问题
I have this in a web.config :
<MySection>
<Setting1 Value="10" />
<Setting2 Value="20" />
<Setting3 Value="30" />
<Setting4 Value="40" />
</MySection>
I'd like read the all section "MySection" and get all value to a List<string>
(ex : "10","20","30")
Thanks,
回答1:
First of all, I recommend use to use Unity Configuration.
Code:
public class MySection : ConfigurationSection
{
protected static ConfigurationPropertyCollection properties = new ConfigurationPropertyCollection();
private static ConfigurationProperty propElements = new ConfigurationProperty("elements", typeof(MyElementCollection), null, ConfigurationPropertyOptions.IsRequired | ConfigurationPropertyOptions.IsDefaultCollection);
static BotSection()
{
properties.Add(propElements);
}
[ConfigurationProperty("elements", DefaultValue = null, IsRequired = true)]
[ConfigurationCollection(typeof(MyElementCollection), AddItemName = "add", ClearItemsName = "clear", RemoveItemName = "remove")]
public MyElementCollection Elements
{
get
{
return (MyElementCollection)this[propElements];
}
set
{
this[propElements] = value;
}
}
}
public class MyElementCollection : ConfigurationElementCollection,
IEnumerable<ConfigurationElement> // most important difference with default solution
{
public void Add(MyElement element)
{
base.BaseAdd(element);
}
public void Clear()
{
base.BaseClear();
}
protected override ConfigurationElement CreateNewElement()
{
return new MyElement();
}
protected override object GetElementKey(ConfigurationElement element)
{
return ((MyElement)element).Id;
}
IEnumerator<MyElement> IEnumerable<MyElement>.GetEnumerator()
{
return this.OfType<MyElement>().GetEnumerator();
}
}
public class MyElement : ConfigurationElement
{
protected static ConfigurationPropertyCollection properties = new ConfigurationPropertyCollection();
private static ConfigurationProperty propValue= new ConfigurationProperty("value", typeof(int), -1, ConfigurationPropertyOptions.IsRequired);
public int Value
{
get
{
return (int)this[propValue];
}
set
{
this[propValue] = value;
}
}
}
Config:
<configuration>
<configSections>
<section name="MySection" type="MySection, MyAssembly"/>
</configSections>
<MySection>
<elements>
<clear />
<add value="10" />
<remove value="10" />
<add value="20" />
<add value="30" />
</elements>
</MySection>
</configuration>
回答2:
I'd recommend you take a look at the excellent open source Configuration Section Designer project on CodePlex. It allows you to create custom configuration sections using a designer hosted in Visual Studio.
For example, a custom configuration section design like this:
will result in a configuration file like this:<?xml version="1.0"?>
<configuration>
<configSections>
<section name="MySection" type="MyNamespace.MySection, MyAssembly"/>
</configSections>
<MySection xmlns="urn:MyNamespace">
<MySetting Name="Test1" Value="One" />
<MySetting Name="Test2" Value="Two" />
</MySection>
</configuration>
which can be programmatically consumed like this:
foreach (MySetting setting in MySection.Instance.Items)
{
Console.WriteLine("{0}: {1}", setting.Name, setting.Value);
}
来源:https://stackoverflow.com/questions/7991252/read-web-config-section-to-list