protected void AddSeriesButton_Click(object sender, EventArgs e)
{
NewSeriesTextBox.Visible = true;
if (NewSeriesTextBox.Text.Trim() != "")
{
Serie s1 = new Serie(0, NewSeriesTextBox.Text.Trim());
Series.AddSerie(s1);
NewSeriesTextBox.Text = "";
NewSeriesTextBox.Visible = false;
SeriesDropDownList.DataSource = Series.GetAllSeries();
SeriesDropDownList.DataTextField = "Series";
SeriesDropDownList.DataValueField = "SeriesID";
SeriesDropDownList.DataBind();
}
}