Questions on UI for WPF Forum

2 answers

307 views

Hi everybody,

I ask for a specific cuestion about RadTileView. I would like to display the tile items in "read-only" mode (IsEnable = false no valid xD). What I mean is that I present each item without the button for maximize/minimize. For that I took some piece of code I saw in one of your examples. It works properly but a problem raises when a tile item is selected because it is not highlighted. The code appears in the following snippet:

telerik:RadTileView Name="RadTileViewUsers"

ContentTemplate="{StaticResource ContentTemplate}"

ItemTemplate="{StaticResource ItemTemplate}"

MinimizedColumnWidth="150" MinimizedRowHeight="150"

RowHeight="120"

ColumnWidth="147"

MaximizeMode="Zero"

PreviewTileDragStarted="RadTileViewUsers_PreviewTileDragStarted"

ItemContainerStyle="{StaticResource RadTileViewItemStyle}"

PreservePositionWhenMaximized="True" IsVirtualizing="True" IsSelectionEnabled="True" />

And the style (ignoring the colors):

<Style x:Key="RadTileViewItemStyle" TargetType="telerik:RadTileViewItem">

<Setter Property="telerik:RadDragAndDropManager.AllowDrag" Value="True" />

<Setter Property="HorizontalContentAlignment" Value="Stretch" />

<Setter Property="VerticalContentAlignment" Value="Stretch" />

<Setter Property="Background" Value="{StaticResource TileView_Background}" />

<Setter Property="BorderBrush" Value="{StaticResource TileView_OuterBorder}" />

<Setter Property="BorderThickness" Value="1" />

<Setter Property="Padding" Value="7" />

<Setter Property="Template">

<Setter.Value>

<ControlTemplate TargetType="telerik:RadTileViewItem">

<Grid>

<Border x:Name="outerBorder"

Margin="{TemplateBinding Padding}"

Background="{TemplateBinding Background}"

BorderBrush="{TemplateBinding BorderBrush}"

BorderThickness="{TemplateBinding BorderThickness}"

CornerRadius="{StaticResource TileView_OuterBorder_CornerRadius}">

<Border x:Name="outerContainer"

Background="Transparent"

BorderBrush="{StaticResource TileView_InneBorder}"

BorderThickness="{StaticResource TileView_InneBorder_Thickness}"

CornerRadius="{StaticResource TileView_InneBorder_CornerRadius}">

<Grid>

<Grid.RowDefinitions>

<RowDefinition Height="Auto" />

<RowDefinition Height="*" />

</Grid.RowDefinitions>

<StackPanel>

<Border Background="{StaticResource TileView_HeaderBackground}"

BorderBrush="{StaticResource TileView_HeaderBorder}"

BorderThickness="{StaticResource TileView_HeaderBorder_Thickness}"

CornerRadius="{StaticResource TileView_HeaderBorder_CornerRadius}"

Padding="10 0 7 0">

<Grid MinHeight="28">

<Border x:Name="GripBarElement" Background="Transparent">

<ContentPresenter x:Name="HeaderElement"

Margin="0,0,10,0"

HorizontalAlignment="Left"

VerticalAlignment="Center"

ContentTemplate="{TemplateBinding HeaderTemplate}" />

</Border>

<!--

<telerik:RadToggleButton x:Name="MaximizeToggleButton"

Command="tileView:TileViewCommands.ToggleTileState"

Style="{StaticResource maximizeToggleStyle}" />

-->

<!--<StackPanel HorizontalAlignment="Right" Orientation="Horizontal">

<telerik:RadButton >Refresh</telerik:RadButton>

<telerik:RadButton >Minimize</telerik:RadButton>

<telerik:RadButton >Maximize</telerik:RadButton>

</StackPanel>-->

</Grid>

</Border>

<Border x:Name="Splitter"

Height="4"

Background="{StaticResource TileView_HeaderBorder_HorizontalSplitterBackground}"

BorderThickness="0"

OpacityMask="{StaticResource TileView_HeaderBorder_HorizontalSplitterOpacityMask}" />

</StackPanel>

<Grid Grid.Row="1" Background="Transparent">

<ContentPresenter x:Name="ContentElement"

Grid.Row="1"

HorizontalAlignment="{TemplateBinding HorizontalContentAlignment}"

VerticalAlignment="{TemplateBinding VerticalContentAlignment}"

