Scroll bars in scroll area not coming

aurora

Hi all,
Using Qt designer i created a Scroll area, and in run, dynamically adding widgets inside it...
But unfortunately, widgets are added but scroll bar not coming...Because of this only few widgets are visible....

I searched in forum, many r unresolved problems...
Please help me to sort out my problem

@
void MainWindow::on_pushButton_clicked()
{
QLabel *label =new QLabel;
label->setText("hello");
ui->verticalLayout->addWidget(label,10);

ui->scrollArea->widgetResizable();

}
@
i set scroll bar policy as always on

p-himik

If i recall correctly "this":http://developer.qt.nokia.com/doc/qt-4.8/qlayout.html#SizeConstraint-enum is what you need.

Eddy

I guess you didn't add a layout in the QScrollArea?

Try adding the widgets to that layout at run time then.

aurora

i added code...plz hav a look...
i added layouts.....

aurora

ya i read that,....and set it "MinAndMaxSize"
[quote author="p-himik" date="1324972866"]If i recall correctly "this":http://developer.qt.nokia.com/doc/qt-4.8/qlayout.html#SizeConstraint-enum is what you need.[/quote]

Eddy

Is verticalLayout inside your scrollarea?

This is how you can do it in Qt Designer:
Add a QScrollArea in your form
Add some labels inside it
Select those labels and add a vertical layout. Remember it's name and add other labels at runtime like you did.

Of course the QScrollArea should be in a layout too, but don't use this one. I guess that is what you do.

aurora

Sorry Eddy, i tried as u told...its not working, displays same as before, scrolling not activated...:(

Eddy

Can you give us your ui file to look at?

aurora

Ya sure Eddy.....below is my ui file code..

@
<?xml version="1.0" encoding="UTF-8"?>
<ui version="4.0">
<class>MainWindow</class>
<widget class="QMainWindow" name="MainWindow">
<property name="geometry">
<rect>
<x>0</x>
<y>0</y>
<width>734</width>
<height>708</height>
</rect>
</property>
<property name="windowTitle">
<string>MainWindow</string>
</property>
<widget class="QWidget" name="centralWidget">
<widget class="QPushButton" name="pushButton">
<property name="geometry">
<rect>
<x>30</x>
<y>150</y>
<width>75</width>
<height>23</height>
</rect>
</property>
<property name="text">
<string>PushButton</string>
</property>
</widget>
<widget class="QScrollArea" name="scrollArea">
<property name="geometry">
<rect>
<x>50</x>
<y>220</y>
<width>291</width>
<height>141</height>
</rect>
</property>
<property name="verticalScrollBarPolicy">
<enum>Qt::ScrollBarAlwaysOn</enum>
</property>
<property name="horizontalScrollBarPolicy">
<enum>Qt::ScrollBarAlwaysOn</enum>
</property>
<property name="widgetResizable">
<bool>true</bool>
</property>
<widget class="QWidget" name="scrollAreaWidgetContents">
<property name="geometry">
<rect>
<x>0</x>
<y>0</y>
<width>272</width>
<height>122</height>
</rect>
</property>
<widget class="QWidget" name="layoutWidget">
<property name="geometry">
<rect>
<x>30</x>
<y>30</y>
<width>24</width>
<height>34</height>
</rect>
</property>
<layout class="QVBoxLayout" name="verticalLayout">
<property name="sizeConstraint">
<enum>QLayout::SetMinAndMaxSize</enum>
</property>
<item>
<widget class="QLabel" name="label">
<property name="text">
<string>label</string>
</property>
</widget>
</item>
<item>
<widget class="QLabel" name="label_2">
<property name="text">
<string>label</string>
</property>
</widget>
</item>
</layout>
</widget>
</widget>
</widget>
<widget class="QWidget" name="verticalLayoutWidget_2">
<property name="geometry">
<rect>
<x>510</x>
<y>250</y>
<width>61</width>
<height>41</height>
</rect>
</property>
<layout class="QVBoxLayout" name="verticalLayout_2">
<property name="sizeConstraint">
<enum>QLayout::SetFixedSize</enum>
</property>
</layout>
</widget>
</widget>
<widget class="QMenuBar" name="menuBar">
<property name="geometry">
<rect>
<x>0</x>
<y>0</y>
<width>734</width>
<height>21</height>
</rect>
</property>
</widget>
<widget class="QToolBar" name="mainToolBar">
<attribute name="toolBarArea">
<enum>TopToolBarArea</enum>
</attribute>
<attribute name="toolBarBreak">
<bool>false</bool>
</attribute>
</widget>
<widget class="QStatusBar" name="statusBar"/>
</widget>
<layoutdefault spacing="6" margin="11"/>
<resources/>
<connections/>
</ui>
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