QStackedwidget stylesheet problem

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I have QStackedwidget in my application, In the first page, i have tablewidget.
i want to set stylesheet for Qtablewidget headerview.
but i can't able to set stylesheet.
I have tried following ways,
this->setStyleSheet(
" QHeaderView::section {"
" background-color: qlineargradient(x1:0, y1:0, x2:0, y2:1,"
" stop:0 #616161, stop: 0.5 #505050,"
" stop: 0.6 #434343, stop:1 #656565);"
" color: white;"
" padding-left: 4px;"
" border: 1px solid #6c6c6c;"
"}");
this->setStyleSheet( QStackedWidget QWidget#page { "
" QHeaderView::section {"
" background-color: qlineargradient(x1:0, y1:0, x2:0, y2:1,"
" stop:0 #616161, stop: 0.5 #505050,"
" stop: 0.6 #434343, stop:1 #656565);"
" color: white;"
" padding-left: 4px;"
" border: 1px solid #6c6c6c;"
"}");
but it is not working.

this->setStyleSheet( QStackedWidget QWidget#page { " //<<<<<<<< Remove '{'
 " QHeaderView::section {"
 " background-color: qlineargradient(x1:0, y1:0, x2:0, y2:1,"
 " stop:0 #616161, stop: 0.5 #505050,"
 " stop: 0.6 #434343, stop:1 #656565);"
 " color: white;"
 " padding-left: 4px;"
 " border: 1px solid #6c6c6c;"
 "}" //<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<< Remove '}'
 "}");

this->setStyleSheet( QStackedWidget QWidget#page { " //<<<<<<<< Remove '{'
 " QHeaderView::section {"
 " background-color: qlineargradient(x1:0, y1:0, x2:0, y2:1,"
 " stop:0 #616161, stop: 0.5 #505050,"
 " stop: 0.6 #434343, stop:1 #656565);"
 " color: white;"
 " padding-left: 4px;"
 " border: 1px solid #6c6c6c;"
 "}" //<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<< Remove '}'
 "}");

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How are you creating the Ui
1. If you are using the designer, then make sure the QWidget's name is correct and the stylesheet is applied to a containing widget.
2. If you are creatig the using code, even then make sure the QWidget's name is correct.
The folloing code works on my windows

Qt Code: Switch view

#include <QtGui>
#include <QApplication>
 
QWidget * createPage(const QString & name)
{
    QTableWidget * tableWidget = new QTableWidget;
    tableWidget->setObjectName(name);
    tableWidget->setRowCount(10);
    tableWidget->setColumnCount(10);
    return tableWidget;
}
 
int main(int argc, char *argv[])
{
    QApplication app(argc, argv);
 
    QStackedWidget stackedWidget;
    stackedWidget.showMaximized();
 
    stackedWidget.addWidget(createPage("Page1"));
    stackedWidget.addWidget(createPage("Page2"));
 
    stackedWidget.setStyleSheet(
     "QStackedWidget QTableWidget#Page1 QHeaderView::section {"
     " background-color: qlineargradient(x1:0, y1:0, x2:0, y2:1,"
     " stop:0 #616161, stop: 0.5 #505050,"
     " stop: 0.6 #434343, stop:1 #656565);"
     " color: white;"
     " padding-left: 4px;"
     " border: 1px solid #6c6c6c;"
     "}"
     "QStackedWidget QTableWidget#Page2 QHeaderView::section {"
     " background-color: qlineargradient(x1:0, y1:0, x2:1, y2:1,"
     " stop:0 #red, stop: 0.5 #green,"
     " stop: 0.6 #green, stop:1 #pink);"
     " color: white;"
     " padding-left: 4px;"
     " border: 1px solid #bule;"
     "}");
 
    stackedWidget.setCurrentIndex(0);
//    stackedWidget.setCurrentIndex(1);
 
    return app.exec();
}

#include <QtGui>
#include <QApplication>
QWidget * createPage(const QString & name)
    QTableWidget * tableWidget = new QTableWidget;
    tableWidget->setObjectName(name);
    tableWidget->setRowCount(10);
    tableWidget->setColumnCount(10);
    return tableWidget;
int main(int argc, char *argv[])
    QApplication app(argc, argv);
    QStackedWidget stackedWidget;
    stackedWidget.showMaximized();
    stackedWidget.addWidget(createPage("Page1"));
    stackedWidget.addWidget(createPage("Page2"));
    stackedWidget.setStyleSheet(
     "QStackedWidget QTableWidget#Page1 QHeaderView::section {"
     " background-color: qlineargradient(x1:0, y1:0, x2:0, y2:1,"
     " stop:0 #616161, stop: 0.5 #505050,"
     " stop: 0.6 #434343, stop:1 #656565);"
     " color: white;"
     " padding-left: 4px;"
     " border: 1px solid #6c6c6c;"
     "QStackedWidget QTableWidget#Page2 QHeaderView::section {"
     " background-color: qlineargradient(x1:0, y1:0, x2:1, y2:1,"
     " stop:0 #red, stop: 0.5 #green,"
     " stop: 0.6 #green, stop:1 #pink);"
     " color: white;"
     " padding-left: 4px;"
     " border: 1px solid #bule;"
     "}");
    stackedWidget.setCurrentIndex(0);
//    stackedWidget.setCurrentIndex(1);
    return app.exec();
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If still it does not work, you better post a small compilable code with the problem