Content="{TemplateBinding Content}"

ContentTemplate="{TemplateBinding ContentTemplate}" />

</Grid>

<Rectangle x:Name="DisabledVisual"

Grid.RowSpan="2"

Fill="{StaticResource DisabledBrush}"

RadiusX="4"

RadiusY="4"

Visibility="Collapsed" />

</Grid>

</Border>

<Grid x:Name="SelectedItem"

Margin="-1"

Visibility="Collapsed">

<Border Margin="{TemplateBinding Padding}"

BorderBrush="{StaticResource ControlOuterBorder_Selected}"

BorderThickness="2"

CornerRadius="{StaticResource TileView_OuterBorder_CornerRadius}" />

</Grid>

</ControlTemplate>

</Setter.Value>

</Setter>

</Style>

Note: If I change Visibility value to Visible in Grid "SelectedItem" all the item appear as selected.

Do you have any suggestion for solving my problem?

Thanks in advance.

Eduardo.

TileView

answered on 01 Sep 2011

1 answer

129 views

Multiple Group Descriptor Problem

Hi,

I am applying two group filters in code-behind to a RadGridView. Code : -

Dim trackGroupDescriptor As New Telerik.Windows.Data.GroupDescriptor

trackGroupDescriptor.Member = "TrackName"

trackGroupDescriptor.DisplayContent = "Track"

trackGroupDescriptor.SortDirection = ComponentModel.ListSortDirection.Ascending

AllTrackGrid.GroupDescriptors.Add(trackGroupDescriptor)

Dim FeatureGroupDescriptor As New Telerik.Windows.Data.GroupDescriptor

FeatureGroupDescriptor.Member = "FeatureName"

FeatureGroupDescriptor.DisplayContent = "Feature"

FeatureGroupDescriptor.SortDirection = ComponentModel.ListSortDirection.Ascending

AllTrackGrid.GroupDescriptors.Add(FeatureGroupDescriptor)

The problem I am having is that when the grid loads only one single data row appears inside each of the inner (second) group descriptor, while the actual number of rows which should be present is more. Hoever when I remove the column headers from the 'ShowGroupPanel' while application is running and add them once more, I am able to see all the entries properly. Is there something I am missing in the code?

BTW: Tried adding the descriptor from design-side as well, but having the same issue.

Thanks
Anish George

GridView

answered on 01 Sep 2011

4 answers

113 views

Can't get ListBox drag and drop reordering to work

Hello,

I've trying to follow all the recommendations, samples, tutorials and how-tos I could find about this, and now I'm kind of lost because I can't make anything work... So I put together a sample application (http://pauloqueiroga.com/wpfapplication2.zip) to illustrate my problem.

All I need to drag and drop with a ListBox to redefine the order of the elements.

I started following the steps in this article (http://www.telerik.com/help/wpf/raddraganddrop-within-listbox.html), then I also applied the recommendations of this other one (http://www.telerik.com/help/wpf/raddraganddrop-child-window-non-telerik-popups.html) because my original app had the listbox in a popup window, and I tried a few different tweaks, like the ones recommended here (http://www.telerik.com/community/forums/wpf/draganddrop/drag-drop-mvvm.aspx) but I'm only getting lost.

Do you think you can help me?

Thank you,

PQ.

DragAndDrop

answered on 01 Sep 2011

0 answers

122 views

GetAllNodes method for TreeListView

Is there some sort of GetAllNodes method for the TreeListView, like in the TreeView.

I am trying to do a custom filter on the nodes and need to get all the TreeListView nodes back to set their visibility depending on a value in a TreeListView Column.
Thanks,

TreeListView

asked on 31 Aug 2011

1 answer

486 views

ApplicationCommands Cut/Copy

Hi,

I have a very small program with a radmenu and radrichtextbox to demonstrate the use of applicationCommands.

<Grid>

<Grid.RowDefinitions>

</Grid.RowDefinitions>

<telerik:RadMenu>

<telerik:RadMenuItem Header="Edit">

<telerik:RadMenuItem Header="Cut" Command="ApplicationCommands.Cut"/>

<telerik:RadMenuItem Header="Paste" Command="ApplicationCommands.Paste"/>

</telerik:RadMenuItem>

</telerik:RadMenu>

<telerik:RadRichTextBox Grid.Row="1"/>

</Grid>

Paste commands work very nice, but i'm not able to use Cut or copy commands when i make a selection in the richtextbox. What's is wrong ?

