使用前

槽函数声明void IQCPartNoChoose::selectFun(std::string dbName,  const QString arg1,std::vector<std::string> &vec_rowRes

实现void IQCPartNoChoose::on_lineEdit_textChanged(const QString &arg1)

{

    item_model->clear();

    std::vector<std::string> vec_RowRes1;//接收从db查询出的料号

 //   std::string dbName = PLI_DB;

    PLI_DB_path =  "./Golden\\DB"; //2021/8/23

    //QString sql = "Select Model from Model where model glob '"+arg1+"*'";

    //std::string selectSql = sql.toStdString();

    //selectDBFun(PLI_DB_path,selectSql,vec_RowRes1);、

    selectFun(PLI_DB_path,arg1,vec_RowRes1);

    //如果未输入搜索字符 则显示所有的料号

    if(arg1==""){

        setTable(vec_RowRes);

    }else{

        setTable(vec_RowRes1);

    }

}

//搜索方法 
void IQCPartNoChoose::selectFun(std::string dbName,  const QString arg1,std::vector<std::string> &vec_rowRes){

    QDir snpath(QString::fromStdString(dbName));

    QFileInfoList fileInfoList = snpath.entryInfoList();

    foreach(QFileInfo fileInfo,fileInfoList){

        if(fileInfo.suffix()!="db"){//只需要db文件

            continue;

        }

        int position = arg1.size();//通过搜索框输入的字符 找所有开头一样的文件遍历出来

        QString begin = fileInfo.baseName().mid(0,position);

        if(begin.toUpper()==arg1.toUpper()){

            vec_rowRes.push_back(fileInfo.baseName().toStdString());

        }

    }

    //将拿到的数据进行排序 按照字母 长短

    if(vec_rowRes.size() > 0 )

    {

        sort(vec_rowRes.begin(),vec_rowRes.end());

        vec_rowRes.erase(unique(vec_rowRes.begin(),vec_rowRes.end()),vec_rowRes.end());

    }
}

使用后：会根据字母，数字排序