Questions on UI for WPF Forum

3 answers

54 views

Window with RadDocking control behaves in a non-standard way in relation to the Windows task bar

I noticed that a window with a RadDocking control behaves in a strange fashion in relation to the Windows task bar:

Whereas every other window of whatever application when dragged towards the task bar is behind it, a window with the RadDocking control - if it is activated - is above the task bar. If other windows are behind the active window with a RadDockingControl, they get placed above the task bar as well, but only in this case.

How do I fix this behavior so that a window with a RadDocking control is always behind the Windows task bar like every other standard window?

I use Windows 7.

Docking

answered on 04 Feb 2011

3 answers

372 views

RadGridView double click event

Hi,
I need to capture which one the user clicked on mousedoubleclick event of radgridview..

I need to differentiate if the user clicked on the cell or on the border of the grid.. How can i achive this?

thanks

GridView

answered on 04 Feb 2011

1 answer

272 views

Pane with PRISM region

Hi,

i have the following scenario (RadDocking with three panes and on the third pane is a PRISM region) :

<Grid HorizontalAlignment="Stretch" VerticalAlignment="Stretch">

<Telerik:RadDocking Name="Docking" UI:PaRadDockingExtensions.IsEnabled="True"

ItemContainerStyle="{DynamicResource PaNewRadDockPaneStyle}" AllowUnsafeMode="True" >

<Telerik:RadDocking.DocumentHost >

<Telerik:RadSplitContainer Orientation="Vertical">

<Telerik:RadPaneGroup Name="MapGroup">

<Telerik:RadPane Header="Pane1" Telerik:RadDocking.SerializationTag="C1">

<AlapModul:CikkInputView DataContext="{Binding}" />

</Telerik:RadPane>

<Telerik:RadPane Header="Pane2" Telerik:RadDocking.SerializationTag="C2" >

<AlapModul:CikkKiegeszitoInputView DataContext="{Binding}" />

</Telerik:RadPane>

<Telerik:RadPane Header="Pane3" Telerik:RadDocking.SerializationTag="C3" >

<ContentControl cal:RegionManager.RegionName="{Binding MERegionName}" DataContext="{Binding}"/>

</Telerik:RadPane>

</Telerik:RadPaneGroup>

</Telerik:RadSplitContainer>

</Telerik:RadDocking.DocumentHost>

</Telerik:RadDocking>

At runtime, when I begin drag the pane with the PRISM region, I got the following error:

An exception occurred while creating a region with name 'cc4ebccf-36cf-410c-b390-318f6e905d1b'. The exception was: System.InvalidOperationException: ContentControl's Content property is not empty.
    This control is being associated with a region, but the control is already bound to something else.
    If you did not explicitly set the control's Content property,
    this exception may be caused by a change in the value of the inherited RegionManager attached property.
   at Microsoft.Practices.Composite.Presentation.Regions.ContentControlRegionAdapter.Adapt(IRegion region, ContentControl regionTarget) in E:\Projects\PrismLib\Source\Main\CAB\Composite.Presentation\Regions\ContentControlRegionAdapter.cs:line 58
   at Microsoft.Practices.Composite.Presentation.Regions.RegionAdapterBase`1.Initialize(T regionTarget, String regionName) in E:\Projects\PrismLib\Source\Main\CAB\Composite.Presentation\Regions\RegionAdapterBase.cs:line 65
   at Microsoft.Practices.Composite.Presentation.Regions.RegionAdapterBase`1.Microsoft.Practices.Composite.Regions.IRegionAdapter.Initialize(Object regionTarget, String regionName) in E:\Projects\PrismLib\Source\Main\CAB\Composite.Presentation\Regions\RegionAdapterBase.cs:line 82
   at Microsoft.Practices.Composite.Presentation.Regions.Behaviors.DelayedRegionCreationBehavior.CreateRegion(DependencyObject targetElement, String regionName) in E:\Projects\PrismLib\Source\Main\CAB\Composite.Presentation\Regions\Behaviors\DelayedRegionCreationBehavior.cs:line 137.

Any idea what I do wrong?

Thanks,

Balazs

Docking

answered on 04 Feb 2011

2 answers

192 views

check if any data changed

Hi,

Is there an easy or effecient way to check if the user changes any data on the grid? comparing the old row with the new row..

thanks

GridView

answered on 04 Feb 2011

1 answer

141 views

binding in color picker?

Hello Telerik Team,
I have one clarification about rad colorpicker.we are using rad controls in our latest project.

My doupt is how to binding radcolor picker?
what is color picker input value?

our aim is stored the values of color picker input .Then display values in datagrid with corresponding color.

give me more suggestion.

