Question

我有一个带有cellediting插件的gridpanel，并且有很多网格标题（至少使网格显示为水平滚动条）...
这是DEMO ...

我的网格中有一个错误，尝试编辑其中一个错误，然后按Tab键导航到 header15 .. 网格没有滚动到我正在编辑的位置，...
这是一个错误？我们在forum寻找这个，但没有运气..

那么，怎么解决呢？如何让我的网格滚动到活动编辑器？

从文档

，有一种方法scrollByDeltaX，
但如何从活动编辑器中了解delta？

Answer 1

剪短，try demo first：）

（太自由了，想要你的赏金，请奖励我！）

有趣的是，我的回答在4.0.7上运行得很好，但它在4.0.2a上不起作用！毫无头绪，我检查了4.0.2a的来源，并且震惊地看到了这一点：

在src/panel/Table.js（4.0.2a）

中

/**
 * Scrolls the TablePanel by deltaY
 * @param {Number} deltaY
 */
scrollByDeltaY: function(deltaY) {
    var verticalScroller = this.getVerticalScroller();

    if (verticalScroller) {
        verticalScroller.scrollByDeltaY(deltaY);
    }
},

/**
 * Scrolls the TablePanel by deltaX
 * @param {Number} deltaY
 */
scrollByDeltaX: function(deltaX) {
    var horizontalScroller = this.getVerticalScroller();

    if (horizontalScroller) {
        horizontalScroller.scrollByDeltaX(deltaX);
    }
},

注意到什么？签出函数scrollByDeltaX！它的编码错误（在4.0.7中修复）!!!这显然不会有任何视觉反馈。它要求垂直滚动条进行deltaX滚动。怎么会这样？

无论如何，要解决此问题相当容易，以防您不想升级到4.0.7。 Afaik 4.0.7有大量从4.0.6继承的错误，它打破了我的项目与那个怪异的屏蔽问题。

以下是我的工作答案，我希望你会感激。基本上我修改了onEditorTab方法并创建了一个事件挂钩，因此您的grid可以挂钩，并在触发标签时执行scrollByDeltaX。

我不太确定如何最左/右最左侧滚动，所以我的代码中出现了一个有趣的Infinity。

以下是示例： DEMO （请记住尝试SHIFT + TAB）

/**
 * Customized Row Selection Model which will
 * fires "editortab" event when an tabbing occurs
 */
Ext.define('NS.RowModel', {
    extend: 'Ext.selection.RowModel',

    //False to wrap to next row when you tab
    //to the end of a row
    preventWrap: false,

    initComponent: function() {
        /**
         * @event editortab
         * Fires when editor is tabbed
         * @param {RowModel} rowModel this rowmodel
         * @param {Editor} edt The editor
         * @param {string} dir The direction of the tab (left or right)
         * @param {Event} e The event object
         */
        this.addEvents('editortab');
        this.callParent();
    },

    //memorizing which is the last context
    lastEditorContext: null,

    onEditorTab: function(edt, e) {

        //Part of this code is from the original onEditorTab in
        //src/selection/RowModel.js line 416
        var me = this,
            view = me.views[0],
            record = edt.getActiveRecord(),
            header = edt.getActiveColumn(),
            position = view.getPosition(record, header),
            direction = e.shiftKey ? 'left' : 'right',
            newPosition  = view.walkCells(position, direction, e, this.preventWrap);

        //we store the last context, so we know whether the 
        //context has changed or not
        me.lastEditorContext = edt.context;

        //if there is new position, edit; else, complete the edit.
        if (newPosition) {
            edt.startEditByPosition(newPosition);
        }else{
            edt.completeEdit();
        }

        //If context doesn't change, we try to walk
        //to the next one until we find a new edit box (context changed)
        while (me.lastEditorContext === edt.context && newPosition) {
            newPosition = view.walkCells(newPosition, direction, e, this.preventWrap);
            if (newPosition) {
                edt.startEditByPosition(newPosition);
            }
        }

        //Fires the event
        this.fireEvent('editortab', this, edt, direction, e);
    }
});

/**
 * Customized Editor Grid to support tabbing
 */
Ext.define('NS.EditorGrid', {
    extend: 'Ext.grid.Panel',
    initComponent: function() {
        var me = this;

        Ext.applyIf(me, {
            plugins: [Ext.create('Ext.grid.plugin.CellEditing', {
                clicksToEdit: 1
            })],

            selModel: Ext.create('NS.RowModel', {
                listeners: {
                    editortab: {
                        fn: me.onEditorTab,
                        scope: me
                    }
                }
            })
        });

        me.callParent();
    },

    onEditorTab: function(sel, edt, dir, e) {

        var lastRow = sel.lastEditorContext.rowIdx,
            newRow = edt.context.rowIdx,
            deltaX = 0;

        //Let's calculate deltaX first

        //if row changed, we reset the cells to the left most or right most
        if (lastRow != newRow) {
            deltaX = lastRow < newRow ? -Infinity : Infinity;
        }else{
            //else, do deltax :)
            deltaX = edt.context.column.width * (dir == 'right' ? 1 : -1);
        }


        //If you are using 4.0.2a, use this. They have typo in
        //src/panel/Table.js, line 1133
        var horizontalScroller = this.getHorizontalScroller();
        if (horizontalScroller) horizontalScroller.scrollByDeltaX(deltaX);


        //But if you are running 4.0.7, this is fine. Use this:
        //this.scrollByDeltaX(deltaX);
    }
});

//-------------------------------------------------
//Everything below remains :)

Ext.onReady(function() {

    var storeSr=Ext.create('Ext.data.ArrayStore', {
        fields: ["KD_SR","NM_SR"]
    });

    //load data
    var tmpd=[];
    for (i=1;i<=15;i++){
        tmpd.push([i,"nm "+i]);
    }
    storeSr.loadData(tmpd);

    //create column
    col=[]
    col.push({header: "Kode", dataIndex: 'KD_SR'});
    for (j=1;j<=15;j++){
        col.push({
            header: "Header"+j,
            width:100,
            dataIndex: 'NM_SR',
            editor:{xtype:"textfield"}
        });
    }

    var gridSr = Ext.create('NS.EditorGrid', {
        height: 200,
        width: 500,
        store: storeSr,
        columns: col
    });

    //create window
    var winEditSR=Ext.create("Ext.Window",{
        title:"Sub Rayon",
        autoWidth : true,
        autoHeight : true,
        autoShow:true,
        border : false,
        modal : true,
        items : [gridSr]
    }); 
});

我仍然想知道是否有更好的解决方案......也许使用列（header）的x来确定滚动条的scrollLeft，但这会非常生涩...

如何将toTelDeltaX gridpanel滚动到活动编辑器（cellediting）？

1 个答案: