GET_EXPR_TEXT

The command GET_EXPR_TEXT returns the default value of a class attribute or the value of an instance attribute, both of type EXPRESSION.

Syntax

For a class attribute

CC "Core" GET_EXPR_TEXT classid:intValue attrid:intValue

#-->RESULT ecode:intValue expr:strValue

For an instance attribute

CC "Core" GET_EXPR_TEXT objid:idValue attrid:intValue

#-->RESULT ecode:intValue expr:strValue

Parameters

• classid (intValue) - the id of the class
• objid (idValue) - the id of the object
• attrid (intValue) - the id of the attribute or class attribute

Returns

• ecode (intValue) - Contains the error code or is 0 in case of success.
• expr (strValue) - contains the string value of the specified attribute.

Details

See Also

SET_EXPR_TEXT

Examples

# get all selected objects
CC "Modeling" GET_SELECTED
IF (objids = "")
{
   CC "AdoScript" ERRORBOX "Select an instance first!"
   EXIT
}

# from the list of selected objects, extract the first objectid
SET firstselected:(token(objids,0," "))

# now get the classes of the connected instances
CC "Core" GET_CLASS_ID objid:(VAL firstselected)

# get all attributes of the selected class
CC "Core" GET_ALL_ATTRS classid:(classid)

# get types of attributes
FOR id in:(attrids)
{
  CC "Core" GET_ATTR_TYPE attrid:(VAL id)
  IF ((attrtype)="EXPRESSION")
  {
# get attribute value
    CC "Core" GET_EXPR_TEXT objid:(VAL firstselected) attrid:(VAL id)
    IF ((ecode)!=0)
    {
      CC "Core" GET_CLASS_NAME classid:(classid)
      CC "AdoScript" ERRORBOX ("Error in GET_EXPR_TEXT for object "+(classname)+"\"")
      EXIT
    }
# show value
    CC "AdoScript" INFOBOX ("ExprValue: \""+(expr)+"\"")

# get class default value
    CC "Core" GET_EXPR_TEXT classid:(classid) attrid:(VAL id)
    IF ((ecode)!=0)
    {
      CC "AdoScript" ERRORBOX ("Error in GET_EXPR_TEXT for class \""+(classname)+"\"")
      EXIT
    }

# show default value
    CC "AdoScript" INFOBOX ("Default Value: \""+(expr)+"\"")
    EXIT
  }
}

CC "AdoScript" ERRORBOX ("No attributes of type EXPRESSION found!")

Preparing:

• get selected objects
• pick first one
• get class id
• get all attributes
• loop for all attributes
• check for type EXPRESSION

Interesting:

• GET_EXPR_TEXT for instance attribute (objid)
• show value
• GET_EXPR_TEXT for class default value (classid)
• show value

Versions and Changes

Available since ADOxx 1.3