VB.NET 从 My.Settings 获取默认值
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VB.NET get default value from My.Settings
提问by sinDizzy
VB2010. I understand how to save settings and load them from the My.Settings namespace. What I am trying to figure out is how to get the default value of a settings and present it to the user. I don't want to save the setting I just want to show what the current value is and what the default value is. I tried this but I don't think it does what I think it's supposed to do:
VB2010。我了解如何保存设置并从 My.Settings 命名空间加载它们。我想弄清楚的是如何获取设置的默认值并将其呈现给用户。我不想保存设置我只想显示当前值是什么以及默认值是什么。我试过这个，但我认为它没有做我认为它应该做的事情：
Msgbox "Current setting: " & My.Settings.CustLineWidth & vbcrlf & _
"Default setting: " & My.MySettings.Default.CustLineWidth
The default as I have setup in the IDE is 10 but the user changed it to 25. If I run the above code I get
我在 IDE 中设置的默认值为 10，但用户将其更改为 25。如果我运行上面的代码，我会得到
Current setting: 25
Default setting: 25
What I would like is
我想要的是
Current setting: 25
Default setting: 10
Solution: I iterate through all the settings and print out the current value and the default value like this
解决方案：我遍历所有设置并像这样打印出当前值和默认值
For Each prop As Configuration.SettingsPropertyValue In My.Settings.PropertyValues
Debug.Print("Name={0}", prop.Name)
Debug.Print(" Value ={0}", prop.PropertyValue.ToString)
Debug.Print(" Default={0}", prop.Property.DefaultValue.ToString)
Next prop
采纳答案by LarsTech
This worked for me:
这对我有用：
My.Settings.PropertyValues("CustLineWidth").Property.DefaultValue
回答by habil chegeni
Use This Code only :
仅使用此代码：
MsgBox(CStr(My.Settings.Properties.Item("CustLineWidth").DefaultValue))
This code returns default value : with unhandled error
此代码返回默认值：有未处理的错误
My.Settings.PropertyValues("CustLineWidth").Property.DefaultValue
But this one only returns last value before calling "settings.save" method : : with unhandled error
但是这个只在调用“settings.save”方法之前返回最后一个值：：有未处理的错误
My.MySettings.Default.CustLineWidth
回答by Kamaro Lambert
Let's say that you have added this to your settings file, you just need to do something like below
假设您已将此添加到您的设置文件中，您只需要执行以下操作
My.Settings.YOUR_SETTING_NAME
