Read-Write
Source As String
Sets or returns the source for a data query.
Strings of the following form can be returned.
The strings represent the attribute tag of a block, column name of an object data table, an object data field name, or an extended entity data field name.
Use this property for data conditions only. If you attempt to set the source for a query that is not of type kDataQueryType, the API does not set the property, and returns the string previously set for a data query or an empty string if none is set. Wild card characters are supported for Blockname.AttributeTag. For information about wild card characters, look up "wild-card characters" on the Index tab of AutoCAD Map UI Help.
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