在Django forms.ChoiceField上设置所选值 [英] Setting the selected value on a Django forms.ChoiceField

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问题描述

这是一个表单中的字段声明:

  max_number = forms.ChoiceField(widget = forms.Select() 
choices =([('1','1'),('2','2'),('3','3'),]),initial ='3',required = True ,)

我想将初始值设置为3,这似乎不起作用。我已经玩过param,quote / no quotes等...但没有改变。



通过Google发现的一些结果表明可以设置初始值,但我从来没有设法让它工作!我在django 1.0的方式。



有可能有人给我一个确定的答案吗?和/或我的代码片段中必要的调整?



非常感谢。

解决方案

  form = MyForm(initial = {'max_number': '3'})


Here is the field declaration in a form:

max_number = forms.ChoiceField(widget = forms.Select(), 
                     choices = ([('1','1'), ('2','2'),('3','3'), ]), initial='3', required = True,)

I would like to set the initial value to be 3 and this doesn't seem to work. I have played about with the param, quotes/no quotes etc... but no change.

A few results I've found through Google suggest it is possible to set the initial value but I've never ever managed to get it to work! I am on django 1.0 by the way.

Could anyone give me a definitive answer if it is possible? And/or the necessary tweak in my code snippet?

Many thanks.

解决方案

Try setting the initial value when you instantiate the form:

form = MyForm(initial={'max_number': '3'})

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