So i have this model:

So each mechine adapter have this members.
So i have this Combobox that show all my Machine Adapters:

So in this case i can see all my machine adapters with this properties.
Now i want to see also my adapters Rate in MBit/sec so i added this members:

the member Rate is MBit/sec and the value is changing every 1 sec. the series is for the chart in order to put into the values.
So i added template with chartand now this is my Combobox:

So now all i can see in my Combobox is an empty chart without the other properties. So my question is how can i populate my chart and also see the other properties (Name, IPAddress).

Hello,

I have some slides in my Sort View with a drag and drop functionality. When I wanted to drag and drop the slides its working fine, but when I was trying to move the 'last slide" it's showing that drag after the "last slide".

Please give me an idea to get rid of that text for only last slide. It has to show up to last but one slides but I don't want this for last slide, it's only happening when Im having the scrollbar at the bottom. Here I'm attaching the screenshots of the issue please go through them, and if you can give me suggestion that would be great for me.

Thank you,

Naga.

I identified performance loss while using Alternating rows.

Based on already existing posts: http://www.telerik.com/forums/alternating-rows-hurts-performance

I implemented my own RowStyle selector:

    public class RadGridViewAlternatingRowTemplateSelector : StyleSelector
    {
        private static int counter = int.MinValue;

        public override Style SelectStyle(object item, DependencyObject container)
        {
            return (counter++ % 2) == 0 ? EvenRowStyle : OddRowStyle;
        }

        public Style EvenRowStyle { get; set; }
        public Style OddRowStyle { get; set; }
    }

I tried to keep it as short and simple as possible for a maximum performance.

    <template:RadGridViewAlternatingRowTemplateSelector x:Key="AlternativeRowStyleSelector">
        <template:RadGridViewAlternatingRowTemplateSelector.EvenRowStyle>
            <Style TargetType="telerik:GridViewRow" BasedOn="{StaticResource GridViewRowStyle}">
                <Setter Property="Background" Value="{DynamicResource RowBackgroundColor}"/>
            </Style>
        </template:RadGridViewAlternatingRowTemplateSelector.EvenRowStyle>
        <template:RadGridViewAlternatingRowTemplateSelector.OddRowStyle>
            <Style TargetType="telerik:GridViewRow" BasedOn="{StaticResource GridViewRowStyle}">
                <Setter Property="Background" Value="{DynamicResource SecondRowBackgroundColor}"/>
            </Style>
        </template:RadGridViewAlternatingRowTemplateSelector.OddRowStyle>
    </template:RadGridViewAlternatingRowTemplateSelector>

 <Style TargetType="{x:Type telerik:RadGridView}" BasedOn="{StaticResource RadGridViewStyle}">
        <Setter Property="RowStyleSelector" Value="{StaticResource AlternativeRowStyleSelector}" />
        <Setter Property="GridLinesVisibility" Value="Vertical" />
        <Setter Property="ValidatesOnDataErrors" Value="InEditMode" />
        <Setter Property="AutoGenerateColumns" Value="False" />
        <Setter Property="VerticalAlignment" Value="Stretch" />
        <Setter Property="HorizontalAlignment" Value="Stretch" />
        <Setter Property="IsReadOnly" Value="True" />
        <Setter Property="ShowGroupPanel" Value="False" />
        <!--<Setter Property="ShowColumnSortIndexes" Value="False" />-->
         <!--This is not possible, because no DP!--> 
        <Setter Property="RowIndicatorVisibility" Value="Collapsed" />
        <Setter Property="IsFilteringAllowed" Value="False" />
        <Setter Property="CanUserSortColumns" Value="False" />
        <Setter Property="CanUserSortGroups" Value="False" />
        <Setter Property="CanUserReorderColumns" Value="False" />
        <Setter Property="CanUserResizeColumns" Value="False" />
        <Setter Property="CanUserResizeRows" Value="False" />
        <Setter Property="CanUserFreezeColumns" Value="False" />
        <Setter Property="FontSize" Value="{DynamicResource FontSize}" />
        <Setter Property="FontFamily" Value="{DynamicResource FontFamily}" />
        <Setter Property="EnableColumnVirtualization" Value="False" />
        <Setter Property="EnableRowVirtualization" Value="True" />
        <Setter Property="GroupRenderMode" Value="Flat" />
    </Style>

In addition, I tried using NoXAML assemblies (as you can see at my style definition) to even squeeze more performance out of Telerik controls.
Summary: NoXAML Assemblies, Own Style Selector, GroupRenderMode Flat, other properties in Style, RadGridView in * Grid Row,...
There isn't any single point left I could optimize (refering to this article: http://docs.telerik.com/devtools/wpf/controls/radgridview/troubleshooting/performance)

The performance is pretty damn nice if I use no alternating rows.
But when I use them (and I definitely have to, with or without Telerik) the performance drops to an unacceptable point.

