Updating a QTableWidget through a Dialog

[dragon]

Hello anyone

I have a question
I want to update a QTableWidget through a Dialog is this possible?
When i click with the mouse on a item in the QTableWidget it popup a Dialog.
When i compile everthing works fine but i don't see any item displaying in my Dialog.
I have tried severall options.
See code

void ContactWindow::edit(QTableWidgetItem *item )
{
	if(item != contactTable->currentItem())
	return;
 
	if(item) 
		{
		contactDialog dlg(this);
		if(dlg.exec() == QDialog::Accepted)  
        	dlg.leBedrijf->setText(item->text());
		}
 
 
}

void ContactWindow::edit(QTableWidgetItem *item )
{
	if(item != contactTable->currentItem())
	return;

	if(item) 
		{
		contactDialog dlg(this);
		if(dlg.exec() == QDialog::Accepted)  
        	dlg.leBedrijf->setText(item->text());
		}
			
   	
}

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[vitaly]

1: contactDialog dlg(this);
2: if(dlg.exec() == QDialog::Accepted)
3: dlg.leBedrijf->setText(item->text());

You try to set some dialog properties in the string 3 (see quoted text) after the dialog is executed and closed (string 2) because the dialog is modal. Try the following:

ContactDialog dlg(this);
dlg.setSomeField(item->text());
if (dlg.exec() == QDialog::Accepted) {
    // Do something
}

ContactDialog dlg(this);
dlg.setSomeField(item->text());
if (dlg.exec() == QDialog::Accepted) {
    // Do something
}

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[dragon]

Thanks vitaly for your answer.
The problem is solved.

[GreyGeek]

Hello anyone

I have a question
I want to update a QTableWidget through a Dialog is this possible?
When i click with the mouse on a item in the QTableWidget it popup a Dialog.
When i compile everthing works fine but i don't see any item displaying in my Dialog.
I have tried severall options.
See code

In addition to Vitaly's answer, you could also preset values in controls in the class of the dialog:

#ifndef DLGLOGIN_H
#define DLGLOGIN_H
#include "ui_dlglogin.h"
 
class dlgLogin : public QDialog
{
    Q_OBJECT
 
public:
    Ui::dlgLoginUi dui;
    dlgLogin()
    {
	    // called with 'dlgLogin dlg'.  Only ID and password required
        dui.setupUi(this);
		dui.leUserName->setText("your revid");
		dui.leUserPassword->setText("");
        dui.leUserName->setFocus();
		dui.leUserName->selectAll();
    }
};

#ifndef DLGLOGIN_H
#define DLGLOGIN_H
#include "ui_dlglogin.h"

class dlgLogin : public QDialog
{
    Q_OBJECT

public:
    Ui::dlgLoginUi dui;
    dlgLogin()
    {
	    // called with 'dlgLogin dlg'.  Only ID and password required
        dui.setupUi(this);
		dui.leUserName->setText("your revid");
		dui.leUserPassword->setText("");
        dui.leUserName->setFocus();
		dui.leUserName->selectAll();
    }
};

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then retrieve them like this:

//main.cpp
#include <QApplication>
#include <QSqlDatabase>
#include <QSqlError>
#include <QMessageBox>
 
#include "homestead.h"
#include "dlglogin.h"
#include "wholenamedlg.h"
#ifdef _WIN32  // on Windows
#define DBDRIVER "QOCI"
#define DBHOST "orc1"
#define DBNAME "orc1"
#else // must be on Linux
#define DBDRIVER "QPSQL"
#define DBHOST "localhost"
#define DBNAME "homestead"
#endif
 
int main( int argc, char * argv[] ) {
	QString strRejected = "";
	QApplication app(argc, argv);
	app.setQuitOnLastWindowClosed(false);
	dlgLogin dlg; 
	if( dlg.exec() == QDialog::Accepted ){
		QSqlDatabase hapdb = QSqlDatabase::addDatabase(DBDRIVER);
		hapdb.setHostName(DBHOST);
		hapdb.setDatabaseName(DBNAME);
		hapdb.setUserName(dlg.dui.leUserName->text());
		hapdb.setPassword(dlg.dui.leUserPassword->text());
		if ( hapdb.open() ) {
			homestead ht;
			ht.RevID = dlg.dui.leUserName->text();
			ht.show();
			app.setQuitOnLastWindowClosed(true);
			return app.exec();
		} else { 
			strRejected = QString("The Login was rejected because: %1").arg(hapdb.lastError().text()).toLatin1();
			QMessageBox::information(0,"Login Rejected!",strRejected,
				QMessageBox::Ok,QMessageBox::NoButton,QMessageBox::NoButton);
			return 1;
		}
	} else {
		strRejected = QString("User Canceled the login!").toLatin1();
		QMessageBox::information(0,"Login Rejected!",strRejected,
				QMessageBox::Ok,QMessageBox::NoButton,QMessageBox::NoButton);
		return 2;
	}
}

//main.cpp
#include <QApplication>
#include <QSqlDatabase>
#include <QSqlError>
#include <QMessageBox>

#include "homestead.h"
#include "dlglogin.h"
#include "wholenamedlg.h"
#ifdef _WIN32  // on Windows
#define DBDRIVER "QOCI"
#define DBHOST "orc1"
#define DBNAME "orc1"
#else // must be on Linux
#define DBDRIVER "QPSQL"
#define DBHOST "localhost"
#define DBNAME "homestead"
#endif

int main( int argc, char * argv[] ) {
	QString strRejected = "";
	QApplication app(argc, argv);
	app.setQuitOnLastWindowClosed(false);
	dlgLogin dlg; 
	if( dlg.exec() == QDialog::Accepted ){
		QSqlDatabase hapdb = QSqlDatabase::addDatabase(DBDRIVER);
		hapdb.setHostName(DBHOST);
		hapdb.setDatabaseName(DBNAME);
		hapdb.setUserName(dlg.dui.leUserName->text());
		hapdb.setPassword(dlg.dui.leUserPassword->text());
		if ( hapdb.open() ) {
			homestead ht;
			ht.RevID = dlg.dui.leUserName->text();
			ht.show();
			app.setQuitOnLastWindowClosed(true);
			return app.exec();
		} else { 
			strRejected = QString("The Login was rejected because: %1").arg(hapdb.lastError().text()).toLatin1();
			QMessageBox::information(0,"Login Rejected!",strRejected,
				QMessageBox::Ok,QMessageBox::NoButton,QMessageBox::NoButton);
			return 1;
		}
	} else {
		strRejected = QString("User Canceled the login!").toLatin1();
		QMessageBox::information(0,"Login Rejected!",strRejected,
				QMessageBox::Ok,QMessageBox::NoButton,QMessageBox::NoButton);
		return 2;
	}
}

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