我必须在根设置组中保存2个不同的设置组。看起来应该像这样:
<?xml version="1.0" encoding="utf-8"?>
<configuration>
<configSections>
<sectionGroup name="ROOT_GROUP">
<sectionGroup name="GROUP_1">
........................
some_settings
........................
</sectionGroup>
<sectionGroup name="GROUP_2">
........................
some_other_settings
........................
</sectionGroup>
</sectionGroup>
</configSections>
................................
other_system_tags
................................
</configuration>
细微之处在于,我必须在代码中的不同位置逐个保存它。 (例如,GROUP_1可以是连接字符串,而GROUP_2是一些环境设置,它们都在我的应用程序的不同部分中被用户填充)
我做了这个简单的测试课,以获得预期的结果
[TestFixture]
public class Tttt
{
private string ROOT_GROUP = "ROOT_GROUP";
private string GROUP_1 = "GROUP_1";
private string GROUP_2 = "GROUP_2";
[Test]
public void SaveSettingsGroups()
{
SaveGroup1();
SaveGroup2();
Assert.True(true);
}
private Configuration GetConfig()
{
var configFilePath = AppDomain.CurrentDomain.SetupInformation.ConfigurationFile;
var map = new ExeConfigurationFileMap { ExeConfigFilename = configFilePath };
var config = ConfigurationManager.OpenMappedExeConfiguration(map, ConfigurationUserLevel.None);
return config;
}
private void SaveGroup1()
{
var config = GetConfig();
var root = new UserSettingsGroup();
config.SectionGroups.Add(ROOT_GROUP, root);
config.Save(ConfigurationSaveMode.Modified);
ConfigurationManager.RefreshSection(root.Name);
var nested = new UserSettingsGroup();
root.SectionGroups.Add(GROUP_1, nested);
config.Save(ConfigurationSaveMode.Modified);
ConfigurationManager.RefreshSection(nested.Name);
}
private void SaveGroup2()
{
var config = GetConfig();
var root = config.GetSectionGroup(ROOT_GROUP);
var nested = new UserSettingsGroup();
root.SectionGroups.Add(GROUP_2, nested);
config.Save(ConfigurationSaveMode.Modified);
ConfigurationManager.RefreshSection(nested.Name);
}
}
但是由于某些原因,此代码的结果不同
<?xml version="1.0" encoding="utf-8"?>
<configuration>
<configSections>
<sectionGroup name="ROOT_GROUP">
<sectionGroup name="GROUP_1">
........................
some_settings
........................
</sectionGroup>
</sectionGroup>
<sectionGroup name="ROOT_GROUP">
<sectionGroup name="GROUP_2">
........................
some_other_settings
........................
</sectionGroup>
</sectionGroup>
</configSections>
................................
other_system_tags
................................
</configuration>
ROOT_GROUP节点已复制,当然Visual Studio抛出一个例外,即ROOT_GROUP已经存在。显然,当我将新的嵌套组添加到现有的根组然后保存时,我的问题隐藏在方法SaveGroup2()中。但是为什么?
UPD 我刚刚添加了新方法
private void SaveGroup3()
{
var config = GetConfig();
var root = config.GetSectionGroup(ROOT_GROUP);
var nested1 = root.SectionGroups.Get(0);
var nested2 = new UserSettingsGroup();
var nested3 = new UserSettingsGroup();
nested1.SectionGroups.Add("GROUP_2", nested2);
root.SectionGroups.Add("GROUP_3", nested3);
config.Save(ConfigurationSaveMode.Modified);
ConfigurationManager.RefreshSection(nested2.Name);
ConfigurationManager.RefreshSection(nested3.Name);
}
并在测试中替换它
[Test]
public void SaveSettingsGroups()
{
SaveGroup1();
SaveGroup3();
Assert.True(true);
}
并得到了这种奇怪的行为
<sectionGroup name="ROOT_GROUP">
<sectionGroup name="GROUP_1">
<sectionGroup name="GROUP_2">
</sectionGroup>
</sectionGroup>
<sectionGroup name="GROUP_3">
</sectionGroup>
</sectionGroup>
如您所见,奇怪的是结果是完全可以预期的。 ROOT_GROUP不是重复的,因为我需要它,但是为什么它在SaveGroup2()中呢?我是否错过了SaveGroup2()中的某些内容?
UPD2-HACK
只是尝试了一个简单的想法-如果在添加新的嵌套元素之前清除root_group会怎样?
private void SaveGroup2()
{
var config = GetConfig();
var root = config.GetSectionGroup(ROOT_GROUP);
var nested = new ConfigurationSectionGroup();
//Copy exiting nested groups to array
var gr = new ConfigurationSectionGroup[5];
root.SectionGroups.CopyTo(gr,0);
gr[1] = nested;
//<!----
root.SectionGroups.Clear();
config.Save(ConfigurationSaveMode.Modified);
ConfigurationManager.RefreshSection(root.Name);
root.SectionGroups.Add(gr[0].Name, gr[0]);
root.SectionGroups.Add(GROUP_2, gr[1]);
config.Save(ConfigurationSaveMode.Modified);
ConfigurationManager.RefreshSection(root.Name);
}
您怎么猜-它有效!
<sectionGroup name="ROOT_GROUP">
<sectionGroup name="GROUP_1" type="System.Configuration.UserSettingsGroup, System, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089" >
</sectionGroup>
<sectionGroup name="GROUP_2" type="System.Configuration.ConfigurationSectionGroup, System.Configuration, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a" >
</sectionGroup>
</sectionGroup>
我认为它看起来像是个错误,或者我错过了一些隐藏的东西。有人可以向我解释我做错了什么吗?
答案 0 :(得分:1)
花了我一段时间才弄清楚发生了什么,而tl; dr,在我看来,框架代码本身就有问题,尤其是在{类中的method WriteUnwrittenConfigDeclarationsRecursive(SectionUpdates declarationUpdates, XmlUtilWriter utilWriter, int linePosition, int indent, bool skipFirstIndent)
{1}}。我不想写长篇小说,但是如果您希望可以调试.Net框架代码并亲自了解一下。
您可以通过以下方式修复代码:
1。将所有组保存在一起
MgmtConfigurationRecord
2。在添加新的群组项目之前,先删除现有的群组项目
private void SaveGroups()
{
var config = GetConfig();
var root = new ConfigurationSectionGroup();
config.SectionGroups.Add(ROOT_GROUP, root);
config.Save(ConfigurationSaveMode.Modified);
ConfigurationManager.RefreshSection(root.Name);
var nested = new UserSettingsGroup();
root.SectionGroups.Add(GROUP_1, nested);
nested = new UserSettingsGroup();
root.SectionGroups.Add(GROUP_2, nested);
config.Save(ConfigurationSaveMode.Modified);
ConfigurationManager.RefreshSection(root.Name);
}
答案 1 :(得分:0)
在第一次更新中,您将GROUP_2添加到了root下的第一个条目下:
//nested1 is now the first entry under root due to Get(0)
var nested1 = root.SectionGroups.Get(0);
var nested2 = new UserSettingsGroup();
var nested3 = new UserSettingsGroup();
//I think you meant root here instead of nested1.
nested1.SectionGroups.Add("GROUP_2", nested2);