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<ComboBox Name="cbDesignation" IsEditable="True" TextSearch.TextPath="DesignationName"
StaysOpenOnEdit="True" ItemsSource="{Binding Path=DesignationCollection,Mode=TwoWay}"
SelectedItem="{Binding Path=SelectedDesignation,Mode=TwoWay,UpdateSourceTrigger=PropertyChanged,ValidatesOnDataErrors=True}"
VerticalAlignment="Center">
<ComboBox.ItemsPanel>
<ItemsPanelTemplate>
<VirtualizingStackPanel/>
</ItemsPanelTemplate>
</ComboBox.ItemsPanel>
<ComboBox.ItemTemplate>
<DataTemplate>
<TextBlock Text="{Binding Path=DesignationName}" VerticalAlignment="Center" Grid.Column="1" Margin="5,0,0,0"/>
</DataTemplate>
</ComboBox.ItemTemplate>
</ComboBox>
如果是编辑,然后搜索它,但只有一个项目我想这whrn用户输入字母开始,然后它会显示所有列表regardin这个字母我们如何在combobox中进行搜索,如果它是可编辑的?