ColorPicker

answered on 04 Feb 2011

1 answer

156 views

ShowDialog synchronously

how I can display a modal window in XBAP synchronously so that the process does not continue until you close the window?

Thanks

Window

answered on 04 Feb 2011

1 answer

302 views

Radcombobox Alignment

Hello,
I have some problems using Radcombobox.
The list with the data is Alignment to right.
if I choose an item from the list is longer than the width of Radcombobox
the text in Radcombobox has been cut to the right and no to the left.
i have attaced sample code here.
Thanks

<

Border Grid.Row="2" Style="{StaticResource BorderCombo_Details}" Width="140" HorizontalAlignment="Right" Grid.Column="3" VerticalAlignment="Top">
<telerikInput:RadComboBox IsReadOnly="True" KeyUp="OnKeyUpClear" FlowDirection="RightToLeft" HorizontalAlignment="Right" x:Name="cmbVolStatus" TabIndex="4"
SelectionChanged="cmbVolStatus_SelectionChanged"
Style="{StaticResource RadComboBox_Details}"
SelectedValue="{Binding Source={StaticResource VolunteersVS},
Path=VD_VolStatusID, Mode=TwoWay,
ValidatesOnDataErrors=True,
NotifyOnValidationError=True}"
Validation.Error="Validation_Error"
SelectedValuePath="VS_ID"
DisplayMemberPath="VS_Desc"/>
</Border>

ComboBox

answered on 04 Feb 2011

0 answers

112 views

Export RadGridViewto excel with a column with CheckBox

Hi everybody!

I was working with the RadGridView control in the Telerik version 2009.2.701.35 and for some reasons we can not use newer version. We have been some time working on a way to export the values of a column (that we represent with checkboxes, even in the header) to excel.

As obvious, it can not handle directly the checkboxes and it left the spaces without value. We need to know if it is possible to set the value before the exporting time as I read it was possible for ASP.

Any idea?

Thanks in advance.

GridView

asked on 03 Feb 2011

2 answers

93 views

Drag ItemTemplate only text

I have been attempting to incorporate the Drag and Drop example for two listBoxes. Yet, when i drag my item it just shows the text and not the item template from the listBox. I have included a image to show what i am talking about...

private void OnDragInfo(object sender, DragDropEventArgs e)

{

if (e.Options.Status == DragStatus.DragComplete)

{

var listBox = e.Options.Source.FindItemsConrolParent() as ItemsControl;

var itemsSource = listBox.ItemsSource as IList;

var operation = e.Options.Payload as DragDropOperation;

itemsSource.Remove(operation.Payload);

}

private void OnDropInfo(object sender, DragDropEventArgs e)

{

var destination = e.Options.Destination;

if (e.Options.Status == DragStatus.DropPossible && destination is ListBoxItem)

{

var listBox = destination.FindItemsConrolParent() as ListBox;

FrameworkElement rootChild = VisualTreeHelper.GetChild(listBox, 0) as FrameworkElement;

Storyboard dropStoryboard = rootChild.FindResource("DropStoryboard") as Storyboard;

dropStoryboard.Begin();

//Get the DropCueElemet:

var dropCueElement = (VisualTreeHelper.GetChild(listBox, 0) as FrameworkElement).FindName("DropCueElement") as FrameworkElement;

var operation = e.Options.Payload as DragDropOperation;

//Get the parent of the destination:

var visParent = VisualTreeHelper.GetParent(destination) as UIElement;

//Get the spacial relation between the destination and its parent:

var destinationStackTopLeft = destination.TransformToVisual(visParent).Transform(new Point());

var yTranslateValue = operation.DropPosition == DropPosition.Before ? destinationStackTopLeft.Y : destinationStackTopLeft.Y + destination.ActualHeight;

dropCueElement.RenderTransform = new TranslateTransform() { Y = yTranslateValue };

e.Handled = true;

}

if (e.Options.Status == DragStatus.DropPossible && destination is ListBox)

{

var listBox = destination as ListBox;

FrameworkElement rootChild = VisualTreeHelper.GetChild(listBox, 0) as FrameworkElement;

Storyboard dropStoryboard = rootChild.FindResource("DropStoryboard") as Storyboard;

dropStoryboard.Begin();

//Get the DropCueElemet:

var dropCueElement = (VisualTreeHelper.GetChild(listBox, 0) as FrameworkElement).FindName("DropCueElement") as FrameworkElement;

var operation = e.Options.Payload as DragDropOperation;

