I am using a RadGridView to display some data in a hierarchy. I am using MvvM so I am building by grid in XAML and have very little code behind.

I have a very simple hierarchy where I have a list of objects (Agents) and each agent can have a list of sub agents and a list of clients. These lists are two separate properties of my agent object, i.e. Agent.Agents and Agent.ClientAccounts. An agent can have a list of clients and a list of sub agents so when the user expands an agent row they will see two child grids at the same level in the hierarchy.

I am using the grid_RowLoaded event to only allow expanding when I have either a list of SubAgents or a list of Clients.

My issue is that when one of the lists of either SubAgents or Clients doesn’t have any records I would like to hide the grid (or not even create it in the first place)

I have tried to set the visibility of the SubAgents and Clients  grids by using a converter so the grids are hidden when the lists have a count of 0 but that didn’t work

Any ideas would be much appreciated

Here is the structure of my grid

<telerik:RadGridView 
        x:Name="grid"
        BorderThickness="0"
        Background="Transparent"
        ShowGroupPanel="False" 
        IsReadOnly="True"
        DataContext="{Binding}" 
        ItemsSource="{Binding Path=AgentList}" 
        RowIndicatorVisibility="Collapsed" 
        GridLinesVisibility="None" 
        telerik:Theming.Theme="{DynamicResource TelerikThemeName}" 
        IsSynchronizedWithCurrentItem="True"
        ShowColumnHeaders="True" 
        AutoGenerateColumns="False" 
        acb:CommandBehavior.Event="MouseDoubleClick"  
        acb:CommandBehavior.Command="{Binding OpenAgentDetailsCommand}" 
        acb:CommandBehavior.CommandParameter="{Binding RelativeSource={RelativeSource Self}, Path=SelectedItem.CustomerId}" RowLoaded="grid_RowLoaded">
 
        <telerik:RadGridView.ChildTableDefinitions>
            <telerik:GridViewTableDefinition/>
        </telerik:RadGridView.ChildTableDefinitions>
 
        <telerik:RadGridView.Columns>
            <telerik:GridViewDataColumn DataMemberBinding="{Binding AccountId}" Header="Account Id" Width="Auto" />
            <telerik:GridViewDataColumn DataMemberBinding="{Binding CustomerId}" Header="CustomerId" Width="Auto" />
            <telerik:GridViewDataColumn DataMemberBinding="{Binding FirstName}" Header="FirstName" Width="Auto"/>
            <telerik:GridViewDataColumn DataMemberBinding="{Binding LastName}" Header="LastName" Width="Auto"/>
            <telerik:GridViewDataColumn DataMemberBinding="{Binding Volume}" Header="Volume" Width="Auto" DataFormatString="{}{0:N0}"/>
        </telerik:RadGridView.Columns>
        
        <telerik:RadGridView.HierarchyChildTemplate>
            <DataTemplate>
                <StackPanel>
 
                    <!--sub agents-->
                    <telerik:RadGridView ItemsSource="{Binding Path=Agents}" AutoGenerateColumns="False" ShowGroupPanel="False" 
                                         Visibility="{Binding Path=Agents.Count, Converter={StaticResource countToVisibleConverter}}">
                        <telerik:RadGridView.Columns>
                            <telerik:GridViewDataColumn DataMemberBinding="{Binding AccountId}" Header="Account Id" Width="Auto" />
                            <telerik:GridViewDataColumn DataMemberBinding="{Binding CustomerId}" Header="CustomerId" Width="Auto" />
                            <telerik:GridViewDataColumn DataMemberBinding="{Binding FirstName}" Header="FirstName" Width="Auto"/>
                            <telerik:GridViewDataColumn DataMemberBinding="{Binding LastName}" Header="LastName" Width="Auto"/>
                            <telerik:GridViewDataColumn DataMemberBinding="{Binding Volume}" Header="Volume" Width="Auto" DataFormatString="{}{0:N0}"/>
                        </telerik:RadGridView.Columns>
 
                        <telerik:RadGridView.ChildTableDefinitions>
                            <telerik:GridViewTableDefinition />
                        </telerik:RadGridView.ChildTableDefinitions>
 
                        <!--sub agents : clients-->
                        <telerik:RadGridView.HierarchyChildTemplate>
                            <DataTemplate>
                                <telerik:RadGridView ItemsSource="{Binding Path=ClientAccounts}" AutoGenerateColumns="False" ShowGroupPanel="False" 
                                                     Visibility="{Binding Path=ClientAccounts.Count, Converter={StaticResource countToVisibleConverter}}">
                                    <telerik:RadGridView.Columns>
                                        <telerik:GridViewDataColumn DataMemberBinding="{Binding AccountId}" Header="Account Id" Width="Auto" />
                                        <telerik:GridViewDataColumn DataMemberBinding="{Binding FirstName}" Header="FirstName" Width="Auto"/>
                                        <telerik:GridViewDataColumn DataMemberBinding="{Binding LastName}" Header="LastName" Width="Auto"/>
                                        <telerik:GridViewDataColumn DataMemberBinding="{Binding Volume}" Header="Volume" Width="Auto" DataFormatString="{}{0:N0}"/>
                                    </telerik:RadGridView.Columns>
                                </telerik:RadGridView>
                            </DataTemplate>
                        </telerik:RadGridView.HierarchyChildTemplate>
 
