qtablewidgetitem

Assuming I have a QTableWidgetItem item and I just wanna validate data that users enter. Example, users only enter a number into that item otherwise the program will show a warning dialog. I also search on that document page but I didn’t find similar function with setValidator() function. How can I use a validator for that QTableWidgetItem item? Thanks! Assuming what you really want is to have QValidate -able cells, you could populate the cell with a QLineEdit instance instead. Here's an example that uses QDoubleValidator , but any QValidator will work: QLineEdit *edit = new QLineEdit(ui-

what I want to do is to change the color of a QTableWidget item, when I hover with the mouse over the item of my QTableWidget. Firstly, the table widget needs to have mouse-tracking switched on to get the hover events. Secondly, we need to find some signals that tell us when the mouse enters and leaves the table cells, so that the background colours can be changed at the right times. The QTableWidget class has the cellEntered / itemEntered signals, but there is nothing for when the mouse leaves a cell. So, we will need to create some custom signals to do that. The TableWidget class in the demo

I have custom widget made with qt designer and i want to add it to QTableWidget cell. But it doesn't work. Here is the code : int nRows =10; for(int row = 0; row < nRows;row++;) { QTableWidgetItem* item = new QTableWidgetItem(); CustomWdg* wdg=new CustomWdg( ); mTableWdg->insertRow( row ); mTableWdg->setItem(row, 0, item); mTableWdg->setCellWidget( row, 0, wdg ); } If you want to add custom widget into table cell you can use QItemDelegate. Create your own Delegate class and inherit it from QItemDelegate. class MyDelegate : public QItemDelegate { public: CChoicePathDelegate (QObject *parent = 0