ListView 增加 修改 删除 实例

【dialog.h】

#ifndef DIALOG_H
#define DIALOG_H

#include <QDialog>
#include <QStringListModel>
namespace Ui {
class Dialog;
}

class Dialog : public QDialog
{
    Q_OBJECT

public:
    explicit Dialog(QWidget *parent = 0);
    ~Dialog();

private slots:
    void on_pushButton_clicked();

    void on_pushButton_2_clicked();

    void on_pushButton_3_clicked();

private:
    Ui::Dialog *ui;
    QStringListModel *model;
};

#endif // DIALOG_H

【dialog.cpp】

#include "dialog.h"
#include "ui_dialog.h"

Dialog::Dialog(QWidget *parent) :
    QDialog(parent),
    ui(new Ui::Dialog)
{
    ui->setupUi(this);
    model=new QStringListModel(this);
    QStringList list;
    list <<"cats"<<"dogs"<<"birds";
    model->setStringList(list);
    ui->listView->setModel(model);
    ui->comboBox->setModel(model);
    ui->listView->setEditTriggers(QAbstractItemView::AnyKeyPressed|QAbstractItemView::DoubleClicked);
}

Dialog::~Dialog()
{
    delete ui;
}

void Dialog::on_pushButton_clicked()
{
    //add
    int row = model->rowCount();
    model->insertRows(row,1);
    QModelIndex index = model->index(row);
    ui->listView->setCurrentIndex(index);
    ui->listView->edit(index);
}

void Dialog::on_pushButton_2_clicked()
{
    //insert
    int row = ui->listView->currentIndex().row();
    model->insertRows(row,1);
    QModelIndex index = model->index(row);
    ui->listView->setCurrentIndex(index);
    ui->listView->edit(index);
}

void Dialog::on_pushButton_3_clicked()
{
    //delete
    model->removeRows(ui->listView->currentIndex().row(),1);
}

【界面】

界面