Hi,

I need to create gauges dynamically and put them in a WrapPanel. So I created a user control as follows:

The code behind looks like:
It all works fine if I add just one PercentUtilizationGauge to the WrapPanel. However as soon as I add second PercentUtilizationGauge several excaptions of type System.InvalidOperationException are thrown:

A first chance exception of type 'System.InvalidOperationException' occurred in System.Core.dll

Additional information: Sequence contains no matching element

They all seem to occur in Telerik code - the call stack looks like:

> System.Core.dll!System.Linq.Enumerable.First<object>(System.Collections.Generic.IEnumerable<object> source, System.Func<object,bool> predicate) + 0x150 bytes 
  Telerik.Windows.Controls.Gauge.dll!Telerik.Windows.Controls.Gauges.ScaleBase.FindOffPosition(Telerik.Windows.Controls.Gauges.IGaugeIndicator indicator = {Telerik.Windows.Controls.Gauges.Needle}) Line 1930 + 0x7b bytes C#
  Telerik.Windows.Controls.Gauge.dll!Telerik.Windows.Controls.Gauges.RadialScale.ArrangeIndicator(Telerik.Windows.Controls.Gauges.IGaugeIndicator indicator = {Telerik.Windows.Controls.Gauges.Needle}) Line 314 + 0xc bytes C#
  Telerik.Windows.Controls.Gauge.dll!Telerik.Windows.Controls.Gauges.IndicatorBase.ArrangeOverride(System.Windows.Size finalSize = {162,30}) Line 1121 C#
  Telerik.Windows.Controls.Gauge.dll!Telerik.Windows.Controls.Gauges.Needle.ArrangeOverride(System.Windows.Size finalSize = {162,30}) Line 94 + 0x26 bytes C#

So how do I find out what is going wrong here? Any help would be greatly appreciated.
Thanks

-Ambar

Hi,

I have used RadTreelistview  in one my project to achive Parent,child relation(Plz check attached Image).

I want the action like when i click the parent checkbox the assosiated childnode checkboxes has to check in RadTreelistview .

Pn:I have identified IsTriState property in RadTreeview to achive this,but this property is not there in RadTreelistview


Please help me.

I have a RadGrid nested within another grid.  During the DataLoading event for the main outer grid, I have setup a RowLoaded event.  In this event, the click event for the checkboxes in the inner grid are wired to the appropriate method.  However, when I run the project the click event will not fire.  Any suggestions will be greatly appreciated.  Thank you.

<Window x:Class="FSPUpgradeServer.MainScreen"
        xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
        xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
        xmlns:telerik="http://schemas.telerik.com/2008/xaml/presentation"
        xmlns:fsp="clr-namespace:HarlandFS.FSP.Controls;assembly=FSPControls"
        Title="MainScreen"
        Height="500"
        Width="615">
    <Window.Resources>
        <Style TargetType="{x:Type telerik:GridViewRow}">
            <EventSetter Event="GotFocus"
                         Handler="GridViewRow_GotFocus"/>
        </Style>

