How to Retrieve the Last Insert ID with MySql Connector .NET?

Getting Last Insert ID with MySql Connector .NET

Question:

When using MySql Connector .NET to execute an insert query, why does MySqlHelper.ExecuteNonQuery consistently return 1 instead of the actual last insert ID?

Answer:

The MySqlHelper.ExecuteNonQuery method doesn't return the last insert ID. Instead, to obtain the last insert ID after executing an insert statement, you should utilize the LastInsertedId field on the executed command object.

Code Example:

<code class="csharp">// Create and execute an insert command
MySqlCommand dbcmd = _conn.CreateCommand();
dbcmd.CommandText = sqlCommandString;
dbcmd.ExecuteNonQuery();

// Retrieve the last insert ID from the command object
long imageId = dbcmd.LastInsertedId;</code>

Using this approach, imageId will contain the last insert ID generated by the insert statement.

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