ms access - c# KeyValuePair and database -

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i doing c# application project whereby receptionist able book rooms customers. had created database whereby looks this

id  roomtype     1   nap              2   nap              3   nap              4   nap              5   nap              6   meeting_small    7   meeting_small    8   meeting_small    9   meeting_small    10  meeting_small    11  meeting_big      12  meeting_big      13  meeting_big      14  meeting_big      15  meeting_big

also, use keyvaluepair link access database through button. receptionist have click on button select room. when button selected, database show that particular room taken.

i tried code coding under button. 

keyvaluepair<string, string> selectedroom; selectedroom = new keyvaluepair<string,string>("nap", "1");

however, not sure if possible. can me out? thank you

i had removed room number out


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