在QML currentIndex TreeView中预置TreeView

Question

我使用QML TreeView列出一些分类选项，供用户选择。

使用属性TreeView.selection，我已将SlectionModel分配给treeview。我在预选这个项目上有问题。使用

treeView.selection.setCurrentIndex(idx,3)

我只设置了选择模型的属性(项目被正确选择/被选中)，但是treeView.currentIndex仍然无效。当使用上/下键时，它将跳到第一项。

我遗漏了什么？

 ItemSelectionModel {
        id: treeViewSelectionModel
        objectName: "treeViewSelectionModel"
        model: myModel
        onCurrentChanged:{console.log("Selectio - current changed from ",previous, " to ", current)}

    }

    TreeView {
        focus: true
        id: treeView
        objectName: "treeView"
        headerVisible: false    //to hide the header

        TableViewColumn {
            title: "Name"
            role: "name"
        }
        model: myModel

        selectionMode: SelectionMode.SingleSelection
        selection: treeViewSelectionModel

        Component.onCompleted: {
            var idx = treeView.model.getPreselected();
            console.log("preselected",idx);
          treeView.selection.setCurrentIndex(idx,ItemSelectionModel.Select);
            treeView.selection = treeView.selection
            //These logged current indexes does not match
            console.log("treeView.currentIndex",treeView.currentIndex);
            console.log("treeView.selection.currentIndex",treeView.selection.currentIndex);

            updateGuiSize();
            treeView.forceActiveFocus();
        }

    }

Answer 1

问题是treeView.currentIndex和treeView.selection.currentIndex不一样。如果要设置treeView.currentIndex的值，则只能通过隐藏变量__listView访问它。

        __listView.currentIndex = idx.row

编辑：我找到了另一个选项

         treeView.__currentRow = idx.row