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9 answers
115 views
Hi There,

I'm trying to find a way to have a text appear in the body of the GridView (where the background color appears) whenever the grid does not contain any rows (something like "The list is empty, click on XXX to add something!"). I could think of a few ways to do this, but was wondering if there is some kind of recommended way.

What do you guys say?

Thanks,
yonadav
Pavel Pavlov
Telerik team
 answered on 14 Apr 2010
6 answers
96 views
Hello!

I have problem with RadGridView grouping.

<telerikGrid:RadGridView x:Name="InmattVolymGridView" Language="sv-SE" AutoGenerateColumns="False"         
                                         ShowColumnFooters="True"
                                         VerticalAlignment="Top"
                                         ItemsSource="{Binding InmattaVolymer, ValidatesOnDataErrors=True, Mode=OneWay, UpdateSourceTrigger=PropertyChanged}"
                                         Validation.ErrorTemplate="{DynamicResource validationTemplate}"
                                         ToolTip="{Binding RelativeSource={RelativeSource Self}, Path=(Validation.Errors).CurrentItem.ErrorContent}" >
                   
                    <telerikGrid:RadGridView.Columns>
                        <telerikGrid:GridViewDataColumn DataMemberBinding="{Binding Sortiment}" Header="Sortiment" Width="85"/>
                        <telerikGrid:GridViewDataColumn DataMemberBinding="{Binding InmattM3F}" Header="m3f Inmätt" Width="100" >
                            <telerikGrid:GridViewDataColumn.AggregateFunctions>
                                <telerikData:SumFunction SourceField="InmattM3F" />
                            </telerikGrid:GridViewDataColumn.AggregateFunctions>
                        </telerikGrid:GridViewDataColumn>
                        <telerikGrid:GridViewDataColumn DataMemberBinding="{Binding SortimentTyp}" Header="Sortimenttyp" Width="85"/>
                    </telerikGrid:RadGridView.Columns>
                    <telerikGrid:RadGridView.GroupDescriptors>
                        <telerikData:GroupDescriptor SortDirection="Ascending" Member="SortimentTyp">
                            <telerikData:GroupDescriptor.AggregateFunctions>
                                <telerikData:CountFunction Caption="Total volym:" />
                            </telerikData:GroupDescriptor.AggregateFunctions>
                        </telerikData:GroupDescriptor>
                    </telerikGrid:RadGridView.GroupDescriptors>
                 </telerikGrid:RadGridView>

I get 'Invalid Property or Field' on Member in GroupDescription. How should I connect the grouping to the column.

Best regards / Anna
Rudis
Top achievements
Rank 1
 answered on 14 Apr 2010
1 answer
100 views
Two questions into one....

1: Can I customize the style of the scrollbars when using the scrolling/zooming features
2: Can I make it so that the width of the bars are fixed?

I'm trying to make a chart where there are a larger number elements that can be scrolled through (keeping the Y-Axis fixed).

Thanks!

Sia
Telerik team
 answered on 14 Apr 2010
2 answers
395 views
Hi,

I'm trying to bind the background of a GridViewDataColumn to a property in my ViewModel:
<radGrid:GridViewDataColumn Header="State" Width="090" Background="{Binding Path=State, Converter={StaticResource StateToColorConverter}}" DataMemberBinding="{Binding Path=State}"/> 

Based on the value of the State property the background should change: if State = new, the background should be green, if State = rejected the value should be red, and so on.
However, if I bind the State property to the Background, i get a BindingExpression path error stating that my State property is not found on my object, while the same databinding works fine on the DataMemberBinding.
Anyone got a clue what is wrong here?

