How to Retrieve the Last Inserted Row ID in C#?

Retrieving Inserted Row ID in C#

Obtaining the ID of a row inserted using an AUTO_INCREMENT field is essential for subsequent processing. However, in certain scenarios, executing an insert query may not yield the expected ID value.

To resolve this issue, consider the following approach:

1. Modify the Insert Statement:
   Instead of specifying the column values directly in the query, you can use parameter placeholders and set the parameter values separately. This ensures a proper assignment of values:

   MySqlCommand comm = connect.CreateCommand();
   comm.CommandText = insertStatement;
   comm.Parameters.AddWithValue("@invoiceDate", invoiceDate);
   comm.Parameters.AddWithValue("@bookFee", bookFee);
   comm.Parameters.AddWithValue("@adminFee", adminFee);
   comm.Parameters.AddWithValue("@totalFee", totalFee);
   comm.Parameters.AddWithValue("@customerId", customerId);

2. Execute the Insert Query:
   Execute the insert command using ExecuteNonQuery(). This method returns the number of rows affected by the query:

   int rowsAffected = comm.ExecuteNonQuery();

3. Retrieve the Last Inserted ID:
   After successfully executing the insert query, you can retrieve the ID of the inserted row using LastInsertedId:

   long id = comm.LastInsertedId;

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