PercentFormatter 类

定义

格式化和分析百分比。

public ref class PercentFormatter sealed : INumberFormatter, INumberFormatter2, INumberFormatterOptions, INumberParser, INumberRounderOption, ISignedZeroOption, ISignificantDigitsOption
/// [Windows.Foundation.Metadata.Activatable(65536, Windows.Foundation.UniversalApiContract)]
/// [Windows.Foundation.Metadata.Activatable(Windows.Globalization.NumberFormatting.IPercentFormatterFactory, 65536, Windows.Foundation.UniversalApiContract)]
/// [Windows.Foundation.Metadata.ContractVersion(Windows.Foundation.UniversalApiContract, 65536)]
/// [Windows.Foundation.Metadata.MarshalingBehavior(Windows.Foundation.Metadata.MarshalingType.Agile)]
/// [Windows.Foundation.Metadata.Threading(Windows.Foundation.Metadata.ThreadingModel.Both)]
class PercentFormatter final : INumberFormatter, INumberFormatter2, INumberFormatterOptions, INumberParser, INumberRounderOption, ISignedZeroOption, ISignificantDigitsOption
/// [Windows.Foundation.Metadata.ContractVersion(Windows.Foundation.UniversalApiContract, 65536)]
/// [Windows.Foundation.Metadata.MarshalingBehavior(Windows.Foundation.Metadata.MarshalingType.Agile)]
/// [Windows.Foundation.Metadata.Threading(Windows.Foundation.Metadata.ThreadingModel.Both)]
/// [Windows.Foundation.Metadata.Activatable(65536, "Windows.Foundation.UniversalApiContract")]
/// [Windows.Foundation.Metadata.Activatable(Windows.Globalization.NumberFormatting.IPercentFormatterFactory, 65536, "Windows.Foundation.UniversalApiContract")]
class PercentFormatter final : INumberFormatter, INumberFormatter2, INumberFormatterOptions, INumberParser, INumberRounderOption, ISignedZeroOption, ISignificantDigitsOption
[Windows.Foundation.Metadata.Activatable(65536, typeof(Windows.Foundation.UniversalApiContract))]
[Windows.Foundation.Metadata.Activatable(typeof(Windows.Globalization.NumberFormatting.IPercentFormatterFactory), 65536, typeof(Windows.Foundation.UniversalApiContract))]
[Windows.Foundation.Metadata.ContractVersion(typeof(Windows.Foundation.UniversalApiContract), 65536)]
[Windows.Foundation.Metadata.MarshalingBehavior(Windows.Foundation.Metadata.MarshalingType.Agile)]
[Windows.Foundation.Metadata.Threading(Windows.Foundation.Metadata.ThreadingModel.Both)]
public sealed class PercentFormatter : INumberFormatter, INumberFormatter2, INumberFormatterOptions, INumberParser, INumberRounderOption, ISignedZeroOption, ISignificantDigitsOption
[Windows.Foundation.Metadata.ContractVersion(typeof(Windows.Foundation.UniversalApiContract), 65536)]
[Windows.Foundation.Metadata.MarshalingBehavior(Windows.Foundation.Metadata.MarshalingType.Agile)]
[Windows.Foundation.Metadata.Threading(Windows.Foundation.Metadata.ThreadingModel.Both)]
[Windows.Foundation.Metadata.Activatable(65536, "Windows.Foundation.UniversalApiContract")]
[Windows.Foundation.Metadata.Activatable(typeof(Windows.Globalization.NumberFormatting.IPercentFormatterFactory), 65536, "Windows.Foundation.UniversalApiContract")]
public sealed class PercentFormatter : INumberFormatter, INumberFormatter2, INumberFormatterOptions, INumberParser, INumberRounderOption, ISignedZeroOption, ISignificantDigitsOption
function PercentFormatter(languages, geographicRegion)
Public NotInheritable Class PercentFormatter
Implements INumberFormatter, INumberFormatter2, INumberFormatterOptions, INumberParser, INumberRounderOption, ISignedZeroOption, ISignificantDigitsOption
继承
Object Platform::Object IInspectable PercentFormatter
属性
实现

Windows 要求

设备系列
Windows 10 (在 10.0.10240.0 中引入)
API contract
Windows.Foundation.UniversalApiContract (在 v1.0 中引入)

示例

// This scenario uses the Windows.Globalization.NumberFormatting.PercentFormatter and
// the Windows.Globalization.NumberFormatting.PermilleFormatter classes to format numbers
// as a percent or a permille.

