/// <summary>
/// Invoked when the ComboBox has to render the drop-down items.
/// </summary>
/// <param name="sender"></param>
/// <param name="e"></param>
void CheckComboBox_DrawItem(object sender, DrawItemEventArgs e)
{
// make sure the index is valid (sanity check)
if (e.Index == -1)
{
return;
}
// test the item to see if its a CheckComboBoxItem
if (!(Items[e.Index] is CheckComboBoxItem))
{
// it's not, so just render it as a default string
e.Graphics.DrawString(
Items[e.Index].ToString(),
this.Font,
Brushes.Black,
new Point(e.Bounds.X, e.Bounds.Y));
return;
}
// get the CheckComboBoxItem from the collection
CheckComboBoxItem box = (CheckComboBoxItem)Items[e.Index];
// render it
CheckBoxRenderer.RenderMatchingApplicationState = true;
CheckBoxRenderer.DrawCheckBox(
e.Graphics,
new Point(e.Bounds.X, e.Bounds.Y),
e.Bounds,
box.Text,
this.Font,
(e.State & DrawItemState.Focus) == 0,
box.CheckState ? CheckBoxState.CheckedNormal : CheckBoxState.UncheckedNormal);
}
private async void AuthorsComboBox_CheckStateChanged(object sender, EventArgs e)
{
if (sender is CheckComboBoxItem)
{
CheckComboBoxItem item = (CheckComboBoxItem)sender;
if (item.CheckState)
{
FilterAndSearchConfig.AddFilterUnsavedAuthor(item.Text);
}
else
{
FilterAndSearchConfig.DeleteFilterUnsavedAuthor(item.Text);
}
string result = await Task.Factory.StartNew <string>(() => Timer(), TaskCreationOptions.LongRunning);
ChangeAuthorsComboBox();
}
}
/// <summary>
/// Invoked when the selected index is changed on the dropdown. This sets the check state
/// of the CheckComboBoxItem and fires the public event CheckStateChanged using the
/// CheckComboBoxItem as the event sender.
/// </summary>
/// <param name="sender"></param>
/// <param name="e"></param>
void CheckComboBox_SelectedIndexChanged(object sender, EventArgs e)
{
TimeSpan span = DateTime.Now - LastChange;
if (span < new TimeSpan(0, 0, 1))
{
return;
}
else
{
LastChange = DateTime.Now;
CheckComboBoxItem item = (CheckComboBoxItem)SelectedItem;
item.CheckState = !item.CheckState;
if (CheckStateChanged != null)
{
CheckStateChanged(item, e);
}
}
}
private async void GenresComboBox_CheckStateChanged(object sender, EventArgs e)
{
if (sender is CheckComboBoxItem)
{
CheckComboBoxItem item = (CheckComboBoxItem)sender;
if (item.CheckState == true)
{
FilterAndSearchConfig.AddUnsavedFilterGenre(item.Text);
}
else if (item.CheckState == false)
{
FilterAndSearchConfig.DeleteUnsavedFilterGenre(item.Text);
}
string UNS = FilterAndSearchConfig.UnsavedFilterGenre;
string result = await Task.Factory.StartNew <string>(
() => Timer());
ChangeGenreComboBox();
}
}