    </Window.Resources>
    <Grid>
        <Grid.ColumnDefinitions>
            <ColumnDefinition Width="80*" />
            <ColumnDefinition Width="80*" />
            <ColumnDefinition Width="80*" />
            <ColumnDefinition Width="254*" />
        </Grid.ColumnDefinitions>
        <Grid.RowDefinitions>
            <RowDefinition Height="268*" />
            <RowDefinition Height="27*" />
            <RowDefinition Height="167*" />
        </Grid.RowDefinitions>
        <telerik:RadGridView Name="grdSystems"
                             AutoGenerateColumns="False"
                             IsFilteringAllowed="False"
                             ShowGroupPanel="False"
                             Grid.ColumnSpan="4"
                             Loaded="grdSystems_Loaded"
                             DataLoading="grdSystems_DataLoading">
            <telerik:RadGridView.Columns>
                <telerik:GridViewDataColumn Width="Auto"
                                            Header="Upgrade"
                                            IsReorderable="False"
                                            UniqueName="Upgrade">
                    <telerik:GridViewColumn.CellTemplate>
                        <DataTemplate>
                            <CheckBox Click="CheckBox_Click">
                            </CheckBox>
                        </DataTemplate>
                    </telerik:GridViewColumn.CellTemplate>
                </telerik:GridViewDataColumn>
                <telerik:GridViewDataColumn Width="Auto"
                                            Header="System Name"
                                            IsReadOnly="True"
                                            IsReorderable="False"
                                            UniqueName="SystemName" />
                <telerik:GridViewDataColumn Width="Auto"
                                            Header="# of Accts"
                                            IsReadOnly="True"
                                            IsReorderable="False"
                                            UniqueName="NumberOfAccounts"
                                            TextAlignment="Right" />
                <telerik:GridViewDataColumn Width="Auto"
                                            Header="# of Terminals"
                                            IsReadOnly="True"
                                            IsReorderable="False"
                                            UniqueName="NumberOfTerminals"
                                            TextAlignment="Right" />
                <telerik:GridViewDataColumn Width="Auto"
                                            Header="# of msgs sent"
                                            IsReadOnly="True"
                                            IsReorderable="False"
                                            UniqueName="NumberOfMsgSent"
                                            TextAlignment="Right" />
                <telerik:GridViewDataColumn Width="Auto"
                                            Header="# msgs received"
                                            IsReadOnly="True"
                                            IsReorderable="False"
                                            TextAlignment="Right" />
            </telerik:RadGridView.Columns>
        </telerik:RadGridView>
        <Button Name="btnAdd"
                Grid.Row="1"
                Click="btnAdd_Click">_Add</Button>
        <Button Name="btnEdit"
                Grid.Row="1"
                Grid.Column="1"
                Click="btnEdit_Click">_Edit</Button>
        <Button Name="btnDelete"
                Grid.Row="1"
                Grid.Column="2"
                Click="btnDelete_Click">_Delete</Button>
        <GroupBox Grid.Row="2"
                  Grid.ColumnSpan="4">
            <Grid>
                <Grid.RowDefinitions>
                    <RowDefinition Height="27*" />
                    <RowDefinition Height="27*" />
                    <RowDefinition Height="27*" />
                    <RowDefinition Height="27*" />
                    <RowDefinition Height="27*" />
                    <RowDefinition Height="27*" />
                </Grid.RowDefinitions>
                <Grid.ColumnDefinitions>
                    <ColumnDefinition Width="133*" />
                    <ColumnDefinition Width="100*" />
                    <ColumnDefinition Width="133*" />
                    <ColumnDefinition Width="100*" />
                </Grid.ColumnDefinitions>
                <Label VerticalAlignment="Center">File Location</Label>
                <fsp:FSPTextBox Name="txtClientLocation"
                                Grid.Column="1"
                                Margin="2"
                                LostFocus="txtClientLocation_LostFocus"
                                IsRequired="True"
                                Text=".\FSP.msi"
                                Grid.ColumnSpan="2" />
                <Button Name="btnBrowse"
                        Grid.Column="3"
                        Click="btnBrowse_Click"
                        Margin="2">_Browse</Button>
                <Label Grid.Row="1"
                       VerticalAlignment="Center">Host Location</Label>
                <fsp:FSPTextBox Name="txtHostLocation"
                                Grid.Row="1"
                                Grid.Column="1"
                                Margin="2"
                                IsRequired="True"
                                Grid.ColumnSpan="2" />
                <Label Grid.Row="2"
                       VerticalAlignment="Center">Version Number</Label>
                <fsp:FSPTextBox Name="txtVersion"
                                Grid.Row="2"
                                Grid.Column="1"
                                Margin="2"
                                IsRequired="True" />
                <Label Grid.Row="2"
                       Grid.Column="2"
                       VerticalAlignment="Center">Messages to send</Label>
                <fsp:FSPTextBox Name="txtMessages"
                                Grid.Row="2"
                                Grid.Column="3"
                                Margin="2"
                                IsRequired="True"
                                DataType="Integer" />
                <Label Grid.Row="3"
                       VerticalAlignment="Center">Time Interval(Minutes)</Label>
                <fsp:FSPTextBox Name="txtTimeInterval"
                                Grid.Row="3"
                                Grid.Column="1"
                                Margin="2"
                                IsRequired="True"
                                DataType="Integer" />
                <Button Name="btnStart"
                        Grid.Row="3"
                        Grid.Column="3"
                        Click="btnStart_Click">_Start</Button>
                <Label Name="lblStatus"
                       Grid.Row="4"
                       Grid.ColumnSpan="4"
                       HorizontalAlignment="Center" VerticalAlignment="Center"/>
                <ProgressBar Name="prgStatus"
                             Grid.Row="5"
                             Grid.ColumnSpan="4"
                             Margin="2" />
            </Grid>
        </GroupBox>
    </Grid>
</Window>

