public boolean containsValidDataType() {
		try {
			return isValidDataType();
		}
		catch (InvalidDataTypeException e) {
			return false;
		}
	}
Returns true if the current value of the data type editor is a know data type.
@return true if the current value of the data type editor is a know data type.
@throws InvalidDataTypeException If the current text in the editor's text field could not
        be parsed into a valid DataType
Ghidra/Features/Base/src/main/java/ghidra/app/util/datatype/DataTypeSelectionEditor.java