Questions on UI for WPF Forum

2 answers

86 views

Hello

Could you please provide me with any working example of firing gridview event from ribbonview.
I'd like to ribbon option click to grid deleting event. Any help will be greatly appreciated.

regards

GridView

answered on 20 Jun 2012

4 answers

577 views

Global Busy Indicator?

Hello,

From my reading of this line "

When you are using the RadBusyIndicator control you always have to set its Content property. This will be the content on top of which you want to visualize the RadBusyIndicator control." in this article http://www.telerik.com/help/silverlight/radbusyindicator-getting-started.html I mocked up this quick demo to see if I could use it. WPF app loads a window. In the window is a frame which loads a page. On that page is a button that when clicked puts the thread to sleep for 3 seconds. In that button I get a handle to the parent window and set the IsBusy to true....but it never shows. I've tried numerous variations but I can't get it to work in my project or my mockup??

MainWindow:

<Window x:Class="LoadingTest.MainWindow"

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"

Title="MainWindow" Height="350" Width="525">

<Grid>

<telerik:RadBusyIndicator x:Name="Thnk" IsBusy="false" telerik:StyleManager.Theme="Expression_Dark" >

<Frame Name="frm_BigBro" Grid.Row="0" Source="Page1.xaml" SnapsToDevicePixels="True" />

</telerik:RadBusyIndicator>

</Grid>

</Window>

Main Page cs

public void StartThinking()

{

Thnk.IsBusy = true;

}

public void StopThinking()

{

Thnk.IsBusy = false;

}

Page1 XAML

<Grid>

<TextBlock Text="My Page" />

<Button x:Name="Button1" Click="Button1_Click" Width="80" Height="20" />

</Grid>

Page1 cs

private void Button1_Click(object sender, RoutedEventArgs e)

{

MainWindow wndow = new MainWindow();

wndow = Window.GetWindow(sender as DependencyObject) as MainWindow;

wndow.StartThinking();

System.Threading.Thread.Sleep(3000);

wndow.StopThinking();

}

I'm sure it works so I must be doing something wrong?

TIA
JB

BusyIndicator

answered on 20 Jun 2012

1 answer

137 views

Operator Value from RadDataFilter

Hi,

How do I get the Or or AND operators, them from the RadFilterControl

I have a RadDataFilter that allows us to create Filter conditions.

I want to access the Filter expression created,

The FieldDescriptors gives me a list like

1. FirstName IsEqualTo Brian
2. LastName IsEqualTo Jackson
3. ... etc

how do I get the operators between the descriptors i.e
something like -- FirstName isEqualToBrian "Or" LastName IsEqualTo Jackson

DataFilter

answered on 20 Jun 2012

0 answers

137 views

nested/inner Docking crash in 2011 Q1

Hi we are using Telerik controls 2011 Q1.

We have an application that has a Docking control, and inside another control that has Docking control.

The parameter AllowUnsafeMode = "true" on both.

When we drag the inner Docking we got next exception:

Exception.Message:

"The specified Visual is not an ancestor of this Visual."

Exception.CallStack;

at System.Windows.Media.Visual.TrySimpleTransformToAncestor(Visual ancestor, Boolean inverse, GeneralTransform& generalTransform, Matrix& simpleTransform)

at System.Windows.Media.Visual.InternalTransformToAncestor(Visual ancestor, Boolean inverse)

at System.Windows.Media.Visual.TransformToAncestor(Visual ancestor)

at Telerik.Windows.Controls.RadDocking.GetElementPositionRelatedToPopup(FrameworkElement element) in c:\Builds\WPF_Scrum\Release_WPF\Sources\Development\Controls\Docking\Docking\RadDocking.cs:line 1868

at Telerik.Windows.Controls.RadDocking.MoveCompassToElement(FrameworkElement element) in c:\Builds\WPF_Scrum\Release_WPF\Sources\Development\Controls\Docking\Docking\RadDocking.cs:line 1883

at Telerik.Windows.Controls.RadDocking.ShowHideCompass(Point position, RadPaneGroup group, Boolean isCompassOverDH) in c:\Builds\WPF_Scrum\Release_WPF\Sources\Development\Controls\Docking\Docking\RadDocking.cs:line 1823

at Telerik.Windows.Controls.RadDocking.MoveDraggedElement(Point position, ToolWindow draggedWindow) in c:\Builds\WPF_Scrum\Release_WPF\Sources\Development\Controls\Docking\Docking\RadDocking.cs:line 1782

at Telerik.Windows.Controls.RadDocking.OnDragDelta(Point globalPosition, Object draggedElement) in c:\Builds\WPF_Scrum\Release_WPF\Sources\Development\Controls\Docking\Docking\RadDocking.cs:line 862

at Telerik.Windows.Controls.RadDocking.OnDragDelta(Object sender, DragInfoEventArgs e) in c:\Builds\WPF_Scrum\Release_WPF\Sources\Development\Controls\Docking\Docking\RadDocking.cs:line 1309

at Telerik.Windows.Controls.Docking.DragInfoEventArgs.InvokeEventHandler(Delegate genericHandler, Object genericTarget) in c:\Builds\WPF_Scrum\Release_WPF\Sources\Development\Controls\Docking\Docking\DragDrop\DragInfoEventArgs.cs:line 48

