EXTJS 5樹網格自定義行css

Question

我有一個樹形網格，我想改變父行和子行的CSS（在我的情況下背景顏色）。 我做了一些CSS類，並使用viewConfig.getRowClass方法，但它不適用於懸停和選擇。

這裏是我的問題的小提琴：https://fiddle.sencha.com/#fiddle/jl1

這是我的樹格：

var tree = Ext.create('Ext.tree.Panel', { 
    renderTo: Ext.getBody(), 
    title: 'TreeGrid', 
    rootVisible: false, 
    width: 300, 
    height: 250, 
    store: store, 

    viewConfig: { 
     getRowClass: function(record, index) { 
      if (record.get('name').indexOf('Group') != -1) { 
       return 'row-parent'; 
      } 
      return 'row-child'; 
     } 
    }, 

    columns: [{ 
     xtype: 'treecolumn', 
     text: 'Name', 
     dataIndex: 'name', 
     width: 150 
    }, { 
     text: 'Description', 
     dataIndex: 'description',   
     width: 150 
    }] 
}); 

這是我的CSS：

.row-parent .x-grid-cell {  
    background-color: #c1ddf1 !important; 
} 
.row-parent .x-grid-row-over .x-grid-cell { 
    background-color: #3da5f5 !important; 
} 
.row-parent .x-grid-row-selected .x-grid-cell { 
    background-color: #ff0 !important; 
} 

.row-child .x-grid-cell { 
    background-color: #e2eff8 !important; 
} 
.row-child .x-grid-row-over .x-grid-cell { 
    background-color: #85c4f5 !important; 
} 
.row-child .x-grid-row-selected .x-grid-cell { 
    background-color: #ff0 !important; 
} 

你知道爲什麼選擇和懸停CSS不起作用？

在此先感謝=）！

Answer 1

.row-parent .x-grid-cell { 
    background-color: #c1ddf1 !important; 
} 
.x-grid-item-over .row-parent .x-grid-cell { 
    background-color: #3da5f5 !important; 
} 
.x-grid-item-selected .row-parent .x-grid-cell { 
    background-color: #ff0 !important; 
} 

.row-child .x-grid-cell { 
    background-color: #e2eff8 !important; 
} 
.x-grid-item-over .row-child .x-grid-cell { 
    background-color: #85c4f5 !important; 
} 
.x-grid-item-selected .row-child .x-grid-cell { 
    background-color: #ff0 !important; 
}