TableView QtQuick 2.12 did not fill Layout (dont fill anything at all)

SergeyK12

Hi, i'm starting to investigate qml and get the following problem.
When i'm trying to use TableView from quick 2
it didnt fill window! Filling perfectly work on buttons and other object in examples, but not table!
What i doing wrong?
Here is qml example with my own model

import QtQuick 2.12
import MyModule 1.0
import QtQuick.Window 2.12
import QtQuick.Layouts 1.12
import QtQuick.Controls 2.5

ApplicationWindow {	
    visible: true
    width: 1000
    height: 250
	
    ColumnLayout {
	id:mainLayout
        anchors.fill: parent

	TableView {	
		anchors.fill: parent
		Layout.fillWidth: true
		Layout.fillWidth: true
		columnSpacing: 0
		rowSpacing: 0
		clip: true
		model: StandardModel {}
		
		delegate: Rectangle {
			implicitWidth: parent.width/4;
			implicitHeight: 50
			border.color: "blue"
			border.width: 1
			color: (heading==true) ? "red" : "green"
			Text {
				text: tabledata
				font.pointSize: 12
				anchors.centerIn: parent
			}
		}
	}
}

Here is what i'm talking about. When i change window table didnt changed

raven-worx

@SergeyK12
https://doc-snapshots.qt.io/qt5-5.12/qml-qtquick-tableview.html#columnWidthProvider-prop

SergeyK12

Thanks for your response.
I almost try it and it isnt worked

TableView {	
    anchors.fill: parent
    Layout.fillWidth: true
    columnWidthProvider: function (column) { return mainLayout.width/4 }
    rowHeightProvider  : function (row) { return mainLayout.height/3 }

Yep, its calc width in the beggining of the programm, but when i changed size of mainwindow nothing changed!
Its not connected with mainLayout.width value (but it is changed)

And thats happend if i chnge main window size faster (width and height of table cells are different)

raven-worx

@SergeyK12
its all in the docs:
https://doc-snapshots.qt.io/qt5-5.12/qml-qtquick-tableview.html#row-heights-and-column-widths

If you change the values that a rowHeightProvider or a columnWidthProvider return for rows and columns inside the viewport, you must call forceLayout. This informs TableView that it needs to use the provider functions again to recalculate and update the layout.

so whenever your width/height changes call forceLayout()

SergeyK12

Thanks! Its worked!