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 e)

at Telerik.Windows.Controls.Docking.FakePopup.<.ctor>b__0(Object s, RoutedEventArgs e) in c:\Builds\WPF_Scrum\Release_WPF\Sources\Development\Controls\Docking\Docking\Popup\FakePopup.cs:line 26

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 e)

at Telerik.Windows.Controls.Docking.DragDropHelper.DragDelta(UIElement target, UIElement dragRoot, MouseEventArgs e) in c:\Builds\WPF_Scrum\Release_WPF\Sources\Development\Controls\Docking\Docking\DragDrop\DragDropHelper.cs:line 55

at Telerik.Windows.Controls.Docking.DragDropHelper.DragDelta(UIElement target, MouseEventArgs e) in c:\Builds\WPF_Scrum\Release_WPF\Sources\Development\Controls\Docking\Docking\DragDrop\DragDropHelper.cs:line 50

at Telerik.Windows.Controls.Docking.ToolWindow.OnToolWindowMouseMove(Object sender, MouseEventArgs e) in c:\Builds\WPF_Scrum\Release_WPF\Sources\Development\Controls\Docking\Docking\ToolWindow.cs:line 712

at System.Windows.Input.MouseEventArgs.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.HwndMouseInputProvider.ReportInput(IntPtr hwnd, InputMode mode, Int32 timestamp, RawMouseActions actions, Int32 x, Int32 y, Int32 wheel)

at System.Windows.Interop.HwndMouseInputProvider.FilterMessage(IntPtr hwnd, Int32 msg, IntPtr wParam, IntPtr lParam, Boolean& handled)

at System.Windows.Interop.HwndSource.InputFilterMessage(IntPtr hwnd, Int32 msg, IntPtr wParam, IntPtr lParam, Boolean& handled)

at MS.Win32.HwndWrapper.WndProc(IntPtr hwnd, Int32 msg, IntPtr wParam, IntPtr lParam, Boolean& handled)

at MS.Win32.HwndSubclass.DispatcherCallbackOperation(Object o)

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)

at System.Windows.Threading.Dispatcher.WrappedInvoke(Delegate callback, Object args, Boolean isSingleParameter, Delegate catchHandler)

at System.Windows.Threading.Dispatcher.InvokeImpl(DispatcherPriority priority, TimeSpan timeout, Delegate method, Object args, Boolean isSingleParameter)

at System.Windows.Threading.Dispatcher.Invoke(DispatcherPriority priority, Delegate method, Object arg)

at MS.Win32.HwndSubclass.SubclassWndProc(IntPtr hwnd, Int32 msg, IntPtr wParam, IntPtr lParam)

at System.Windows.Forms.UnsafeNativeMethods.DispatchMessageW(MSG& msg)

at System.Windows.Forms.Application.ComponentManager.System.Windows.Forms.UnsafeNativeMethods.IMsoComponentManager.FPushMessageLoop(Int32 dwComponentID, Int32 reason, Int32 pvLoopData)

at System.Windows.Forms.Application.ThreadContext.RunMessageLoopInner(Int32 reason, ApplicationContext context)

at System.Windows.Forms.Application.ThreadContext.RunMessageLoop(Int32 reason, ApplicationContext context)

at System.Windows.Forms.Application.Run(Form mainForm)

at xxxxxxxxx.Main(String[] args) in C:\xxxxxxxx\SplashForm.cs:line 155

There is fix for that?

Docking

asked on 20 Jun 2012

4 answers

133 views

Context menu on Rad Panes

I have a context menu as shared resource.
<Window>
<Window.Resources>


<Navigation:RadContextMenu x:Key="ViewMenu" x:Shared="true"
Model:ContextMenuExtensions.NotifyOnMenuOpen="True"
ItemClick="MenuViewItemClick">
<Navigation:RadMenuItem/>
</Navigation:RadContextMenu >
<Window.Resources>
<Grid>
<Dock:RadPane>
<Grid Navigation:RadContextMenu.ContextMenu="{StaticResource ViewMenu}">
<Border>
<RadGridView/>
</Border>
</Grid>
</Dock:RadPane>
<Dock:RadPane>
<Grid Navigation:RadContextMenu.ContextMenu="{StaticResource ViewMenu}">
</Grid>
</Dock:RadPane>

And a floating radpane
The RadGridView has RowDetailsTemplate defined.

Depending on where the mouse is click the contextmenu is shown, and I use the contextmenu.GetClickedElement method.

If I rightclick on the radgridview without opening the floating pane the GetClickedElement is correct. But if I open the floating pane and then rightclick on the radgridview the GetClickedItem is not returned corectly. The Floating Pane is returned even though I clicked on radgridview details.
What could be a possible issue with this?

