private void filterToolStripTextBox_TextChanged(object sender, EventArgs e)
{
try
{
Cursor.Current = Cursors.WaitCursor;
string filter = filterToolStripTextBox.Text.ToLower();
checkedListBox.BeginUpdate();
List<object> checkedItems = CheckedItems;
List<object> filteredItems = new List<object>();
for (int i = 0; i < _source.Count; i++)
{
object item = _source[i];
if (checkedItems.Contains(item) || GetPropertyValue(item, _displayMember).ToLower().Contains(filter)) filteredItems.Add(item);
}
checkedListBox.DataSource = filteredItems;
checkedListBox.DisplayMember = _displayMember;
for (int i = 0; i < checkedListBox.Items.Count; i++)
{
checkedListBox.SetItemChecked(i, checkedItems.Contains(checkedListBox.Items[i]));
}
}
finally
{
checkedListBox.EndUpdate();
Cursor.Current = Cursors.Default;
}
enableControls();
}