/// <summary>
/// Respond to the click event of the button for adding an existing
/// author by adding the selected author to the list of authors
/// for the module being created.
/// </summary>
/// <param name="sender">The sender of the event.</param>
/// <param name="e">The event arguments.</param>
public void AddExistAuthBtn_Click(object sender, EventArgs e)
{
if (!AuthorsEditor.Editing)
{
Authors.AuthorInfo ai = Authors.getAuthorInfo(existAuthLst.SelectedValue);
AuthorsEditor.DataList.Add(ai);
AuthorsEditor.DataBind();
}
else
{
AuthorsEditor.Text = "Click <strong>Apply</strong> or <strong>Cancel</strong> before attempting to add an entry.";
}
}
/// <summary>
/// Respond to the update event, when an item is being edited and
/// subsequently updated, by updating the info object of the
/// item being edited.
/// </summary>
/// <param name="sender">The sender of the event.</param>
/// <param name="e">The event arguments</param>
private void AuthorsEditor_UpdateCommand(object source, DataGridCommandEventArgs e)
{
DropDownList ddl = (DropDownList)e.Item.Cells[1].FindControl("existAuthLst");
Authors.AuthorInfo ai = Authors.getAuthorInfo(ddl.SelectedValue);
AuthorsEditor.DataList[(int)e.Item.ItemIndex] = ai;
AuthorsEditor.DataBind();
if (hasDuplicates())
{
AuthorsEditor.Text = "That author has already been added.";
AuthorsEditor.DataList.RemoveAt((int)e.Item.ItemIndex);
}
else
{
AuthorsEditor.Text = "";
}
}
/// <summary>
/// Initialize the list of authors.
/// </summary>
/// <param name="moduleID">The module identifier for the
/// initial list of authors or 0 if it should be initially empty.</param>
public void initList(int moduleID)
{
if (moduleID == 0)
{
AuthorsEditor.DataList = new ArrayList();
string username = Context.User.Identity.Name;
Authors.AuthorInfo ai = Authors.getAuthorInfo(username);
AuthorsEditor.DataList.Add(ai);
AuthorsEditor.DataBind();
}
else if (moduleID > 0)
{
AuthorsEditor.DataList = Authors.getAll(moduleID);
AuthorsEditor.DataBind();
}
else
{
throw new ArgumentException("Invalid module identifier.", "moduleID");
}
}
/// <summary>
/// Respond to the new item event, when the user elects to create a
/// new item, by creating the specific info class and adding it to
/// the editor control's data list.
/// </summary>
/// <param name="sender">The sender of the event.</param>
/// <param name="e">The event arguments</param>
private void AuthorsEditor_NewItemEvent(object sender, EventArgs e)
{
Authors.AuthorInfo ai = new Authors.AuthorInfo("", "", "");
AuthorsEditor.DataList.Add(ai);
}