RichTextBox

answered on 31 Aug 2011

2 answers

104 views

[Solved] Column Must Always be sorted

I have a GridView that always needs to be alphabetically sorted by name, no matter what happens the grid (filtered, sorted by other columns, grouped, new rows added, etc)

Is there any way to do this? I'm guessing it will be in code behind, but I'm not sure where to put what.

GridView

answered on 31 Aug 2011

2 answers

198 views

GridView Argument out of range exception

Hello!

I am getting the following exception when I delete all items from a grid with the delete key and then press the insert key:

An unhandled exception of type 'System.ArgumentOutOfRangeException' occurred in Telerik.Windows.Data.dll

at Telerik.Windows.Data.QueryableCollectionView.MoveCurrentToPosition(Int32 position) in c:\TB\101\WPF_Scrum\Release_WPF\Sources\Development\Core\Data\Collections\QueryableCollectionView.Currency.cs:line 82
at Telerik.Windows.Data.QueryableCollectionView.MoveCurrentTo(Object item) in c:\TB\101\WPF_Scrum\Release_WPF\Sources\Development\Core\Data\Collections\QueryableCollectionView.Currency.cs:line 46
at Telerik.Windows.Data.QueryableCollectionView.AddNewInternal(Object newItem) in c:\TB\101\WPF_Scrum\Release_WPF\Sources\Development\Core\Data\Collections\QueryableCollectionView.Editing.cs:line 430
at Telerik.Windows.Data.QueryableCollectionView.AddNew(Object newItem) in c:\TB\101\WPF_Scrum\Release_WPF\Sources\Development\Core\Data\Collections\QueryableCollectionView.Editing.cs:line 251
at Telerik.Windows.Data.DataItemCollection.AddNew(Object newItem) in c:\TB\101\WPF_Scrum\Release_WPF\Sources\Development\Core\Data\Collections\DataItemCollection.Editing.cs:line 33
at Telerik.Windows.Controls.GridView.GridViewDataControl.CreateNewItem() in c:\TB\101\WPF_Scrum\Release_WPF\Sources\Development\Controls\GridView\GridView\GridView\GridViewDataControl.cs:line 5421
at Telerik.Windows.Controls.GridView.GridViewDataControl.ShowInsertRowIfNeeded() in c:\TB\101\WPF_Scrum\Release_WPF\Sources\Development\Controls\GridView\GridView\GridView\GridViewDataControl.cs:line 5368
at Telerik.Windows.Controls.GridView.GridViewDataControl.BeginInsert() in c:\TB\101\WPF_Scrum\Release_WPF\Sources\Development\Controls\GridView\GridView\GridView\GridViewDataControl.cs:line 4997
at Telerik.Windows.Controls.GridView.GridViewDataControl.OnBeginInsertCommand(Object sender, ExecutedRoutedEventArgs e) in c:\TB\101\WPF_Scrum\Release_WPF\Sources\Development\Controls\GridView\GridView\GridView\GridViewDataControl.Commands.cs:line 342
at System.Windows.Input.CommandBinding.OnExecuted(Object sender, ExecutedRoutedEventArgs e)
at System.Windows.Input.CommandManager.ExecuteCommandBinding(Object sender, ExecutedRoutedEventArgs e, CommandBinding commandBinding)
at System.Windows.Input.CommandManager.FindCommandBinding(CommandBindingCollection commandBindings, Object sender, RoutedEventArgs e, ICommand command, Boolean execute)
at System.Windows.Input.CommandManager.FindCommandBinding(Object sender, RoutedEventArgs e, ICommand command, Boolean execute)
at System.Windows.Input.CommandManager.OnExecuted(Object sender, ExecutedRoutedEventArgs e)
at System.Windows.UIElement.OnExecutedThunk(Object sender, ExecutedRoutedEventArgs e)
at System.Windows.Input.ExecutedRoutedEventArgs.InvokeEventHandler(Delegate genericHandler, Object target)
at System.Windows.RoutedEventArgs.InvokeHandler(Delegate handler, Object target)
at System.Windows.RoutedEventHandlerInfo.InvokeHandler(Object target, RoutedEventArgs routedEventArgs)
at System.Windows.EventRoute.InvokeHandlersImpl(Object source, RoutedEventArgs args, Boolean reRaised)
at System.Windows.UIElement.RaiseEventImpl(DependencyObject sender, RoutedEventArgs args)
at System.Windows.UIElement.RaiseEvent(RoutedEventArgs args, Boolean trusted)
at System.Windows.Input.RoutedCommand.ExecuteImpl(Object parameter, IInputElement target, Boolean userInitiated)
at System.Windows.Input.RoutedCommand.Execute(Object parameter, IInputElement target)
at Telerik.Windows.Controls.GridView.GridViewDataControl.ExecutePendingCommand() in c:\TB\101\WPF_Scrum\Release_WPF\Sources\Development\Controls\GridView\GridView\GridView\GridViewDataControl.Commands.cs:line 65
at Telerik.Windows.Controls.GridView.GridViewDataControl.OnKeyDown(KeyEventArgs e) in c:\TB\101\WPF_Scrum\Release_WPF\Sources\Development\Controls\GridView\GridView\GridView\GridViewDataControl.cs:line 3926
at System.Windows.UIElement.OnKeyDownThunk(Object sender, KeyEventArgs e)
at System.Windows.Input.KeyEventArgs.InvokeEventHandler(Delegate genericHandler, Object genericTarget)
at System.Windows.RoutedEventArgs.InvokeHandler(Delegate handler, Object target)
at System.Windows.RoutedEventHandlerInfo.InvokeHandler(Object target, RoutedEventArgs routedEventArgs)
at System.Windows.EventRoute.InvokeHandlersImpl(Object source, RoutedEventArgs args, Boolean reRaised)
at System.Windows.UIElement.RaiseEventImpl(DependencyObject sender, RoutedEventArgs args)
at System.Windows.UIElement.RaiseEvent(RoutedEventArgs args, Boolean trusted)
at System.Windows.Input.InputManager.ProcessStagingArea()
at System.Windows.Input.InputManager.ProcessInput(InputEventArgs input)
at System.Windows.Input.InputProviderSite.ReportInput(InputReport inputReport)
at System.Windows.Interop.HwndKeyboardInputProvider.ReportInput(IntPtr hwnd, InputMode mode, Int32 timestamp, RawKeyboardActions actions, Int32 scanCode, Boolean isExtendedKey, Boolean isSystemKey, Int32 virtualKey)
at System.Windows.Interop.HwndKeyboardInputProvider.ProcessKeyAction(MSG& msg, Boolean& handled)
at System.Windows.Interop.HwndSource.CriticalTranslateAccelerator(MSG& msg, ModifierKeys modifiers)
at System.Windows.Interop.HwndSource.OnPreprocessMessage(Object param)
at System.Windows.Threading.ExceptionWrapper.InternalRealCall(Delegate callback, Object args, Boolean isSingleParameter)
at System.Windows.Threading.ExceptionWrapper.TryCatchWhen(Object source, Delegate callback, Object args, Boolean isSingleParameter, Delegate catchHandler)

