If you file in Dallas County court, you won't need to find a driver's record. If you file in another court, you must purchase a record. The Court is required to review by TC 521.244) The AR report is the best for this purpose. Texas.gov record only does not include suspension history. You really shouldn't do this alone. Find someone to help you
When your lawyer drafts the petition and orders for your case, it will give the court the information to get your record for the hearing. In other words, you are not required to get your own DL record in Dallas.
This answer is general information only and is not legal advice, does not form an attorney-client relationship, and should NOT be relied upon to take or refrain from taking any action.
First of all, there is no such thing as the "CITY of Dallas County."
In the Dallas County criminal courts, no driving record is needed for an ODL. This is where misdemeanor DWI cases are filed. ODLs for a felony DWI are filed in the Dallas County District courts. They do require a driving record.
ODLs are confusing even to lawyers. You could try to do one yourself, but you should probably hire a lawyer.
Best of luck to you!
This answer is for general purposes only, and is no subsitute for specific legal advice that would come from an attorney hired by you, having full knowledge regarding the facts and circumstances of your individual situation. This correspondence does not create an attorney-client relationship, and you should consult with one or more attorneys prior to acting on any of the information provided in this response.