So my question here is: Is there anything I can do to speed things up? Are there any updates on alternating row performance?

Thanks in advance

Is there a way to create a maskeditfield when using AutoGeneratingField on a DataForm?  

I see one example of switching to a new field type in your documentation:

e.DataField = new DataFormNumericUpDownField() { Label = e.DataField.Label, DataMemberBinding = e.DataField.DataMemberBinding };

However DataFormNumericUpDownField does not seem to exist not to mention it does not sound like the type of field I am looking for.

Is there a way to switch to a Mask Edit control in the AutoGeneratingField event?

If so, can you show an example of this?

Thanks...

Hi. I am using RadMap with a UriImageProvider to fetch a tile from a given URI. Is there a way to get a callback when the image from the URI has been downloaded? 

Some images can be very large and slow to download in slower internet speeds. Currently I have no way to determine if the image is indeed downloading or not, or how long to wait for it to complete.

Cheers

Richard

Hi,

i'm look for a possibility to create a "Multi-Platform-App" running on Windwos-Pc, Tablet/Handy (ioS, Android) using on App Buidlder.
Is there a way to do this with Telerik Tools?

Thanks
BEST REGARDS

RENE

Hi,

I would like create a link programmaticaly with a shape and i would like to specify connector for source and target.

Capture1 is what a want

Capture2 is what i have actually

Greeting,

I am currently working on an interface which resembles Visual Studio. We use a lot of Panes and in one of them we added a PanelBar with PanelBarItems in it.   In each PanelBarItem, we use a different UserControl where we add label and NumericUpDown. Everything works great as expected but during runtime, the ContentControl adds a big margin.  Our GUI will be heavy in term of controls and we need to reduce this margin to make more space for them.  I tried following the instructions online to modify the styling of the PanelBarItem but to no avail.  While some modifications affect the end result, I cannot change the margin of the ControlContent.

Here is the code in the pane :

And here is the code for the styling.

I changed the margin at line 37 and line 76 for zero but it seems that they are overwritten by something else.  I added in attachment an image showing the Visual tree during runtime and where the margin is added.  I am fairly new to styling but any help would be greatly appreciated.

Thank you

Hi Telerik,

We are using RadGridView's -Column- AggregateFunction. We have disabled the Group Panel and Group Footer.

We are binding to an ObservableCollection of objects which implement INotifyPropertyChanged.

We have noticed that calling CalculateAggregates() updates the underlying values in the AggregatesResults collection after each call to CalculateAggregates(), however, the RadGridView's aggregate footer row in the UI will only ever update the values after the first call; subsequent calls will not update the value in the footer row.

In other words, the underlying AggregateResults values are always updated when calling CalculateAggregates(), however, the results on the screen in the RadGridView's aggregate footer row will remain as only the first updated calculated aggregate values, and will ignore displaying any further updates to the underlying aggregate values.

We have also called .Rebind() with the same effect.

XAML:

<telerik:GridViewDataColumn DataMemberBinding="{Binding aDatum}" Header="Data" DataFormatString="{}{0:,##0;(#,##0);0}" IsReadOnly="True" FooterCellStyle="{StaticResource GridViewFooterCellStyle}" HeaderTextAlignment="Center">
                            <telerik:GridViewDataColumn.AggregateFunctions>
                                <telerik:SumFunction ResultFormatString="{}{0:#,##0;(#,##0);0}"/>
                            </telerik:GridViewDataColumn.AggregateFunctions>
                        </telerik:GridViewDataColumn>

Style:

            <Style TargetType="telerik:GridViewFooterCell" x:Key="GridViewFooterCellStyle">

                <Setter Property="FontWeight" Value="Bold"/>
            </Style>

Could you please give direction on this issue? Why does the aggregate only refresh the RadGridView's footer row the first time calling CalculateAggregates() and not on subsequent calls to this function?

Kind regards

I found an example of using RadDataForm like a popup on these forums.  Is there a way to add a button in the upper right to cancel and close the popup?

It looks as if in the ERP example you are really placing the DataForm in a new window (RadWindow) to accomplish this.  Is that the only way or is there an easier way to make this happen?

Thanks..