The Xaml:
<radGrid:RadGridView ItemsSource="{Binding Orders}" > 
     <radGrid:RadGridView.Columns> 
          <radGrid:GridViewDataColumn Header="State" Width="090" 
                                     
Background="{Binding Path=State, Converter={StaticResource StateToColorConverter}}" 
                                     
DataMemberBinding="{Binding Path=State}"/>  
     </radGrid:RadGridView.Columns> 
</radGrid:RadGridView> 

and the code from the viewModel:
private ObservableCollection<SingleOrder> _orders = new ObservableCollection<SingleOrder>()  
public ObservableCollection<SingleOrder> Orders { get { return _orders; } }  
 
public class SingleOrder   
        : ViewModelBase  
{  
        private Instrument _instrument;  
        public Instrument Instrument  
        {  
            get { return _instrument; }  
            set 
            {  
                if (!Instrument.Equals(_instrument, value))  
                {  
                    _instrument = value;  
                    this.OnPropertyChanged("Instrument");  
                }  
            }  
        }  
 
        private System.String _state;  
        public System.String State  
        {  
            get { return _state; }  
            set 
            {  
                if (!String.Equals(_state, value))  
                {  
                    _state = value;  
                    this.OnPropertyChanged("State");  
 
                }  
            }  
        }  
}  
 

Thanks a lot!

Hans
Hans Smit
Top achievements
Rank 1
 answered on 14 Apr 2010
1 answer
368 views
Not a question this time. I just thought I might post this in case it is of help to others playing with the RadMap.
 
This is how to add images to the radmap map with a bit more control over the image than is available by simply adding a bitmap using the pinpoint method.

        // Set provider
                BingMapProvider provider = new BingMapProvider(MapMode.Aerial, true, "YOUR CODE GOES HERE");
                provider.IsTileCachingEnabled = true;
                mWindow.radmap.Provider = provider;

        // Create information layer
                iLayer = new InformationLayer();
                iLayer.MapControl = mWindow.radmap;
                mWindow.radmap.Items.Add(iLayer);

        // Create a new image object and add it to bing map.
                Uri uri = new Uri(@"" + imageName, UriKind.Relative);

                BitmapImage bitmap = new BitmapImage();
                bitmap.BeginInit();
                bitmap.UriSource = uri;
                bitmap.EndInit();

                Image image = new Image();
                image.Source = bitmap;
                image.Opacity = 0.85;
                image.Width = imageWidth;
                image.Height = imageHeight;
                image.Stretch = Stretch.UniformToFill;
                image.SnapsToDevicePixels = true;
                image.Name = Name;

        // When added to map, centre image over Lat/Long rather than use upper left corner for placement
                image.VerticalAlignment = VerticalAlignment.Center;
                image.HorizontalAlignment = HorizontalAlignment.Center;

        // Add the image to the map
                MapLayer.SetLocation(image, new Location(dLatitude, dLongitude));
                iLayer.Items.Add(image);

Andrey
Telerik team
 answered on 14 Apr 2010
1 answer
85 views

Hello!

I’m working with your Chart, and I found it working incorrectly.

<QuickStart:ExampleControl x:Class="Telerik.Windows.Examples.Chart.WPF.TwoDimensional.Bar.Example"
    xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
    xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
    xmlns:QuickStart="clr-namespace:Telerik.Windows.QuickStart;assembly=Telerik.Windows.QuickStart"
    xmlns:telerik="http://schemas.telerik.com/2008/xaml/presentation">
    <Grid>     
        <telerik:RadChart x:Name="RadChart1"/>
    </Grid>
</QuickStart:ExampleControl>

As a result I expect to see a Chart of 0x0 size, but instead it’s 800x600.
I do not understand where this size comes from, because it’s not written anywhere.
How can I solve that problem?
The matter is crucial for me, since in my application I need to implement the floating layout.
Thank you very much.

RadarSoft

Velin
Telerik team
 answered on 14 Apr 2010
1 answer
83 views
Out of the blue, I have started getting an assembly error when i try to debug my application. I am utilizing RadControls for WPF Q1 2010 in VS 2008:

Error   1   Could not load type 'Microsoft.Windows.Design.Metadata.ProvideMetadataAttribute' from assembly 'Microsoft.Windows.Design.Extensibility, Version=3.5.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a'. Line '1' Position '491'.   C:\Documents and Settings\akedzier\My Documents\Visual Studio 2008\Projects\CCMB_WPF\WpfApplication1\panels\Panel_04.xaml   12   13   CCBM_Wpf

