cannot call constructor 'Qstring::Qstring' directly

Here is my code, I am trying to construct a table but nothing so far, I have read and tried everything but can't find a solution yet, if somebody knows what is going on, please help !
the lines in bold are the problem

Code:

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void MainWindow::print2Box(){
 
    QHash<QString, QLineEdit*> hash_entries;
 
    hash_entries["00"] = ui->lineEdit_1;
    hash_entries["10"] = ui->lineEdit_2;
    hash_entries["20"] = ui->lineEdit_3;
    hash_entries["30"] = ui->lineEdit_10;
    hash_entries["40"] = ui->lineEdit_11;
    hash_entries["50"] = ui->lineEdit_12;
    hash_entries["60"] = ui->lineEdit_19;
    hash_entries["70"] = ui->lineEdit_20;
    hash_entries["80"] = ui->lineEdit_21;
 
    hash_entries["01"] = ui->lineEdit_4;
    hash_entries["11"] = ui->lineEdit_5;
    hash_entries["21"] = ui->lineEdit_6;
    hash_entries["31"] = ui->lineEdit_13;
    hash_entries["41"] = ui->lineEdit_14;
    hash_entries["51"] = ui->lineEdit_15;
    hash_entries["61"] = ui->lineEdit_22;
    hash_entries["71"] = ui->lineEdit_23;
    hash_entries["81"] = ui->lineEdit_24;
 
    hash_entries["02"] = ui->lineEdit_7;
    hash_entries["12"] = ui->lineEdit_8;
    hash_entries["22"] = ui->lineEdit_9;
    hash_entries["32"] = ui->lineEdit_16;
    hash_entries["42"] = ui->lineEdit_17;
    hash_entries["52"] = ui->lineEdit_18;
    hash_entries["62"] = ui->lineEdit_25;
    hash_entries["72"] = ui->lineEdit_26;
    hash_entries["82"] = ui->lineEdit_27;
 
    hash_entries["03"] = ui->lineEdit_28;
    hash_entries["13"] = ui->lineEdit_29;
    hash_entries["23"] = ui->lineEdit_30;
    hash_entries["33"] = ui->lineEdit_37;
    hash_entries["43"] = ui->lineEdit_38;
    hash_entries["53"] = ui->lineEdit_39;
    hash_entries["63"] = ui->lineEdit_46;
    hash_entries["73"] = ui->lineEdit_47;
    hash_entries["83"] = ui->lineEdit_48;
 
    hash_entries["04"] = ui->lineEdit_31;
    hash_entries["14"] = ui->lineEdit_32;
    hash_entries["24"] = ui->lineEdit_33;
    hash_entries["34"] = ui->lineEdit_40;
    hash_entries["44"] = ui->lineEdit_41;
    hash_entries["54"] = ui->lineEdit_42;
    hash_entries["64"] = ui->lineEdit_49;
    hash_entries["74"] = ui->lineEdit_50;
    hash_entries["84"] = ui->lineEdit_51;
 
    hash_entries["05"] = ui->lineEdit_34;
    hash_entries["15"] = ui->lineEdit_35;
    hash_entries["25"] = ui->lineEdit_36;
    hash_entries["35"] = ui->lineEdit_43;
    hash_entries["45"] = ui->lineEdit_44;
    hash_entries["55"] = ui->lineEdit_45;
    hash_entries["65"] = ui->lineEdit_52;
    hash_entries["75"] = ui->lineEdit_53;
    hash_entries["85"] = ui->lineEdit_54;
 
    hash_entries["06"] = ui->lineEdit_55;
    hash_entries["16"] = ui->lineEdit_56;
    hash_entries["26"] = ui->lineEdit_57;
    hash_entries["36"] = ui->lineEdit_64;
    hash_entries["46"] = ui->lineEdit_65;
    hash_entries["56"] = ui->lineEdit_66;
    hash_entries["66"] = ui->lineEdit_73;
    hash_entries["76"] = ui->lineEdit_74;
    hash_entries["86"] = ui->lineEdit_75;
 
    hash_entries["07"] = ui->lineEdit_58;
    hash_entries["17"] = ui->lineEdit_59;
    hash_entries["27"] = ui->lineEdit_60;
    hash_entries["37"] = ui->lineEdit_67;
    hash_entries["47"] = ui->lineEdit_68;
    hash_entries["57"] = ui->lineEdit_69;
    hash_entries["67"] = ui->lineEdit_76;
    hash_entries["77"] = ui->lineEdit_77;
    hash_entries["87"] = ui->lineEdit_78;
 
    hash_entries["08"] = ui->lineEdit_61;
    hash_entries["18"] = ui->lineEdit_62;
    hash_entries["28"] = ui->lineEdit_63;
    hash_entries["38"] = ui->lineEdit_70;
    hash_entries["48"] = ui->lineEdit_71;
    hash_entries["58"] = ui->lineEdit_72;
    hash_entries["68"] = ui->lineEdit_79;
    hash_entries["78"] = ui->lineEdit_80;
    hash_entries["88"] = ui->lineEdit_81;
 
    for(int y_cord = 0; y_cord < 9; y_cord++){
        for(int x_cord=0; x_cord < 9; x_cord++){
            if(box[x_cord][y_cord] == 0){
                hash_entries[QString::QString("%1%2").arg(x_cord).arg(y_cord)]->setText("");
                hash_entries[QString::QString("%1%2").arg(x_cord).arg(y_cord)]->setDisabled(0);
 
            }
            else{
                hash_entries[QString::QString("%1%2").arg(x_cord).arg(y_cord)]->setText(QString::number(box[x_cord][y_cord]));
                if(disablebox[x_cord][y_cord] == 1){
                    hash_entries[QString::QString("%1%2").arg(x_cord).arg(y_cord)]->setDisabled(1);
                }
            }
        }
 
    }
 
}

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Please embed your code between [CODE ] [/ CODE] tags

As I see, your syntax is wrong.
You have to invoke the constructor of QString as

Code:

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QString("%1%2").arg(x_cord).arg(y_cord)

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And you can't setText() to QHash item.

Quote:

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Originally Posted by rawfool

And you can't setText() to QHash item.

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The hash contains QLineEdit pointers so that is ok.

Cheers,
_