如何从C#中的app.config获取一些元素?
基于我的app.config,我希望能够获得列的元素,如下面第3-5行中的示例所示。我应该如何编写代码来实现这一点。如果我需要更改app.config,我会这样做如何从C#中的app.config获取一些元素?,c#,c#-4.0,app-config,configurationmanager,C#,C# 4.0,App Config,Configurationmanager,基于我的app.config,我希望能够获得列的元素,如下面第3-5行中的示例所示。我应该如何编写代码来实现这一点。如果我需要更改app.config,我会这样做 1. var bounceProviders = ConfigurationManager.GetSection("BounceProviders") as BounceProvidersSection; 2. var providerColumns = bounceProviders.Providers[0].Columns; 3.
1. var bounceProviders = ConfigurationManager.GetSection("BounceProviders") as BounceProvidersSection;
2. var providerColumns = bounceProviders.Providers[0].Columns;
3. var emailColumn = providerColumns.Email;
4. var dateColumn = providerColumns.Date;
5. var messageColumn = providerColumns.Message;
app.config
<BounceProviders>
<Providers>
<Provider Name="p1">
<Columns>
<Email Name="My Email" />
<Date Name="My Date" />
<Message Name="My Message" />
</Columns>
</Provider>
<Provider Name="p2">
<Columns />
</Provider>
</Providers>
</BounceProviders>
配置部分
public class BounceProvidersSection : ConfigurationSection
{
[ConfigurationCollection(typeof(ConfigCollection<BounceProviderConfig>), AddItemName = "Provider")]
[ConfigurationProperty("Providers", IsRequired = true)]
public ConfigCollection<BounceProviderConfig> Providers
{
get { return (ConfigCollection<BounceProviderConfig>)this["Providers"]; }
set { this["Providers"] = value; }
}
}
public class BounceProviderConfig : ConfigurationElement
{
[ConfigurationProperty("Name", IsRequired = true)]
public string Name
{
get { return (string)this["Name"]; }
set { this["Name"] = value; }
}
}
public class ConfigCollection<T> : ConfigurationElementCollection
where T : ConfigurationElement, new()
{
protected override ConfigurationElement CreateNewElement()
{
return new T();
}
protected override object GetElementKey( ConfigurationElement element )
{
return element.GetHashCode();
}
public T this[int index]
{
get
{
return ( T )BaseGet( index );
}
set
{
if ( BaseGet( index ) != null )
{
BaseRemoveAt( index );
}
BaseAdd( index, value );
}
}
new public T this[string Name]
{
get
{
return ( T )BaseGet( Name );
}
}
}
公共类BounceProviders部分:配置部分
{
[ConfigurationCollection(typeof(ConfigCollection),AddItemName=“Provider”)]
[配置属性(“提供程序”,IsRequired=true)]
公共集合提供程序
{
获取{return(ConfigCollection)this[“Providers”];}
设置{this[“Providers”]=value;}
}
}
公共类BounceProviderConfig:ConfigurationElement
{
[配置属性(“名称”,IsRequired=true)]
公共字符串名
{
获取{return(string)this[“Name”];}
设置{this[“Name”]=value;}
}
}
ConfigCollection
public class BounceProvidersSection : ConfigurationSection
{
[ConfigurationCollection(typeof(ConfigCollection<BounceProviderConfig>), AddItemName = "Provider")]
[ConfigurationProperty("Providers", IsRequired = true)]
public ConfigCollection<BounceProviderConfig> Providers
{
get { return (ConfigCollection<BounceProviderConfig>)this["Providers"]; }
set { this["Providers"] = value; }
}
}
public class BounceProviderConfig : ConfigurationElement
{
[ConfigurationProperty("Name", IsRequired = true)]
public string Name
{
get { return (string)this["Name"]; }
set { this["Name"] = value; }
}
}
public class ConfigCollection<T> : ConfigurationElementCollection
where T : ConfigurationElement, new()
{
protected override ConfigurationElement CreateNewElement()
{
return new T();
}
protected override object GetElementKey( ConfigurationElement element )
{
return element.GetHashCode();
}
public T this[int index]
{
get
{
return ( T )BaseGet( index );
}
set
{
if ( BaseGet( index ) != null )
{
BaseRemoveAt( index );
}
BaseAdd( index, value );
}
}
