Thank you very much. Your answer is very clear.
在 2016年9月12日星期一 UTC+8下午5:31:55，Niphlod写道：
>
> it's to hold selected lines, I think. Anyway, you should use
> request.get_vars to get your data (since your method is "get"). Also,
> please note that the grid is coded in such a way that the grid is the sole
> "manager" of the request/response cycle, so fiddling in the same page with
> your own pieces of code may result in issues.
>
> On Monday, September 12, 2016 at 8:37:13 AM UTC+2, Yibing Liu wrote:
>>
>>
>> My web2py version is 2.14.6.
>>
>> I define a form in myview.html
>>
>> `<form action="{{=URL('default','sj_xxxx')}}" method='get'>
>> <input id='shizhou' name='shizhou'>
>> <input id='xianqu' name='xianqu'>
>> <input id='xiangzhen' name='xiangzhen'>
>> <input type="submit" value="query">
>> </form>`
>>
>> In my default controler function 'index' I want to deal with the
>> request.vars passed from html.It works fine. Then I add a
>> form=SQLFORM.grid(query) to my function, I find that the request.vars
>> are added an additional key "records" with null value when the
>> sqlform.grid() line is executed. So I debug into the source code, I find
>> the line 2479 in sqlhtml.py is
>>
>> elif not request.vars.records: request.vars.records = []
>>
>> After the above line excuted my request.vars was added an additional
>> key "records" with null value. My questions are,
>>
>> 1.How can I prevent adding the "record" key to my request.vars?
>>
>> 2.What's the purpose of the code
>>
>> elif not request.vars.records: request.vars.records = []
>>
>
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