//using System.Text;
//using Windows.Globalization.NumberFormatting;

StringBuilder sb = new StringBuilder();

// Create numbers to format.
double randomNumber = new Random().NextDouble();
ulong fixedNumber = 500;

// Create percent formatters.
PercentFormatter defaultPercentFormatter = new PercentFormatter();
PercentFormatter languagePercentFormatter = new PercentFormatter(new[] { "fr-FR" }, "ZZ");

// Create permille formatters.
PermilleFormatter defaultPermilleFormatter = new PermilleFormatter();
PermilleFormatter languagePermilleFormatter = new PermilleFormatter(new[] { "ar" }, "ZZ");

// Format random numbers as percent or permille.
sb.AppendLine("Random number: " + randomNumber);
sb.AppendLine("Percent formatted: " + defaultPercentFormatter.Format(randomNumber));
sb.AppendLine("Permille formatted: " + defaultPermilleFormatter.Format(randomNumber));
sb.AppendLine();
sb.AppendLine("Language-specific percent formatted: " + languagePercentFormatter.Format(randomNumber));
sb.AppendLine("Language-specific permille formatted: " + languagePermilleFormatter.Format(randomNumber));
sb.AppendLine();
sb.AppendLine("Fixed number: " + fixedNumber);

// Format fixed number with grouping.
defaultPercentFormatter.IsGrouped = true;
sb.AppendLine("Percent formatted (grouped): " + defaultPercentFormatter.Format(fixedNumber));

//Format with grouping using French language.
languagePercentFormatter.IsGrouped = true;
sb.AppendLine("Percent formatted (grouped as fr-FR): " + defaultPercentFormatter.Format(fixedNumber));

// Format with no fraction digits.
defaultPercentFormatter.FractionDigits = 0;
sb.AppendLine("Percent formatted (no fractional digits): " + defaultPercentFormatter.Format(fixedNumber));

// Format always with a decimal point.
defaultPercentFormatter.IsDecimalPointAlwaysDisplayed = true;
sb.AppendLine("Percent formatted (always with a decimal point): " + defaultPercentFormatter.Format(fixedNumber));

注解

注意

如果你的应用将此类中使用的语言标记传递给任何 国家语言支持 函数,它必须首先通过调用 ResolveLocaleName 来转换标记。

构造函数

PercentFormatter()

创建 PercentFormatter 对象并将其初始化为默认值。

PercentFormatter(IIterable<String>, String)

创建由语言列表和地理区域初始化的 PercentFormatter 对象。

属性

FractionDigits

获取或设置要为百分比的分数部分显示的最小位数。

GeographicRegion

获取格式化和分析百分比时使用的区域。

IntegerDigits

获取或设置要为百分比的整数部分显示的最小位数。

IsDecimalPointAlwaysDisplayed

获取或设置是否应始终显示百分比的小数点。

IsGrouped

获取或设置是否应对百分比的整数部分进行分组。

IsZeroSigned

获取或设置 -0 的格式是“-0”还是“0”。

Languages

获取格式设置和分析百分比时使用的语言标识符的优先级列表。

NumberRounder

获取或设置设置百分比格式时要使用的当前舍入策略。

NumeralSystem

获取或设置用于设置百分比格式和分析的编号系统。

ResolvedGeographicRegion

获取最近用于格式化或分析百分比值的地理区域。

ResolvedLanguage

获取最近用于格式化或分析百分比值的语言。

SignificantDigits

获取或设置百分比格式时当前填充为有效数字。

方法

Format(Double)

返回 Double 百分比的字符串表示形式。

Format(Int64)

返回 Int64 百分比的字符串表示形式。

Format(UInt64)

返回 UInt64 百分比的字符串表示形式。

FormatDouble(Double)

返回 Double 百分比的字符串表示形式。

FormatInt(Int64)

返回 Int64 百分比的字符串表示形式。

FormatUInt(UInt64)

返回 UInt64 百分比的字符串表示形式。

ParseDouble(String)

尝试分析 Double 百分比的字符串表示形式。

ParseInt(String)

尝试分析整数百分比的字符串表示形式。

ParseUInt(String)

尝试分析无符号整数百分比的字符串表示形式。

适用于

另请参阅