Flex DataGrid Header 列分隔符

Question

我正在使用 mx:DataGrid（在 Halo 主题中），header 列 separators/vertical 网格线颜色。有谁知道如何 customize/change 线条颜色？

谢谢！

--萌

Answer 1

Datagrid 有两种样式 horizontalSeparatorSkin and verticalSeparatorSkin 您可以覆盖它们。看来你需要覆盖后者。

<mx:DataGrid id="grid" verticalGridLines="true" verticalSeparatorSkin="{VerticalSeparatorSkin}">
        <mx:columns>
            <mx:DataGridColumn dataField="lbl" />
            <mx:DataGridColumn dataField="val"/>
        </mx:columns>
    </mx:DataGrid>

现在您可以将此 class 写为：

public class VerticalSeparatorSkin extends ProgrammaticSkin
    {
        public function VerticalSeparatorSkin()
        {
            super();
        }

        override protected function updateDisplayList(unscaledWidth:Number, unscaledHeight:Number):void
        {
            // draw a line at the bottom of the rectangle defined by
            // unscaledWidth and unscaledHeight
            var g:Graphics = this.graphics;
            g.clear();
            g.lineStyle(3, 0x00FF00); // change thickness / color here
            g.moveTo(0,unscaledWidth);
            g.lineTo(unscaledWidth, unscaledHeight);
        }
    }

这应该可以完成工作。另一种选择是自定义数据网格本身。

public class MyCustomGrid extends DataGrid
    {
        public function MyCustomGrid()
        {
            super();
        }

        override protected function drawVerticalLine(s:Sprite, colIndex:int, color:uint, x:Number):void
        {
            var contentHolder:ListBaseContentHolder = s.parent.parent as ListBaseContentHolder;
            var g:Graphics = s.graphics;
            g.lineStyle(3, color); // change the thickness here
            g.moveTo(x, 0);
            g.lineTo(x, contentHolder.height);
        }
    }

然后可以用它代替常规 DataGrid。

Flex DataGrid Header 列分隔符

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