分类导航

silverlight 发布时间：2022-05-04 发布网站：大佬教程 code.js-code.com

大佬教程收集整理的这篇文章主要介绍了Silverlight 4常用StringFormat格式总结，大佬教程大佬觉得挺不错的，现在分享给大家，也给大家做个参考。

概述

在Silverlight项目中，经常会根据需求的不同，提供不同的字符格式到客户端。这篇文章总结了目前Silverlight 4常用StringFormat绑定字符格式，方便大家在以后的开发中调用参考。早期的格式转换方法在Silverlight 4之前的版本，通常修改字符格式是通过实现IValueConverter接口，在IValueConverter接口中包含有两个方法： 1. Convert

@H_301_7@

在Silverlight项目中，经常会根据需求的不同，提供不同的字符格式到客户端。这篇文章总结了目前Silverlight 4常用StringFormat绑定字符格式，方便大家在以后的开发中调用参考。@H_301_7@

早期的格式转换方法@H_301_7@

在Silverlight 4之前的版本，通常修改字符格式是通过实现IValueConverter接口，在IValueConverter接口中包含有两个方法：@H_301_7@

1. Convert，在绑定源数据传送到客户端显示前，转换修改数据；@H_301_7@

2. ConvertBACk，在目标数据传送到绑定源数据前，转换修改数据，该方法仅被用于“TwoWay”绑定模式；@H_301_7@

例如，根据布尔型判断实现控件是否显示在客户端，下面是一个简单的转换代码，通过实现IValueConverter，判断控件Visibility属性值。@H_301_7@

@H_301_7@

 
   
    1  
   public 
     
   class 
    VisibilityConverter : IValueConverter
 
    2  
   
 
    3  
   {
 
    4  
   
 
    5  
   public 
     
   object 
    Convert( 
   object 
    value,Type targetType, 
   object 
    parameter,CultureInfo culturE)
 
    6  
   
 
    7  
   {
 
    8  
   
 
    9  
   bool 
    visibility  
   = 
    ( 
   bool 
   )value;
 
   10  
   
 
   11  
   return 
    visibility  
   ? 
    Visibility.Visible : Visibility.Collapsed;
 
   12  
   
 
   13  
   }
 
   14  
   
 
   15  
   public 
     
   object 
    ConvertBACk( 
   object 
    value,CultureInfo culturE)
 
   16  
   
 
   17  
   {
 
   18  
   
 
   19  
   Visibility visibility  
   = 
    (Visibility)value;
 
   20  
   
 
   21  
   return 
    (visibility  
   == 
    Visibility.VisiblE);
 
   22  
   
 
   23  
   }
 
   24  
   
 
   25  
   }

@H_301_7@

Silverlight 4的StringFormat属性@H_301_7@

在Silverlight 4中，数据绑定SDK提供一个“StringFormat”的属性，该属性允许开发人员自由定义输出字符格式，例如，DataPicker控件，该控件提供SELEctedDateFormat属性，控制其输出格式“短格式”或“长格式”。@H_301_7@

SELEctedDateFormat="Short",“默认”@H_301_7@

@H_301_7@

SELEctedDateFormat="Long"@H_301_7@

@H_301_7@

而如果需要输出“April 01,2011”格式，则无法使用SELEctedDateFormat控制其格式，这时可以使用StringFormat属性完成需求。@H_301_7@

<toolkit:DatePicker SELEctedDate="{Binding DemoDate,Mode=TwoWay,StringFormat='MMM d,yyyy'}" />@H_301_7@

