我的C＃项目中有几个字符串集合存储在“设置”中。在这个项目的开头，我初始化了这些集合，包含20个值，都是0。最近我意识到我实际上每个集合中需要大约100个0，所以我去了每个集合再添加80个。这工作正常，但现在我看到了奇怪的事情。
我得到了一个超出范围的异常，当我跟着它时，它试图在我的一个字符串集合中访问索引为20的项目。嗯。那应该不是这样的，所以我去检查我的stringCollection，它显然太小而无法处理20的索引，而且确实还是我的所有100个仍然存在。那么在断点处我将鼠标悬停在我的字符串集合上，它显示.count = 20.什么？我可以在settings.settings文件中看到100 0。我算好了吗？
然后我去删除了那个字符串集合，创建了一个带有SAME名称和相同内容的新字符串，它没问题。但是我不想在我的设置中为每个字符串集合重做这个。
有没有人碰到过这个？这是一个错误吗？为什么如果我删除该集合然后重新制作它，它会突然起作用？
编辑：我的配置文件
<?xml version="1.0" encoding="utf-8"?>
<configuration>
<configSections>
<sectionGroup name="userSettings" type="System.Configuration.UserSettingsGroup, System, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089" >
<section name="OPCServer_Simulator.Properties.Settings" type="System.Configuration.ClientSettingsSection, System, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089" allowExeDefinition="MachineToLocalUser" requirePermission="false" />
</sectionGroup>
</configSections>
<startup><supportedRuntime version="v4.0" sku=".NETFramework,Version=v4.5"/></startup><userSettings>
<OPCServer_Simulator.Properties.Settings>
<setting name="portName" serializeAs="String">
<value>COM1</value>
</setting>
<setting name="numItems" serializeAs="String">
<value>0</value>
</setting>
<setting name="recipeCode" serializeAs="Xml">
<value>
<ArrayOfString xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xmlns:xsd="http://www.w3.org/2001/XMLSchema">
<string>0</string>
<string>0</string>
<string>0</string>
<string>0</string>
<string>0</string>
<string>0</string>
<string>0</string>
<string>0</string>
<string>0</string>
<string>0</string>
<string>0</string>
<string>0</string>
<string>0</string>
<string>0</string>
<string>0</string>
<string>0</string>
<string>0</string>
<string>0</string>
<string>0</string>
<string>0</string>
<string>0</string>
<string>0</string>
<string>0</string>
<string>0</string>
<string>0</string>
<string>0</string>
<string>0</string>
<string>0</string>
<string>0</string>
<string>0</string>
<string>0</string>
<string>0</string>
<string>0</string>
<string>0</string>
<string>0</string>
<string>0</string>
<string>0</string>
<string>0</string>
<string>0</string>
<string>0</string>
<string>0</string>
<string>0</string>
<string>0</string>
<string>0</string>
<string>0</string>
<string>0</string>
<string>0</string>
<string>0</string>
<string>0</string>
<string>0</string>
<string>0</string>
<string>0</string>
<string>0</string>
<string>0</string>
<string>0</string>
<string>0</string>
<string>0</string>
<string>0</string>
<string>0</string>
<string>0</string>
<string>0</string>
<string>0</string>
<string>0</string>
<string>0</string>
<string>0</string>
<string>0</string>
<string>0</string>
<string>0</string>
<string>0</string>
<string>0</string>
<string>0</string>
<string>0</string>
<string>0</string>
<string>0</string>
<string>0</string>
<string>0</string>
<string>0</string>
<string>0</string>
<string>0</string>
<string>0</string>
<string>0</string>
<string>0</string>
<string>0</string>
<string>0</string>
<string>0</string>
<string>0</string>
<string>0</string>
<string>0</string>
<string>0</string>
<string>0</string>
<string>0</string>
<string>0</string>
<string>0</string>
<string>0</string>
<string>0</string>
<string>0</string>
<string>0</string>
<string>0</string>
<string>0</string>
<string>0</string>
</ArrayOfString>
</value>
</setting>
<setting name="nomThick" serializeAs="Xml">
<value>
<ArrayOfString xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xmlns:xsd="http://www.w3.org/2001/XMLSchema">
<string>0</string>
<string>0</string>
<string>0</string>
<string>0</string>
<string>0</string>
<string>0</string>
<string>0</string>
<string>0</string>
<string>0</string>
<string>0</string>
<string>0</string>
<string>0</string>
<string>0</string>
<string>0</string>
<string>0</string>
<string>0</string>
<string>0</string>
<string>0</string>
<string>0</string>
<string>0</string>
<string>0</string>
<string>0</string>
<string>0</string>
<string>0</string>
<string>0</string>
<string>0</string>
<string>0</string>
<string>0</string>
<string>0</string>
<string>0</string>
<string>0</string>
<string>0</string>
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<string>0</string>
<string>0</string>
<string>0</string>
<string>0</string>
<string>0</string>
<string>0</string>
<string>0</string>
<string>0</string>
<string>0</string>
<string>0</string>
<string>0</string>
<string>0</string>
<string>0</string>
<string>0</string>
<string>0</string>
<string>0</string>
<string>0</string>
<string>0</string>
<string>0</string>
<string>0</string>
<string>0</string>
<string>0</string>
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<string>0</string>
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<string>0</string>
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<string>0</string>
<string>0</string>
<string>0</string>
<string>0</string>
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<string>0</string>
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<string>0</string>
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<string>0</string>
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<string>0</string>
<string>0</string>
<string>0</string>
<string>0</string>
<string>0</string>
<string>0</string>
<string>0</string>
<string>0</string>
<string>0</string>
<string>0</string>
<string>0</string>
