Questions on UI for WPF Forum

3 answers

533 views

Binding Row Selection to Command for MVVM pattern?

I have a telerik RadGridView that I would like to bind the row selection to a ICommand object, so my viewModel can execute it's code. I obviously cannot bind the SelectionChanged Event to a command, so I was wondering if there was another way to do this currently? Thank you for any assistance.

GridView

answered on 14 Jul 2009

1 answer

82 views

Support to VS 2008 Express Edition

Hi,
I want to build an applicaiton using WPF and ORM from telerik....Do you support VS 2008 Express Edition?
Thanks in advance.

General Discussions

answered on 13 Jul 2009

1 answer

127 views

Expandable Row Style

Hi,

How can I use a button click on an expandable row style to show the child data?

Currently using the click event, i get the Expandable Row and set IsExpanded=True, but this makes no difference.

GridView

answered on 13 Jul 2009

3 answers

346 views

Reorder rows in the RadGridView

I and my partner are trying to figure out how to move current row (the highlighted one) in the RadGridView by pressing "Up" or "Down" buttons on our form. Is there a way of doing it ?

GridView

answered on 13 Jul 2009

1 answer

343 views

Asynchronous loading blocks of data

I'm populating a RadGridView with data that comes in asynchronously from a WCF service. The service sends blocks of records, say 200 at a time, which are then put into an ObservableCollection which is bound to the ItemsSource property of the grid. I would like to turn on Asynchronous loading of the data (DataLoadMode=Asynchronous), but when I do this, I get the following exception:

Collection was modified; enumeration operation may not execute.

    
            at System.ThrowHelper.ThrowInvalidOperationException(ExceptionResource resource)  
        
            at System.Collections.Generic.List`1.Enumerator.MoveNextRare()  
        
            at System.Collections.Generic.List`1.Enumerator.MoveNext()  
        
            at System.Linq.Enumerable.WhereEnumerableIterator`1.MoveNext()  
        
            at Telerik.Windows.Data.QueryableCollectionView.CreateInternalList() in c:\\Builds\\WPF_Scrum\\Core_WPF\\Sources\\Development\\Core\\Data\\Collections\\QueryableCollectionView.cs:line 423  
        
            at Telerik.Windows.Data.QueryableCollectionView.get_InternalList() in c:\\Builds\\WPF_Scrum\\Core_WPF\\Sources\\Development\\Core\\Data\\Collections\\QueryableCollectionView.cs:line 406  
        
            at Telerik.Windows.Data.QueryableCollectionView.GetEnumerator() in c:\\Builds\\WPF_Scrum\\Core_WPF\\Sources\\Development\\Core\\Data\\Collections\\QueryableCollectionView.cs:line 269  
        
            at Telerik.Windows.Data.RecordFactory.<CreateRecordsForGroupRecord>d__0.MoveNext() in c:\\Builds\\WPF_Scrum\\Core_WPF\\Sources\\Development\\Core\\Data\\Data\\Records\\RecordFactory.cs:line 28  
        
            at System.Collections.Generic.List`1..ctor(IEnumerable`1 collection)\r\n   at System.Linq.Enumerable.ToList[TSource](IEnumerable`1 source)  
        
            at Telerik.Windows.Controls.GridView.GridViewDataControl.PopulateRecords() in c:\\Builds\\WPF_Scrum\\GridView_WPF\\Sources\\Development\\Controls\\GridView\\GridView\\GridView\\GridViewDataControl.cs:line 3178  
        
            at Telerik.Windows.Controls.GridView.GridViewDataControl.OnAsyncDataLoadWorkerDoWork(Object sender, DoWorkEventArgs e) in c:\\Builds\\WPF_Scrum\\GridView_WPF\\Sources\\Development\\Controls\\GridView\\GridView\\GridView\\GridViewDataControl.cs:line 3153  
        
            at System.ComponentModel.BackgroundWorker.OnDoWork(DoWorkEventArgs e)\r\n   at System.ComponentModel.BackgroundWorker.WorkerThreadStart(Object argument)"

This is with the Q2 2009 release of the WPF controls.

The datasource will be continually updated and changed as records are added and deleted to it.

Any ideas on how I can get this to work safely?

Thanks!

