void MainWidget::TableWidgetListDataFunc() // tablewidget表格控件初始化操作
{// 编号 名称 数量 单价 供应商家 负责人 入库时间 出库时间 备注// 设置表格控件200行9列ui->tableWidget_ListData->setColumnCount(9);ui->tableWidget_ListData->setRowCount(200);// 设置表格控件字体大小ui->tableWidget_ListData->setFont(QFont("宋体",13));// 设置表格控件标题（表头）ui->tableWidget_ListData->setHorizontalHeaderLabels(QStringList()<<"编号"<<"名称"<<"数量"<<"单价"<<"供应商家"<<"负责人"<<"入库时间"<<"出库时间"<<"备注");
}

 

void MainWidget::InitTableWidgetFunc() // 初始化表格控件列宽度
{ui->tableWidget_ListData->setColumnWidth(0,80);ui->tableWidget_ListData->setColumnWidth(1,150);ui->tableWidget_ListData->setColumnWidth(2,80);ui->tableWidget_ListData->setColumnWidth(3,80);ui->tableWidget_ListData->setColumnWidth(4,300);ui->tableWidget_ListData->setColumnWidth(5,80);ui->tableWidget_ListData->setColumnWidth(6,250);ui->tableWidget_ListData->setColumnWidth(7,250);ui->tableWidget_ListData->setColumnWidth(8,180);// SQL查询语句QSqlQuery  sqlquery;sqlquery.exec("select *from commoditydatatable");int i=0;while(sqlquery.next()){// 将数据库里面的数据表读取出来转换成对应的字符串,赋给对应字符串变量QString strId=sqlquery.value(0).toString();QString strName=sqlquery.value(1).toString();QString strAmoumt=sqlquery.value(2).toString();QString strUnitPrice=sqlquery.value(3).toString();QString strSupplier=sqlquery.value(4).toString();QString strDirector=sqlquery.value(5).toString();QString strWareHouseTime=sqlquery.value(6).toString();QString strDeliveryTime=sqlquery.value(7).toString();QString strRemarks=sqlquery.value(8).toString();// 将字符串显示到表格控件当中ui->tableWidget_ListData->setItem(i,0,new QTableWidgetItem(strId));ui->tableWidget_ListData->setItem(i,1,new QTableWidgetItem(strName));ui->tableWidget_ListData->setItem(i,2,new QTableWidgetItem(strAmoumt));ui->tableWidget_ListData->setItem(i,3,new QTableWidgetItem(strUnitPrice));ui->tableWidget_ListData->setItem(i,4,new QTableWidgetItem(strSupplier));ui->tableWidget_ListData->setItem(i,5,new QTableWidgetItem(strDirector));ui->tableWidget_ListData->setItem(i,6,new QTableWidgetItem(strWareHouseTime));ui->tableWidget_ListData->setItem(i,7,new QTableWidgetItem(strDeliveryTime));ui->tableWidget_ListData->setItem(i,8,new QTableWidgetItem(strRemarks));i++;}

//数据查询 

void MainWidget::on_pushButton_DataSearch_clicked()
{// 表格控件初始化InitTableWidgetFunc();// 先清除表格控件数据ui->tableWidget_ListData->clear();QSqlQuery sqlquery;QString strid="StockId=";strid=strid+ui->lineEdit_GoodsNumber->text();// SQL查询语句QString str=QString("select *from commoditydatatable where %1").arg(strid);sqlquery.exec(str);// 设置表格控件标题（表头）ui->tableWidget_ListData->setHorizontalHeaderLabels(QStringList()<<"编号"<<"名称"<<"数量"<<"单价"<<"供应商家"<<"负责人"<<"入库时间"<<"出库时间"<<"备注");int i=0;while(sqlquery.next()){// 将数据库里面的数据表读取出来转换成对应的字符串,赋给对应字符串变量QString strId=sqlquery.value(0).toString();QString strName=sqlquery.value(1).toString();QString strAmoumt=sqlquery.value(2).toString();QString strUnitPrice=sqlquery.value(3).toString();QString strSupplier=sqlquery.value(4).toString();QString strDirector=sqlquery.value(5).toString();QString strWareHouseTime=sqlquery.value(6).toString();QString strDeliveryTime=sqlquery.value(7).toString();QString strRemarks=sqlquery.value(8).toString();// 将字符串显示到表格控件当中ui->tableWidget_ListData->setItem(i,0,new QTableWidgetItem(strId));ui->tableWidget_ListData->setItem(i,1,new QTableWidgetItem(strName));ui->tableWidget_ListData->setItem(i,2,new QTableWidgetItem(strAmoumt));ui->tableWidget_ListData->setItem(i,3,new QTableWidgetItem(strUnitPrice));ui->tableWidget_ListData->setItem(i,4,new QTableWidgetItem(strSupplier));ui->tableWidget_ListData->setItem(i,5,new QTableWidgetItem(strDirector));ui->tableWidget_ListData->setItem(i,6,new QTableWidgetItem(strWareHouseTime));ui->tableWidget_ListData->setItem(i,7,new QTableWidgetItem(strDeliveryTime));ui->tableWidget_ListData->setItem(i,8,new QTableWidgetItem(strRemarks));}
}