Add new TreeItemWidget using GUI of different class

[sam123]

Hello,
I want to add QTreeWidgetItem using QPussbutton and QlineEdit of different class. here is my code

mainWindow.h

#include <QMainWindow>
#include "name.h"
.
.
.
class MainWindow : public QMainWindow
{
 Q_OBJECT
 
public:
 
 void addNewItemToTree(QTreeWidgetItem *item);
 
private;
 
Ui::MainWindow *ui;
 
}

#include <QMainWindow>
#include "name.h"
.
.
.
class MainWindow : public QMainWindow
{
 Q_OBJECT

public:

 void addNewItemToTree(QTreeWidgetItem *item);

private;

Ui::MainWindow *ui;

}

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mainWindow.cpp

#include "mainwindow.h"
.
.
.
void MainWindow::addNewItemToTree(QTreeWidgetItem *item)
{
    ui->treeWidget->setColumncount(1);
    ui->treeWidget->addTopLevelItem(item);
}

#include "mainwindow.h"
.
.
.
void MainWindow::addNewItemToTree(QTreeWidgetItem *item)
{
    ui->treeWidget->setColumncount(1);
    ui->treeWidget->addTopLevelItem(item);
}

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name.h

#include <QWidget>
#include "mainwindow.h"
.
.
.
class Name : public QWidget
{
 Q_OBJECT
 
public:
 
Qstring getName(void);
 
private:
 
void on_Pussbutton_clicked();
 
UI::Name * ui;

#include <QWidget>
#include "mainwindow.h"
.
.
.
class Name : public QWidget
{
 Q_OBJECT

public:

Qstring getName(void);

private:

void on_Pussbutton_clicked();

UI::Name * ui;

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name.cpp

#include "name.h"
.
.
.
QString Name:: getName (void)
{
   return ui->lineEdit->text();
}
 
void Name::on_PussButton_clicked()
{
 
  QTreeWidgetItem *item = new QTreeWidgetItem();
  item->setText(0,getName());
 
 
   MainWindow * mainW;              // use poiter of MainWindow class
   mainW->addNewItemToTree(item);  // add New Item in the fuction of MainWindow
}

#include "name.h"
.
.
.
QString Name:: getName (void)
{
   return ui->lineEdit->text();
}

void Name::on_PussButton_clicked()
{

  QTreeWidgetItem *item = new QTreeWidgetItem();
  item->setText(0,getName());


   MainWindow * mainW;              // use poiter of MainWindow class
   mainW->addNewItemToTree(item);  // add New Item in the fuction of MainWindow
}

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(Code hab been typed so plese ignor smalls mistacks)
I am using these code. After clicking pussbutton item is not added in TreeWidget even I am not getting output either neither error.

looking for your guidance or solution..

Thanks..

[Ginsengelf]

Hi, I think you need to write

private slots:

private slots:

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in line 14 of name.h so that the MOC can see which functions are slots.

Ginsengelf

edit: next time, please copy and paste the code, because something like

MainWindow * mainW;              // use poiter of MainWindow class
   mainW->addNewItemToTree(item);  // add New Item in the fuction of MainWindow

MainWindow * mainW;              // use poiter of MainWindow class
   mainW->addNewItemToTree(item);  // add New Item in the fuction of MainWindow

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will crash, and we don't know which errors are just "small mistakes" and which are actual code.

[sam123]

Thank you for your reply..

sorry, for mistakes and I have already written Private Slots: in name.h line number 14 still it doesnt work..

[d_stranz]

I have already written Private Slots: in name.h

The correct syntax is

private slots:

private slots:

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not

Private Slots:

Private Slots:

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And like the previous poster said, if you want help solving code problems, you must post your actual code, not something that sort of looks like your code but really isn't. How are we supposed to know what is a coding mistake versus what is a typing mistake?

Where is the connect() statement where you connect the QPushButton::clicked() signal to the on_PussButton_clicked() slot? If you did this in Qt Designer, is your button actually named "PussButton"?