AppDomain::GetData Method (String^)
Gets the value stored in the current application domain for the specified name.
Assembly: mscorlib (in mscorlib.dll)
Parameters
- name
-
Type:
System::String^
The name of a predefined application domain property, or the name of an application domain property you have defined.
Return Value
Type: System::Object^The value of the name property, or null if the property does not exist.
Implements
_AppDomain::GetData(String^)| Exception | Condition |
|---|---|
| ArgumentNullException | name is null. |
| AppDomainUnloadedException | The operation is attempted on an unloaded application domain. |
Use this method to retrieve the value of an entry in an internal cache of name-data pairs that describe properties of this instance of AppDomain. Note that the comparison of name with the name of key-value pairs is case-sensitive.
The cache automatically contains predefined system entries that are inserted when the application domain is created. You can inspect their values with the GetData method, or the equivalent AppDomainSetup properties.
You can insert or modify your own user defined name-data pairs with the SetData method and inspect their values with the GetData method.
The following table describes the name of each predefined system entry and its corresponding AppDomainSetup property.
Value of 'name' | Property |
|---|---|
"APPBASE" | |
"APP_CONFIG_FILE" | |
"APP_LAUNCH_URL" | (no property) "APP_LAUNCH_URL" represents the URL originally requested by the user, before any redirection. It is available only when the application has been launched with a browser such as Internet Explorer. Not all browsers provide this value. |
"APP_NAME" | |
"BINPATH_PROBE_ONLY" | |
"CACHE_BASE" | |
"CODE_DOWNLOAD_DISABLED" | |
"DEV_PATH" | (no property) |
"DISALLOW_APP" | |
"DISALLOW_APP_BASE_PROBING" | |
"DISALLOW_APP_REDIRECTS" | |
"DYNAMIC_BASE" | |
"FORCE_CACHE_INSTALL" | |
"LICENSE_FILE", or an application-specific string | |
"LOADER_OPTIMIZATION" | |
"LOCATION_URI" | (no property) |
"PRIVATE_BINPATH" | |
"REGEX_DEFAULT_MATCH_TIMEOUT" | "REGEX_DEFAULT_MATCH_TIMEOUT" is not a system entry, and its value can be set by calling the SetData method. |
"SHADOW_COPY_DIRS" |
The following example creates a new application domain, sets a system-provided value for the domain, and adds a new value pair for the domain. The example then demonstrates how to use the GetData method to retrieve the data from these value pairs and display them to the console.
using namespace System; using namespace System::Reflection; int main() { // appdomain setup information AppDomain^ currentDomain = AppDomain::CurrentDomain; //Create a new value pair for the appdomain currentDomain->SetData( "ADVALUE", "Example value" ); //get the value specified in the setdata method Console::WriteLine( "ADVALUE is: {0}", currentDomain->GetData( "ADVALUE" ) ); //get a system value specified at appdomainsetup Console::WriteLine( "System value for loader optimization: {0}", currentDomain->GetData( "LOADER_OPTIMIZATION" ) ); } /* This code example produces the following output: ADVALUE is: Example value System value for loader optimization: NotSpecified */
for access to the information in the path itself, if the property applies to a path. Associated enumeration: FileIOPermissionAccess::PathDiscovery.
Available since 1.1
Silverlight
Available since 2.0