QTableWidget 导出到csv表格

Posted 2020-06-13

  跳槽到了新的公司，开始苦逼的出差现场开发，接触到了新的应用。有很多应用需要将Table导出成表格，可以把table导出成csv格式的文件。跟大伙分享一下；

 

[cpp] view plain copy

 

 

1. lass TableToExcle : public QDialog  
2. {  
3.     Q_OBJECT  
4.   
5. public:  
6.     TableToExcle(QWidget *parent = 0, Qt::WFlags flags = 0);  
7.     ~TableToExcle();  
8.   
9. private:  
10.     Ui::TableToExcleClass ui;  
11.     private slots:  
12.         void addRowSlot();  
13.         void delRowSlot();  
14.         void exportSlot();  
15. };  

 

 

[cpp] view plain copy

 

 

1. TableToExcle::TableToExcle(QWidget *parent, Qt::WFlags flags)  
2.     : QDialog(parent, flags)  
3. {  
4.     ui.setupUi(this);  
5.     ui.m_pTable->setColumnCount(4);  
6.      QTableWidgetItem * item = new QTableWidgetItem("0");   
7.     ui.m_pTable->setHorizontalHeaderItem ( 0, item );  
8.     item = new QTableWidgetItem("1");   
9.     ui.m_pTable->setHorizontalHeaderItem ( 1, item );  
10.     item = new QTableWidgetItem("2");   
11.     ui.m_pTable->setHorizontalHeaderItem ( 2, item );  
12.     item = new QTableWidgetItem("3");   
13.      ui.m_pTable->setHorizontalHeaderItem ( 3, item );  
14.     ui.m_pTable->setSelectionBehavior(QAbstractItemView::SelectRows);  
15.     connect(ui.m_pAddBtn,SIGNAL(clicked()),this,SLOT(addRowSlot()));  
16.     connect(ui.m_pDelBtn,SIGNAL(clicked()),this,SLOT(delRowSlot()));  
17.     connect(ui.m_pExportBtn,SIGNAL(clicked()),this,SLOT(exportSlot()));  
18. }  
19.   
20. TableToExcle::~TableToExcle()  
21. {  
22.   
23. }  
24.   
25. void TableToExcle::addRowSlot()  
26. {  
27.    ui.m_pTable->insertRow(ui.m_pTable->rowCount());  
28.   
29. }  
30.   
31. void TableToExcle::delRowSlot()  
32. {  
33.    int index = ui.m_pTable->currentRow ();  
34.    if (index > -1)  
35.    {  
36.        ui.m_pTable->removeRow(index);  
37.    }  
38. }  
39.   
40. void TableToExcle::exportSlot()  
41. {  
42.     QString fileName = QFileDialog::getSaveFileName(this, tr("Save File")," ",tr("file (*.csv)"));  
43.     if (!fileName.isEmpty())  
44.     {  
45.         QFile file(fileName);  
46.         bool ret = file.open( QIODevice::Truncate | QIODevice::WriteOnly);  
47.         if(!ret)  
48.             return;  
49.   
50.         QTextStream stream(&file);  
51.         QString conTents;                  
52.         QHeaderView * header = ui.m_pTable->horizontalHeader() ;  
53.         if (header)  
54.         {  
55.             for ( int i = 0; i < header->count(); i++ )  
56.             {  
57.                 QTableWidgetItem *item = ui.m_pTable->horizontalHeaderItem(i);  
58.                 if (!item)  
59.                 {  
60.                     continue;  
61.                 }  
62.                 conTents += item->text() + ",";  
63.             }  
64.             conTents += "\n";  
65.         }  
66.   
67.         for ( int i = 0 ; i < ui.m_pTable->rowCount(); i++ )  
68.         {  
69.             for ( int j = 0; j < ui.m_pTable->columnCount(); j++ )  
70.             {  
71.   
72.                 QTableWidgetItem* item = ui.m_pTable->item(i, j);  
73.                 if ( !item )  
74.                     continue;  
75.                 QString str = item->text();  
76.                 str.replace(","," ");  
77.                 conTents += str + ",";  
78.             }  
79.             conTents += "\n";  
80.         }  
81.         stream << conTents;  
82.         file.close();  
83.     }  
84.     if( QMessageBox::Yes == QMessageBox::information(0,QObject::tr("文件导出"),QString("文件导出成功,是否打开该文件？"),QMessageBox::Yes,QMessageBox::No) )  
85.     {  
86.    
87.         QSettings settings("HKEY_LOCAL_MACHINE\\Software\\Microsoft\\Office",QSettings::NativeFormat);   
88.         QString szDefault, szPath;  
89.         bool bSuccess;  
90.         szPath = settings.value("12.0/Excel/InstallRoot/Path").toString();  
91.         if (szPath.isEmpty())  
92.             szPath = settings.value("11.0/Excel/InstallRoot/Path").toString();  
93.         if (szPath.isEmpty())  
94.             szPath = settings.value("10.0/Excel/InstallRoot/Path").toString();  
95.         if (szPath.isEmpty())  
96.             szPath = settings.value("9.0/Excel/InstallRoot/Path").toString();  
97.         if (szPath.isEmpty())  
98.             szPath = settings.value("14.0/Excel/InstallRoot/Path").toString();  
99.   
100.         if (szPath.isEmpty())  
101.         {  
102.             QMessageBox::information(0, "提示", "系统没有安装Office, 不能查看故障报告,请您先安装Microsoft Office.");  
103.             return;  
104.         }  
105.   
106.         QProcess * proce = new QProcess;  
107.         QString szExcelexe = szPath + "excel.exe";  
108.         QString szopen = "/safe";  
109.         QString szDoc = fileName;  
110.         QStringList list;  
111.         list<<szDoc;  
112.         if( proce )  
113.         {  
114.             proce->start(szExcelexe,list);  
115.              proce->waitForStarted(5000);        //需要等待完成启动  
116.         }<pre name="code" class="cpp">               delete proce;  

 

http://blog.csdn.net/hai200501019/article/details/37538591