                    </telerik:RadGridView>
 
                    <!--clients-->
                    <telerik:RadGridView ItemsSource="{Binding Path=ClientAccounts}" AutoGenerateColumns="False" ShowGroupPanel="False" 
                                         Visibility="{Binding Path=ClientAccounts.Count, Converter={StaticResource countToVisibleConverter}}">
                        <telerik:RadGridView.Columns>
                            <telerik:GridViewDataColumn DataMemberBinding="{Binding AccountId}" Header="Account Id" Width="Auto" />
                            <telerik:GridViewDataColumn DataMemberBinding="{Binding FirstName}" Header="FirstName" Width="Auto"/>
                            <telerik:GridViewDataColumn DataMemberBinding="{Binding LastName}" Header="LastName" Width="Auto"/>
                            <telerik:GridViewDataColumn DataMemberBinding="{Binding Volume}" Header="Volume" Width="Auto" DataFormatString="{}{0:N0}"/>
                        </telerik:RadGridView.Columns>
                    </telerik:RadGridView>
 
                </StackPanel>
                                        
            </DataTemplate>
        </telerik:RadGridView.HierarchyChildTemplate>
 
    </telerik:RadGridView>

I have a grid view that uses a datatemple for each row to edit data.  when I add a new row I want the cursor to be focused in the textbox in the datatemplate on the row details.  Nothing seems to work.  I have to tab to get to the textbox.  

Does Telerik have a control for WPF that's similar to the RadTitleBar for Winforms? I'd like to be able to have a theme-aware Title Bar for WPF.

Is it possible to make the GridView 100% 508 compliant? Does anyone have a specific solution?

The GridView I have is one that:

1) Data sources change. Same GridView is used to display many different collections of data depending on menu selection.

2) Selectable rows and cells. Double-click and a dialog shows to change values in the selected row.

3) Has sortable columns and the headers need to be readable by screen readers.

That's about all there is to it. I use JAWS to test the accessibility. I'm into UIAutomation. Any help is greatly appreciated. I don't want to have to replace the GridView with the standard WPF Data Grid.

Thank you.

Hi

I'm interested how can I find (and access in code) customized fields in a RadDataForm (edit) template.
When I edit a record Focus is not set on first field.
Can anyone give me a hint?

Thanks!

Hi,

Continuing the same example as was in the previous query.

<telerik:RadTreeView HorizontalAlignment="Left"
                             x:Name="uxOrgTree"
                             Width="Auto"
                             Height="Auto"
                             d:LayoutOverrides="Height"  
                             VerticalAlignment="Top"
                             Margin="0,0,0,0"
                             SelectionMode="Single"
                             IsEditable="True"
                             ItemsSource="{Binding RootNodes}" >
            <telerik:RadTreeView.Resources>
                <HierarchicalDataTemplate DataType="{x:Type Entities:Node}" ItemsSource="{Binding Children}" >
                    <StackPanel Orientation="Horizontal">
                        <TextBlock Text="{Binding Path= Name}"/>
                    </StackPanel>
                </HierarchicalDataTemplate>
            </telerik:RadTreeView.Resources>
      <telerik:RadTreeView.ItemContainerStyle>
                <Style TargetType="{x:Type telerik:RadTreeViewItem}">
                    <EventSetter Event="Edited" Handler="RadTreeViewItem_Edited" />
                 </Style>
            </telerik:RadTreeView.ItemContainerStyle>
        </telerik:RadTreeView>

I am trying to do something like styled as bold, in the code behind:

 private void ContextMenu_ContextMenuOpening(object sender, ContextMenuEventArgs e)
        {
               RadTreeViewItem currentItem = sender as RadTreeViewItem;
                if (currentItem != null)
                {
                    currentItem.ContextMenu.Tag = currentItem;
                }
      }

  private void MenuItem_Click(object sender, System.Windows.RoutedEventArgs e)
        {
            MenuItem menu = sender as MenuItem;
            if (menu != null)
            {
                  ContextMenu contextMenu = this.FindResource("uxContextMenu") as ContextMenu;

                    Debug.Assert(contextMenu != null, "contextMenu == null", "null contextMenu");
                    RadTreeViewItem currentItem = contextMenu.Tag as RadTreeViewItem;
                   
                   //looking for 5th child of the currentItem, not sure how to get children if a treeview item.
                    currentItem.Children[5] as RadTreeViewItem;
                       
             }
        }

Thanks
Sonal

Is there any easy way to use style from filtering list (e.g in grid view filter - first picture) as default style for all scroll viewers (second picture) 

Thanks for help.

I am using the GridView to display up to 1,000 rows of data.  I am required to provide an elapsed time column.  I have found a similar thread here:http://www.telerik.com/community/forums/silverlight/gridview/updating-column-periodically-with-current-timespan-now-created.aspx .
I had the same thought of utilizing a Dispatch Timer in my ViewModel and updating each item in the data bound ItemSource collection.  However; I must display this elapsed time by second versus minute.  Updating each Model each second cannot be the best way to handle this.  I do not see an event I can respond to which would provide me a collection of those rows being displayed.  I assume that internally the GridView has such a collection for performance reasons.  Is this collection exposed or is there some other mechanism I should use?

Thanks

Hi there, we're currently evaluating some controls in the RadControls library.

We can't get the "Drag and Drop Between ListBoxes - Basic" example http://www.telerik.com/help/wpf/raddraganddrop-between-listboxes.html working.  We've precisely followed the example, yet there is no effect when attempting to drag items from one listbox to the other.

Here's the C#


Here's the XAML:

Hi,
I an trying to create a PieChart like:


The problem is where in the code I should add a manual series mapping in order to bind labels to a collection in VM.