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Thread: cannot call constructor 'Qstring::Qstring' directly

  1. 4th April 2014, 11:38 #1
    Ludwig
    Ludwig is offline Beginner
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    Default 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

    Qt Code: 
    1. void MainWindow::print2Box(){
    2.  
    3.     QHash<QString, QLineEdit*> hash_entries;
    4.  
    5.     hash_entries["00"] = ui->lineEdit_1;
    6.     hash_entries["10"] = ui->lineEdit_2;
    7.     hash_entries["20"] = ui->lineEdit_3;
    8.     hash_entries["30"] = ui->lineEdit_10;
    9.     hash_entries["40"] = ui->lineEdit_11;
    10.     hash_entries["50"] = ui->lineEdit_12;
    11.     hash_entries["60"] = ui->lineEdit_19;
    12.     hash_entries["70"] = ui->lineEdit_20;
    13.     hash_entries["80"] = ui->lineEdit_21;
    14.  
    15.     hash_entries["01"] = ui->lineEdit_4;
    16.     hash_entries["11"] = ui->lineEdit_5;
    17.     hash_entries["21"] = ui->lineEdit_6;
    18.     hash_entries["31"] = ui->lineEdit_13;
    19.     hash_entries["41"] = ui->lineEdit_14;
    20.     hash_entries["51"] = ui->lineEdit_15;
    21.     hash_entries["61"] = ui->lineEdit_22;
    22.     hash_entries["71"] = ui->lineEdit_23;
    23.     hash_entries["81"] = ui->lineEdit_24;
    24.  
    25.     hash_entries["02"] = ui->lineEdit_7;
    26.     hash_entries["12"] = ui->lineEdit_8;
    27.     hash_entries["22"] = ui->lineEdit_9;
    28.     hash_entries["32"] = ui->lineEdit_16;
    29.     hash_entries["42"] = ui->lineEdit_17;
    30.     hash_entries["52"] = ui->lineEdit_18;
    31.     hash_entries["62"] = ui->lineEdit_25;
    32.     hash_entries["72"] = ui->lineEdit_26;
    33.     hash_entries["82"] = ui->lineEdit_27;
    34.  
    35.     hash_entries["03"] = ui->lineEdit_28;
    36.     hash_entries["13"] = ui->lineEdit_29;
    37.     hash_entries["23"] = ui->lineEdit_30;
    38.     hash_entries["33"] = ui->lineEdit_37;
    39.     hash_entries["43"] = ui->lineEdit_38;
    40.     hash_entries["53"] = ui->lineEdit_39;
    41.     hash_entries["63"] = ui->lineEdit_46;
    42.     hash_entries["73"] = ui->lineEdit_47;
    43.     hash_entries["83"] = ui->lineEdit_48;
    44.  
    45.     hash_entries["04"] = ui->lineEdit_31;
    46.     hash_entries["14"] = ui->lineEdit_32;
    47.     hash_entries["24"] = ui->lineEdit_33;
    48.     hash_entries["34"] = ui->lineEdit_40;
    49.     hash_entries["44"] = ui->lineEdit_41;
    50.     hash_entries["54"] = ui->lineEdit_42;
    51.     hash_entries["64"] = ui->lineEdit_49;
    52.     hash_entries["74"] = ui->lineEdit_50;
    53.     hash_entries["84"] = ui->lineEdit_51;
    54.  
    55.     hash_entries["05"] = ui->lineEdit_34;
    56.     hash_entries["15"] = ui->lineEdit_35;
    57.     hash_entries["25"] = ui->lineEdit_36;
    58.     hash_entries["35"] = ui->lineEdit_43;
    59.     hash_entries["45"] = ui->lineEdit_44;
    60.     hash_entries["55"] = ui->lineEdit_45;
    61.     hash_entries["65"] = ui->lineEdit_52;
    62.     hash_entries["75"] = ui->lineEdit_53;
    63.     hash_entries["85"] = ui->lineEdit_54;
    64.  
    65.     hash_entries["06"] = ui->lineEdit_55;
    66.     hash_entries["16"] = ui->lineEdit_56;
    67.     hash_entries["26"] = ui->lineEdit_57;
    68.     hash_entries["36"] = ui->lineEdit_64;
    69.     hash_entries["46"] = ui->lineEdit_65;
    70.     hash_entries["56"] = ui->lineEdit_66;
    71.     hash_entries["66"] = ui->lineEdit_73;
    72.     hash_entries["76"] = ui->lineEdit_74;
    73.     hash_entries["86"] = ui->lineEdit_75;
    74.  
    75.     hash_entries["07"] = ui->lineEdit_58;
    76.     hash_entries["17"] = ui->lineEdit_59;
    77.     hash_entries["27"] = ui->lineEdit_60;
    78.     hash_entries["37"] = ui->lineEdit_67;
    79.     hash_entries["47"] = ui->lineEdit_68;
    80.     hash_entries["57"] = ui->lineEdit_69;
    81.     hash_entries["67"] = ui->lineEdit_76;
    82.     hash_entries["77"] = ui->lineEdit_77;
    83.     hash_entries["87"] = ui->lineEdit_78;
    84.  
    85.     hash_entries["08"] = ui->lineEdit_61;
    86.     hash_entries["18"] = ui->lineEdit_62;
    87.     hash_entries["28"] = ui->lineEdit_63;
    88.     hash_entries["38"] = ui->lineEdit_70;
    89.     hash_entries["48"] = ui->lineEdit_71;
    90.     hash_entries["58"] = ui->lineEdit_72;
    91.     hash_entries["68"] = ui->lineEdit_79;
    92.     hash_entries["78"] = ui->lineEdit_80;
    93.     hash_entries["88"] = ui->lineEdit_81;
    94.  
    95.     for(int y_cord = 0; y_cord < 9; y_cord++){
    96.         for(int x_cord=0; x_cord < 9; x_cord++){
    97.             if(box[x_cord][y_cord] == 0){
    98.                 hash_entries[QString::QString("%1%2").arg(x_cord).arg(y_cord)]->setText("");
    99.                 hash_entries[QString::QString("%1%2").arg(x_cord).arg(y_cord)]->setDisabled(0);
    100.  
    101.             }
    102.             else{
    103.                 hash_entries[QString::QString("%1%2").arg(x_cord).arg(y_cord)]->setText(QString::number(box[x_cord][y_cord]));
    104.                 if(disablebox[x_cord][y_cord] == 1){
    105.                     hash_entries[QString::QString("%1%2").arg(x_cord).arg(y_cord)]->setDisabled(1);
    106.                 }
    107.             }
    108.         }
    109.  
    110.     }
    111.  
    112. }
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    Last edited by anda_skoa; 7th April 2014 at 09:38. Reason: missing [code] tags
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  2. 4th April 2014, 13:35 #2
    rawfool
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    Default Re: cannot call constructor 'Qstring::Qstring' directly

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

    As I see, your syntax is wrong.
    You have to invoke the constructor of QString as
    Qt Code: 
    1. QString("%1%2").arg(x_cord).arg(y_cord)
    To copy to clipboard, switch view to plain text mode 
    And you can't setText() to QHash item.
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  3. 7th April 2014, 09:40 #3
    anda_skoa
    anda_skoa is offline Administrator
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    Default Re: cannot call constructor 'Qstring::Qstring' directly

    Quote Originally Posted by rawfool View Post
    And you can't setText() to QHash item.
    The hash contains QLineEdit pointers so that is ok.

    Cheers,
    _
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