Simple error :P

I've created a form named startno. Inside I have a QLineEdit object named line. I would like to change text in this field by writing code into startno.ui.h.

If I use it inside a function (like after button click) it works ok. Working example:

Code:

---

void startno::changeso_clicked()
{
    line->setText("test1"); 
}

---

If I try to write text to that field outside of any function I get an error. Non-working example:

Code:

---

line->setText("test1");

---

I know I can set this text in property editor. But I would like to find a solution for this for future :)

This is really a C++ issue. You have to follow C++ rules for accessing objects. If "line" is a member of class "startno" you have to access it using an object of class "startno" and not as a "hanging in void" object "line".

maybe it will help you if you set the text in the constructor of the form (at the ui.h file it is the init() function), simply create it :)

Code:

---

void startno::init()
{
    line->setText("test1"); 
}

---

then your text will be set upon creation of the form.

Or . U could use the designer to set the text initially.

Generally It's good not to use the ui.h approach, rather use the subclassing one.

U will find help on this approach in the designers man pages.

under the section Subclassing and Dynamic Dialogs