new public T this[string Name]
{
get
{
return ( T )BaseGet( Name );
}
}
}
公共类ConfigCollection:ConfigurationElementCollection
其中T:ConfigurationElement,new()
{
受保护的覆盖ConfigurationElement CreateNewElement()
{
返回新的T();
}
受保护的覆盖对象GetElementKey(ConfigurationElement元素)
{
返回元素。GetHashCode();
}
公共T此[int索引]
{
得到
{
返回(T)BaseGet(索引);
}
设置
{
if(BaseGet(index)!=null)
{
BaseRemoveAt(索引);
}
BaseAdd(索引、值);
}
}
此[字符串名称]
{
得到
{
return(T)BaseGet(Name);
}
}
}
sdf我想出来了
public class BounceProvidersSection : ConfigurationSection
{
[ConfigurationCollection(typeof(ConfigCollection<BounceProviderConfig>), AddItemName = "Provider")]
[ConfigurationProperty("Providers", IsRequired = true)]
public ConfigCollection<BounceProviderConfig> Providers
{
get { return (ConfigCollection<BounceProviderConfig>)this["Providers"]; }
set { this["Providers"] = value; }
}
}
public class BounceProviderConfig : ConfigurationElement
{
[ConfigurationProperty("Id", IsRequired = true)]
public int Id
{
get { return (int)this["Id"]; }
set { this["Id"] = value; }
}
[ConfigurationProperty("Columns", IsRequired = false)]
public BounceProviderColumns Columns
{
get { return (BounceProviderColumns)this["Columns"]; }
set { this["Columns"] = value; }
}
public static BounceProviderConfig GetByProviderId(int providerId)
{
var section = ConfigUtils.GetConfigurationSection<BounceProvidersSection>("BounceProviders");
foreach (BounceProviderConfig provider in section.Providers)
{
if (provider.Id == providerId)
return provider;
}
return null;
}
}
public class BounceProviderColumns : ConfigurationElement
{
[ConfigurationProperty("Email", IsRequired = true)]
public ColumnConfig Email
{
get { return (ColumnConfig)this["Email"]; }
set { this["Email"] = value; }
}
[ConfigurationProperty("Date", IsRequired = true)]
public DateColumnConfig Date
{
get { return (DateColumnConfig)this["Date"]; }
set { this["Date"] = value; }
}
[ConfigurationProperty("Message", IsRequired = true)]
public ColumnConfig Message
{
get { return (ColumnConfig)this["Message"]; }
set { this["Message"] = value; }
}
}
public class ColumnConfig : ConfigurationElement
{
[ConfigurationProperty("Name", IsRequired = true)]
public string Name
{
get { return (string)this["Name"]; }
set { this["Name"] = value; }
}
}
公共类BounceProviders部分:配置部分
{
[ConfigurationCollection(typeof(ConfigCollection),AddItemName=“Provider”)]
[配置属性(“提供程序”,IsRequired=true)]
公共集合提供程序
{
获取{return(ConfigCollection)this[“Providers”];}
设置{this[“Providers”]=value;}
}
}
公共类BounceProviderConfig:ConfigurationElement
{
[ConfigurationProperty(“Id”,IsRequired=true)]
公共整数Id
{
获取{return(int)this[“Id”];}
设置{this[“Id”]=value;}
}
[配置属性(“列”,IsRequired=false)]
公共BounceProviderColumns
{
获取{return(BounceProviderColumns)this[“Columns”];}
设置{this[“Columns”]=value;}
}
公共静态BounceProviderConfig GetByProviderId(int providerId)
{
var section=ConfigUtils.GetConfigurationSection(“BounceProviders”);
foreach(第.Providers节中的BounceProviderConfig提供程序)
{
if(provider.Id==providerId)
退货供应商;
}
返回null;
}
}
公共类BounceProviderColumns:ConfigurationElement
{
[ConfigurationProperty(“电子邮件”,IsRequired=true)]
公共配置电子邮件
{
获取{return(ColumnConfig)this[“Email”];}
设置{this[“Email”]=value;}
}
[配置属性(“日期”,IsRequired=true)]
公共日期列配置日期
{
获取{return(DateColumnConfig)this[“Date”];}
设置{this[“Date”]=value;}
}
[配置属性(“消息”,IsRequired=true)]
公共列配置消息
{
获取{return(ColumnConfig)this[“Message”];}
设置{this[“Message”]=value;}
}
}
公共类ColumnConfig:ConfigurationElement
{
[配置属性(“名称”,IsRequired=true)]
公共字符串名
{
获取{return(string)this[“Name”];}
设置{this[“Name”]=value;}
}
}
一点注意:返回元素。GetHashCode()
:这是不正确的,哈希代码不是唯一的。您的代码可能会在此处出现异常。