我创建了非常小的 WPF 应用程序并面临一个问题。我有以下课程。
员工.cs
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
namespace StaticResourceVsDynamicResource
{
public class Employee
{
public string strName;
public int nId;
public Employee()
{
strName = "Default name";
nId = -1;
}
public string Name
{
get{return strName;}set{strName = value;}
}
public int ID
{
get{return nId;}set{nId = value;}
}
}
}
MainWindow.xamal.cs
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Windows;
using System.Windows.Controls;
using System.Windows.Data;
using System.Windows.Documents;
using System.Windows.Input;
using System.Windows.Media;
using System.Windows.Media.Imaging;
using System.Windows.Navigation;
using System.Windows.Shapes;
namespace StaticResourceVsDynamicResource
{
/// <summary>
/// Interaction logic for MainWindow.xaml
/// </summary>
public partial class MainWindow : Window
{
public MainWindow()
{
InitializeComponent();
}
private void button1_Click(object sender, RoutedEventArgs e)
{
this.Resources["objEmployee"] = new Employee { Name = "Changed employee", ID = 100};
this.Resources.Add("myBrush",new SolidColorBrush(SystemColors.GrayTextColor));
}
}
}
主窗口.xamal
<Window x:Class="StaticResourceVsDynamicResource.MainWindow"
xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
xmlns:local="clr-namespace:StaticResourceVsDynamicResource"
xmlns:sys="clr-namespace:System;assembly=mscorlib"
Title="MainWindow" Height="350" Width="525">
<Window.Resources>
<x:ArrayExtension Type="{x:Type sys:String}" x:Key="objNames">
<sys:String>A1</sys:String>
<sys:String>A2</sys:String>
</x:ArrayExtension>
<local:Employee x:Key="objEmployee"></local:Employee>
</Window.Resources>
<Grid>
<Grid Height="100" HorizontalAlignment="Left" Margin="281,12,0,0" Name="grid3" VerticalAlignment="Top" Width="200" >
<ComboBox ItemsSource="{StaticResource ResourceKey=objNames}" Height="23" HorizontalAlignment="Left" Margin="48,37,0,0" Name="comboBox1" VerticalAlignment="Top" Width="120" />
</Grid>
</Grid>
上面的 xaml 代码很有趣。当我构建此代码时,我没有收到任何错误。无论出于何种原因,我只是改变了 and 的位置,<x:ArrayExtension>
然后<local:Employee>
我开始低于错误。
The name 'InitializeComponent' does not exist in the current context
当我在此<local:Employee>
之前声明时,<x:ArrayExtenion>
只有我收到此错误。我确信这与命名空间有关,但我无法弄清楚。请参阅以下导致编译错误的代码。
<Window.Resources>
<local:Employee x:Key="objEmployee"></local:Employee>
<x:ArrayExtension Type="{x:Type sys:String}" x:Key="objNames">
<sys:String>A1</sys:String>
<sys:String>A2</sys:String>
</x:ArrayExtension>
</Window.Resources>
任何人都可以帮忙吗?似乎是一个奇怪的问题,但它是......
问候,赫曼特