问题描述
如何清除组合框中的选定值而不删除列表中的任何值.
How to clear a selected value in combo box without deleting any value in the list.
推荐答案
DropDownList1.SelectedIndex=-1;
ComboBox1.SelectedIndex = -1
或您想在Viewmodel中使用它，
然后为所选项目设置属性.并将其设置为null:
例如:
or dou you want it in viewmodel,
then Have a property for selected item. and set it to null:
For eg:
public List<gender> GenderList
{get;set;}
//包括通知属性已更改的属性..以上只是大纲
然后拥有一个属性
//include notify property changed for that property..the above one is just outline
Then have a property
Public Gender SelectedGender
{get;set;}
将Itemsource绑定到GenderList属性，并将Selectedvalue属性绑定到SelectedGender.
每当您想清除选择Set SelectedGender = null时.因为那里有Notifyproperty更改的元素，它将清除选择
Bind Itemsource to GenderList property and Selectedvalue property to SelectedGender.
Whenever You want to clear the selection Set SelectedGender =null. SInce Notifyproperty changed element is there, it will clear the selection
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