Question

I’m having trouble figuring out how to use LAST_INSERT_ID() for a MySQL database in WebMatrix. Can someone show me how to apply it to the code snippet below?

var clothingsize="";
if(IsPost){     
clothingsize =Request["clothingsize"];         

var SQLINSERT = "INSERT INTO fit1 (clothingsize) VALUES (@0)"; }

Answer 1

Here’s the solution that works:

Right after this code on the signup page

db.Execute(SQLINSERT, fname, lname);

Add these 2 lines of code:

var customer_info_user_id = db.GetLastInsertId(); 
Response.Redirect("~/fit.cshtml?customer_info_user_id=" + customer_info_user_id);

Then insert the following into the subsequent pages:

Before the var to open the database

var customer_info_user_id = Request["customer_info_user_id"];

Add the id number that’s been carried over into the INSERT functions. For example:

var SQLINSERT = "INSERT INTO fit (customer_info_user_id, clothingsize) VALUES (@0,@1)";                  
db.Execute(SQLINSERT, customer_info_user_id, clothingsize);

Carry over the id number to the next page

Response.Redirect("~/flatter.cshtml?customer_info_user_id=" + customer_info_user_id);

Thanks to @Mike Brind and the ASP.net forum for helping me figure this out 🙂