La base de datos VB.NET elimina datos y los modifica

¿Dim?myconn?As?New?OleDb.OleDbConnection

Dim?mycommand?As?New?OleDb.OleDbCommand

myconn.ConnectionString?=?" Proveedor=Microsoft.ace.OLEDB.12.0;Data?Source=C:\Users\Administrator\Documents\account contraseña.accdb?"

myconn.Open()

micomando. Connection?Connection=myconn

Dim?sql5?As?String?=? "delete?from?table3?where?userid='"?amp;?(TextBox1.Text)?amp;?"' "

mycommand.CommandText?=?sql5

mycommand.CommandType?=?CommandType.Text

mycommand.ExecuteNonQuery()

¿Dim?(TextBox1.Text)?&?"'"

mycommand.CommandText?=?sql3

mycommand.CommandType?=?CommandType.Text

mycommand.ExecuteNonQuery()

myconn.Close()