@H_301_7@

再例如，早期实现一段文字绑定信息需要按照以下格式操作：@H_301_7@

<TextBlock Text=”当前登录用户: ”/>@H_301_7@

<TextBlock Text=“{Binding NamE}”/>@H_301_7@

输出: 当前登录用户Jv9@H_301_7@

在Silverlight 4中使用StringFormat属性，可以简单的实现如下:@H_301_7@

<TextBlock Text=“{Binding Name,StringFormat=’当前登录用户: /{0/}’}”>@H_301_7@

这样实现简单而又方便。@H_301_7@

对于StringFormat属性的使用方法还有很多，下面使用实例演示常用的属性：@H_301_7@

@H_301_7@@H_301_7@

@H_301_7@

  1 < Grid x:Name ="LayoutRoot" >
  2 < ScrollViewer x:Name ="PageScrollViewer" Style ="{Staticresource PageScrollViewerStylE}" >
  3 < StackPanel Orientation ="Horizontal" >
  4 < StackPanel x:Name ="ContentStackPanel" >
  5 < TextBlock FontSize ="16" textwrapping ="Wrap" text ="StringFormat和字符串格式" Margin ="8" />
  6 < Border BorderBrush ="LightGray" BorderThickness ="1" Width ="300" Margin ="5" HorizontalAlignment ="Left" >
  7 < StackPanel Orientation ="Vertical" Margin ="5" >
  8 < TextBox x:Name ="txtsource" Width ="125" HorizontalAlignment ="Left" />
  9 < TextBlock textwrapping ="Wrap" text ="StringFormat='正在输入 "/{0/}"." FontWeight ="Bold" Margin ="0,4,2" />
10 < TextBlock Text ="{Binding text, ELEMENTNAME=txtsource, StringFormat='正在输入 "/{0/}".'}" textwrapping ="Wrap" Margin ="0,4" />
11 < TextBlock textwrapping ="Wrap" text ="StringFormat=/{0/,20/}" FontWeight ="Bold" Margin ="0,2" />
12 < TextBlock Text ="{Binding text, StringFormat=/{0/,20/}}" textwrapping ="Wrap" Margin ="0,4" />
13 < TextBlock textwrapping ="Wrap" text ="StringFormat=/{0/,-20/}" FontWeight ="Bold" Margin ="0,2" />
14 < TextBlock Text ="{Binding text,-20/}}" textwrapping ="Wrap" Margin ="0,4" />
15 </ StackPanel >
16 </ Border >
17
18 < StackPanel x:Name ="DatePanel" >
19 < TextBlock Text ="StringFormat和日期格式" Margin ="8" FontSize ="16" />
20 < Border BorderBrush ="LightGray" BorderThickness ="1" Width ="300" Margin ="5" HorizontalAlignment ="Left" >
21 < StackPanel DataContext ="{Staticresource SampleDatE}" >
22 < TextBlock textwrapping ="Wrap" text ="StringFormat=f" FontWeight ="Bold" Margin ="0,2" />
23 < TextBlock textwrapping ="Wrap" text ="{Binding CurrentdatetiR_358_11845@e, StringFormat=f}" Margin ="8,0" />
24 < TextBlock textwrapping ="Wrap" text ="StringFormat=F" FontWeight ="Bold" Margin ="0,2" />
25 < TextBlock textwrapping ="Wrap" text ="{Binding CurrentdatetiR_358_11845@e, StringFormat=F}" Margin ="8,0" />
26 < TextBlock textwrapping ="Wrap" text ="StringFormat=g" FontWeight ="Bold" Margin ="0,2" />
27 < TextBlock textwrapping ="Wrap" text ="{Binding CurrentdatetiR_358_11845@e, StringFormat=g}" Margin ="8,0" />
28 < TextBlock textwrapping ="Wrap" text ="StringFormat=G" FontWeight ="Bold" Margin ="0,2" />
29 < TextBlock textwrapping ="Wrap" text ="{Binding CurrentdatetiR_358_11845@e, StringFormat=G}" Margin ="8,0" />
30 < TextBlock textwrapping ="Wrap" text ="StringFormat=m" FontWeight ="Bold" Margin ="0,2" />
31 < TextBlock textwrapping ="Wrap" text ="{Binding CurrentdatetiR_358_11845@e, StringFormat=m}" Margin ="8,0" />
32 < TextBlock textwrapping ="Wrap" text ="StringFormat=y" FontWeight ="Bold" Margin ="0,2" />
33 < TextBlock textwrapping ="Wrap" text ="{Binding CurrentdatetiR_358_11845@e, StringFormat=y}" Margin ="8,0" />
34 < TextBlock textwrapping ="Wrap" text ="StringFormat=t" FontWeight ="Bold" Margin ="0,2" />
