Freezing text controls when I try to modify text from c++

[neda]

I think I'd better complete code here.

I have 5 text field control and one tableview.

User can add row to tableview (contain 12 column (prop6 - 16 and image)).
I must save data (all row of tableview and text of 5 controls and one image) in XML file,
and when I open XML file, it shows data in tableview and text controls.

QML Text controls (propery 1 -5) is freezing for 6 second when I try to modify text from c++.

I have no idea how to write code for this process.

My XML file:

<?xml version="1.0" standalone="yes"?>
<NewDataSet>
  <header prop1="..." prop2="..." prop3="..." prop4="..." prop5="..." />
 
  <record prop6=".." prop7=".." prop8="..." prop9=".." prop10=".." prop11=".." prop12="..." prop13="..." prop14=..." prop15="..." prop16="..." image="iVBORw0KGgoAAtKdOq1aPGLd/Y8QAQEprZ1a7P3oLIBAIgBRIRtcI8w/ ...." />
  <record prop6=".." prop7=".." prop8="..." prop9=".." prop10=".." prop11=".." prop12="..." prop13="..." prop14=..." prop15="..." prop16="..." image="iVBORw0KGgoAAtKdOq1aPGLd/Y8QAQEprZ1a7P3oLIBAIgBRIRtcI8w/ ...." />
  .......
  .......
  .......
  <record prop6=".." prop7=".." prop8="..." prop9=".." prop10=".." prop11=".." prop12="..." prop13="..." prop14=..." prop15="..." prop16="..." image="iVBORw0KGgoAAtKdOq1aPGLd/Y8QAQEprZ1a7P3oLIBAIgBRIRtcI8w/ ...." />
</NewDataSet>

<?xml version="1.0" standalone="yes"?>
<NewDataSet>
  <header prop1="..." prop2="..." prop3="..." prop4="..." prop5="..." />
  
  <record prop6=".." prop7=".." prop8="..." prop9=".." prop10=".." prop11=".." prop12="..." prop13="..." prop14=..." prop15="..." prop16="..." image="iVBORw0KGgoAAtKdOq1aPGLd/Y8QAQEprZ1a7P3oLIBAIgBRIRtcI8w/ ...." />
  <record prop6=".." prop7=".." prop8="..." prop9=".." prop10=".." prop11=".." prop12="..." prop13="..." prop14=..." prop15="..." prop16="..." image="iVBORw0KGgoAAtKdOq1aPGLd/Y8QAQEprZ1a7P3oLIBAIgBRIRtcI8w/ ...." />
  .......
  .......
  .......
  <record prop6=".." prop7=".." prop8="..." prop9=".." prop10=".." prop11=".." prop12="..." prop13="..." prop14=..." prop15="..." prop16="..." image="iVBORw0KGgoAAtKdOq1aPGLd/Y8QAQEprZ1a7P3oLIBAIgBRIRtcI8w/ ...." />
</NewDataSet>

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myxml.cpp:

MyXML::MyXML()
{
    newFileName = "";
}
MyXML::MyXML(QString pROPERTY18)
{
    newPROPERTY18 = pROPERTY18;
}
 
QString MyXML::getPROPERTY1() const
{
    return newPROPERTY1;
}
void MyXML::setPROPERTY1(QString pROPERTY1)
{
    if (pROPERTY1 != newPROPERTY1)
    {
        newPROPERTY1 = pROPERTY1;
        emit pROPERTY1Changed(pROPERTY1);
    }
}
..
..
..
..
..
 
QString MyXML::getPROPERTY18() const
{
    return newPROPERTY18;
}
void MyXML::setPROPERTY18(QString pROPERTY18)
{
    if (pROPERTY18 != newPROPERTY18)
    {
        newPROPERTY18 = pROPERTY18;
        emit pROPERTY18Changed(pROPERTY18);
    }
}
 
void MyXML::saveXMLFile()
{
    QXmlStreamWriter xmlWriter(&file);
    xmlWriter.setAutoFormatting(true);
    xmlWriter.writeStartDocument();
 
    xmlWriter.writeStartElement("NewDataSet");
 
    xmlWriter.writeStartElement("header");
    xmlWriter.writeAttribute("pROPERTY1",newpROPERTY1);
    xmlWriter.writeAttribute("pROPERTY2",newpROPERTY2);
    xmlWriter.writeAttribute("pROPERTY3",newpROPERTY3);
    xmlWriter.writeAttribute("pROPERTY4",newpROPERTY4);
    xmlWriter.writeAttribute("pROPERTY5",newpROPERTY5);
    xmlWriter.writeEndElement();
 