<string>0</string>
<string>0</string>
<string>0</string>
<string>0</string>
<string>0</string>
<string>0</string>
<string>0</string>
<string>0</string>
<string>0</string>
<string>0</string>
<string>0</string>
<string>0</string>
</ArrayOfString>
</value>
</setting>
<setting name="nomWidth" serializeAs="Xml">
<value>
<ArrayOfString xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xmlns:xsd="http://www.w3.org/2001/XMLSchema">
<string>0</string>
<string>0</string>
<string>0</string>
<string>0</string>
<string>0</string>
<string>0</string>
<string>0</string>
<string>0</string>
<string>0</string>
<string>0</string>
<string>0</string>
<string>0</string>
<string>0</string>
<string>0</string>
<string>0</string>
<string>0</string>
<string>0</string>
<string>0</string>
<string>0</string>
<string>0</string>
<string>0</string>
<string>0</string>
<string>0</string>
<string>0</string>
<string>0</string>
<string>0</string>
<string>0</string>
<string>0</string>
<string>0</string>
<string>0</string>
<string>0</string>
<string>0</string>
<string>0</string>
<string>0</string>
<string>0</string>
<string>0</string>
<string>0</string>
<string>0</string>
<string>0</string>
<string>0</string>
<string>0</string>
<string>0</string>
<string>0</string>
<string>0</string>
<string>0</string>
<string>0</string>
<string>0</string>
<string>0</string>
<string>0</string>
<string>0</string>
<string>0</string>
<string>0</string>
<string>0</string>
<string>0</string>
<string>0</string>
<string>0</string>
<string>0</string>
<string>0</string>
<string>0</string>
<string>0</string>
<string>0</string>
<string>0</string>
<string>0</string>
<string>0</string>
<string>0</string>
<string>0</string>
<string>0</string>
<string>0</string>
<string>0</string>
<string>0</string>
<string>0</string>
<string>0</string>
<string>0</string>
<string>0</string>
<string>0</string>
<string>0</string>
<string>0</string>
<string>0</string>
<string>0</string>
<string>0</string>
<string>0</string>
<string>0</string>
<string>0</string>
<string>0</string>
<string>0</string>
<string>0</string>
<string>0</string>
<string>0</string>
<string>0</string>
<string>0</string>
<string>0</string>
<string>0</string>
<string>0</string>
<string>0</string>
<string>0</string>
<string>0</string>
<string>0</string>
<string>0</string>
<string>0</string>
<string>0</string>
</ArrayOfString>
</value>
</setting>
<setting name="meas9" serializeAs="Xml">
<value>
<ArrayOfString xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xmlns:xsd="http://www.w3.org/2001/XMLSchema">
<string>0</string>
<string>0</string>
<string>0</string>
<string>0</string>
<string>0</string>
<string>0</string>
<string>0</string>
<string>0</string>
<string>0</string>
<string>0</string>
<string>0</string>
<string>0</string>
<string>0</string>
<string>0</string>
<string>0</string>
<string>0</string>
<string>0</string>
<string>0</string>
<string>0</string>
<string>0</string>
<string>0</string>
<string>0</string>
<string>0</string>
<string>0</string>
<string>0</string>
<string>0</string>
<string>0</string>
<string>0</string>
<string>0</string>
<string>0</string>
<string>0</string>
<string>0</string>
<string>0</string>
<string>0</string>
<string>0</string>
<string>0</string>
<string>0</string>
<string>0</string>
<string>0</string>
<string>0</string>
<string>0</string>
<string>0</string>
<string>0</string>
<string>0</string>
<string>0</string>
<string>0</string>
<string>0</string>
<string>0</string>
<string>0</string>
<string>0</string>
<string>0</string>
<string>0</string>
<string>0</string>
<string>0</string>
<string>0</string>
<string>0</string>
<string>0</string>
<string>0</string>
<string>0</string>
<string>0</string>
<string>0</string>
<string>0</string>
<string>0</string>
<string>0</string>
<string>0</string>
<string>0</string>
<string>0</string>
<string>0</string>
<string>0</string>
<string>0</string>
<string>0</string>
<string>0</string>
<string>0</string>
<string>0</string>
<string>0</string>
<string>0</string>
<string>0</string>
<string>0</string>
<string>0</string>
<string>0</string>
<string>0</string>
<string>0</string>
<string>0</string>
<string>0</string>
<string>0</string>
<string>0</string>
<string>0</string>
<string>0</string>
<string>0</string>
<string>0</string>
<string>0</string>
<string>0</string>
<string>0</string>
<string>0</string>
<string>0</string>
<string>0</string>
<string>0</string>
<string>0</string>
<string>0</string>
<string>0</string>
</ArrayOfString>
</value>
</setting> //you get the idea
</OPCServer_Simulator.Properties.Settings>
</userSettings>
</configuration>
编辑2：我的for循环导致他出现问题
for (int k = 0; k <= 99; k++)
{
for (int i = 1; i <= 20; i++) //adding the specified number of items to OPC server
{
var value = Properties.Settings.Default["meas" + i] as System.Collections.Specialized.StringCollection;
value[k] = "0";
}
var dataSet = Properties.Settings.Default["dateTime"] as System.Collections.Specialized.StringCollection;
dataSet[k] = " ";
dataSet = Properties.Settings.Default["recipeCode"] as System.Collections.Specialized.StringCollection;
dataSet[k] = "0";
dataSet = Properties.Settings.Default["nomWidth"] as System.Collections.Specialized.StringCollection;
dataSet[k] = "0";
dataSet = Properties.Settings.Default["nomThick"] as System.Collections.Specialized.StringCollection;
dataSet[k] = "0";
}