Questions on UI for WPF Forum

1 answer

127 views

Hi

When we click on Autoocomplete box we are ascertaining the below issue,
i have also glued the code where i am able to find the issue,
Can anyone help me to resolve this issue ?

string

_modeldesc = ((Telerik.Windows.Controls.RadWatermarkTextBox)(e.OriginalSource)).CurrentText;

Regards
Gayathri R

AutoCompleteBox

answered on 05 Feb 2013

2 answers

121 views

Change ColumnBackground at Runtime

I am able to set the ColumnBackground at design time in the XAML, but when I try to set the ColumnBackground at runtime when my Window is loaded, nothing happens. For example:

myGrid.ColumnBackground = new SolidColorBrush(Colors.AliceBlue);

Is it possible to set the ColumnBackground at runtime?

GridView

answered on 04 Feb 2013

1 answer

129 views

Filter Popup from ContextMenu

Hi,

is it possible to get the filter popup to show from a context menu rather then clicking the filter button on the column header

Thanks

David

GridView

answered on 04 Feb 2013

2 answers

128 views

Problem with resizing GridView

Hello. When I am resizing my GridView some cells can be displayed without borders (like merged) (in Expression dark theme, other themes work fine). Is it bug?

UPDATE: In other themes I found the same problem. I was doing very fast horisontal resizing

Style to my GridView

<Style x:Key="GridViewStandardStyle" TargetType="{x:Type controls:OlbGridView}">

<Setter Property="IsReadOnly" Value="True"/>

<Setter Property="GroupRenderMode" Value="Flat"/>

<Setter Property="VirtualizingStackPanel.IsVirtualizing" Value="True"/>

<Setter Property="AutoGenerateColumns" Value="False"/>

<Setter Property="ShowGroupPanel" Value="False"/>

</Style>

Thanks

GridView

answered on 04 Feb 2013

1 answer

269 views

RadCartesianChart Performance goes down when clicking combobox

I'm developing an application which uses the RadCartesianChart. There is also a ComboBox where I can choose some values. The performance of the Chart control is well (zooms and pans normally) until I click on the ComboBox. After this, the performance of the chart lacks. Panning and zooming is very slow. There are 288 values in this chart.
The problem appears on my computer (Core 2 Duo T9600). The problem doesn't appear on another computer (i7). I'm confused, because the ComboBox is needed. Telerik wpf controls are in v2012.2.607.40

Here the XAML:

<Window x:Class="testingComboboxBug.MainWindow"

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

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

xmlns:d="http://schemas.microsoft.com/expression/blend/2008"

xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"

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

mc:Ignorable="d ignore"

Height="400"

Width="800"

Title="MVVM Light Application"

DataContext="{Binding Main, Source={StaticResource Locator}}">

<Window.Resources>

<ResourceDictionary>

<ResourceDictionary.MergedDictionaries>

<ResourceDictionary Source="Skins/MainSkin.xaml" />

</ResourceDictionary.MergedDictionaries>

</ResourceDictionary>

</Window.Resources>

<Grid x:Name="LayoutRoot">

<Grid.ColumnDefinitions>

<ColumnDefinition Width="Auto"/>

<ColumnDefinition Width="*"/>

</Grid.ColumnDefinitions>

<ComboBox Grid.Column="0">

<ComboBox.Items>

<TextBlock Text="Bla1"/>

<TextBlock Text="Bla2"/>

<TextBlock Text="Bla3"/>

</ComboBox.Items>

</ComboBox>

<telerik:RadCartesianChart x:Name="RadCartesianChart" Margin="0" BorderBrush="Black" BorderThickness="0" Grid.Column="1"

Zoom="{Binding Zoom, Mode=TwoWay}" PanOffset="{Binding PanOffset, Mode=TwoWay}" HorizontalContentAlignment="Center">

<telerik:RadCartesianChart.Background>

<SolidColorBrush Opacity="0"/>

</telerik:RadCartesianChart.Background>

<telerik:RadCartesianChart.Behaviors>

<telerik:ChartPanAndZoomBehavior ZoomMode="Horizontal" />

</telerik:RadCartesianChart.Behaviors>

<telerik:RadCartesianChart.HorizontalAxis>

<telerik:DateTimeCategoricalAxis PlotMode="OnTicks" MajorTickInterval="20" LabelFormat="HH:mmm"

