ComboBox 组合框

原生组合框的HC扩展。

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public class ComboBox : System.Windows.Controls.ComboBox, IDataInput

属性

属性 描述 默认值 备注
VerifyFunc 数据验证委托
IsError 数据是否错误 false
ErrorStr 错误提示
TextType 文本类型
ShowClearButton 是否显示清除按钮 false
AutoComplete 是否自动完成输入 false

附加属性

属性 描述 默认值 备注
InfoElement.Placeholder 占位符
InfoElement.Necessary 是否必填 false
InfoElement.Symbol 必填标记 ●
InfoElement.ContentHeight 内容高度 30 标题在上时可用
InfoElement.MinContentHeight 最小内容高度 30 标题在上时可用
TitleElement.Title 标题
TitleElement.TitlePlacement 标题对齐方式 TitlePlacementType.Top
TitleElement.TitleWidth 标题宽度 120
DropDownElement.ConsistentWidth 下拉内容是否和下拉框宽度一致 false

方法

方法 描述 备注
VerifyData 验证数据 可手动触发验证

样式

样式 描述
ComboBoxPlusBaseStyle 默认样式

案例

原生功能在扩展ComboBox上行为一致。

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<StackPanel Margin="32">
    <hc:ComboBox ShowClearButton="True" ItemsSource="{Binding DataList}" SelectedIndex="0"/>
    <hc:ComboBox ItemsSource="{Binding DataList}" Margin="0,16,0,0" SelectedIndex="0" IsEnabled="False"/>
    <hc:ComboBox ShowClearButton="True" ItemsSource="{Binding DataList}" SelectedIndex="0" Margin="0,16,0,0" IsEditable="True"/>

    <hc:ComboBox ItemsSource="{Binding DataList}" SelectedIndex="0" hc:InfoElement.Title="{ex:Lang Key={x:Static langs:LangKeys.TitleDemoStr1}}" Margin="0,32,0,0" Text="{ex:Lang Key={x:Static langs:LangKeys.ContentDemoStr}}"/>
    <hc:ComboBox ShowClearButton="True" ItemsSource="{Binding DataList}" hc:InfoElement.Placeholder="{ex:Lang Key={x:Static langs:LangKeys.PlsEnterContent}}" hc:InfoElement.Title="{ex:Lang Key={x:Static langs:LangKeys.TitleDemoStr2}}" hc:InfoElement.Necessary="True" Margin="0,32,0,0"/>
    <hc:ComboBox ItemsSource="{Binding DataList}" IsEditable="True" SelectedIndex="0" hc:InfoElement.Title="{ex:Lang Key={x:Static langs:LangKeys.TitleDemoStr1}}" Margin="0,32,0,0" Text="{ex:Lang Key={x:Static langs:LangKeys.ContentDemoStr}}"/>
    <hc:ComboBox AutoComplete="True" ShowClearButton="True" ItemsSource="{Binding DataList}" IsEditable="True" hc:InfoElement.Placeholder="{ex:Lang Key={x:Static langs:LangKeys.PlsEnterContent}}" hc:InfoElement.Title="{ex:Lang Key={x:Static langs:LangKeys.TitleDemoStr2}}" hc:InfoElement.Necessary="True" Margin="0,32,0,0"/>

    <hc:ComboBox ItemsSource="{Binding DataList}" Width="380" hc:InfoElement.TitleWidth="140" hc:InfoElement.TitlePlacement="Left" hc:InfoElement.Title="{ex:Lang Key={x:Static langs:LangKeys.TitleDemoStr3}}" Margin="0,32,0,0" Text="{ex:Lang Key={x:Static langs:LangKeys.ContentDemoStr}}"/>
    <hc:ComboBox ShowClearButton="True" ItemsSource="{Binding DataList}" Width="380" hc:InfoElement.TitleWidth="140" hc:InfoElement.Placeholder="{ex:Lang Key={x:Static langs:LangKeys.PlsEnterContent}}" hc:InfoElement.TitlePlacement="Left" hc:InfoElement.Title="{ex:Lang Key={x:Static langs:LangKeys.TitleDemoStr3}}" hc:InfoElement.Necessary="True" Margin="0,32,0,0"/>
    <hc:ComboBox ItemsSource="{Binding DataList}" IsEditable="True" Width="380" hc:InfoElement.TitleWidth="140" hc:InfoElement.TitlePlacement="Left" hc:InfoElement.Title="{ex:Lang Key={x:Static langs:LangKeys.TitleDemoStr3}}" Margin="0,32,0,0" Text="{ex:Lang Key={x:Static langs:LangKeys.ContentDemoStr}}"/>
    <hc:ComboBox AutoComplete="True" ShowClearButton="True" ItemsSource="{Binding DataList}" IsEditable="True" Width="380" hc:InfoElement.TitleWidth="140" hc:InfoElement.Placeholder="{ex:Lang Key={x:Static langs:LangKeys.PlsEnterContent}}" hc:InfoElement.TitlePlacement="Left" hc:InfoElement.Title="{ex:Lang Key={x:Static langs:LangKeys.TitleDemoStr3}}" hc:InfoElement.Necessary="True" Margin="0,32,0,0"/>
</StackPanel>

ComboBox