[Solved] set selectitem before dataloaded event

[Jonam]

Hello,

my problem is the following. I set a radGridView.ItemsSource with an List<object>. But i can't set the selectedItem untill the dataloaded event is fired. Is there a way to manual fire the dataloaded event.

The reason why want to do this is because i have chained 6 grids together with a filter event. The selected row on grid 1 is the filter for grid2. The selected row on grid 2 is the filter for grid 3 etc.

this is the function that supplies the filtering. This works fine but just not untill the second grid has opened once. Help!

public void SetFilterParentId(int id, string filterDescription)
{
    CurrentFilter = filterDescription;
    radGridView1.FilterDescriptors.Clear();
    radGridView1.FilterDescriptors.Add(
        new FilterDescriptor()
        {
            IsCaseSensitive = false,
            Member = "AccountLevel2TotalId",
            Operator = FilterOperator.IsEqualTo,
            Value = id
        });
    if ((radGridView1.Items.Count > 0) && (radGridView1.SelectedItem == null))
    {
        radGridView1.SelectedItem = radGridView1.Items[0];
    }
    else
    {
        AccountLevel3Total item = (AccountLevel3Total)radGridView1.SelectedItem;
        if (item == null)
        {
            {
                if (OnFilterChanged != null)
                    OnFilterChanged(this, new FilterChangedEventArgs(-1, filterDescription + Definitions.FILTER_SEPERATOR + Definitions.NO_FILTER));
            }
        }
        //else
        //    if (OnFilterChanged != null)
        //        OnFilterChanged(this, new FilterChangedEventArgs(item.Id));
    }
}

[Milan]

Hello Jonam,

This is a know issue which we expect to fix for the next official release. 

For the time being you can use the following workaround: Once a grid view is loaded (shown) you will be able to set its SelectedItem at any time (not only in the DataLoaded event). Once your application is Loaded you can wait a predefined amount of time, say 200 milliseconds, to allow all grids to load and setup the initial states of all 6 grids. 

Hope this helps.

Kind regards,
Milan
the Telerik team

[Jonam]

Hello Milan,

I can set the grid after it is loaded . "Once a grid view is loaded (shown)". But my grid is loaded but not yet shown? Is their way a simulate a shown but not actually show the form?

Because i can set the selectItem. This works after the shown.

The problem is grid6 depands on grid5. Grid 5 depands on grid4. Grid 4 depands on grid 3 etc.

If i go directly to grid6 the show event is raised but grid6 never received anything from grid5 because this one isn't show before. I can wait for 200 milliseconds but still the grid isn't showned. Are their any solutions to this problem?

kind regards,

Jonam

[Milan]

Hi Jonam,

Another possible solution is to set the selected item of the respective grid using Dispatcher.BeginInvoke which will be executed a bit later and this could work in your application.

Kind regards,
Milan
the Telerik team