我正在尝试访问配置文件中的设置,该文件是一系列列出的 xml 元素,如下所示:
<databases>
<database name="DatabaseOne" Value="[value]" />
<database name="DatabaseTwo" Value="[value]" />
</databases>
现在我想访问它。我已经设置了这样的课程:
Public Class DatabaseConfigurationHandler
Inherits ConfigurationSection
<ConfigurationProperty("Databases", IsDefaultCollection:=True)> _
Public ReadOnly Property Databases() As DatabaseCollection
Get
Return CType(Me("Databases"), DatabaseCollection)
End Get
End Property
End Class
Public Class DatabaseCollection
Inherits ConfigurationElementCollection
Protected Overloads Overrides Function CreateNewElement() As ConfigurationElement
Return (New Database())
End Function
Protected Overloads Overrides Function GetElementKey(ByVal element As ConfigurationElement) As Object
Return (CType(element, Database).DatabaseName)
End Function
End Class
Public Class Database
Inherits ConfigurationElement
<ConfigurationProperty("name", IsKey:=True, IsRequired:=True)> _
Public Property DatabaseName() As String
Get
Return Me("name").ToString()
End Get
Set(ByVal Value As String)
Me("name") = Value
End Set
End Property
<ConfigurationProperty("value", IsRequired:=True)> _
Public Property DatabaseValue() As String
Get
Return Me("value").ToString()
End Get
Set(ByVal Value As String)
Me("value") = Value
End Set
End Property
End Class
我希望能够通过元素的名称获取元素并返回值,但我看不到这样做:
Dim config As New DatabaseConfigurationHandler
config = System.Configuration.ConfigurationManager.GetSection("databases/database")
Return config.Databases("DatabaseOne")
我是否缺少一些代码,我做错了什么?以上还有其他错误吗?
Thanks.
这是我几天前所做的非常相似的事情的剪切和粘贴。
Config:
<ListConfigurations>
<lists>
<add Name="blah" EndpointConfigurationName="blah" ListName="blah" ConnectionString="blah" TableName="blah" FieldsCsv="blah" DbFieldsCsv="blah"/>
<add Name="blah2" EndpointConfigurationName="blah" ListName="blah" ConnectionString="blah" TableName="blah" FieldsCsv="blah" DbFieldsCsv="blah"/>
</lists>
</ListConfigurations>
配置部分 C#:
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Configuration;
namespace App
{
/// <summary>
/// Individual list configuration
/// </summary>
class ListConfiguration : ConfigurationElement
{
[ConfigurationProperty("Name", IsKey = true, IsRequired = true)]
public string Name
{
get { return (string)this["Name"]; }
}
[ConfigurationProperty("EndpointConfigurationName", IsRequired = true)]
public string EndpointConfigurationName
{
get { return (string)this["EndpointConfigurationName"]; }
}
[ConfigurationProperty("ListName", IsRequired = true)]
public string ListName
{
get { return (string)this["ListName"]; }
}
[ConfigurationProperty("ConnectionString", IsRequired = true)]
public string ConnectionString
{
get { return (string)this["ConnectionString"]; }
}
[ConfigurationProperty("TableName", IsRequired = true)]
public string TableName
{
get { return (string)this["TableName"]; }
}
[ConfigurationProperty("FieldsCsv", IsRequired = true)]
public string FieldsCsv
{
get { return (string)this["FieldsCsv"]; }
}
[ConfigurationProperty("DbFieldsCsv", IsRequired = true)]
public string DbFieldsCsv
{
get { return (string)this["DbFieldsCsv"]; }
}
}
/// <summary>
/// Collection of list configs
/// </summary>
class ListConfigurationCollection : ConfigurationElementCollection
{
protected override ConfigurationElement CreateNewElement()
{
return new ListConfiguration();
}
protected override object GetElementKey(ConfigurationElement element)
{
return ((ListConfiguration)element).Name;
}
}
/// <summary>
/// Config section
/// </summary>
class ListConfigurationSection : ConfigurationSection
{
[ConfigurationProperty("lists")]
public ListConfigurationCollection Lists
{
get { return (ListConfigurationCollection)this["lists"]; }
}
}
}
以及从主应用程序中获取它的代码:
ListConfigurationSection configSection = null;
try
{
configSection = ConfigurationManager.GetSection("ListConfigurations") as ListConfigurationSection;
}
catch (System.Configuration.ConfigurationErrorsException)
{
}
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