内置 WPF IValueConverters
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Built-in WPF IValueConverters
提问by cz_dl
Ok, it was a nice surprise (after writing it several times) to find that there already is a BooleanToVisibilityConverterin System.Windows.Controlsnamespace.
好吧，这是一个惊喜（写了几次之后），发现已经有一个BooleanToVisibilityConverter在System.Windows.Controls命名空间。
Probably there are more such hidden time-savers.
可能还有更多这种隐藏的节省时间。
Anyone got some?
有人有吗？
回答by MrTelly
I did a quick trawl using the Object Browser and this is what I have.
我使用对象浏览器进行了快速搜索，这就是我所拥有的。
Derived from IValueConverter:
源自IValueConverter：
System.Windows.Controls.AlternationConverterSystem.Windows.Controls.BooleanToVisibilityConverterSystem.Windows.Documents.ZoomPercentageConverterSystem.Windows.Navigation.JournalEntryListConverter
Xceed.Wpf.DataGrid.Converters.CurrencyConverterXceed.Wpf.DataGrid.Converters.DateTimeToStringConverterXceed.Wpf.DataGrid.Converters.GreaterThanZeroConverterXceed.Wpf.DataGrid.Converters.IndexToOddConverterXceed.Wpf.DataGrid.Converters.IntAdditionConverterXceed.Wpf.DataGrid.Converters.InverseBooleanConverterXceed.Wpf.DataGrid.Converters.LevelToOpacityConverterXceed.Wpf.DataGrid.Converters.MultimodalResultConverterXceed.Wpf.DataGrid.Converters.NegativeDoubleConverterXceed.Wpf.DataGrid.Converters.NullToBooleanConverterXceed.Wpf.DataGrid.Converters.SourceDataConverterXceed.Wpf.DataGrid.Converters.StringFormatConverterXceed.Wpf.DataGrid.Converters.ThicknessConverterXceed.Wpf.DataGrid.Converters.TypeToBooleanConverterXceed.Wpf.DataGrid.Converters.TypeToVisibilityConverterXceed.Wpf.DataGrid.Converters.ValueToMaskedTextConverter
System.Windows.Controls.AlternationConverterSystem.Windows.Controls.BooleanToVisibilityConverterSystem.Windows.Documents.ZoomPercentageConverterSystem.Windows.Navigation.JournalEntryListConverter
Xceed.Wpf.DataGrid.Converters.CurrencyConverterXceed.Wpf.DataGrid.Converters.DateTimeToStringConverterXceed.Wpf.DataGrid.Converters.GreaterThanZeroConverterXceed.Wpf.DataGrid.Converters.IndexToOddConverterXceed.Wpf.DataGrid.Converters.IntAdditionConverterXceed.Wpf.DataGrid.Converters.InverseBooleanConverterXceed.Wpf.DataGrid.Converters.LevelToOpacityConverterXceed.Wpf.DataGrid.Converters.MultimodalResultConverterXceed.Wpf.DataGrid.Converters.NegativeDoubleConverterXceed.Wpf.DataGrid.Converters.NullToBooleanConverterXceed.Wpf.DataGrid.Converters.SourceDataConverterXceed.Wpf.DataGrid.Converters.StringFormatConverterXceed.Wpf.DataGrid.Converters.ThicknessConverterXceed.Wpf.DataGrid.Converters.TypeToBooleanConverterXceed.Wpf.DataGrid.Converters.TypeToVisibilityConverterXceed.Wpf.DataGrid.Converters.ValueToMaskedTextConverter
Derived from IMultiValueConverter:
源自IMultiValueConverter：
System.Windows.Controls.BorderGapMaskConverterSystem.Windows.Navigation.JournalEntryUnifiedViewConverterSystem.Windows.Controls.MenuScrollingVisibilityConverter
Microsoft.Windows.Themes.ProgressBarBrushConverterMicrosoft.Windows.Themes.ProgressBarHighlightConverter
System.Windows.Controls.BorderGapMaskConverterSystem.Windows.Navigation.JournalEntryUnifiedViewConverterSystem.Windows.Controls.MenuScrollingVisibilityConverter
Microsoft.Windows.Themes.ProgressBarBrushConverterMicrosoft.Windows.Themes.ProgressBarHighlightConverter
Note the Xceed ones (no connection) are available free with their DataGrid. As well as those there's some clever stuff around like the debugging converter. I've also used the last IValueConverterand I'm sure there's some further lambda function goodness to be found, too.
请注意 Xceed 的（无连接）可通过其 DataGrid 免费获得。除了那些还有一些聪明的东西，比如调试转换器。我还使用了最后一个 IValueConverter并且我确信还有一些更进一步的 lambda 函数优点可以找到。
回答by Robert Macnee
Before 3.5 SP1, an IValueConverter was required for string formatting. Now, you can use the StringFormatproperty on Binding to do this.
在 3.5 SP1 之前，字符串格式化需要 IValueConverter。现在，您可以使用Binding 上的StringFormat属性来执行此操作。
From the MSDN page:
从 MSDN 页面：
<DataTemplate>
<TextBlock>
<TextBlock.Text>
<MultiBinding StringFormat="{}{0} -- Now only {1:C}!">
<Binding Path="Description"/>
<Binding Path="Price"/>
</MultiBinding>
</TextBlock.Text>
</TextBlock>
</DataTemplate>
