4 files changed, 10 insertions, 9 deletions
diff --git a/src/imports/controls/DialogButtonBox.qml b/src/imports/controls/DialogButtonBox.qml
index 1b783b3b..3c9d5b48 100644
--- a/src/imports/controls/DialogButtonBox.qml
+++ b/src/imports/controls/DialogButtonBox.qml
@@ -41,9 +41,10 @@ T.DialogButtonBox {
     id: control
 
     implicitWidth: Math.max(implicitBackgroundWidth + leftInset + rightInset,
-                            (control.count === 1 ? contentWidth * 2 : contentWidth) + leftPadding + rightPadding)
+                            (control.count === 1 ? implicitContentWidth * 2 : implicitContentWidth) + leftPadding + rightPadding)
     implicitHeight: Math.max(implicitBackgroundHeight + topInset + bottomInset,
-                             contentHeight + topPadding + bottomPadding)
+                             implicitContentHeight + topPadding + bottomPadding)
+    contentWidth: contentItem.contentWidth
 
     spacing: 1
     padding: 12
diff --git a/src/imports/controls/universal/DialogButtonBox.qml b/src/imports/controls/universal/DialogButtonBox.qml
index ac2dc541..0458c39d 100644
--- a/src/imports/controls/universal/DialogButtonBox.qml
+++ b/src/imports/controls/universal/DialogButtonBox.qml
@@ -43,9 +43,10 @@ T.DialogButtonBox {
     id: control
 
     implicitWidth: Math.max(implicitBackgroundWidth + leftInset + rightInset,
-                            (control.count === 1 ? contentWidth * 2 : contentWidth) + leftPadding + rightPadding)
+                            (control.count === 1 ? implicitContentWidth * 2 : implicitContentWidth) + leftPadding + rightPadding)
     implicitHeight: Math.max(implicitBackgroundHeight + topInset + bottomInset,
-                             contentHeight + topPadding + bottomPadding)
+                             implicitContentHeight + topPadding + bottomPadding)
+    contentWidth: contentItem.contentWidth
 
     spacing: 4
     padding: 24
diff --git a/src/quicktemplates2/qquickcontainer.cpp b/src/quicktemplates2/qquickcontainer.cpp
index c4af6151..2c357f82 100644
--- a/src/quicktemplates2/qquickcontainer.cpp
+++ b/src/quicktemplates2/qquickcontainer.cpp
@@ -793,6 +793,7 @@ void QQuickContainer::setContentWidth(qreal width)
         return;
 
     d->contentWidth = width;
+    d->resizeContent();
     emit contentWidthChanged();
 }
 
@@ -832,6 +833,7 @@ void QQuickContainer::setContentHeight(qreal height)
         return;
 
     d->contentHeight = height;
+    d->resizeContent();
     emit contentHeightChanged();
 }
 
diff --git a/src/quicktemplates2/qquickdialogbuttonbox.cpp b/src/quicktemplates2/qquickdialogbuttonbox.cpp
index 8559ad15..03f5f8e8 100644
--- a/src/quicktemplates2/qquickdialogbuttonbox.cpp
+++ b/src/quicktemplates2/qquickdialogbuttonbox.cpp
@@ -241,11 +241,8 @@ void QQuickDialogButtonBoxPrivate::resizeContent()
         return;
 
     QRectF geometry = q->boundingRect().adjusted(q->leftPadding(), q->topPadding(), -q->rightPadding(), -q->bottomPadding());
-    if (alignment != 0) {
-        qreal cw = (alignment & Qt::AlignHorizontal_Mask) == 0 ? q->availableWidth() : contentItem->property("contentWidth").toReal();
-        qreal ch = (alignment & Qt::AlignVertical_Mask) == 0 ? q->availableHeight() : contentItem->property("contentHeight").toReal();
-        geometry = alignedRect(q->isMirrored() ? Qt::RightToLeft : Qt::LeftToRight, alignment, QSizeF(cw, ch), geometry);
-    }
+    if (alignment != 0)
+        geometry = alignedRect(q->isMirrored() ? Qt::RightToLeft : Qt::LeftToRight, alignment, QSizeF(contentWidth, contentHeight), geometry);
 
     contentItem->setPosition(geometry.topLeft());
     contentItem->setSize(geometry.size());