wpf wpf中如何给ResourceDictionary动态添加key和value？
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时间：2020-09-13 07:49:17 来源:igfitidea点击:
How to dynamically add key and value to the ResourceDictionary in wpf?
提问by ASHOK A
<Application
xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
x:Class="MultiLanguage.App"
StartupUri="MainWindow.xaml">
<Application.Resources>
<ResourceDictionary>
<ResourceDictionary.MergedDictionaries>
<ResourceDictionary x:Name="LanguageDictionary" Source="/LanguageResources;component/EnglishResources.xaml"/>
</ResourceDictionary.MergedDictionaries>
</ResourceDictionary>
</Application.Resources>
EnglishResources.xaml
英文资源.xaml
<ResourceDictionary
xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
xmlns:sys="clr-namespace:System;assembly=mscorlib">
<sys:String x:Key="add">ADD</sys:String>
<sys:String x:Key="key">Key</sys:String>
<sys:String x:Key="stringValue">String Value</sys:String>
MainWindow.xaml
主窗口.xaml
<Window
xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
x:Class="MultiLanguage.MainWindow"
x:Name="Window"
Title="MainWindow"
Width="640" Height="480">
<Grid x:Name="LayoutRoot" HorizontalAlignment="Center" VerticalAlignment="Center">
<Grid.RowDefinitions>
<RowDefinition Height="Auto"/>
<RowDefinition Height="Auto"/>
<RowDefinition Height="Auto"/>
</Grid.RowDefinitions>
<Grid.ColumnDefinitions>
<ColumnDefinition Width="Auto"/>
<ColumnDefinition Width="Auto"/>
</Grid.ColumnDefinitions>
<Button x:Name="btnAdd" Content="{DynamicResource add}" Height="48" Grid.Column="0" Grid.Row="3" Grid.ColumnSpan="2" Margin="10" Click="btnAdd_Click" />
<TextBlock Text="{DynamicResource key}" Height="40" Width="100" Grid.Column="0" Grid.Row="0" Margin="10"/>
<TextBlock Text="{DynamicResource stringValue}" Height="40" Width="100" Grid.Column="0" Grid.Row="1" Margin="10"/>
<TextBox x:Name="txtKey" Height="40" Width="200" Grid.Column="1" Grid.Row="0" Margin="10"/>
<TextBox x:Name="txtStringValue" Height="40" Width="200" Grid.Column="1" Grid.Row="1" Margin="10"/>
</Grid>
with above code, i get the following window
使用上面的代码，我得到以下窗口
private void btnAdd_Click(object sender, RoutedEventArgs e)
{
AddKeyValue(txtKey.Text, txtStringValue.Text);
}
private void AddKeyValue(object key, object value)
{
// load the resource dictionary
var rd = new System.Windows.ResourceDictionary();
rd.Source = new System.Uri("pack://application:,,,/LanguageResources;component/EnglishResources.xaml", System.UriKind.RelativeOrAbsolute);
// add the new key with value
rd.Add(key, value);
// now you can save the changed resource dictionary
var settings = new System.Xml.XmlWriterSettings();
settings.Indent = true;
var writer = System.Xml.XmlWriter.Create(@"EnglishResources.xaml", settings);
System.Windows.Markup.XamlWriter.Save(rd, writer);
}
If i click Add button the value should be inserted in the resource dictionary which(EnglishResources.xaml) is already i have. But it is not insert. Please help me out.
如果我单击“添加”按钮，该值应该插入到我已经拥有的资源字典（EnglishResources.xaml）中。但它不是插入。请帮帮我。
I need Like
我需要喜欢
<ResourceDictionary
xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
xmlns:sys="clr-namespace:System;assembly=mscorlib">
<sys:String x:Key="add">ADD</sys:String>
<sys:String x:Key="key">Key</sys:String>
<sys:String x:Key="stringValue">String Value</sys:String>
<!-- the value should be inserted here. But not Insert-->
</ResourceDictionary>
After Added
添加后
<ResourceDictionary xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation" xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml" xmlns:s="clr-namespace:System;assembly=mscorlib">
<s:String x:Key="add">ADD</sys:String>
<s:String x:Key="key">Key</sys:String>
<s:String x:Key="stringValue">String Value</sys:String>
<!-- the value should be inserted here. But not Insert-->
</ResourceDictionary>
After i added the value into resource dictionary i get result like above. the sysis changed into to sand name space are merged as a line.
在我将值添加到资源字典后，我得到了如上的结果。在SYS变为以小号和命名空间被合并为一条线。
回答by punker76
you can do it with this simple solution
你可以用这个简单的解决方案来做到这一点
private void AddKeyValue(object key, object value) {
// load the resource dictionary
var rd = new System.Windows.ResourceDictionary();
rd.Source = new System.Uri("pack://application:,,,/YOURAssemblyName;component/EnglishResources.xaml", System.UriKind.RelativeOrAbsolute);
// add the new key with value
//rd.Add(key, value);
if (rd.Contains(key)) {
rd[key] = value;
} else {
rd.Add(key, value);
}
// now you can save the changed resource dictionary
var settings = new System.Xml.XmlWriterSettings();
settings.Indent = true;
var writer = System.Xml.XmlWriter.Create(@"EnglishResources.xaml", settings);
System.Windows.Markup.XamlWriter.Save(rd, writer);
}
Usage
用法
AddKeyValue("NewKey1", "StringValue");
AddKeyValue("NewKey2", 1000);
Hope that helps.
希望有帮助。
