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WPF新手之自制Snippet —— INotifyPropertyChanged

2010-09-23 22:26 1026 查看

自己做了自己用，参照了MSDN的标准写法，就不多废话了，直接贴上，最后附用法：

先贴类的Snippet——快捷键为notify

<?xml version="1.0" encoding="utf-8" ?>
<CodeSnippets  xmlns="http://schemas.microsoft.com/VisualStudio/2005/CodeSnippet">
<CodeSnippet Format="1.0.0">
<Header>
<Title>notify</Title>
<Shortcut>notify</Shortcut>
<Description>Code snippet for System.Diagnostics.Debug.WriteLine</Description>
<Author>Microsoft Corporation</Author>
<SnippetTypes>
<SnippetType>Expansion</SnippetType>
</SnippetTypes>
</Header>
<Snippet>
<Declarations>
<Literal Editable="true">
<ID>name</ID>
<ToolTip>class name</ToolTip>
<Default>MyClass</Default>
<Function>
</Function>
</Literal>
</Declarations>
<Code Language="csharp"><!--[CDATA[class $name$ : INotifyPropertyChanged
{
$end$
public event PropertyChangedEventHandler PropertyChanged;
private void NotifyPropertyChanged(String info)
{
if (PropertyChanged != null)
{
PropertyChanged(this, new PropertyChangedEventArgs(info));
}
}
}
]]-->
</Code>
</Snippet>
</CodeSnippet>
</CodeSnippets>

再贴成员变量的Snippet ——快捷键为nn

<?xml version="1.0" encoding="utf-8"?>
<CodeSnippets xmlns="http://schemas.microsoft.com/VisualStudio/2005/CodeSnippet">
<CodeSnippet Format="1.0.0">
<Header>
<SnippetTypes>
<SnippetType>Expansion</SnippetType>
</SnippetTypes>
<Title>nn</Title>
<Author>Microsoft Corporation</Author>
<Description>Code snippet for property and backing field and INotifyPropertyChanged</Description>
<HelpUrl>
</HelpUrl>
<Shortcut>nn</Shortcut>
</Header>
<Snippet>
<Declarations>
<Literal Editable="true">
<ID>type</ID>
<ToolTip>Property type</ToolTip>
<Default>int</Default>
<Function>
</Function>
</Literal>
<Literal Editable="true">
<ID>property</ID>
<ToolTip>Property name</ToolTip>
<Default>MyProperty</Default>
<Function>
</Function>
</Literal>
<Literal Editable="true">
<ID>field</ID>
<ToolTip>The variable backing this property</ToolTip>
<Default>myVar</Default>
<Function>
</Function>
</Literal>
</Declarations>
<Code Language="csharp"><!--[CDATA[private $type$ $field$;
public $type$ $property$
{
get { return this.$field$;}
set
{
if(this.$field$ != value)
{
this.$field$ = value;
this.NotifyPropertyChanged("$property$");
}
}
}
$end$]]--></Code>
</Snippet>
</CodeSnippet>
</CodeSnippets>

用法：在VS2010中（08估计也一样）中先键入notify，然后按tab，然后改一下类名，完了按回车，就在回车停下的地方按nn，然后按tab，按顺序改一堆东西，有类型等等，记住按顺序，因为后面的依赖前面的。

默认生成的类：

class MyClass : INotifyPropertyChanged
{
private int myVar;
public int MyProperty
{
get { return this.myVar; }
set
{
if (this.myVar != value)
{
this.myVar = value;
this.NotifyPropertyChanged("MyProperty");
}
}
}

public event PropertyChangedEventHandler PropertyChanged;
private void NotifyPropertyChanged(String info)
{
if (PropertyChanged != null)
{
PropertyChanged(this, new PropertyChangedEventArgs(info));
}
}
}

为什么我要做成两个Snippet呢？因为很可能一个INotifyPropertyChanged类中有好多个变量，这样模块化Snippet比较好。

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标签： wpf function encoding string class null

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