Here is the code it tags as problematic. It is almost verbatim from the Telerik example:
            <ControlTemplate x:Key="NewGaugeBackground"  TargetType="{x:Type ContentControl}"
                <Grid Width="{TemplateBinding Width}" Height="{TemplateBinding Height}"
                    <Grid.ColumnDefinitions> 
                        <ColumnDefinition Width="20"/> 
                        <ColumnDefinition Width="*"/> 
                        <ColumnDefinition Width="20"/> 
                    </Grid.ColumnDefinitions> 
                    <Grid.RowDefinitions> 
                        <RowDefinition Height="20"/> 
                        <RowDefinition Height="*"/> 
                        <RowDefinition Height="20"/> 
                    </Grid.RowDefinitions> 
                    <Ellipse Stretch="Fill" Grid.ColumnSpan="3" Grid.RowSpan="3"
                        <Ellipse.Fill> 
                            <ImageBrush ImageSource="pack://application:,,,/images/bronze.jpg" /> 
                        </Ellipse.Fill> 
                        <Ellipse.BitmapEffect> 
                            <BevelBitmapEffect BevelWidth="20" 
                                EdgeProfile="BulgedUp" 
                                Relief="0.5" 
                                Smoothness="0.3" /> 
                        </Ellipse.BitmapEffect> 
                    </Ellipse> 
                    <Ellipse Grid.Row="1" Grid.Column="1" Stretch="Fill" Fill="White" /> 
                    <Ellipse Grid.Row="1" Grid.Column="1" Height="48" Width="48"
                        <Ellipse.Fill> 
                            <ImageBrush ImageSource="pack://application:,,,/images/bronze.jpg" /> 
                        </Ellipse.Fill> 
                        <Ellipse.BitmapEffect> 
                            <BevelBitmapEffect BevelWidth="5" 
                                EdgeProfile="BulgedUp" 
                                Relief="0.5" 
                                Smoothness="0.3" /> 
                        </Ellipse.BitmapEffect> 
                    </Ellipse> 
                </Grid> 
            </ControlTemplate> 

This has compiled and run just fine previously. Not sure what changed to cause the error.


Andrey
Telerik team
 answered on 14 Apr 2010
1 answer
123 views
        I have seen the instruction about Map and know it supports Bing's map.  Now I wanna know if it supports Google's map.  If the answer is YES, how to do it?
Nikolay
Telerik team
 answered on 14 Apr 2010
3 answers
95 views
Hi,

The call to RadWindow.Alert("msg") crashes on Window XP PRO while it's working on Windows Seven boxes

We are using this telerik package RadControls_for_WPF_2010_1_0309_DEV.msi

Please find below the error stack we have during the crash 

{"La valeur '/Telerik.Windows.Controls.Navigation;component/Themes/GenericVista.xaml' ne peut pas ĂŞtre attribuĂ©e Ă  la propriĂ©tĂ© 'Source' de l'objet 'System.Windows.ResourceDictionary'. La valeur '/Telerik.Windows.Controls.Navigation;component/themes/vista/CarouselDataFieldPresenter.xaml' ne peut pas ĂŞtre attribuĂ©e Ă  la propriĂ©tĂ© 'Source' de l'objet 'System.Windows.ResourceDictionary'. La rĂ©fĂ©rence d'objet n'est pas dĂ©finie Ă  une instance d'un objet.  Erreur Ă  l'objet 'System.Windows.ResourceDictionary' dans le fichier de balisage 'Telerik.Windows.Controls.Navigation;component/Themes/GenericVista.xaml'.  Erreur Ă  l'objet 'System.Windows.ResourceDictionary'."} 


Thank you for your support.

Best Regards.

Luciano





Boyan
Telerik team
 answered on 14 Apr 2010
1 answer
113 views
I have a RadToolBar with some buttons.
Some of them are navigationbuttons which I want to Enable/Disable from codebehind:

<Button x:Name="btnFirst" Command="{Binding FirstCommand}" IsEnabled="{Binding IsLeftEnabled}" Width="26">
                <Image Width="16" Height="16" Source="/Star3;component/Images/16/navigate_beginning.png"/>     
</Button>     

It works not 100%: I had expected a gray image when disabled.
But the image just disappeares.
And it won't come back when enabled again...     

Marinus
Vladislav
Telerik team
 answered on 14 Apr 2010
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