Mono can't save user settings

问题

I have problems with saving user settings on Mono (Ubuntu). Here is code sample:

private void Form1_Load(object sender, EventArgs e)
{
    string savedText = Properties.Settings.Default.tbText.ToString();
    tbInput.Text = savedText;
}

private void Form1_FormClosing(object sender, FormClosingEventArgs e)
{
    string textToSave = tbInput.Text;
    Properties.Settings.Default.tbText = textToSave;
    Properties.Settings.Default.tbText = Properties.Settings.Default.tbText;
    Properties.Settings.Default.Save();
}

But i receive only empty config like

<?xml version="1.0" encoding="utf-8"?>
<configuration>
  <userSettings />
</configuration>

I've already tried something like

Properties.Settings.Default.tbText = Properties.Settings.Default.tbText;

from here. But still get same result. How can I use settings in Mono?

回答1:

Remove line

Properties.Settings.Default.tbText = Properties.Settings.Default.tbText;

Check you application config file. Probably you have something like this:

<configuration>
  <configSections>
    <sectionGroup name="userSettings" 
                  type="System.Configuration.UserSettingsGroup, System, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089">
      <section name="ExampleApp.Properties.Settings" 
               type="System.Configuration.ClientSettingsSection, System, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089" allowExeDefinition="MachineToLocalUser" requirePermission="false" />
    </sectionGroup>
  </configSections>
  ...
  <appSettings>
    <add key="TestKey1" value="Test1" />
    <add key="TestKey2" value="Test2" />
  </appSettings>
  ...
  <userSettings>
    <ExampleApp.Properties.Settings>
      <setting name="textBox1" serializeAs="String">
        <value />
      </setting>
    </ExampleApp.Properties.Settings>
  </userSettings>
</configuration>

Remove sectionGroup for userSettings.

<sectionGroup name="userSettings" 
              type="System.Configuration.UserSettingsGroup, System, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089">
    <section name="ExampleApp.Properties.Settings" 
             type="System.Configuration.ClientSettingsSection, System, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089" allowExeDefinition="MachineToLocalUser" requirePermission="false" />
</sectionGroup>

Remove also section userSettings.

<userSettings>
  ...
</userSettings>

Delete your local user.config. After first run it will be recreated correctly.

It should work

来源：https://stackoverflow.com/questions/37292416/mono-cant-save-user-settings

标签

mono

settings