To delete information from a table, use DELETE statements.

DELETE Syntax

The DELETE statement requires the table name in the FROM clause and the row's primary key in the WHERE clause, as shown in the following example:

<delete_statement> ::= DELETE FROM <table_name> WHERE { Id = <expression> } [ { AND | OR } ... ]

<expression> ::=
  | @ <parameter> 
  | ?
  | <literal>

You can use the ExecuteNonQuery method to execute data manipulation commands and retrieve the number of affected rows, as shown in the following example:

C#

String connectionString = "Port=993;Server=outlook.office365.com;Password=password;User=user;Protocol=IMAP;SMTP Port=587;SMTP Server=smtp.office365.com;";
using (EmailConnection connection = new EmailConnection(connectionString)) {
  int rowsAffected;
  EmailCommand cmd = new EmailCommand("DELETE FROM [INBOX] WHERE Id = @myId", connection);
  cmd.Parameters.Add(new EmailParameter("myId","1"));
  rowsAffected = cmd.ExecuteNonQuery();
}

VB.NET

  
Dim connectionString As [String] = "Port=993;Server=outlook.office365.com;Password=password;User=user;Protocol=IMAP;SMTP Port=587;SMTP Server=smtp.office365.com;"
Using connection As New EmailConnection(connectionString)
  Dim rowsAffected As Integer
  Dim cmd As New EmailCommand("DELETE FROM [INBOX] WHERE Id = @myId", connection)
  cmd.Parameters.Add(New EmailParameter("myId", "1"))
  rowsAffected = cmd.ExecuteNonQuery()
End Using