如何从用户控件访问默认设置？

Question

如何从用户控件访问默认设置？

当我使用此代码时

namespace SearchControl{
public partial class SearchControl : UserControl   
{
     string ConncStr = Properties.Settings["myConnectionString"].toString();
}}

未使用

Properties.Settings["myConnectionString"].toString()

我想访问Properties.Settings [“ myConnectionString”]在项目中的用户控件中添加了用户控件。

Answer 1

var config = ConfigurationManager.OpenExeConfiguration(ConfigurationUserLevel.None);
var secGroup = config.SectionGroups["userSettings"]; // or applicationSettings

if (secGroup != null)
{
    var clientSettings = (ClientSettingsSection)secGroup.Sections[0];

    var settingElementCollection = clientSettings.Settings;

    var setting = settingElementCollection.Get(Name);

    var value = setting.Value.ValueXml.InnerText;
}

Answer 2

string conStr = Properties.Settings.Default.myConnectionString;

Answer 3

大多数语句以;而不是}结尾。

namespace SearchControl;

public partial class SearchControl : UserControl   
{
 string ConncStr = Properties.Settings.Default.myConnectionString;
}

请参见https://msdn.microsoft.com/en-us/library/bb397759(v=vs.110).aspx