Questions on UI for WPF Forum

2 answers

428 views

RadRichTextBox "invisible" caret

Hello,

Could you, please, help me to make RadRichTextBox's caret visible?

I've tried to use solution with custom CaretFactory from this post... No results, unfortunately

Is it possible to make caret visible?

Here is some code examples of RadRichTextBox usage (my telerik version: 2018.3.911.45):

<telerik:RadRichTextBox x:Name="descriptionRichBox"

Grid.Row="0" Grid.Column="1" Margin="0,2,0,5" MinHeight="70"

BorderThickness="{Binding IsReadOnly, Converter={localConverters:BoolToBorderThicknessConverter}}"

FontSize="{Binding Source={StaticResource MediumNormal}, Path=Size}"

FontFamily="{Binding Source={StaticResource MediumNormal}, Path=Family}"

IsReadOnly="{Binding IsReadOnly}" GotFocus="RichTextBox_GotFocus"

DocumentInheritsDefaultStyleSettings="True" IsSpellCheckingEnabled="False"

/>

<telerik:HtmlDataProvider RichTextBox="{Binding ElementName=descriptionRichBox}"

Html="{Binding EditableObject.Description, Mode=TwoWay}"

/>

<Style TargetType="telerik:Caret">

<Setter Property="Template">

<Setter.Value>

<ControlTemplate TargetType="telerik:Caret" >

<Grid x:Name="RootElement" >

<ScrollViewer x:Name="ContentElement" BorderThickness="0" Padding="0" />

<Rectangle x:Name="Rectangle" />

</Grid>

</ControlTemplate>

</Setter.Value>

</Setter>

<Setter Property="HorizontalAlignment" Value="Left" />

<Setter Property="VerticalAlignment" Value="Top" />

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

<Setter Property="CaretBrush" Value="Black"/>

<Setter Property="Padding" Value="0" />

<Setter Property="Foreground" Value="Transparent" />

</Style>

public class DescriptionCaretFactory : ICaretFactory

{

public Caret CreateCaret()

{

return new Caret { Width = 2, MinWidth = 2, Height=5,

IsBlinking = true, IsEnabled = true,

Visibility = System.Windows.Visibility.Visible,

ToolTip = "test caret",

CaretBrush = System.Windows.Media.Brushes.Black, };

}

Best regards,

Ivan.

RichTextBox

answered on 07 Dec 2018

1 answer

411 views

Print Workbook wihout use of RadSpreadsheet

I have created a Telerik.Windows.Documents.Spreadsheet.Model.Workbook (with a single Worksheet) programmatically. I can export it to Excel no problem.

How can I print it?

I have found the following article: https://docs.telerik.com/devtools/wpf/controls/radspreadsheet/features/ui-printing#How_to_print_RadSpreadsheet

...but this would force me to work with the UI Control, which I don't want to do. Is it possible to print the Worksheet without the use of the UI control. I still want all the printing options, such as setting a header and footer, forcing the first row to be repeated on every page, control over portrait vs. landscape printing, etc.

Is there any way to do this?

Thanks in advance,

Bartek

Spreadsheet

answered on 06 Dec 2018

2 answers

81 views

Request: Bing aerial zooming

There was an old post about this but I've never been able to find it. At high zoom levels (20 and 21), the Aerial mode usually doesn't show images. Other modes show a zoomed-in version of the previous images, including AerialOnDemand. There doesn't seem to be a way not show labels with AerialOnDemand, unfortunately. Can Aerial be changed so that it also shows the zoomed-in previous images?

Bing documentation says: "Note: Some imagery may not be available at all zoom levels for all locations. If imagery is not available at a location, a message is returned in the ErrorDetails collection of the response."

Map

answered on 06 Dec 2018

1 answer

150 views

Performance issues when changing sampling threshold

Hi.
I have a program that in some cases need to show 20+ charts, each with 20 000+ data points, and the charts can be manipulated with pan and zoom so that every chart changes simultaneously. It also needs to have dynamic sampling so that the charts are simplified when displaying many points, but show detail when zoomed in. It works fine when panning, all the charts update smoothly. However when I zoom in or out, I need to change the chartdatasource sampling threshold to adjust the detail, and this is very slow. It takes several seconds for the operation to complete and all charts to update. Why does this take so long and is there any way to speed up the operation?