        public MainScreen()
        {
            InitializeComponent();

            messageTimer.Tick += new EventHandler(messageTimer_Tick);

            try
            {
                using (FileStream fs = new FileStream("FSPUpgradeAccounts.xml", FileMode.Open))
                {
                    SoapFormatter bf = new SoapFormatter();
                    ArrayList serializableList = bf.Deserialize(fs) as ArrayList;
                    //_AccountList = new ObservableCollection<FSPAccount>();

                    foreach (object item in serializableList)
                    {
                        FSPAccount addAccount = item as FSPAccount;
                        addAccount.GetTerminalList();
                        AccountList.Add(addAccount);
                    }
                }
            }
            catch
            {
            }
            //var detailDefinition = new Telerik.Windows.Controls.GridViewTableDefinition();
            //detailDefinition.Relation = new Telerik.Windows.Data.PropertyRelation("Terminals");
            //grdAccounts.TableDefinition.ChildTableDefinitions.Add(detailDefinition);
            //grdAccounts.ItemsSource = AccountList;
            var detailDefinition = new Telerik.Windows.Controls.GridViewTableDefinition();
            detailDefinition.Relation = new Telerik.Windows.Data.PropertyRelation("Accounts");
            grdSystems.TableDefinition.ChildTableDefinitions.Add(detailDefinition);
            grdSystems.ItemsSource = SystemList;
            this.WindowStartupLocation = WindowStartupLocation.CenterScreen;
        }

        private void grdSystems_DataLoading(object sender, GridViewDataLoadingEventArgs e)
        {
            var dataControl = (GridViewDataControl)sender;
            if (dataControl.ParentRow != null && dataControl.ChildTableDefinitions.Count == 0)
            {
                ObservableCollection<FSPAccount> account;
                try
                {
                    account = (ObservableCollection<FSPAccount>)e.ItemsSource;
                }
                catch
                {
                    //TODO:  Look for a better way to do this?
                    account = null;
                }
                if (account != null)
                {
                    //Setup relation to the Terminals sub grid
                    var detailDefinition = new Telerik.Windows.Controls.GridViewTableDefinition();
                    detailDefinition.Relation = new Telerik.Windows.Data.PropertyRelation("Terminals");

                    //Create the columns for the Accounts "sub grid"
                    GridViewDataColumn column = new GridViewDataColumn();
                    column.UniqueName = "Upgrade";
                    GridViewCell cell = new GridViewCell();
                    
                    dataControl.Columns.Add(column);
                    column = new GridViewDataColumn();
                    column.UniqueName = "Name";
                    column.IsReadOnly = true;
                    dataControl.Columns.Add(column);
                    column = new GridViewDataColumn();
                    column.UniqueName = "TotalTerminals";
                    column.Header = "Number of Terminals";
                    column.IsReadOnly = true;
                    dataControl.Columns.Add(column);
                    column = new GridViewDataColumn();
                    column.UniqueName = "SentTerminals";
                    column.Header = "#Sent";
                    column.IsReadOnly = true;
                    dataControl.Columns.Add(column);
                    column = new GridViewDataColumn();
                    column.UniqueName = "ReceivedTerminals";
                    column.Header = "#Received";
                    column.IsReadOnly = true;
                    dataControl.Columns.Add(column);
                    
