private void InvalidateRowFilter()
{
if (_applyRowFilterTask != null)
{
_applyRowFilterTask.Dispose();
_applyRowFilterTask = null;
}
var bindingListView = GetBindingListView();
if (bindingListView == null)
{
return;
}
if (_filterText != tbxFind.Text)
{
var unfilteredRows = bindingListView.UnfilteredItems.ToArray();
if (string.IsNullOrEmpty(tbxFind.Text))
{
bindingListView.SetFilteredItems(unfilteredRows);
_filterText = "";
}
else
{
_applyRowFilterTask = new ApplyRowFilterTask(unfilteredRows,
bindingListView.GetItemProperties(new PropertyDescriptor[0]).Cast <PropertyDescriptor>().ToArray(),
tbxFind.Text);
new Action(_applyRowFilterTask.FilterBackground).BeginInvoke(ApplyRowFilterTaskCallback, _applyRowFilterTask);
}
}
}
private void SetFilteredRowsNow(ApplyRowFilterTask applyRowFilterTask, IList <RowItem> rows)
{
try
{
}
finally
{
applyRowFilterTask.Dispose();
}
}
private void ApplyRowFilterTaskCallback(IAsyncResult result)
{
if (!result.IsCompleted)
{
return;
}
if (!ReferenceEquals(_applyRowFilterTask, result.AsyncState))
{
return;
}
if (InvokeRequired)
{
BeginInvoke(new Action <IAsyncResult>(ApplyRowFilterTaskCallback), result);
return;
}
if (!ReferenceEquals(_applyRowFilterTask, result.AsyncState))
{
return;
}
try
{
var bindingListView = GetBindingListView();
if (bindingListView == null)
{
return;
}
bindingListView.SetFilteredItems(_applyRowFilterTask.FilteredRows.ToArray());
_filterText = _applyRowFilterTask.FilterText;
}
finally
{
_applyRowFilterTask.Dispose();
_applyRowFilterTask = null;
}
RefreshUi();
}