Use Default Filtering Control with disabled Filter

[Moritz]

Hi,

 

I have a huge amount of data, which I don't want to load all into the gridview.

I want to have the following scenario: The user applies filter with the default filtering control. The ViewModel get the FilterDescriptor and request the filtered Data at the DataService. The GridView shows the received data.

I don't want to use the filter for filtering the data bound to the gridview, I want to use it to request filtered data.

 

Moritz

[Dilyan Traykov]

Hello Moritz,

What I can suggest in order to achieve the desired result is to handle the Filtered event of the control and get ahold of the applied filter via the Added argument of the event.

You can then clear the filter by removing the corresponding MemberColumnFilterDescriptor from the control's FilterDescriptors collection. Here's what I have in mind:

private void RadGridView_Filtered(object sender, Telerik.Windows.Controls.GridView.GridViewFilteredEventArgs e)
{
    if (e.Added.Any())
    {
        var filter = e.Added.First() as FilterDescriptor;
        // use the FilterDescriptor to send the DataService request

        radGridView.FilterDescriptors.Remove(radGridView.FilterDescriptors.First(x => (x as MemberColumnFilterDescriptor)?.Member == filter.Member));
    }
}

Please let me know whether such an approach would work for you.

Regards,
Dilyan Traykov
Progress Telerik

[Moritz]

Thanks, that worked out for me.