                    //Set some properties on the Accounts sub grid
                    dataControl.ChildTableDefinitions.Add(detailDefinition);
                    dataControl.AutoGenerateColumns = false;
                    dataControl.ShowGroupPanel = false;
                    dataControl.IsFilteringAllowed = false;
                    dataControl.RowLoaded += new EventHandler<RowLoadedEventArgs>(dataControl_RowLoaded);
                    accountGridList.Add(dataControl);
                }
                else
                {
                    //Create columns for the Terminals sub grid
                    GridViewDataColumn column = new GridViewDataColumn();
                    column.UniqueName = "Name";
                    column.IsReadOnly = true;
                    dataControl.Columns.Add(column);
                    column = new GridViewDataColumn();
                    column.UniqueName = "IsMessageSent";
                    column.Header = "Message Sent";
                    column.IsReadOnly = true;
                    dataControl.Columns.Add(column);
                    //dataControl.ChildTableDefinitions.Add(detailDefinition);

                    //Set some properties on the Terminals sub grid
                    dataControl.AutoGenerateColumns = false;
                    dataControl.ShowGroupPanel = false;
                    dataControl.IsFilteringAllowed = false;
                }
                //grdSystems.Rebind();
            }
        }

        void dataControl_RowLoaded(object sender, RowLoadedEventArgs e)
        {
            if (e.Row is GridViewRow)
            {
                GridViewDataControl grid = (GridViewDataControl)sender;
                CheckBox chk = (CheckBox)e.Row.Cells[0].Content;
                chk.Click += new RoutedEventHandler(UpgradeAccount_Click);
            }
        }

        void UpgradeAccount_Click(object sender, RoutedEventArgs e)
        {
            MessageBox.Show("in Click");
        }

Hi,

I want to set a transition effect ( for example SlideAndZoomTransition or MotionBlurredZoomTransition) and the SlideDirection Attribute in my RadTransitionControl dinamically using the C# in the code behind.
this is what i have actually in the xaml:

 

 

 

<telerik:RadTransitionControl x:Name="transitionRight" Grid.RowSpan="3" Grid.Column ="1" >

 

<telerik:RadTransitionControl.Transition >

 

<effects:SlideAndZoomTransition SlideDirection ="RightToLeft"/>

 

</telerik:RadTransitionControl.Transition >

 

 

</telerik:RadTransitionControl >

 

 

 

 

i want to change the effect and slide direction attr. when a click a button.
its Posible to do this?

Gretings

I get the following error at runtime
Cannot find type 'Telerik.Windows.Controls.RadTreeView'. The assembly used when compiling might be different than that used when loading and the type is missing.  Error at object 'System.Windows.Controls.Grid' in markup file

I am using the following Telerik dlls which I have added to my project references
Telerik.Windows.Controls - 2010.3.1110.35
Telerik.Windows.Controls.Data - 2010.3.1110.35
Telerik.Windows.Controls.Navigation - 2010.3.1110.35

Format Code Block(

 

 

<

 

UserControl x:Class="AOS.UI.Windows.Controls.Widget.acWidgets"

 

 

 

 

 

 

 

 

xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"

 

 

 

 

 

 

 

 

xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"

 

 

 

xmlns:VMCommanding="clr-namespace:VMCommanding"

 

 

 

 

 

 

 

 

xmlns:telerik="http://schemas.telerik.com/2008/xaml/presentation"

 

 

 

xmlns:vm="clr-namespace:AOS.UI.Windows.Controls.Widget.ViewModel"

 

 

 

 

 

 

 

 

Height="300" Width="300"

 

 

 

xmlns:Core="clr-namespace:AOS.UI.Windows.Controls.Core;assembly=AOS.UI.Windows.Controls.Core"

 

 

 

 

 

 

 

 

VMCommanding:CommandSinkBinding.CommandSink="{Binding}">

 

 

 