35 < TextBlock textwrapping ="Wrap" text ="{Binding CurrentdatetiR_358_11845@e, StringFormat=t}" Margin ="8,0" />
36 < TextBlock textwrapping ="Wrap" text ="StringFormat=T" FontWeight ="Bold" Margin ="0,2" />
37 < TextBlock textwrapping ="Wrap" text ="{Binding CurrentdatetiR_358_11845@e, StringFormat=T}" Margin ="8,0" />
38 < TextBlock textwrapping ="Wrap" text ="StringFormat=u" FontWeight ="Bold" Margin ="0,2" />
39 < TextBlock textwrapping ="Wrap" text ="{Binding CurrentdatetiR_358_11845@e, StringFormat=u}" Margin ="8,0" />
40 < TextBlock textwrapping ="Wrap" text ="StringFormat=o" FontWeight ="Bold" Margin ="0,2" />
41 < TextBlock textwrapping ="Wrap" text ="{Binding CurrentdatetiR_358_11845@e, StringFormat=o}" Margin ="8,0" />
42 < TextBlock textwrapping ="Wrap" text ="StringFormat=MM/dd/yy" FontWeight ="Bold" Margin ="0,2" />
43 < TextBlock textwrapping ="Wrap" text ="{Binding CurrentdatetiR_358_11845@e, StringFormat=MM/dd/yy}" Margin ="8,0" />
44 < TextBlock textwrapping ="Wrap" text ="StringFormat=MMMM dd/, yyyy g" FontWeight ="Bold" Margin ="0,2" />
45 < TextBlock textwrapping ="Wrap" text ="{Binding CurrentdatetiR_358_11845@e, StringFormat=MMMM dd/, yyyy g}" Margin ="8,0" />
46 < TextBlock textwrapping ="Wrap" text ="StringFormat=hh:mm:ss.fff tt" FontWeight ="Bold" Margin ="0,2" />
47 < TextBlock textwrapping ="Wrap" text ="{Binding CurrentdatetiR_358_11845@e, StringFormat=hh:mm:ss.fff tt}" Margin ="8,0" />
48 < TextBlock textwrapping ="Wrap" text ="StringFormat=/{0:r/}" FontWeight ="Bold" Margin ="0,2" />
49 < TextBlock textwrapping ="Wrap" text ="{Binding CurrentdatetiR_358_11845@e, StringFormat=/{0:r/}}" Margin ="8,0" />
50 < TextBlock textwrapping ="Wrap" text ="StringFormat='MMM d, yyyy'" FontWeight ="Bold" Margin ="0,2" />
51 < TextBlock textwrapping ="Wrap" text ="{Binding CurrentdatetiR_358_11845@e, StringFormat='MMM d, yyyy'}" Margin ="8,0" />
52 </ StackPanel >
53 </ Border >
54 </ StackPanel >
55 </ StackPanel >
56 < StackPanel Orientation ="Vertical" >
57 < TextBlock Text ="StringFormat和数字演示" Margin ="8" FontSize ="16" />
58 < Border BorderBrush ="LightGray" BorderThickness ="1" Width ="300" Margin ="5" HorizontalAlignment ="Left" >
59 < StackPanel Orientation ="Vertical" Margin ="5" >
60 < Grid >
61 < Grid.RowDeFinitions >
62 < RowDeFinition Height ="Auto" />
63 < RowDeFinition Height ="Auto" />
64 </ Grid.RowDeFinitions >
65 < Grid.columnDeFinitions >
66 < columnDeFinition Width ="Auto" MinWidth ="18" />
67 < columnDeFinition />
68 < columnDeFinition Width ="Auto" MinWidth ="28" />
69 </ Grid.columnDeFinitions >
70 < TextBlock Text ="1" HorizontalAlignment ="Left" d:LayoutOverrides ="Height" />
71 < TextBlock Text ="100,000" d:LayoutOverrides ="Width, Height" Grid.column ="2" Margin ="0" />
72 < Slider x:Name ="BigNumSlider" Margin ="0" d:LayoutOverrides ="Height" Grid.columnSpan ="3" Grid.Row ="1" Maximum ="100000" Minimum ="1" Value ="50000" />
73 </ Grid >
74 < TextBlock textwrapping ="Wrap" text ="StringFormat=c" FontWeight ="Bold" Margin ="0,2" />
75 < TextBox textwrapping ="Wrap" text ="{Binding Value, ELEMENTNAME=BigNumSlider, Mode=TwoWay, StringFormat=c}" Margin ="8,0" />
76 < TextBlock textwrapping ="Wrap" text ="StringFormat=目前拥有现金 /{0:C0/}" FontWeight ="Bold" Margin ="0,2" />
