Converter 類別

定義

public ref class Converter : System::Configuration::ConfigurationElement

public class Converter : System.Configuration.ConfigurationElement

type Converter = class
    inherit ConfigurationElement

Public Class Converter
Inherits ConfigurationElement

繼承

Object

ConfigurationElement

Converter

範例

以下設定檔摘錄展示了如何宣告式地指定類別屬性 Converter 的值。

<system.web.extensions>  
  <scripting>  
    <webServices>  
      <jsonSerialization>  
        <converters>  
          <add name="ConvertMe" type="Acme.SubAcme.ConvertMeTypeConverter" />  
        </converters>  
      </jsonSerialization>  
    </webServices>  
  </scripting>  
</system.web.extensions>  

以下範例示範如何以程式化方式存取 Converter 。

// Get the Web application configuration.
System.Configuration.Configuration configuration =
    WebConfigurationManager.OpenWebConfiguration("/aspnetTest");

// Get the external JSON section.
ScriptingJsonSerializationSection jsonSection =
    (ScriptingJsonSerializationSection)configuration.GetSection(
    "system.web.extensions/scripting/webServices/jsonSerialization");

//Get the converters collection.
ConvertersCollection converters =
    jsonSection.Converters;

if ((converters != null) && converters.Count > 0)
{
    // Get the first registered converter.
    Converter converterElement = converters[0];
}

' Get the Web application configuration.
Dim configuration As System.Configuration.Configuration = _
    WebConfigurationManager.OpenWebConfiguration("/aspnetTest")

' Get the external JSON section.
Dim jsonSection As ScriptingJsonSerializationSection = _
    CType(configuration.GetSection( _
        "system.web.extensions/scripting/webServices/jsonSerialization"), _
        ScriptingJsonSerializationSection)

'Get the converters collection.
Dim converters As ConvertersCollection = _
    jsonSection.Converters

If Not (converters Is Nothing) AndAlso _
    converters.Count > 0 Then
    ' Get the first registered converter.
    Dim converterElement As Converter = converters(0)
End If

備註

Converter類別允許您程式化存取並修改與 AJAX 啟用的 ASP.NET 應用程式所使用的轉換器相關的設定。

要建立自訂轉換功能，你可以建立一個繼承自該 JavaScriptConverter 類別的類別。 轉換器建立完成後，你可以將其註冊到網頁應用程式的設定檔中使用。

另請參閱

• JavaScriptConverter