the book is just starting to get into the code here. the author claims there is not previous knowledge needed, but at this page he is throwing code at us and not telling us where it put it. the book has been complete and well written up to this point, but the example must be clear or it's useless.....

so, on page 358, where should this txtBoxEmpty_Validating... event go? in main? in the form1?

jtwl_

jtwl_,

Now I don't have the book you're working with but I down loaded the code to have a look at it and it appears that the event should go in its own method like this.

private void txtBoxEmpty_Validating(object sender,
                                            System.ComponentModel.CancelEventArgs e)
        {
            TextBox tb;

            tb = (TextBox)sender;

            // If the text is empty we set the background color of the
            // TextBox to red to indicate a problem. We use the tag value
            // of the control to indicate if the control contains valid
            // information.
            if (tb.Text.Length == 0)
            {
                tb.BackColor = Color.Red;
                tb.Tag = false;
            }
            else
            {
                tb.BackColor = System.Drawing.SystemColors.Window;
                tb.Tag = true;
            }

            // Finally we call ValidateAll which will set the value of
            // the OK button.
            ValidateAll();
        }

I hope this helps.

Jason

"Is the glass half full, half empty, or twice as large as it needs to be?"