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Forum Update on Monday, May 27th 2025

TableView row height

Scheduled Pinned Locked Moved QML and Qt Quick
tableviewheightrowdelegate
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  • M morte

    @th.thielemann
    I don't want to redefine rowDelegate, i want get height from it (since it differs depending on platform and pixel density).
    Question become: how to access rowDelegate's height property?

    p3c0P Offline
    p3c0P Offline
    p3c0
    Moderators
    wrote on last edited by
    #6

    @morte Since there is no other way, for now, you can use private properties.

    console.log(tableview.__currentRowItem.height) 
    //tableview = id of TableView
    

    157

    1 Reply Last reply
    1
    • M Offline
      M Offline
      morte
      wrote on last edited by morte
      #7

      @p3c0
      I get actual height value, but first row in view not draws after that, i don't know why yet.

      TableView {
      	id: view
      	property int row_height
          anchors.fill: parent
      	section.delegate: section_delegate
           Component.onCompleted {
              currentRow = 0;
              row_height = ____currentRowItem.height;
           }
      }
      
      Component {
      	id: section_delegate
      	Rectangle {
      		width: view.width
      		height: view.row_height
      	}
      }
      
      p3c0P 1 Reply Last reply
      0
      • M morte

        @p3c0
        I get actual height value, but first row in view not draws after that, i don't know why yet.

        TableView {
        	id: view
        	property int row_height
            anchors.fill: parent
        	section.delegate: section_delegate
             Component.onCompleted {
                currentRow = 0;
                row_height = ____currentRowItem.height;
             }
        }
        
        Component {
        	id: section_delegate
        	Rectangle {
        		width: view.width
        		height: view.row_height
        	}
        }
        
        p3c0P Offline
        p3c0P Offline
        p3c0
        Moderators
        wrote on last edited by
        #8

        @morte Can you explain with an example what you are trying to do ?

        157

        M 1 Reply Last reply
        0
        • p3c0P p3c0

          @morte Can you explain with an example what you are trying to do ?

          M Offline
          M Offline
          morte
          wrote on last edited by
          #9

          @p3c0
          There is TableView with my section delegate and i want to set section delegate's height same as height of rows in view.

          p3c0P 1 Reply Last reply
          0
          • M morte

            @p3c0
            There is TableView with my section delegate and i want to set section delegate's height same as height of rows in view.

            p3c0P Offline
            p3c0P Offline
            p3c0
            Moderators
            wrote on last edited by
            #10

            @morte You will need to set current item in TableView. You can do this by using currentRow of TableView.

            Component.onCompleted: tableView.currentRow = 0
            

            157

            M 2 Replies Last reply
            0
            • p3c0P p3c0

              @morte You will need to set current item in TableView. You can do this by using currentRow of TableView.

              Component.onCompleted: tableView.currentRow = 0
              
              M Offline
              M Offline
              morte
              wrote on last edited by
              #11

              @p3c0
              Thats it, thanks!

              1 Reply Last reply
              0
              • p3c0P p3c0

                @morte You will need to set current item in TableView. You can do this by using currentRow of TableView.

                Component.onCompleted: tableView.currentRow = 0
                
                M Offline
                M Offline
                morte
                wrote on last edited by morte
                #12

                @p3c0
                I have just tested it: anyway setting
                Component.onCompleted: tableView.currentRow = 0
                in view gives incorrect behavior of view

                p3c0P 1 Reply Last reply
                0
                • M morte

                  @p3c0
                  I have just tested it: anyway setting
                  Component.onCompleted: tableView.currentRow = 0
                  in view gives incorrect behavior of view

                  p3c0P Offline
                  p3c0P Offline
                  p3c0
                  Moderators
                  wrote on last edited by
                  #13

                  @morte Do you get the height properly after setting currentRow ?

                  157

                  M 1 Reply Last reply
                  0
                  • p3c0P p3c0

                    @morte Do you get the height properly after setting currentRow ?

                    M Offline
                    M Offline
                    morte
                    wrote on last edited by morte
                    #14

                    @p3c0
                    I get actual height value, but first row in view not draws after that, i don't know why yet.

                    TableView {
                    	id: view
                    	property int row_height
                        anchors.fill: parent
                    	section.delegate: section_delegate
                         Component.onCompleted {
                            currentRow = 0;
                            row_height = __currentRowItem.height;
                         }
                    }
                    
                    Component {
                    	id: section_delegate
                    	Rectangle {
                    		width: view.width
                    		height: view.row_height
                    	}
                    }
                    
                    p3c0P 1 Reply Last reply
                    0
                    • M morte

                      @p3c0
                      I get actual height value, but first row in view not draws after that, i don't know why yet.

                      TableView {
                      	id: view
                      	property int row_height
                          anchors.fill: parent
                      	section.delegate: section_delegate
                           Component.onCompleted {
                              currentRow = 0;
                              row_height = __currentRowItem.height;
                           }
                      }
                      
                      Component {
                      	id: section_delegate
                      	Rectangle {
                      		width: view.width
                      		height: view.row_height
                      	}
                      }
                      
                      p3c0P Offline
                      p3c0P Offline
                      p3c0
                      Moderators
                      wrote on last edited by
                      #15

                      @morte What do you mean by not draws ? See if you get updated height inside the Component.

                      157

                      1 Reply Last reply
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