Problem updating database after deleting someting!

I am working on basic sql using C # with bindings and adapters. I have successfully added the data to my database and can then update with no problem. But when I try to delete some data and then UPDATE it throws an exception:

An unhandled exception of type 'System.InvalidOperationException' occurred in System.Data.dll Additional information: The update requires a valid DeleteCommand when passing a DataRow collection with rows deleted.

The code:

private void button4_Click(object sender, EventArgs e)
{
    table1TableAdapter.Update(dataSet1);
}

private void button5_Click(object sender, EventArgs e)
{
    table1BindingSource.RemoveCurrent();
}

      

        
        
        
      

    

Why can't I update my database after deleting something from it?