WPF:如何在代码中绑定ComboBox ItemsSource? [英] WPF: how to bind ComboBox ItemsSource in code?

问题描述

我需要将以下XAML转换为隐藏代码:

I need to convert this following XAML into code-behind:

<ComboBox SelectedItem="{Binding Level}" ItemsSource="{Binding Levels}" />

但是，此代码无法编译:

However, this code doesn't compile:

new ComboBox() { SelectedItem = new Binding("Level"), ItemsSource = new Binding("Levels") }

错误:无法将类型'System.Windows.Data.Binding'隐式转换为'System.Collections.IEnumerable'.存在显式转换(您是否需要强制转换?)".我该如何投射?

The error: "Cannot implicitly convert type 'System.Windows.Data.Binding' to 'System.Collections.IEnumerable'. An explicit conversion exists (are you missing a cast?)". How do I cast?

推荐答案

ComboBox cbo=new ComboBox();
cbo.SetBinding(ComboBox.SelectedItemProperty,new Binding("Level"){ /* set properties here*/});
cbo.SetBinding(ComboBox.ItemsSourceProperty,new Binding("Levels"));
....

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