// Get the size of the items:

var itemsPresenter = listBox.GetTemplateChild<FrameworkElement>("ItemsPresenterElement");

var panel = VisualTreeHelper.GetChild(itemsPresenter, 0) as Panel;

if (panel != null)

{

var yTranslateValue = panel.ActualHeight;

dropCueElement.RenderTransform = new TranslateTransform() { Y = yTranslateValue };

}

//Hide the DropCue:

if

(e.Options.Status == DragStatus.DropImpossible || e.Options.Status == DragStatus.DropCancel || e.Options.Status == DragStatus.DropComplete)

{

var listBox = destination as ListBox;

if (listBox == null)

{

listBox = e.Options.Destination.FindItemsConrolParent() as ListBox;

}

FrameworkElement rootChild = VisualTreeHelper.GetChild(listBox, 0) as FrameworkElement;

Storyboard dropStoryboard = rootChild.FindResource("DropStoryboard") as Storyboard;

dropStoryboard.Stop();

}

//Place the item:

if (e.Options.Status == DragStatus.DropComplete && destination is ListBoxItem)

{

var listBox = e.Options.Destination.FindItemsConrolParent() as ListBox;

var itemsSource = listBox.ItemsSource as IList;

var destinationIndex = itemsSource.IndexOf(e.Options.Destination.DataContext);

var operation = e.Options.Payload as DragDropOperation;

var insertIndex = operation.DropPosition == DropPosition.Before ? destinationIndex : destinationIndex + 1;

itemsSource.Insert(insertIndex, operation.Payload);

listBox.Dispatcher.BeginInvoke(new Action(() =>

{

listBox.SelectedIndex = insertIndex;

}));

}

//Place the item:

if (e.Options.Status == DragStatus.DropComplete && destination is ListBox)

{

var listBox = e.Options.Destination as ListBox;

var itemsSource = listBox.ItemsSource as IList;

var operation = e.Options.Payload as DragDropOperation;

itemsSource.Add(operation.Payload);

}

private void OnDropQuery(object sender, DragDropQueryEventArgs e)

{

var destination = e.Options.Destination;

if (e.Options.Status == DragStatus.DropDestinationQuery && destination is ListBoxItem)

{

var listBox = destination.FindItemsConrolParent() as ListBox;

//Cannot place na item relative to itself:

if (e.Options.Source == e.Options.Destination)

{

return;

}

//Get the spatial relation between the destination item and the vis. root:

var destinationTopLeft = destination.TransformToVisual(Window.GetWindow(destination)).Transform(new Point());

//Should the new Item be moved before or after the destination item?:

bool placeBefore = (e.Options.CurrentDragPoint.Y - destinationTopLeft.Y) < destination.ActualHeight / 2;

var operation = e.Options.Payload as DragDropOperation;

operation.DropPosition = placeBefore ? DropPosition.Before : DropPosition.After;

e.QueryResult = true;

e.Handled = true;

}

if (e.Options.Status == DragStatus.DropDestinationQuery && destination is ListBox)

{

var listBox = destination as ListBox;

// Cannot drop the last or only item of the list box within the same list box:

var operation = e.Options.Payload as DragDropOperation;

//if (listBox.ItemsSource != null && listBox.ItemsSource.Cast<object>().Last() != operation.Payload)

//{

e.QueryResult = true;

e.Handled = true;

//}

//else

//{

// e.QueryResult = false;

// e.Handled = true;

//}

}

private void OnDragQuery(object sender, DragDropQueryEventArgs e)

{

if (e.Options.Status == DragStatus.DragQuery)

{

var sourceControl = e.Options.Source;

e.QueryResult = true;

e.Handled = true;

var dragCue = RadDragAndDropManager.GenerateVisualCue(sourceControl);

dragCue.HorizontalAlignment = HorizontalAlignment.Left;

dragCue.Content = sourceControl.DataContext;

e.Options.DragCue = dragCue;

e.Options.Payload = new DragDropOperation() { Payload = sourceControl.DataContext };

}

if (e.Options.Status == DragStatus.DropSourceQuery)

{

e.QueryResult = true;

e.Handled = true;

}

any help would be great... im still relatively new to the WPF game... i apologize in advance...

DragAndDrop

answered on 03 Feb 2011

2 answers

54 views

Starting day of weekly view

I want to make the starting day of weekly view to be Tuesday.
How can I do it?

Right now I have an ugly workaround of the following.
The users simply has to ignore empty sunday and monday on the left.

<telerik:WeekViewDefinition
x:Name="weekViewDefinition"
VisibleDays="9"/>

ScheduleView

answered on 03 Feb 2011