ConnectionStringSettingsCollection.Remove 方法
定义
重要
一些信息与预发行产品相关，相应产品在发行之前可能会进行重大修改。 对于此处提供的信息，Microsoft 不作任何明示或暗示的担保。
从集合中移除 ConnectionStringSettings 对象。
重载
| Remove(ConnectionStringSettings) |
从集合中移除指定的 ConnectionStringSettings 对象。 |
| Remove(String) |
从集合中移除指定的 ConnectionStringSettings 对象。 |
Remove(ConnectionStringSettings)
从集合中移除指定的 ConnectionStringSettings 对象。
public:
void Remove(System::Configuration::ConnectionStringSettings ^ settings);public void Remove (System.Configuration.ConnectionStringSettings settings);member this.Remove : System.Configuration.ConnectionStringSettings -> unitPublic Sub Remove (settings As ConnectionStringSettings)参数
- settings
- ConnectionStringSettings
集合中的 ConnectionStringSettings 对象。
示例
以下示例演示如何从集合中删除指定的 ConnectionStringSettings 对象。
static void RemoveConnectionStrings()
{
try
{
System.Configuration.Configuration config =
ConfigurationManager.OpenExeConfiguration(
ConfigurationUserLevel.None);
// Clear the connection strings collection.
ConnectionStringsSection csSection =
config.ConnectionStrings;
ConnectionStringSettingsCollection csCollection =
csSection.ConnectionStrings;
// Get the connection string setting element
// with the specified name.
ConnectionStringSettings cs =
csCollection["ConnStr0"];
// Remove it.
if (cs != null)
{
// Remove the element.
csCollection.Remove(cs);
// Save the configuration file.
config.Save(ConfigurationSaveMode.Modified);
Console.WriteLine(
"Connection string settings removed.");
}
else
Console.WriteLine(
"Connection string settings does not exist.");
}
catch (ConfigurationErrorsException err)
{
Console.WriteLine(err.ToString());
}
}
Shared Sub RemoveConnectionStrings()
Try
' Get the application configuration file.
Dim config _
As System.Configuration.Configuration = _
ConfigurationManager.OpenExeConfiguration( _
ConfigurationUserLevel.None)
' Clear the connection strings collection.
Dim csSection _
As ConnectionStringsSection = _
config.ConnectionStrings
Dim csCollection _
As ConnectionStringSettingsCollection = _
csSection.ConnectionStrings
' Get the connection string setting element
' with the specified name.
Dim cs As ConnectionStringSettings = _
csCollection("ConnStr0")
' Remove it.
If Not (cs Is Nothing) Then
' Remove the element.
csCollection.Remove(cs)
' Save the configuration file.
config.Save(ConfigurationSaveMode.Modified)
Console.WriteLine( _
"Connection string settings removed.")
Else
Console.WriteLine( _
"Connection string settings does not exist.")
End If
Catch err As ConfigurationErrorsException
Console.WriteLine(err.ToString())
End Try
End Sub
另请参阅
适用于
Remove(String)
从集合中移除指定的 ConnectionStringSettings 对象。
public:
void Remove(System::String ^ name);public void Remove (string name);member this.Remove : string -> unitPublic Sub Remove (name As String)参数
- name
- String
集合中 ConnectionStringSettings 对象的名称。
示例
以下示例演示如何从集合中删除 ConnectionStringSettings 具有指定名称的对象。
static void RemoveConnectionStrings2()
{
try
{
System.Configuration.Configuration config =
ConfigurationManager.OpenExeConfiguration(
ConfigurationUserLevel.None);
// Clear the connection strings collection.
ConnectionStringsSection csSection =
config.ConnectionStrings;
ConnectionStringSettingsCollection csCollection =
csSection.ConnectionStrings;
// Remove the element.
csCollection.Remove("ConnStr0");
// Save the configuration file.
config.Save(ConfigurationSaveMode.Modified);
Console.WriteLine(
"Connection string settings removed.");
}
catch (ConfigurationErrorsException err)
{
Console.WriteLine(err.ToString());
}
}
Shared Sub RemoveConnectionStrings2()
Try
' Get the application configuration file.
Dim config _
As System.Configuration.Configuration = _
ConfigurationManager.OpenExeConfiguration( _
ConfigurationUserLevel.None)
' Clear the connection strings collection.
Dim csSection _
As ConnectionStringsSection = _
config.ConnectionStrings
Dim csCollection _
As ConnectionStringSettingsCollection = _
csSection.ConnectionStrings
' Remove the element.
csCollection.Remove("ConnStr0")
' Save the configuration file.
config.Save(ConfigurationSaveMode.Modified)
Console.WriteLine( _
"Connection string settings removed.")
Catch err As ConfigurationErrorsException
Console.WriteLine(err.ToString())
End Try
End Sub
