Delete a row from gridLayout
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Hi,
Does anyone know how to delete a row from gridlayout. The row int the gridlayout contains widgets.
Deepak
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This should do what you want:
@
QGridLayout* gridLayout;
for(int c = 0; c < gridLayout->columnCount(); ++c)
{
QLayoutItem* item = gridLayout->itemAtPosition( row, c );
QWidget* itemWIdget = item->widget();
if( itemWidget )
{
gridLayout->removeWidget(itemWidget);
delete itemWidget; //not sure if you want that?
}
}
@ -
Hi,
Thanks .I could do deletion.
But the row count of gridLayout is not decreasing. When i print the row count of gridLayout before deletion and after deletion they are same. May i know why is it?Deepak
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because that's the concept/implementation of QGridLayout class.
You must explicitly specify the row and column when you add a item. And it will remain at it's position no matter if a preceding widget was removed, the grid itself stays the same. -
Ok. Thanks.
Deepak
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hi,
Is there any method to clear all the elements of gridlayout. A single line command as we clear a Qlist with the clear command.
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no i am aware of... but removing all widgets form a QGridLayout is even simplier:
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while( gridLayout->count() ) {
QWidget* widget = gridLayout->itemAt(0)->widget();
if( widget ) {
layout->removeWidget(widget);
delete widget;
}
}
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But if we delete like the above, the row count of grid layout doesnot decrease. Is there any where when i delete the elements from a row of the gridlayout and the row count of the gridlayout also decrease.
