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1 answer
344 views

Hi,

I have a FilePathPicker with DialogType="OpenFile".  Is there a way to set a default directory so that wen a user wants to pick a file, the FilePathPicker opens the the dialog with the files in this directory ?

Regards,
Hans

 
Martin Ivanov
Telerik team
 answered on 09 Sep 2020
1 answer
72 views

Bonjour
Lorsque j'ouvre un PDF à l'aide du bouton "Ouvrir" de la radtoolbar DE PdfViewer, j'aimerais obtenir le chemin du PDF sélectionné. Quelle est la meilleure façon à procéder? 

Merci

Dimitar
Telerik team
 answered on 09 Sep 2020
1 answer
438 views

We are currently setting up some tests with Microsofts UI Automation.

For my next steps I'm searching for a way to implement selection for GridView rows.
So far I couldn't really find any documentations how to deal with this with Telerik controls in detail.

Currently I access the grid, grid row and grid row cells as follows:

AutomationElement radGridView = Element.TryFindId (OrderConstants.ORDER_GRID_ID);
AutomationElementCollection orderRowElements = radGridView.FindAll (
                TreeScope.Descendants,
                new PropertyCondition (AutomationElement.ClassNameProperty, "GridViewRow"));
 
int rowId = 0;
foreach (AutomationElement orderRowElement in orderRowElements)
{
    ((SelectionItemPattern) orderRowElement.GetCurrentPattern(SelectionItemPattern.Pattern)).Select() // Is Not Supported Pattern
 
    AutomationElement elem = orderRowElement.TryFindId ($"Cell_{rowId++}_0");
    ((SelectionItemPattern) elem.GetCurrentPattern(SelectionItemPattern.Pattern)).Select() // Is Not Supported Pattern
}

 

How can I select

  • a single row
  • multiple rows
  • search within the grid (because it looks like rows are not available before they are processed by virtualization of the grid)

How is the RadGridView intended to be used in a automated way?

Currently I'm using .Net Framework 4 with Telerik Version 2018.3

 

Any help is appreciated, thanks.

Martin Ivanov
Telerik team
 answered on 08 Sep 2020
3 answers
74 views

Hello! 

I'm trying to figure out how to get the contents of my grid to sort by a property member that is not exposed to the UI via a column. The item source for my grid comes from a collection view defined on my ViewModel. This collection view has sort descriptors defined in C#, one of which is to sort by a boolean property that is not bound to a column on the grid, but that sort descriptor is not honored at run-time. 

 

Any assistance is appreciated.

Dilyan Traykov
Telerik team
 answered on 08 Sep 2020
2 answers
123 views

We have this sort of filter

        private CompositeFilterDescriptor _deletedNewFilterDescriptor = new CompositeFilterDescriptor()
        {
            LogicalOperator = FilterCompositionLogicalOperator.Or,
            FilterDescriptors =
                    {
                        new FilterDescriptor("Column1", FilterOperator.IsNotEqualTo, "MyState"),
                        new FilterDescriptor("Column2", FilterOperator.IsNotEqualTo, "YourState")
                    }
        };

and at some point when we refresh the grid, the rows that should be filtered get displayed. So we have to do something like this which also fails on occasions

 

        void grd_loaded(object sender, RoutedEventArgs e)
        {
            // For some reason, adding filters in constructors gets cleared somewhere, so add in Loaded methods.
            if (!grd.FilterDescriptors.Contains(_deletedNewFilterDescriptor))
                grd.FilterDescriptors.Add(_deletedNewFilterDescriptor);
        }

 

Any help would be appreciated. Because we will have to filter those rows at the SQL fetching time and not afterwards. This means changing the existing code.

Dilyan Traykov
Telerik team
 answered on 08 Sep 2020
28 answers
1.4K+ views
I need separate context menu for Header and Rows. not able to find way to do it. Please provide an example.

Regards
Sanket
Dinko | Tech Support Engineer
Telerik team
 answered on 07 Sep 2020
3 answers
189 views

Hello,

I've got a problem. I need to show many values and RadGrid takes a big amount of time to load data (1 minute)
I thought about virtualization, but I didn't like the partial loading of data. and it makes lots of troubles for me.

Is there any possibility to load partly data to Radgrid?

I mean to show 100 of values., +100 and +100 until fully loaded The db access is fast, only the control shows them really slow.

Regards

Dilyan Traykov
Telerik team
 answered on 04 Sep 2020
5 answers
1.0K+ views

How can I set the RadDateTimePicker selected value to current date?

I have a form for adding new record with RadDateTimePicker binded to DateTime? datatype. Since this is for new record, the expected datetime value is NULL.

How can I set the RadDateTimePicker selectedvalue to current date on form load and not NULL/Empty. 

 

Thanks you.

Dinko | Tech Support Engineer
Telerik team
 answered on 04 Sep 2020
2 answers
492 views
Hello,

I´m using a RadComboBox with grouping, like it works with the default ComboBox. So far so good, but the initial value is set to the first Item of the lcv. No difference when commenting out the binding for SelectedValue.

Without Grouping the initial value is null and the box is empty. Is there a way achive this behavior without adding an empty item to the collection? Because I want to use the ClearSelectionButton feature.

 
<telerik:RadComboBox ItemsSource="{Binding ArtenLcv}" SelectedValuePath="Wert" DisplayMemberPath="Text" SelectedValue="{Binding ArtSelected}"
                                             ClearSelectionButtonVisibility="{Binding SelectedValue, RelativeSource={RelativeSource Self}, Converter={StaticResource objectVisibilityConverter}}" ClearSelectionButtonContent="Clear">
    <telerik:RadComboBox.GroupStyle>
        <GroupStyle>
            <GroupStyle.HeaderTemplate>
                <DataTemplate>
                    <TextBlock Text="{Binding Name}" Margin="2" IsEnabled="False" />
                </DataTemplate>
            </GroupStyle.HeaderTemplate>
        </GroupStyle>
    </telerik:RadComboBox.GroupStyle>
</telerik:RadComboBox>

 

Regards

Carsten
Top achievements
Rank 1
Veteran
 answered on 04 Sep 2020
1 answer
78 views

Hello,

I've got an issue with this function. I am using RadGrid together with a timebar, where I limit the time of the entries.
Data is from sql server using entity framework. Set Loadsize to 50

Now if I change timebar, sometimes it freezes and I see using sql profiler that it makes queries all the time every second.

 OFFSET 11000 ROWS FETCH NEXT 50 ROWS ONLY 

last one I checked
OFFSET 25200 ROWS FETCH NEXT 50 ROWS ONLY 

The user didn't interact because gui is frozen, but the queries still go on.

Seems to be a bug.

User1564
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Rank 1
Veteran
 answered on 03 Sep 2020
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