Hello Telerik,

 I need your expertise on a situation about one GridView.

The gridview display a daily rows with a running value (3 column Date, Value, RunningValueOfValue). As it is a daily row with a few year of historical data there is a couple of thousand row in the datasource. As there is a running value, a change on one row should also update all following row.

The datasource of the grid is a WCF Service. On CellValueChanged, I send the modification to the service which will return the new set of data (as an array) for all row (The calculation of the running value is made in the WCF Service). Then I have tested two options :

1. I set the new array as the datasource of the grid. It is fast but the position of the grid is set back on top and I don't think my user will be happy about it.
2. I use the new array to update each object in the actual binding source. It is very slow (more than 1 min) because the binding list raise a lot of event for updating the gridview (depending on the size). If I play with RaiseListChangedEvents and ResetBindings, it become fast again but the ResetBindings will have the effect as changing the datasource...

What is the best way to handle this kind of situation ? Using an unbound datagridview ?

Hi,

 I try to use a custom image to replace the default arrow icon used to navigate in the hierarchical structure in RadGridView winform control.

No problem to set the image the cellElement does not fit to the image size.
Here's my code :

 How can I achieve this please ?

 Thanks.

Hello, is there a way to change the arrow size of a radpopupeditor ?

I tried the following, that changes the dropdown button size but I cannot find a way to edit the arrow size, the problem is that (on windows 10, 4k monitor, 200dpi screen) the arrow is almost invisible.

Best regards

Andrea

I have two classes

One is EQConfig, the other is HSMSConfig (I attached) and EQConfig has a property which name is hsmsConfig and HSMSConfig type.

Then, I set below

this.radPropertyGrid1.SelectedObject = EQConfig;

Then I expected I can expand hsmsConfig property like

Hi folks,

i am working on a project where is want to plot multiple lineseries to compare racing times off different drivers on track during a race.

My problem is that i don't know the number or the maximum number of drivers on track at design time.

Of course i could add several series at runtime and simply don't fill the unused, but how can i manage this from code let's say in a For Next Loop.

Suggestion in vb would be nice. Using

        Dim lineSeries As New LineSeries()
        For id = 0 To arrFahrer.Count - 1
            For i As Integer = 0 To arrFahrer(id).douRundenZeiten.Count - 2
                rcvRundenzeiten.Series(id).DataPoints.Add(New CategoricalDataPoint(arrFahrer(id).douRundenZeiten.Item(i)))
            Next i
            rcvRundenzeiten.Series.Add(lineSeries)
        Next

just creates one series with all points.

Kind regards

 Martin

Hello all 

how to add button in radtextboxcontrol in UI 

thanks before 

Hengky

Hello,

i'm trying to translate the PopUp for filtering a column in RadGridView.

I am using "FilterPopupRequired(object sender, FilterPopupRequiredEventArgs e) " to manipulate the popup.

I got all Elements translated except of two:   (attached is a image that shows the two problematic elements)

- Textbox that shows "Search...":

      I tried:                    

If i set .ext i see it is the right control im changing but i want to set the text if the user did not enter any text so i tried NullText but it is not working. Any ideas?

- First Element in TreeView that shows "All":

   i tried to get the elements of the Treeview but i can't get them.

   Here is my code:

Thank you very much.

Best Regards,

Yves