QTableView中嵌入复选框CheckBox
第二种方法：设置QAbstractTableModel的flags()函数法
通过Delegate创建QCheckBox来实现的Check列，只有在该列进入编辑模式时才能够Check/Uncheck。这显然不是我们想要的，网上翻来翻去，在一个国外论坛中看到了无需Delegate的实现方法，只需重写Model即可：

主要是修改两个函数：
//设置某一列为可选角色，绘画出QCheckBox
Qt::ItemFlags flags(const QModelIndex &index) const;
//根据界面选择QCheckbox，修改Model中的数据
bool setData(const QModelIndex &index, const QVariant &value, int role);

2.在StudentInfoModel .h头文件中的主要代码：   
class StudentInfoModel : public QAbstractTableModel    
{   
    Q_OBJECT   
public:   
    StudentInfoModel(const int totalColumn, const int aColumnNumWithChechBox = 0, QObject *parent = 0)   
    :totalColumn(totalColumn),colNumberWithCheckBox(aColumnNumWithChechBox),   
       
    QAbstractTableModel(parent) {rowCheckStateMap.clear();};   
public:   
    int rowCount(const QModelIndex &parent = QModelIndex()) const;   
    int columnCount(const QModelIndex &parent = QModelIndex()) const;   
    QVariant data(const QModelIndex &index, int role = Qt::DisplayRole) const;   
    QVariant headerData(int section, Qt::Orientation orientation, int role = Qt::DisplayRole) const;   
    Qt::ItemFlags flags(const QModelIndex &index) const;   
    bool setData(const QModelIndex &index, const QVariant &value, int role);   
  
  
public:   
    void AddStudentInfo(const StudentInfo &studentInfo);   
  
  
    signals:   
    void StudentInfoIsChecked(const StudentInfo &studentInfo);   
  
  
private:   
    typedef QVector<StudentInfo> StudentInfos;   
    StudentInfos studentInfos;   
    int totalColumn;   
    int colNumberWithCheckBox;   
    QMap<int, Qt::CheckState> rowCheckStateMap;   
};   
  
  
3.在StudentInfoModel.cpp文件中的主要代码如下：   
QVariant StudentInfoModel::data( const QModelIndex &index, int role ) const  
{   
    if (role == Qt::DisplayRole)    
    {    
        if (index.column() == 0)    
            return QString::number(index.row()+1);    
        if (index.column() == 1)    
            return studentInfos[index.row()].stuNumber;    
        if (index.column() == 2)   
            return studentInfos[index.row()].stuName;    
        if (index.column() == 3)   
            return studentInfos[index.row()].stuID;    
        if (index.column() == 4)   
            return studentInfos[index.row()].stuPhoneNumber;   
        if (index.column() == 5)    
            return studentInfos[index.row()].department;    
        if (index.column() == 6)    
            return studentInfos[index.row()].stuDescription;    
    }    
    if (role == Qt::CheckStateRole)    
    {    
        if (index.column() == colNumberWithCheckBox)    
        {    
            if (rowCheckStateMap.contains(index.row()))    
            return rowCheckStateMap[index.row()] == Qt::Checked ? Qt::Checked : Qt::Unchecked; return Qt::Unchecked;    
        }    
    }    
    return QVariant();   
}   
  
  
Qt::ItemFlags StudentInfoModel::flags( const QModelIndex &index ) const  
{   
    if  
    (!index.isValid())   
    return 0;   
  
  
    if (index.column() == colNumberWithCheckBox)   
    return Qt::ItemIsEnabled | Qt::ItemIsSelectable | Qt::ItemIsUserCheckable;   
  
  
    return  Qt::ItemIsEnabled | Qt::ItemIsSelectable;   
}   
  
  
bool StudentInfoModel::setData( const QModelIndex &index, const QVariant &value, int role )   
{   
    if(!index.isValid())   
        return false;   
    if (role == Qt::CheckStateRole && index.column() == colNumberWithCheckBox)   
    {   
        if (value == Qt::Checked) //   
        {   
            rowCheckStateMap[index.row()] = Qt::Checked;    
            if(studentInfos.size() > index.row())   
            emit StudentInfoIsChecked(studentInfos[index.row()]);   
        }   
        else  
        {   
            rowCheckStateMap[index.row()] = Qt::Unchecked;   
        }    
    }   
    return true;   
}