ChartView

answered on 06 Dec 2018

1 answer

354 views

Background Transparent

Why isn't it possible to set the background to transparent?

It always shows it white or another color you set but not transparent

NumericUpDown

answered on 06 Dec 2018

5 answers

158 views

Today-button includes time

When using the Today-button to select todays date, the selected value also includes the current time. Not what I would expect for the DatePicker. We solve it easy at our end, but I thought you might want to now.

DatePicker

answered on 06 Dec 2018

6 answers

356 views

Drop Line in Polar Chart

I am trying to draw a phasor diagram similar to http://www.texample.net/media/tikz/examples/PDF/phasor-diagram.pdf. Basically a polar chart with vectors radiating from the origin based on the magnitude and phase angle between 2 or more signals. A PolarPointSeries is really close but I basically need a drop line to draw the line from the point back to the origin. Changing the symbol at the point to an arrow with the correct orientation would be a nice touch as well.

ChartView

answered on 05 Dec 2018

5 answers

347 views

Handle right click command on RadContextMenu differently from left click

Hi there,

I have a RadContextMenu on a TreeListView and I've successfully hooked up the context menu to a command in my MVVM view model like this...

...

<telerik:RadContextMenu.ItemContainerStyle>
<Style TargetType="telerik:RadMenuItem" BasedOn="{StaticResource RadMenuItemStyle}" d:DataContext="{d:DesignInstance data:IContextMenuItem}">
<Setter Property="Command" Value="{Binding Command}"/>

This gets fired on both left clicks on the menu item as well as right clicks on the menu item. Is it possible to handle right clicks separately?

Thanks

Russell

TreeListView

answered on 04 Dec 2018

2 answers

183 views

First character lost when typing into GridViewMaskedInputColumn

Hello. I'm new to using Telerik and I'm experiencing strange behavior when editing data in the RadGridView control. I have a GridViewMaskedInputColumn and I lose the first character if I start editing the content of the cell by pressing 2 or more keys in quick succession. I've searched and searched these forums (as well as Telerik's guides and Google), but I could not find anything that helped. Please forgive me if I overlooked something.

My project currently using version 2018.1.122.45 of Telerik's WPF suite.

Here's a snippet of my XAML, please let me know if more detail is needed.

<telerik:RadGridView Name="MainGridView"

AutoGenerateColumns="False"

CanUserDeleteRows="False"

CanUserInsertRows="False"

CanUserReorderColumns="True"

CellValidating="MainGridView_CellValidating"

IsBusy="{Binding IsGridRefreshing}"

IsFilteringAllowed="False"

IsSynchronizedWithCurrentItem="True"

EditTriggers="TextInput"

RowIndicatorVisibility="Collapsed"

SelectionMode="Single"

SelectionUnit="FullRow"

ShowGroupPanel="False"

ShowSearchPanel="True"

ItemsSource="{Binding Path=DetailGridVM.TblDetailGrid}"

SelectedItem="{Binding Path=DetailGridVM.SelectedDetail, Mode=TwoWay}">

<telerik:GridViewMaskedInputColumn Header="Vendor Number"

Mask=">a6"

MaskType="Standard"

Name="GV_Column_VendorNumber"

Width="65"

DataMemberBinding="{Binding VendorNumber, Mode=TwoWay, UpdateSourceTrigger=PropertyChanged}">

<telerik:GridViewMaskedInputColumn.HeaderCellStyle>

<Style TargetType="telerik:GridViewHeaderCell">

<Setter Property="TextAlignment" Value="Center"/>

<Setter Property="TextWrapping" Value="Wrap"/>

<Setter Property="Background" Value="#FF9AE1B4"/>

<Setter Property="Foreground" Value="Black"/>

</Style>

</telerik:GridViewMaskedInputColumn.HeaderCellStyle>

<telerik:GridViewMaskedInputColumn.EditorStyle>

<Style TargetType="telerik:RadMaskedTextInput">

<Setter Property="SelectionOnFocus" Value="SelectAll"/>

</Style>

</telerik:GridViewMaskedInputColumn.EditorStyle>

</telerik:GridViewMaskedInputColumn>

</telerik:RadGridView>

Please note that the "Mask" property for the column object doesn't actually contain the ">" sign. It uses the correct notation as demonstrated in Telerik's guide, I just can't figure out how to escape it in this forum.

Thank you for any assistance.

GridView