 

 

 

<UserControl.CommandBindings>

 

 

 

 

 

 

 

 

 

<VMCommanding:CommandSinkBinding Command="vm:WidgetViewModel.NavigateItemCommand" />

 

 

 

 

 

 

 

 

 

</UserControl.CommandBindings>

 

 

 

 

 

 

 

 

 

 

 

<UserControl.Resources>

 

 

 

 

 

 

 

 

 

<HierarchicalDataTemplate x:Key="NavigationTemplate"

 

 

 

ItemsSource="{Binding Path=WidgetList}">

 

 

 

 

 

 

 

 

 

<Grid Margin="1">

 

 

 

 

 

 

 

 

 

<Grid.ColumnDefinitions>

 

 

 

 

 

 

 

 

 

<ColumnDefinition Width="16" />

 

 

 

 

 

 

 

 

 

<ColumnDefinition Width="*" />

 

 

 

 

 

 

 

 

 

</Grid.ColumnDefinitions>

 

 

 

 

 

 

 

 

 

<Image Grid.Column="0" Source="{Binding Path=Icon_Name}"></Image>

 

 

 

 

 

 

 

 

 

<Core:CommandTextBlock Grid.Column="1" Margin="1"

 

 

 

Text="{Binding Path=Description}"

 

 

 

 

 

 

 

 

Command="vm:WidgetViewModel.NavigateItemCommand"

 

 

 

CommandParameter="{Binding}"/>

 

 

 

 

 

 

 

 

 

 

 

</Grid>

 

 

 

 

 

 

 

 

 

</HierarchicalDataTemplate>

 

 

 

 

 

 

 

 

 

</UserControl.Resources>

 

 

 

 

 

 

 

 

 

<Grid>

 

 

 

 

 

 

 

 

 

<Grid.RowDefinitions>

 

 

 

 

 

 

 

 

 

<RowDefinition Height="55" />

 

 

 

 

 

 

 

 

 

<RowDefinition Height="*" />

 

 

 

 

 

 

 

 

 

<RowDefinition Height="30" />

 

 

 

 

 

 

 

 

 

</Grid.RowDefinitions>

 

 

 

 

 

 

 

 

 

 

 

<telerik:RadTreeView Grid.Row="2" ItemsSource="{Binding WidgetList}" ItemTemplate="{StaticResource NavigationTemplate}" />

 

 

 

 

 

 

 

 

 

 

 

</Grid>

 

 

 

 

 

 

 

</

 

UserControl>

 

)

Hi,

My data hierarchy has a single root node. It is always single and always the same.
Is it possible just to hide it and show only items starting from the second level?

Testrash.

As mentioned in a previous post I have a hierarchical gridview. On the child gridview I'm using the following binding to propogate selecteditem back up to the parent:
SelectedItem="{Binding RelativeSource={RelativeSource FindAncestor, AncestorType=telerik:RadGridView, AncestorLevel=1}, Path=SelectedItem, Mode=TwoWay}"

This seems to work in almost every case, except when I click on the first row in one of the child gridviews. For some reason this doesn't seem to change the SelectedItem as I would expect.

Using a hierarchy view similar to the Custom Hierarchy demo, I want to allow the user to select only a single row of data (regardless of what tier that data is at). Further, I want to be able to bind to the currently selected row. I saw the demo on how to do this with a single-tier gridview which seems to get me halfway there - I just need to further extend that to the children as well.

Hi at all .
 
I am working with Wpf RadGridWiew and would like to save data to database with a MVVM command where i receive my modified item placed in my VIEWMODEL automatically every time that i change one row of data.

How can i do so ?

Best regards

Hi,

In your WPF GridView demo, First Look, if you expand a few rows, then choose a tab other than the first, when you scroll the GridView so that the row goes out of view and then you scroll it to reappear, the tab changes to the first one and there is a noticeable delay and jump of the scroll thumb.

I was creating a very similar arrangement and I'd like to know if there's a way to stop this behavior so that the selected tab remains constant while scrolling.

Thanks,

SP