The qtablewidget header cell does not display the separation line

background

Qt Drawing the control style will use the current system style UI Display style .

Problem description

①． summary

QTableWidget Table control in Win10 There is no bottom line between the horizontal and vertical headers under the system , As shown in the figure below ：

②． reason

The reason for this phenomenon is Qt Drawing the control style will use the current system style UI Display style ,Win10 The system table style is as follows ：

Draw separation lines

①． summary

By setting the StyleSheet Draw four boundary lines as needed .

②． Horizontal meter

ui.tableWidget->horizontalHeader()->setStyleSheet(
  "QHeaderView::section{"
  "border-top:0px solid #E5E5E5;"
  "border-left:0px solid #E5E5E5;"
  "border-right:0.5px solid #E5E5E5;"
  "border-bottom: 0.5px solid #E5E5E5;"
  "background-color:white;"
  "padding:4px;"
  "}"
);

③． Vertical header

ui.tableWidget->verticalHeader()->setStyleSheet(
  "QHeaderView::section{"
  "border-top:0.5px solid #E5E5E5;"
  "border-left:0px solid #E5E5E5;"
  "border-right:0.5px solid #E5E5E5;"
  "border-bottom: 0px solid #E5E5E5;"
  "background-color:white;"
  "padding:4px;"
  "}"
);

Set interface style

①．QStyleFactory

QStyleFactory Class is used to create QStyle, Its static method keys You can get all the currently supported interface styles .

for (auto & key : QStyleFactory::keys())
{
    
  qDebug() << key;
}

②． Set interface style

adopt QApplication Of setStyle Method can set the interface display style .

QApplication::setStyle(QStyleFactory::create("Fusion"));