Questions on UI for WPF Forum

1 answer

218 views

Hello,
I've implemented an undo capability into the grid. If a user changes the value of a field but they want to reverse the change they will click on the undo button and the change is undone. This undo functionality remembers only the last change. I've implemented this using List's and by clearing out the grid and re-building the grid using the data in the lists. It works but it's slow. Imagine re-building a 2000 row X 800 column grid. I tried saving the previous state of the data in the grid in another datatable and then getting rid of the current datatable and making this datatable the current one but I ran into many problems.

Is there a better way of doing this?

Thanks,

GridView

answered on 01 Feb 2016

5 answers

211 views

Unable to access controls present inside the RADbusyIndicator.

Hi,
We are trying to automate the controls present inside the RadbusyIndicator and not able to access the controls both using CUIT and UI Automation in our application.Similar behavior is observed with CRM Sample application in telerik website (http://www.telerik.com/wpf/sample-applications).Could you please check and provide necessary help in this regard??

Regards,
Nagasree.

BusyIndicator

answered on 01 Feb 2016

2 answers

255 views

Clicking on a button after checking check box in MultiselectionComboBox does not trigger button's click event

Hi,

I am trying to use RadComboBox with check box items - using this MultiselectionComboBox http://www.telerik.com/forums/multi-select-combobox-column-b1333dcb19e7#A84Ijx2y90Cke9PV3xKCOA

Then I added a button to this view and after checking some check boxes I click on this button - nothing happens and I need to click on it second time in order to trigger the desired action.

Looks like one click is "wasted" on closing the combobox. Is there any way to prevent this so that after checking any check box in combobox clicking on the button will actually trigger button click event?

Thanks

Victor

ComboBox

answered on 01 Feb 2016

11 answers

365 views

[Solved] RadCartesianBarChart show series when click on legend

Hi,

I am using radcartesianbarchart to show multiple bar series. For example if i have category1, category2, and total these are the series collection.

If i click on legent of category1, need to show the category1 series. same for category2. If i click on total it should show all series. How we can achieve this.

Using hover property we can show fadeout of other series. But i need to draw when click on the legend only. Also please advise how to do animation for the chart series.

Thanks,

Arun

Chart

answered on 01 Feb 2016

1 answer

182 views

Binding Dynamically using a RadMenu

Hi,

I'm trying to bind items dynamically to a RadMenu but I only ever see an empty RadMenu despite the fact that binding a standard Menu to the same DataContext property works perfectly fine.

In my screenshots you can see I've tried two approaches but the RadMenu directly under the TitleBar of the Window simply remains blank. I'm adopting the standard approach with ObservableCollections for this and since the standard Menu works, I can't see why the RadMenu doesn't.

I'd be very grateful for any assistance.

M.Young

Menu

answered on 01 Feb 2016

3 answers

1.2K+ views

Keep the ContextMenu open after MenuItem has been clicked?

I've adapted the ContextMenu sample from the sample application where you can set the Visibility for each Column of a RadGridView for my application.
Now it would be nice if the ContextMenu stays open and the user can set the Visiblity of all columns without having to right-click on the header for each single column he wants to show or hide and if the ContextMenu closes when you click outside of it.

Is there a way to do that with RadContextMenu?

Thx

ContextMenu

answered on 01 Feb 2016

1 answer

806 views

How to unsubscribe class handlers?

I need to unsubscribe these events

1. EventManager.RegisterClassHandler(typeof(RadTreeViewItem), Mouse.MouseDownEvent, new MouseButtonEventHandler(OnTreeViewItemMouseDown), false);
2. RegisterClassHandler(typeof(RadTreeView), RadDragAndDropManager.DragInfoEvent, new EventHandler<DragDropEventArgs>(OnTreeViewDragInfo), false);
3. RegisterClassHandler(typeof(RadTreeView), RadDragAndDropManager.DropQueryEvent, new EventHandler<DragDropQueryEventArgs>(OnTreeViewDropQuery), true);

TreeView

answered on 01 Feb 2016

1 answer

179 views

Change the RadialMenu default Button Icon

I've looked around and can't really figure out how to do this. Anyone have any ideas? I just want to change the gear looking image to something like a label. Is this possible?

