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我与Monotouch.Dialog工作,并遇到了此问题:MonoTouch.Dialog - rootElement的公司集团为空或不是一个RadioGroup中
The RootElement's Group is null or is not a RadioGroup
我有如下,我工作的代码已添加评论告诉你的变量的状态:
var groupSortChoices = new RadioGroup("S", Extensions.GetValues<PeopleDirectoryGroupSortEnum>().IndexOfItem (i => i.Element == Extensions.GetValue<PeopleDirectoryGroupSortEnum>(Options.GroupAndSort)).Value);
// new RadioGroup("S", 0)
var nameDisplayChoices = new RadioGroup("N", Extensions.GetValues<PeopleDirectoryNameDisplayEnum>().IndexOfItem (i => i.Element == Extensions.GetValue<PeopleDirectoryNameDisplayEnum>(Options.NameDisplay)).Value);
// new RadioGroup("N", 0)
var gsElems = Extensions.GetValues<PeopleDirectoryGroupSortEnum>()
.Select(e => new RadioElement(e, "S"))
.ToArray();
// String[4] array of this enum's values
var ndElems = Extensions.GetValues<PeopleDirectoryNameDisplayEnum>()
.Select(e => new RadioElement(e, "N"))
.ToArray();
// String[2] array of this enum's values
groupSortElement = new RootElement("Grouping and Sorting", groupSortChoices)
{
new Section("Grouping and Sorting")
{
gsElems
},
};
nameDisplayElement = new RootElement("Name Display", nameDisplayChoices)
{
new Section("Name Display")
{
ndElems
}
};
var root = new RootElement("Directory Options")
{
groupSortElement,
nameDisplayElement
};
this.Root = root;
我打破了这个代码,试图调试它。该错误肯定来自groupSortElement和nameDisplayElement。我试图初始化我的组而不使用“S”和“N”,仍然得到相同的错误。我之前做过几次这样的事情,不能为我的生活弄清楚我做错了什么。有任何想法吗?两个RadioGroups不为空,如果我注释掉groupSortElement和nameDisplayElement,会出现一个空视图,告诉我这是与这些元素有关的事情。