Just to let you know!

GridView

answered on 31 Aug 2011

1 answer

232 views

How make the PanelBar not selectable?

Hi.
In evaluating the Panebar i want to make the panel bar not selectable, i.e. when the user click on the group or on the item only is pusched but not remain selected.

How can do i this?
thanks.

PanelBar

answered on 31 Aug 2011

1 answer

207 views

WPF Chart live data blinking

Hello,

I am having a little issue with the Live Data Chart Example. I'm using the same source code as the "Live Data WPF example". Except changed my queue object with my own.

Every time my timer ticks. The Chart redraws itself completely and for a few milliseconds the chart is blank.

I could provide more information but my code is exactly the example. Except I am loading the UserControl in a Stack Panel.

Has anyone come across this?

Luc

Chart

answered on 31 Aug 2011

6 answers

158 views

radscheduleview for project planning

Hello,
I need to create a project planning tool which allows to manage project lenght (in days) and responsibility with drag and drop functionality;
I thought that the timeline view may be what I'm looking for but there are always times (hour, minute, second) in between which are not interesting for me.
Substantially I would need the timeline view with 4 employees as rows and the days as columns; the user should then be able to create a new project which can be 1 to n days and drag and drop it between the employees.

Could You please give me some advise or small sample project on how I could do this?

Regards

ScheduleView

answered on 31 Aug 2011