How Can I Populate An SQL Database Graphically?

I am writing a small program (Visual Studio Express 2008) to help me automate populating a database graphically. The program I am writing will keep track of sales figures state by state on a map of the US. This will be accomplished by using a map of the United States overlaid with a hexagonal grid that represents individual sales regions (hexagons). Each hexagon represents a specific sales region, and there can be many sales regions within a state. This small program will populate the database with data specific to each hexagon that is selected by clicking on it with a mouse. A complete set of row entries should be sent to the database every time the mouse is clicked in a hexagon on my map. This program will capture such information as the center x,y pixel coordinates of each hexagon, row & column location of each hexagon, and the state where the hexagon is located. All of this information (HexX, HexY, RowX, RowY, State) has already been figured out or calculated, except that I need help on how to capture, display, and send this information as a new row entry into my database. I need to populate the database hexagon by hexagon, since which state they are in is determined visually.
Here is what I need to populate my database with:


Hex_No - each unique hexagon needs to have its own unique number 1,2,3,€¦.n. This should be as easy as assigning a counter that starts at 1 and increments until all hexagons have been processed

Hex_X €“ the pixel x value of the center (x,y) of the specific hexagon, which is known by the program

Hex_Y €“ pixel y value of the center (x,y) of the specific hexagon, which is known by the program

Hex_Col €“ column location of this specific hexagon, which is known by the program

Hex_Row€“ row location of this specific hexagon, which is known by the program

State €“ the current state on the map. This will be selected by me (combobox) prior to clicking on each hexagon within a given state
Each of the above is represented by a textbox on a form, except for the State field, which is represented by a combobox. When one clicks on the down arrow of the combobox, one can see that the names of the different states have already been entered and linked to the SQL database. The other textboxes are also linked to a different column in the same database; however they are currently empty due to the fact that this is the very data that needs to be captured by this program. This is what I need for this program to do for every mouse click , once I have moved on to a given hexagon within a given state:


Determine next available Hexagon Number, and assign it to current hexagon, display in textbox, send this as part of row data entry under Hexagon_No column

Capture and display the current hexagon€™s center x, and y (Hex_X, Hex_Y), display this in textbox, send this as part of row data entry under Hex_X, and Hex_Y columns

Capture and display the current hexagon€™s row and column information (Hex_Col, Hex_Row), display this in textbox, send this as part of row data entry under Hex_Col, and Hex_Row columns

Capture and display the current State that is selected manually from the list of database values, send this as part of row data entry under State column
Here is an example of what this program might look like in action:
http://farm4.static.flickr.com/3172/2285817199_d75f230f8d_o.jpg
I am not looking for anyone to write my program, but I would appreciate some ideas on how I can accomplish this. I have figured everything out except the part about displaying the new information on the textbox/combobox form, and sending it to the database as the next row entry. That€™s the part I need help with.
Thanks.