ExtJs Column 显示文字内容过长使用Tootip显示全部内容

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{

     text: 'Column Header Blah',

    dataIndex: 'blah',

    renderer: function(value, metaData, record, rowIdx, colIdx, store) {

        metaData.tdAttr = 'data-qtip="' + value + '"';

        return value;

    }

}

{

    renderer: function(value, metaData, record, rowIdx, colIdx, store) {

        // Sample value: msimms & Co. "like" putting <code> tags around your code

        value = Ext.String.htmlEncode(value);

        // "double-encode" before adding it as a data-qtip attribute

        metaData.tdAttr = 'data-qtip="' + Ext.String.htmlEncode(value) + '"';

        return value;

    }

}