通过对表格数据的选择对input的value进行修改

$(function(){    
    $("#tb_gys").datagrid({
        url:'getGysinfoList.action',
        columns:[[
                {field:'gysid',title:'供应商编号',width:100,sortable:true},
                {field:'gysname',title:'供应商名称',width:100},
                  ]],
               onClickRow: function(rowIndex, rowData){
                         var data= $('#tb_gys').datagrid('getSelected');
                         $("#gysid").textbox('setText',data.gysid);
                         $("#gysname").textbox('setText',data.gysname);
                      }
    })
    $('#btn').bind('click', function(){    
        $('#gys').dialog('open');  
        
    });    
});

<form id="search_form">
供应ID：<input class="easyui-textbox"  id="gysid"  name="gysid"  style="width:50px">
供应商名称：<input class="easyui-textbox"  id="gysname"  name="gysname"  style="width:50px">
<a id="btn" href="#" class="easyui-linkbutton" data-options="iconCls:'icon-search'">选择供应商</a>  
经手人：<input class="easyui-textbox"  id="rkper"  name="rkper"  style="width:50px">
</form>

<table id="zhong" ></table>
</div>

<div id="gys" class="easyui-dialog" style="width:400px;hight:200px;"
data-options="{closed:true,}"  title="供应商列表">
<table id="tb_gys"></table>
</div>