77 < TextBox textwrapping ="Wrap" text ="{Binding Value, StringFormat=目前拥有现金 /{0:C0/}}" Margin ="8,0" />
78 < TextBlock textwrapping ="Wrap" text ="StringFormat=e" FontWeight ="Bold" Margin ="0,2" />
79 < TextBox textwrapping ="Wrap" text ="{Binding Value, StringFormat=E}" Margin ="8,0" />
80 < TextBlock textwrapping ="Wrap" text ="StringFormat=/{0:E4/}" FontWeight ="Bold" Margin ="0,2" />
81 < TextBox textwrapping ="Wrap" text ="{Binding Value, StringFormat=/{0:E4/}}" Margin ="8,0" />
82 < TextBlock textwrapping ="Wrap" text ="StringFormat=n" FontWeight ="Bold" Margin ="0,2" />
83 < TextBox textwrapping ="Wrap" text ="{Binding Value, StringFormat=n}" Margin ="8,0" />
84 < TextBlock textwrapping ="Wrap" text ="StringFormat=/{0:N0/}" FontWeight ="Bold" Margin ="0,2" />
85 < TextBox textwrapping ="Wrap" text ="{Binding Value, StringFormat=/{0:N0/}}" Margin ="8,0" />
86 < TextBlock textwrapping ="Wrap" text ="StringFormat='###,###.##'" FontWeight ="Bold" Margin ="0,2" />
87 < TextBox textwrapping ="Wrap" text ="{Binding Value, StringFormat='###,###.##'}" Margin ="8,0" />
88 </ StackPanel >
89 </ Border >
90 < Border BorderBrush ="LightGray" BorderThickness ="1" Width ="300" Margin ="5" HorizontalAlignment ="Left" >
91 < StackPanel Orientation ="Vertical" Margin ="5" >
92 < Grid >
93 < Grid.RowDeFinitions >
94 < RowDeFinition Height ="Auto" />
95 < RowDeFinition Height ="Auto" />
96 </ Grid.RowDeFinitions >
97 < Grid.columnDeFinitions >
98 < columnDeFinition Width ="Auto" MinWidth ="18" />
99 < columnDeFinition />
100 < columnDeFinition Width ="Auto" MinWidth ="28" />
101 </ Grid.columnDeFinitions >
102 < TextBlock Text ="-1" HorizontalAlignment ="Left" d:LayoutOverrides ="Height" />
103 < TextBlock Text ="1" d:LayoutOverrides ="Width, Height" Grid.column ="2" Margin ="0" />
104 < Slider x:Name ="BigNumSlider1" Margin ="0" d:LayoutOverrides ="Height" Grid.columnSpan ="3" Grid.Row ="1" Maximum ="1" Minimum ="-1" Value ="0.2" LargeChange ="0.1" smallChange ="0.01" />
105 </ Grid >
106 < TextBlock textwrapping ="Wrap" text ="StringFormat=n" FontWeight ="Bold" Margin ="0,2" />
107 < TextBox textwrapping ="Wrap" text ="{Binding Value, ELEMENTNAME=BigNumSlider1,0" />
108 < TextBlock textwrapping ="Wrap" text ="StringFormat=/{0:N4/}" FontWeight ="Bold" Margin ="0,2" />
109 < TextBox textwrapping ="Wrap" text ="{Binding Value, StringFormat=/{0:N4/}}" Margin ="8,0" />
110 < TextBlock textwrapping ="Wrap" text ="StringFormat=p" FontWeight ="Bold" Margin ="0,2" />
111 < TextBox textwrapping ="Wrap" text ="{Binding Value, StringFormat=p}" Margin ="8,0" />
112 < TextBlock textwrapping ="Wrap" text ="StringFormat=/{0:P0/}" FontWeight ="Bold" Margin ="0,2" />
113 < TextBox textwrapping ="Wrap" text ="{Binding Value, StringFormat=/{0:P0/}}" Margin ="8,0" />
114 < TextBlock textwrapping ="Wrap" text ="StringFormat=/{0:E5/}" FontWeight ="Bold" Margin ="0,2" />
115 < TextBox textwrapping ="Wrap" text ="{Binding Value, StringFormat=/{0:E5/}}" Margin ="8,0" />
116 < TextBlock textwrapping ="Wrap" text ="StringFormat=/{0:C3/}" FontWeight ="Bold" Margin ="0,2" />
117 < TextBox textwrapping ="Wrap" text ="{Binding Value, StringFormat=/{0:C3/}}" Margin ="8,0" />
118 </ StackPanel >
119 </ Border >
120 </ StackPanel >
121
122 </ StackPanel >
123 </ ScrollViewer >
124 </ Grid >