LabelStyle="{StaticResource labelFontStyle}" MajorTickStyle="{StaticResource tickStyle}" ShowLabels="True" Margin="0,-2,0,0" />

</telerik:RadCartesianChart.HorizontalAxis>

<telerik:RadCartesianChart.VerticalAxis>

<telerik:LinearAxis Title="Инт. ТС"/>

</telerik:RadCartesianChart.VerticalAxis>

<telerik:RadCartesianChart.Grid>

<telerik:CartesianChartGrid StripLinesVisibility="None" MajorLinesVisibility="XY" Margin="0">

<telerik:CartesianChartGrid.YStripeBrushes>

<SolidColorBrush Color="#FFD7D7D7" Opacity="0.3" />

<SolidColorBrush Color="Transparent" />

</telerik:CartesianChartGrid.YStripeBrushes>

</telerik:CartesianChartGrid>

</telerik:RadCartesianChart.Grid>

<telerik:BarSeries CategoryBinding="TimeStamp" ValueBinding="Value" ItemsSource="{Binding Counts}" PointTemplate="{DynamicResource BarSeriesTemplate}">

<telerik:BarSeries.Resources>

<DataTemplate x:Key="BarSeriesTemplate">

<!--<Rectangle StrokeThickness="0" Fill="{Binding DataItem.Quality, Converter={StaticResource QualityColorConverter}}" />-->

<Rectangle StrokeThickness="0" >

<Rectangle.Fill>

<LinearGradientBrush EndPoint="0.5,1" StartPoint="0.5,0">

<GradientStop Color="#FF066607" Offset="0"/>

<GradientStop Color="#FF00D603" Offset="1"/>

</LinearGradientBrush>

</Rectangle.Fill>

</Rectangle>

</DataTemplate>

</telerik:BarSeries.Resources>

</telerik:BarSeries>

</telerik:RadCartesianChart>

</Grid>

</Window>

Chart

answered on 04 Feb 2013

4 answers

342 views

Bring children into view on expand node

Hi,
I'm trying to replicate the way Windows Explorer works when you expand a node.
If you expand a node with child items, and those childred expand beyond the view, the view scrolls so that as many of the child nodes as possible are displayed.

Currently I have this code, which works the first time a node is expanded, but stops to work after contracting and expanding.

private void Tree_OnExpanded(object sender, RadRoutedEventArgs e)

{

var originalSource = e.OriginalSource

as RadTreeViewItem;

new Thread(() =>

{

while (originalSource.ItemContainerGenerator.ContainerFromIndex(0) == null)

Thread.Sleep(100);

Dispatcher.BeginInvoke(new Action(() =>

{

tree.BringIntoViewMode = BringIntoViewMode.HeaderAndItems;

originalSource.BringIntoView();

tree.BringIntoViewMode = BringIntoViewMode.Header;

}));

}).Start();

Is there a better way to implement this behavior?

TreeView

answered on 04 Feb 2013

1 answer

127 views

Release Date RadControls for WPF Q1'13 ?

Hi,

When will RadControls for WPF Q1'13 released and is available for download?

Thanks
Regards
Rene

General Discussions

answered on 04 Feb 2013

0 answers

73 views

ItemSource of type Interface

Hi,
i have a ItemSource of an ObservableCollection<ITestObject> and the user can add new rows to my RadGridView.

If the collections contains one item, the GridView takes this type for adding a new one.
In the case that the collection is empty, the user is unable to add one item.
Is there a way to work with collection of interface objects? Or is there a workaround?

GridView

asked on 04 Feb 2013

6 answers

355 views

Styling RadCalendar

Hey,

I'm working on a project that requires that I style the various elements of the RadCalendar to match the rest of the application. I've attached a mock-up of what the goal style is.

It seems that I'll need to remove the header and move the navigation buttons to the headers for the left and right-most month headers, but I'm not sure how to go about doing that as I'm not terribly well versed with Telerik on the whole (basically my first time using it) and would really appreciate any advice.

Thanks,
-Devin

Calendar

answered on 04 Feb 2013

1 answer

101 views

no more Chart demo ?

It seems that 2012 Q3 install includes ChartView demos only .

I could not find RadChart demos in demo application.

RadChart demo is not available any more?

Chart

answered on 04 Feb 2013