ContextMenu

answered on 20 Jun 2012

5 answers

224 views

RadTickBar resize behavior

Version: Q1 2012 .NET4

Having updated from the Q3 2010, we noticed a problem in the resize behavior of the RadTickBar, when the RadSlider is provided with a TickDataTemplate which renders textual information for each tick. While resizing the slider to a smaller size, there seems to be a point of the process after which the RadTickBar cannot keep up. From that point on, the outer ticks of the slider start to get clipped out, even though the distance between the ticks appears to be enough to fit them all. On top of that, the position of each tick at that point
miss-matches the corresponding position of the thumb of the slider (thus proving that the slider it self has resized successfully, while the tick-bar has not).

We have tried to set a MinWidth for the RadTickBar through the TickBarStyle property, however that causes an InvalidOperationException. Perhaps that is something you could check as well.

The following is the sample code which reproduces this behavior. To do so, just execute it and try to gradually resize the window to a smaller size. Plus, as far as the second issue (regarding the RadTickBar MinWidth) is concerned, try uncommenting the corresponding XAML code, and executing the project.

Yours faithfully,
Nikos Nakas
Entersoft SA Development Department

Window XAML markup:

<Window x:Class="MainWindow"

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

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

xmlns:local="clr-namespace:WpfRadSliderTest"

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

Title="MainWindow" Height="350" Width="525">

<Window.Resources>

<local:IntegerToMonthConverter x:Key="intToMonthConv" />

</Window.Resources>

<Grid>

<telerik:RadSlider Margin="25" VerticalAlignment="Center"

telerik:StyleManager.Theme="Windows7"

Minimum="0" Maximum="5" TickFrequency="1"

IsMouseWheelEnabled="True" IsSnapToTickEnabled="True" IsMoveToPointEnabled="True"

TickPlacement="BottomRight">

<telerik:RadSlider.TickTemplate>

<DataTemplate>

<Grid Background="Purple"

MinHeight="{Binding Path=ActualHeight, Mode=OneWay, RelativeSource={RelativeSource AncestorType=telerik:RadTickBar}}">

<StackPanel>

<Ellipse Width="5" Height="5" Fill="Black" />

<Label Content="{Binding Mode=OneWay, Converter={StaticResource intToMonthConv}}" Foreground="Yellow" />

</StackPanel>

</Grid>

</DataTemplate>

</telerik:RadSlider.TickTemplate>

<!--<telerik:RadSlider.TickBarStyle>

<Style TargetType="telerik:RadTickBar">

<Setter Property="MinWidth" Value="50" />

</Style>

</telerik:RadSlider.TickBarStyle>-->

</telerik:RadSlider>

</Grid>

</Window>

Value Converter:

Public Class IntegerToMonthConverter

Implements IValueConverter

Private Shared ReadOnly Months As String() = {"January", "February", "March", "April", "May", "June"}

Public Function Convert(value As Object, targetType As System.Type, parameter As Object, culture As System.Globalization.CultureInfo) As Object Implements System.Windows.Data.IValueConverter.Convert

Dim index = CInt(value)

If index < 0 OrElse index >= Months.Length Then Return String.Empty

Return Months(index)

End Function

Public Function ConvertBack(value As Object, targetType As System.Type, parameter As Object, culture As System.Globalization.CultureInfo) As Object Implements System.Windows.Data.IValueConverter.ConvertBack

Throw New NotSupportedException

End Function

End Class

Slider

answered on 20 Jun 2012

1 answer

155 views

Keyboard navigation in RadGridView

Currently we are implementing keyboard navigation in the application. Can you please tell me how to set focus on following items in RadGridView using keyboard.
1. Filtering dropdown shown in coumn header of RadGridView.
2. GridViewToggleButton used to expand/collapse child grids in case Hierarchical Grids..

GridView

answered on 20 Jun 2012

1 answer

60 views

Create floating radpanes on individual thread

Hi,

How can I create multiple floating radpanes which are running on multiple threads?

Docking

answered on 20 Jun 2012

1 answer

120 views

compare two GridView

Hi,

is there any easy way to compare to RadGridViews? Ihave two GridViews with the same ViewModel. GridViewA is the source
and GridViewB ist the target.
On Application Load i bind first the RadGrievB with Data from a Database. Afterwards i want to bind GridViewA from a second source.
But All the Items which are in GridViewA may not be in GridViewA. I hope this is clear!?

Is there a easy way to handle it? Or must i select each item from database to check if it is in the GridViewB?

GridViewA:
Source = txt-file
ViewModel=Pakete

GRidViewB:
Source=Database (original source txt-file)
Viewmodel=Pakete

Thanks a lot
Regards
Rene

GridView

answered on 20 Jun 2012

2 answers

110 views

RadControls Not working

Hi,

I am evaluating the Rad controls for a new project.

specifically Radfilter and GridView.

I have added both to my project but they are not visible in designer or on the wpf form when i run the app.

Am I missing something

See xaml below

<Window x:Class="TelerikRadFilter.MainWindow"

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"

Title="MainWindow" Height="auto" Width="auto">

<Grid>

<Grid.RowDefinitions>

<RowDefinition />

</Grid.RowDefinitions>

<StackPanel>

<Button Content="YTest" HorizontalAlignment="Center" Width="100"/>

<telerik:RadDataFilter Name="radDataFilter" Background="Aqua"