@H_301_7@

源代码下载@H_301_7@

在线演示@H_301_7@

@H_301_7@

欢迎大家加入“专注Silverlight”QQ技术群，欢迎大家加入一起学习讨论Silverlight&WPF&WidNows Phone开发技术。 22308706(一群) 超级群500人 37891947(二群) 超级群500人 100844510(三群) 高级群200人 32679922(四群) 超级群500人 23413513(五群) 高级群200人 32679955(六群) 超级群500人 61267622(七群) 超级群500人 88585140(八群) 超级群500人 128043302(九群企业应用开发推荐群) 高级群200人 101364438(十群) 超级群500人 68435160(十一群企业应用开发推荐群)超级群500人@H_301_7@

大佬总结

以上是大佬教程为你收集整理的Silverlight 4常用StringFormat格式总结全部内容，希望文章能够帮你解决Silverlight 4常用StringFormat格式总结所遇到的程序开发问题。

如果觉得大佬教程网站内容还不错，欢迎将大佬教程推荐给程序员好友。

本图文内容来源于网友网络收集整理提供，作为学习参考使用，版权属于原作者。
如您有任何意见或建议可联系处理。小编QQ：384754419，请注明来意。

标签：4 silverlight stringformat 常用总结格式

上一篇: Silverlight 5 beta新特性探索系... 下一篇:Silverlight 4常用StringFormat格...

猜你在找的silverlight相关文章

silverlight – 如何在Windows Phone 7中创建连续动画？ 2022-05-04
wpf – 嵌入图像在UserControl中不显示 2022-05-03
WPF的Deepzoom 2022-05-03
silverlight – 设置ComboBoxItem的文本和值 2022-05-03
wpf – 寻找股票图表组件 2022-05-03
如何在Silverlight中以编程方式转到特定的URL？ 2022-05-03
Silverlight Webservice“远程服务器返回错误：NotFound” 2022-05-03
osx – 无法输入Silverlight 5输入字段(Chrome)MacOS 2022-05-03
客户端WCF DataContract具有来自服务的空/空值 2022-05-03
使用MVVM Light Messenger与Silverlight 4 ChildWindow对话框类 2022-05-03