTableItem( table, "Check me" ) );
    layout->addWidget(table);
    layout->activate();
    baseWidget->adjustSize();
}
 
void PortCheckboxTable::insertName(const char* name)
{
    if( tableWithMessage ){
        //table->clearCellWidget(0, 0);
        //table->setItem(0, 0, new QCheckTableItem(table, name));
        table->numRows();
        tableWithMessage = 0;
    }
    else
    {
        int newNumRows = table->numRows() + 1;
        table->setNumRows(newNumRows);
        table->setItem( newNumRows - 1, 0, new QCheckTableItem(table, QString(name)));
    }
}

void PortCheckboxTable::createWidget(QWidget* parent)
{
    HxPort::createWidget(parent);

    table = new QTable(1, 1, baseWidget);
    table->setEnabled(sensitivity);
    table->verticalHeader()->hide();
    table->setLeftMargin(0);
    table->setSorting(false);
    table->setDragEnabled(false);
    table->setSelectionMode(QTable::NoSelection);
    table->setHScrollBarMode(QScrollView::AlwaysOff);
    table->horizontalHeader()->hide();
    table->setTopMargin(0);
    table->setColumnStretchable(0, true);

    initTable();

    //for(int i = 0; i < 3; i++ )
    //    table->setItem( i, 0, new QCheckTableItem( table, "Check me" ) );
    layout->addWidget(table);
    layout->activate();
    baseWidget->adjustSize();
}

void PortCheckboxTable::insertName(const char* name)
{
    if( tableWithMessage ){
        //table->clearCellWidget(0, 0);
        //table->setItem(0, 0, new QCheckTableItem(table, name));
        table->numRows();
        tableWithMessage = 0;
    }
    else
    {
        int newNumRows = table->numRows() + 1;
        table->setNumRows(newNumRows);
        table->setItem( newNumRows - 1, 0, new QCheckTableItem(table, QString(name)));
    }
}

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