组合框背景颜色更改 [英] combobox background colour change

问题描述

问题:
我有一种形式，很少有组合框.我想更改其值由用户更改的那些组合框的背景颜色.这样用户就可以知道自己修改了哪个组合框值.

我在Visual Studio 2010中使用wpf.

Question :
i am having one form on which there are few comboboxes. I want to change background colour of those combobox whose value is changed by user. so that user would be able to make sense which combobox value he has modified.

i am using wpf in visual studio 2010

推荐答案

那是什么问题?在组合框发生更改事件时，只需在该控件上添加边框或更改回颜色即可.

您只需在这里处理组合框SelectionChange事件: Selector.SelectionChanged事件 [ ^ ]

So what''s the issue? On change event of the combobox, just put a border on that control or change back color.

Combobox SelectionChange event is all you need to handle, here: Selector.SelectionChanged Event[^]

问题出在哪里?

C#:

And what''s the problem?

C#:

MyComboBox.SelectionChanged += (sender, eventArgs) => {
    ((ComboBox)sender).Background =
         CalculateColor(((ComboBox)sender).SelectedValue); //whatever it is
}; //MyComboBox.SelectionChanged

—SA

—SA

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