我如何修复错误“Key”属性只能用于包含在“IDictionary”中的元素。
<Window x:Class="WpfApplication9.MainWindow"
xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
Title="MainWindow" Height="350" Width="525">
<Grid>
<Grid
xmlns = "http://schemas.microsoft.com/winfx/2006/xaml/presentation"
xmlns:system = "clr-namespace:System;assembly=mscorlib"
xmlns:x = "http://schemas.microsoft.com/winfx/2006/xaml">
<Grid.Resources>
<!-- Particle Styling -->
<SolidColorBrush x:Key = "ParticleColor" Color = "#006699"/>
<SolidColorBrush x:Key = "ParticleBackgroundColor" Color = "Transparent"/>
<system:Double x:Key = "ParticleOpacity">1</system:Double>
<system:Double x:Key = "ParticleRadius">5</system:Double>
<system:Double x:Key = "StartingPointX">0</system:Double>
<system:Double x:Key = "StartingPointY">-20</system:Double>
<system:Double x:Key = "RotationPointX">0.5</system:Double>
<system:Double x:Key = "RotationPointY">0.5</system:Double>
<!-- StoryBoard -->
<system:TimeSpan x:Key = "StoryBoardBeginTimeP0">00:00:00.000</system:TimeSpan>
<system:TimeSpan x:Key = "StoryBoardBeginTimeP1">00:00:00.100</system:TimeSpan>
<system:TimeSpan x:Key = "StoryBoardBeginTimeP2">00:00:00.200</system:TimeSpan>
<system:TimeSpan x:Key = …Run Code Online (Sandbox Code Playgroud) 我正在使用ManipulationBoundaryFeedback来避免窗口被拖动到触摸设备上,除了webbrowser有一个滚动条之外,所有其他控件都能正常工作.任何工作都围绕着这个
我试图从Windows Phone 8发布一个httpwebrequest到Rest服务,http头:User-agent = @"Mozilla/5.0(兼容; MSIE 10.0; Windows Phone 8.0; Trident/6.0; IEMobile/10.0; ARM;触摸;微软;虚拟)"和帖子帖体:payload = testvalue&item1 = value;
从REST客户端发布时,相同的请求会返回响应
以下是Windows Phone 8代码中出现的异常
System.Net.WebException was caught
HResult=-2146233079
Message=The remote server returned an error: NotFound.
Source=System.Windows
InnerException: System.Net.WebException
HResult=-2146233079
Message=The remote server returned an error: NotFound.
Source=System.Windows
InnerException:
Run Code Online (Sandbox Code Playgroud) 我想将一个文件base64string读入流中作为一个并且我使用下面的代码来读取文件,但是当我看到内存使用量超过900MB时,我通过任务管理器监视它.我错过了什么,我可以看到当我将其读入字符串时,内存使用率会上升,(我已经使用了150 MB的文件来测试它).
stringBuilder Sb= new stringBuilder ();
using (var fs = new FileStream(@"C:\Users\Sanath Kumar\Desktop\s.pdf", FileMode.Open, FileAccess.Read))
{
var buffer = new byte[fs.Length];
fs.Read(buffer, 0, (int)fs.Length);
Sb.Append(Convert.ToBase64String(buffer));
buffer = null;
fs.Flush();
fs.Dispose();
}
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