Hi Justin,

thank you for your feedback. Maybe I found a workaround – maybe you could discuss if I missed something or not?

What I did was:
- I deactivated the filter feature on the C1FlexGrid
- In my code I get the C1FlexGrid control and create a C1FlexGridFilter instance:

partial void Screen_Created()
{
// Get the main grid
IContentItemProxy proxy = this.FindControl("grid");
proxy.ControlAvailable += ProxyControlAvailable;
}

private C1.Silverlight.FlexGrid.C1FlexGrid _grid = null;
private C1.Silverlight.FlexGrid.C1FlexGridFilter _filter = null;
void ProxyControlAvailable(object sender, ControlAvailableEventArgs e)
{
_grid = e.Control as C1.Silverlight.FlexGrid.C1FlexGrid;
_filter = new C1FlexGridFilter(_grid);
}

In my tests I was able to get the behaviour I wanted: Everything was saved (e.g. positions, sortings, …) except the Filters that people set. (That is important in our application to make sure that nobody misses important data because of a filter that is still active from a use in the past.)

Thank you in advance for your reply.

With kind regards,

Konrad

Hi,

I have to confess that I am still using 1.0.20122.25.

_filter is null when I deactivate filtering inside the designer. I had this problem once because my first workaround was to disable filtering in the designer and add a filter in code. So when I had to apply this workaround to a new screen I had such an error, too.

I will check now, if I can grab this update and check if it is still working for me. And if you want we could double check why the workaround is not working for you. Feel free to send me an email: konrad at neitzel dot de. (Maybe my description is missing some important thing – Justin was unable to follow my description, too. I cannot promise anything but I am willing to give it a try.)

With kind regards,

Konrad

Hi all,

I got the NullReferenceException on the _filter now, too. Not sure why my first test was successfull. Either it was still using the old version for some reason or it is a racing condition.

Without deeper testing, I changed the code to this code:
void ProxyControlAvailable(object sender, ControlAvailableEventArgs e)
{
if (_grid == null)
{
_grid = e.Control as C1FlexGrid;
_grid.EnableFiltering(true);
_filter = C1FlexGridFilterService.GetFlexGridFilter(_grid);
_filter.Clear();
_filter.Apply();
}
}

It seems to work now – but I didn’t test it much. Maybe I was just lucky again in case it was a racing condition. Maybe you can test this _grid.EnableFiltering(true); call, too.

If my tests in the next week are still successfull then I update the word document I uploaded in my other reply.

With kind regards,

Konrad