table中如何添加file或图片拖拽

[zuiaipeimm]

这是我要做的内容，有一列是图片，不知道如何添加file，如果想要支持拖拽添加该如何做？
下面是表格初始化内容
columns:[[
//<input type="file" multiple id="ssi-upload"/>
{field:'partID',title:'零件ID',width:100,align:'left',sortable:true},
{field:'partNumber',title:'零件编号',width:100,align:'left',sortable:true},
{field:'partName',title:'零件名称',width:120,align:'left',sortable:true},
{field:'desc',title:'问题描述',width:150,align:'left',sortable:true,editor:{type:'text',options:{precision:1}}},
{field:'pic',title:'图片',width:100,align:'left',fit:true,editor:{type:'filebox',options:{}}},
//{field:'type1',title:'问题属性',width:100,align:'left',sortable:true,editor:{type:'file',options:{precision:1}}},
{field: 'type1', title: '问题属性', width: 100, formatter: unitformatter, align: 'center', editor: { type: 'combobox', options: { data: Address, valueField: "value", textField: "text" }}},
{field:'currentProcces',title:'现场处理方案',width:100,align:'left',sortable:true,editor:{type:'text',options:{precision:1}}},
{field:'changeMethod',title:'更改建议',width:150,align:'left',sortable:true,editor:{type:'text',options:{precision:1}}},
{field:'analysis',title:'原因分析',width:100,align:'left',sortable:true,editor:{type:'text',options:{precision:1}}},
]],