	????? save data of tableview
 
    xmlWriter.writeEndElement();
 
    file.close();
}
}
 
 
void MyXML::readXMLFile()
{
    QFile file(pROPERTY18);
    if (!file.open(QFile::ReadOnly | QFile::Text))
    {
        //qDebug() << "Error: Cannot read file ";
        return;
    }
    QXmlStreamReader reader(file.readAll());
    file.close();
    while(!reader.atEnd()) {
        reader.readNext();
        if (reader.isStartElement()) {
            if (reader.name() == "header") {//After about 6 seconds the text is displayed in controls
                foreach(const QXmlStreamAttribute &attr, reader.attributes()) {
                    if(attr.name().toString() == QLatin1String("pROPERTY1")){
                        setpROPERTY1(attr.value().toString());
                    }
                    else if(attr.name().toString() == QLatin1String("pROPERTY2")){
                        setpROPERTY2(attr.value().toString());
                    }
                    else if(attr.name().toString() == QLatin1String("pROPERTY3")){
                        setpROPERTY3(attr.value().toString());
                    }
                    else if(attr.name().toString() == QLatin1String("pROPERTY4")){
                        setpROPERTY4(attr.value().toString());
                    }
                    else if(attr.name().toString() == QLatin1String("pROPERTY5")){
                        setpROPERTY5(attr.value().toString());
                    }
                }
            }
            else if (reader.name() == "recorde") {
 
			????????? 
 
            }
        }
    }
}

MyXML::MyXML()
{
    newFileName = "";
}
MyXML::MyXML(QString pROPERTY18)
{
    newPROPERTY18 = pROPERTY18;
}

QString MyXML::getPROPERTY1() const
{
    return newPROPERTY1;
}
void MyXML::setPROPERTY1(QString pROPERTY1)
{
    if (pROPERTY1 != newPROPERTY1)
    {
        newPROPERTY1 = pROPERTY1;
        emit pROPERTY1Changed(pROPERTY1);
    }
}
..
..
..
..
..

QString MyXML::getPROPERTY18() const
{
    return newPROPERTY18;
}
void MyXML::setPROPERTY18(QString pROPERTY18)
{
    if (pROPERTY18 != newPROPERTY18)
    {
        newPROPERTY18 = pROPERTY18;
        emit pROPERTY18Changed(pROPERTY18);
    }
}

void MyXML::saveXMLFile()
{
    QXmlStreamWriter xmlWriter(&file);
    xmlWriter.setAutoFormatting(true);
    xmlWriter.writeStartDocument();

    xmlWriter.writeStartElement("NewDataSet");

    xmlWriter.writeStartElement("header");
    xmlWriter.writeAttribute("pROPERTY1",newpROPERTY1);
    xmlWriter.writeAttribute("pROPERTY2",newpROPERTY2);
    xmlWriter.writeAttribute("pROPERTY3",newpROPERTY3);
    xmlWriter.writeAttribute("pROPERTY4",newpROPERTY4);
    xmlWriter.writeAttribute("pROPERTY5",newpROPERTY5);
    xmlWriter.writeEndElement();

	????? save data of tableview
	
    xmlWriter.writeEndElement();

    file.close();
}
}


void MyXML::readXMLFile()
{
    QFile file(pROPERTY18);
    if (!file.open(QFile::ReadOnly | QFile::Text))
    {
        //qDebug() << "Error: Cannot read file ";
        return;
    }
    QXmlStreamReader reader(file.readAll());
    file.close();
    while(!reader.atEnd()) {
        reader.readNext();
        if (reader.isStartElement()) {
            if (reader.name() == "header") {//After about 6 seconds the text is displayed in controls
                foreach(const QXmlStreamAttribute &attr, reader.attributes()) {
                    if(attr.name().toString() == QLatin1String("pROPERTY1")){
                        setpROPERTY1(attr.value().toString());
                    }
                    else if(attr.name().toString() == QLatin1String("pROPERTY2")){
                        setpROPERTY2(attr.value().toString());
                    }
                    else if(attr.name().toString() == QLatin1String("pROPERTY3")){
                        setpROPERTY3(attr.value().toString());
                    }
                    else if(attr.name().toString() == QLatin1String("pROPERTY4")){
                        setpROPERTY4(attr.value().toString());
                    }
                    else if(attr.name().toString() == QLatin1String("pROPERTY5")){
                        setpROPERTY5(attr.value().toString());
                    }
                }
            }
            else if (reader.name() == "recorde") {
			
			????????? 
			
            }
        }
    }
}

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[anda_skoa]

Your comment suggests that you get the freezing when updating the values during XML parsing, but earlier you said it would happen even when not loading from XML?

In any case you will need a model to handle the table, see http://doc.qt.io/qt-5/qtquick-modelv...tractitemmodel

Cheers,
_

[neda]

Your comment suggests that you get the freezing when updating the values during XML parsing, but earlier you said it would happen even when not loading from XML?

_

Yes, it would happen even when not loading from XML.

[anda_skoa]

Ok, very strange.

Can you provide/attach a minimal program that shows the problem?

Cheers,
_

[neda]

Ok, very strange.

Can you provide/attach a minimal program that shows the problem?

_

Thank you.
I figure out my problem.

This problem will happen when I open th file name is not English..
Is there a way to solve this problem?

[ChriD]

What is a "non-English name" ???

[neda]

I mean the file name is not English.

[ChriD]

Thats no serious answer.... A german or italian or french filename will work too.
Do you mean a filename with another charset?

You may try the "decodeName" method on the QFile class

[neda]

You may try the "decodeName" method on the QFile class

Yes,Thank you. my problem is solved.