GridView

answered on 13 Jul 2009

1 answer

93 views

Change GridRow background colors

Hi There

I am wondering if it is possible to change row background colors programmatically instead of using the UseAlternateRowStyle property. Since the latter only allows to choose two colors. If possible, How?

Many thanks

Fu

GridView

answered on 10 Jul 2009

1 answer

183 views

How do i make a label inside a gauge?

I want to put a label with the unit inside my gauge, for example "C°", that is on the same place if i resize the gauge. How do i do?

Gauges

answered on 10 Jul 2009

3 answers

148 views

Edit Control Parts in Blend

Blend 2.5
RadControls 2008 Q3

Edit Control Parts (Template) > Edit a Copy > This Document >

Exception: Type Reference cannot find public type named 'RadGridView'

Any clue?

GridView

answered on 09 Jul 2009

2 answers

113 views

Excessive gaps at each end of line chart

Using the new facilities in the Q2 charts, e.g. strict mode, and the automatic label stepping - many thanks for doing these - I am now much happier with the radchart for the purpose I want to put it to - real time plotting of weather data. I've bound a line chart to a collection containing a DateTime and a temperature, and the resulting chart is working well, apart from the fact that it doesn't fill the whole X axis. Sometimes the gap at each end is quite large relative to the size of the plot, e.g:

http://nybbles.co.uk/images/chart1.jpg

The first point was actually plotted at about 21:20:30.

Is it possible to make the line fill the chart?

Steve

Chart

answered on 09 Jul 2009

3 answers

226 views

Can't bind to hierarchical object data

Hi

I've been following this example for binding to object data.

However I can't specify the <DataTemplate>.

Instead I get the message "Property 'VisualTree' does not support values of type 'DataTemplate'".

What am I doing wrong?

    
            <UserControl x:Class="ReportDistribution.Client.ReportMgr.WpfApp.UserControls.ReportMenuPanel" 
        
                xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"     
        
                xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"     
        
                xmlns:telerik="clr-namespace:Telerik.Windows.Controls;assembly=Telerik.Windows.Controls.Navigation" 
        
                Height="300" Width="270"> 
        
                <UserControl.Resources>         
        
                    <ItemsControl> 
        
                        <ItemsControl.ItemTemplate> 
        
                            <HierarchicalDataTemplate x:Key="Entity" ItemsSource="{Binding ClientReport}">                    
        
                                <DataTemplate> 
        
                                    <TextBlock Text="{Binding Name}"></TextBlock> 
        
                                </DataTemplate> 
        
                            </HierarchicalDataTemplate> 
        
                        </ItemsControl.ItemTemplate> 
        
                    </ItemsControl>    
        
                </UserControl.Resources> 
        
                <Grid>         
        
                    <Grid.RowDefinitions> 
        
                        <RowDefinition Height="35"></RowDefinition> 
        
                        <RowDefinition></RowDefinition> 
        
                    </Grid.RowDefinitions> 
        
                    <Grid.ColumnDefinitions> 
        
                        <ColumnDefinition></ColumnDefinition> 
        
                    </Grid.ColumnDefinitions> 
        
                    <Border Grid.Row="0" BorderBrush="Black" BorderThickness="1"> 
        
                        <Border.Background> 
        
                            <LinearGradientBrush StartPoint="0.5,0" EndPoint="0.5,1"> 
        
                                <GradientStop Color="#ADCFFF" /> 
        
                                <GradientStop Color="#599BFF" Offset="1"></GradientStop> 
        
                            </LinearGradientBrush> 
        
                        </Border.Background> 
        
                    </Border> 
        
                    <TextBlock Grid.Row="0" VerticalAlignment="Center" FontSize="14" FontWeight="Bold" Margin="5">Reports</TextBlock> 
        
                    <Border Grid.Row="1" BorderBrush="Black" BorderThickness="1,0,1,1"> 
        
                        <Border.Background> 
        
                            <SolidColorBrush Color="White" /> 
        
                        </Border.Background> 
        
                    </Border> 
        
                    <telerik:RadPanelBar x:Name="reportMenuPanelBar" Grid.Row="1" Margin="1,0,1,1" ItemTemplate="{StaticResource Entity}" ItemsSource="{Binding}"> 
        
                    </telerik:RadPanelBar> 
        
                </Grid> 
        
            </UserControl>

PanelBar

answered on 09 Jul 2009