Column Filter - Selected Items

[Victor]

Hi,

We have a problem with the grid filters. Can`t find the property or method to see what items are selected in filter.
Is it posssible to get list of items that is checked?

Please supply solution to this issue.

[Victor]

Someone here? The the problem still actual. Really waiting for your response. 

[Dimitrina]

Hello,

You could access the GridViewDataColumn.ColumnFilterDescriptor in code and then check the values assigned to its DistincFilter.

Please check our online documentation for more information on the matter.

Regards,
Didie
Telerik

[Victor]

Hi, thanks for reply. But I find only how to add unique(disctinct) value or get the list of them. But i need to get list of value which is marked in checkboxes (look at img in 1st post). So the problem is still actual :(

Waitng for ur answer

[Hristo]

Hello,

Basically, you have to create a list of DistinctValues during the Filtered event.

You can use the following code snippet as an example:

private void RadGridView_Filtered(object sender, Telerik.Windows.Controls.GridView.GridViewFilteredEventArgs e)
        {
            var filterCheckedItems = e.ColumnFilterDescriptor.DistinctFilter.DistinctValues.ToList();
        }

Regards,
Hristo
Telerik

[Victor]

Thanks a lot, it works!

[Victor]

Hi, i have one more troble. Filtered event used only when filter button pressed, or if property IsFilteringDeferred set false in every click on some values. 

So here is a problem. I need to get the list of selected values in filter, but i don`t whant to refresh grid or press the button. Is it possible or not? Maybe every time I checked/unchecked value, some tmp list will be edited. 

[Dimitrina]

Hi,

The Filtered event is an UI event. It will only be raised on a user interaction.

The list of the distinct values is displayed in a ListBox. You could subscribe for its SelectionChanged event and keep track of the items being selected.

I hope this helps.

Regards,
Didie
Telerik

[Victor]

Hi,

I think it could help, but if it possible, can u make an example of subscribing to this event, or how a can access to this ListBox from code

 

[Dimitrina]

Hi,

I am afraid this cannot be done from code, as the FilteringControl is displayed in a popup. You could try modifying the template of the FilteringControl and having the instance of the ListBox implement your additional logic.

Regards,
Didie
Telerik