我正在尝试从代码填充组合框，而不是在XAML上定义值。但是，无论我是尝试绑定方法还是从列表中设置它们，似乎都无法使其正常工作。
使用下面的类
public class Quote
{
public int Value;
public string DisplayValue;
}和以下可观察到的集合
public ObservableCollection<Quote> QuoteCollection
{
get
{
return new ObservableCollection<Quote>
{
new Quote{ DisplayValue = "6", Value = 6 },
new Quote{ DisplayValue = "12", Value = 12 },
new Quote{ DisplayValue = "18", Value = 18 },
new Quote{ DisplayValue = "24", Value = 24 },
new Quote{ DisplayValue = "30", Value = 30 },
new Quote{ DisplayValue = "36", Value = 36 },
new Quote{ DisplayValue = "42", Value = 42 },
new Quote{ DisplayValue = "48", Value = 48 },
new Quote{ DisplayValue = "54", Value = 54 },
new Quote{ DisplayValue = "60", Value = 60 }
};
}
}我似乎不能让它工作，当我这样绑定它时，似乎什么都没有发生：
<local:ExtendedComboBox x:Name="quotes" ItemsSource="{Binding QuoteCollection}" DisplayMemberPath="DisplayValue"/>当我尝试从一个集合列表中添加它时，如下所示：
quotes.ItemsSource = new List<Quote>
{
new Quote{ DisplayValue = "6", Value = 6 },
new Quote{ DisplayValue = "12", Value = 12 },
new Quote{ DisplayValue = "18", Value = 18 },
new Quote{ DisplayValue = "24", Value = 24 },
new Quote{ DisplayValue = "30", Value = 30 },
new Quote{ DisplayValue = "36", Value = 36 },
new Quote{ DisplayValue = "42", Value = 42 },
new Quote{ DisplayValue = "48", Value = 48 },
new Quote{ DisplayValue = "54", Value = 54 },
new Quote{ DisplayValue = "60", Value = 60 }
};组合框似乎填充了一些内容，但所有选项都是空白的。
ExtendedComboBox直接取自here，两种解决方案均取自here。
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