RadialMenu

answered on 01 Feb 2016

2 answers

181 views

[Solved] RadTabItem Header Two Way binding not working

I have applied an editable radtabitem header as the following

I can see the editable TextBox set the the initial value for the header I can change it , but the Header Property it self still the same , so please what is wrong here?

<Style TargetType="{x:Type socialtracker:EditableTabHeaderControl}">

<Setter Property="Template">

<Setter.Value>

<ControlTemplate TargetType="{x:Type socialtracker:EditableTabHeaderControl}">

<Grid>

<Grid.Triggers>

<EventTrigger RoutedEvent="Grid.DragEnter">

<BeginStoryboard x:Name="GridBeginStoryboard">

<Storyboard>

<DoubleAnimation Storyboard.TargetName="ButtonTransform" Storyboard.TargetProperty="ScaleX" Duration="0:0:0.5" From="1" To="1.1"/>

<DoubleAnimation Storyboard.TargetName="ButtonTransform" Storyboard.TargetProperty="ScaleY" Duration="0:0:0.5" From="1" To="1.1"/>

</Storyboard>

</BeginStoryboard>

</EventTrigger>

<EventTrigger RoutedEvent="Grid.DragLeave">

<StopStoryboard BeginStoryboardName="GridBeginStoryboard"/>

</EventTrigger>

<EventTrigger RoutedEvent="Grid.Drop">

<StopStoryboard BeginStoryboardName="GridBeginStoryboard"/>

</EventTrigger>

</Grid.Triggers>

<TextBox x:Name="PART_EditArea"

Text="{Binding RelativeSource={RelativeSource TemplatedParent}, Path=Content, Mode=TwoWay}"

Visibility="Collapsed" />

<ContentPresenter x:Name="ContentPresenter"

Content="{Binding RelativeSource={RelativeSource TemplatedParent}, Path=Content, Mode=TwoWay}" />

</Grid>

<ControlTemplate.Triggers>

<Trigger Property="IsInEditMode" Value="True">

<Trigger.Setters>

<Setter TargetName="PART_EditArea" Property="Visibility" Value="Visible" />

<Setter TargetName="ContentPresenter" Property="Visibility" Value="Collapsed" />

</Trigger.Setters>

</Trigger>

</ControlTemplate.Triggers>

</ControlTemplate>

</Setter.Value>

</Setter>

</Style>

Binding binding = new Binding

{

Path = new PropertyPath("."),

Mode = BindingMode.TwoWay,

};

var editableTabHeaderControl = new FrameworkElementFactory(typeof(EditableTabHeaderControl));

editableTabHeaderControl.SetBinding(EditableTabHeaderControl.ContentProperty, binding);

DataTemplate newDataTemplate = new DataTemplate() { VisualTree = editableTabHeaderControl, };

RadTabItem item = new RadTabItem

{

Tag = new ObservableCollection<Tweet>(),

Name = "SelectedPrint" + _intSelectedPrintTabsCount.ToString(),

Header = " New Tab " + _intSelectedPrintTabsCount.ToString(),

HeaderTemplate = newDataTemplate

};

tbSearchAndFOllow.Items.Insert(tbSearchAndFOllow.Items.Count - 1, (item));

TabControl

answered on 31 Jan 2016

1 answer

246 views

[Solved] Alignment within aggregated column footer

Hello,

I have added a footer to my gridview using the SumFunction. The content of all regular cells is aligned right (numeric values) but I cannot change the alignment of the result in the footer. Everything placed in the footer is rendered with minimal width and ignoring the width of the column, therefor all alignment settings are ignored.

Any advices how to align the content in the footer?

Thanks in advance.

GridView

answered on 29 Jan 2016