Questions on UI for WPF Forum

1 answer

131 views

Caret doesn't show upon start when RichTextBox is empty

When the RichTextBox is empty upon start, the caret does not show when I click on the control. However, when I type into the richtextbox, the text shows and the caret appears as well. I tried setting the caretposition of the document in the constructor, but that doesn't work. How do I make the caret show upon start?

Below is the xaml of the usercontrol.

<UserControl x:Class="CommonControl.HtmlEditor"

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

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

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

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

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

xmlns:telerikHtml="clr-namespace:Telerik.Windows.Documents.FormatProviders.Html;assembly=Telerik.Windows.Documents.FormatProviders.Html"

xmlns:telerikHtmlMain="clr-namespace:Telerik.Windows.Documents.FormatProviders.Html;assembly=Telerik.Windows.Documents"

mc:Ignorable="d">

<telerik:RadRichTextBox HorizontalAlignment="Stretch" LayoutMode="Flow" x:Name="editor" AllowDrop="True" Drop="editor_Drop" ShowComments="False"

BorderBrush="Transparent" BorderThickness="0" MinWidth="536" IsSelectionMiniToolBarEnabled="False"

IsContextMenuEnabled="True" IsInHeaderFooterEditMode="False" DocumentPresentationChanged="EditorDocumentContentChanged"

MaxWidth="1024">

</telerik:RadRichTextBox>

</UserControl>

RichTextBox

answered on 20 Jan 2012

3 answers

117 views

DataForm "Soft Delete"

Hi,

I was wondering if it is possible to setup the WPF data form to do a soft delete without removing the item "deleted" from the collection. Thanks in advance for any advice/help.

Sincerely,

Jon

DataForm

answered on 20 Jan 2012

1 answer

68 views

RadDataPager gets disabled if an item is edited

Hallo.

Why is RadDataPager disabled if an entity form the connected RadDataServiceDataSource is modfied?
And how can change this behaviour?

Hoping for a useful reply
Florian

DataPager

answered on 20 Jan 2012

4 answers

176 views

Button Click event suppressed by RadTabControl

Hi

If I click the close button in my TabItem it closes the first time the tab is opened, from then on to close any open tabs I must click the close button twice, has anyone seen this and is there a workaround?

Thank you,
Patrick

<telerik:RadTabControl ItemsSource="{Binding Path=ActiveControllers}">

<telerik:RadTabControl.ItemTemplate>

<DataTemplate>

<telerik:RadButton ToolTip="Close" Click="OnClose">

<Image Width="12" Height="12" Source="/O;component/I/Delete.png"/>

</telerik:RadButton>

</DataTemplate>

</telerik:RadTabControl.ItemTemplate>

</telerik:RadTabControl>

TabControl

answered on 20 Jan 2012

22 answers

881 views

Animate cell when data changes

Can anyone suggest an elegant way to animate a cell (i.e. flash it) when the data in it changes. I'm using GridViewDataColumn and DataMemberBinding.

The only thing I've been able to come up with is to use the grid's RowLoaded to iterate through each cell in the row and pick out the DataContext and the binding's source to create a new event handler to run an animation. Unfortunately, RowLoaded isn't the best because it's called when re-sorting etc.

GridView

answered on 20 Jan 2012

5 answers

281 views

RadDataPager: Sorting with OData

Hallo,

I've bound an OData service via RadDataServiceDataSource to a RadGridView and a RadDataPager.

Unfortunately the sorting does not work across pages. I've traced trace the server side an found that the orderby property is not set on the query.

The connection is very simple:

<telerik:RadDataServiceDataSource x:Name="_partnerSource" AutoLoad="True" QueryName="AllPartners" />

<telerik:RadDataPager Name="_pager"

Source="{Binding DataView, ElementName=_partnerSource}" IsEnabled="True" PageSize="10"/>

<telerik:RadGridView Name="gridPartner" AutoGenerateColumns="False" DataLoadMode="Synchronous" IsFilteringAllowed="True" ItemsSource="{Binding DataView, ElementName=_partnerSource}">

The DataServiceQuery<PartnerInfo> AllPartners is take from the Service Reference

What may be missing or wrong?

Greetings Florian

DataPager

answered on 20 Jan 2012

5 answers

113 views

Where can i change the CurrentVisibleRangeText format?

Hi,

in the toolbar with the buttons week, month and so on, there is a dateformat. In weekview for example its 5 - 11 December 2011. I want to change the format in 05.12.2011 - 11.12.2011. Where can i do this? I tested the property GroupHeaderDateStringFormat with:
GroupHeaderDateStringFormat="{}{0:dd.MM.yyyy} - {1:dd.MM.yyyy}
but nothing happend. And the CurrentVisibleRangeText property is get only.

Thanks
Annett

ScheduleView

answered on 20 Jan 2012

1 answer

149 views

How does Sampling Work?

I've read the documentation on sampling but it's still not clear to me exactly what RadChart is doing. For example I have a Scatter chart with approximately 3000 data points. The data points are spread, fairly evenly, across approximately 6 hours of time along the X axis. In other words, data is not disproportionately bunched anywhere along the X axis. It's pretty evenly spread out. The Y axis values range from approximately 60 to 66, with no particular pattern. Can you tell me exactly how RadChart would sample this data, assuming I select a sampling value of say 300 (1/10 of the data). I have not specified the method of sampling (average, min, max etc.), because I don't really know which would be best in my case.

Thank you.

Chart

answered on 20 Jan 2012

1 answer

148 views

How to use the same legend for multiple charts?

Hi telerik,

I wish to abuse the chart.
Since ChartLegend is a separate object referenced by the RadChart, I thought I could re-use the legend object to obtain a single legend for several RadCharts. This way I wanted to achieve the interactivity effects of hovering over graphs / legends and seeing the highlight in the other.

My starting point was four charts, where the first three were real plots (with hidden legend) where as the last was a RadChart with hidden ChartArea. That worked well, but with no interactivity.

If I create the ChartLegend object first and reference it from the remaining three RadCharts, I do get the legend headers in the ChartLegend, but still no interactivity.

Is this even possible? Or should I just 'accept' the separation and 'manually' handle the highlighting? Can you send me in a direction where I might get lucky?

Thanks,

Anders, Denmark

Chart

answered on 20 Jan 2012

3 answers

180 views

GridviewCell

Hi,

Just wondering, can I modify background color of a disable GridViewCell instead of grey can I change it to other color. I tried using data trigger and directly set background color to white however it's not working. Is there a way to achieve this?

Type	Description
Air	Air
Fire	Fire
Land
Water	Water
Land

Regards,
Howell

GridView

answered on 20 Jan 2012