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**#ALIAS(** //newsymbol// , //oldsymbol// [, //instance// ] )

**#TRYALIAS(** //newsymbol// , //oldsymbol// [, //instance// ] )

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| **#ALIAS / #TRYALIAS** | Declares a synonym for a user-defined symbol. |
| //newsymbol// | Specifies the new synonym for the //oldsymbol//. |
| //oldsymbol// | The name of the symbol for which to declare a synonym. This must meet all the requirements of a user-defined symbol. This must not be a #PROMPT symbol or a variable in the same scope. |
| //instance// | An expression containing the instance of the addition containing the //oldsymbol//. |

The **#ALIAS** statement declares a synonym for the user-defined //oldsymbol// declared in a #CODE, #CONTROL, or #EXTENSION template prompt for use in another.

The **#TRYALIAS **statement is similar to **#ALIAS **except that the symbol is only defined by the template referred to by //oldsymbol//. If //oldsymbol //is not defined, no template error is posted.

**Example:**

**#EXTENSION(GlobalSecurity,'Global Password Check'),APPLICATION**

**  #DECLARE(%PasswordFile)**

**  #DECLARE(%PasswordFileKey)**

**#EXTENSION(LocalSecurity,'Local Procedure Password Check'),PROCEDURE**

** ****#ALIAS****(%PswdFile,%PasswordFile,%ControlInstance)**

** ****#ALIAS****(%PswdFileKey,%PasswordFileKey,%ControlInstance)**

**#GROUP (%QueryHasLocator, %WhichInstance),AUTO**

**#TRYALIAS**** (%CurLocatorType, %LocatorType, %WhichInstance)**

**#IF (VAREXISTS(%CurLocatorType))**

**  #RETURN (%CurLocatorType)**

**#END**

**#RETURN ''**

**See Also:     **[[ code  define a code template .htm|#CODE]] ,[[ control  define a control template .htm|#CONTROL]] ,[[ extension  define an extension template .htm|#EXTENSION]]