Questions on UI for WPF Forum

1 answer

118 views

RadMap performance in app with high memory usage

Hi guys,

My app typically uses high amount of memory, up to 1GB in some cases. My machine has 12GB so no problem. However in intensive cases, RadMap fails to respond after panning/zooming for a couple of times. When profiled, the bottleneck is in Telerik.Windows.Controls.Map.TileSource.CreateBitmap(). I tried using cache but not much improvement. Any advice?

<Window x:Class="RadMapPerf.MainWindow"

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

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

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

Title="MainWindow" Height="600" Width="800">

<Grid>

<telerik:RadMap x:Name="RadMap" Center="38.8993487,-77.0145665" UseDefaultLayout="False" ZoomLevel="7">

<telerik:RadMap.Provider>

<telerik:OpenStreetMapProvider IsTileCachingEnabled="True"/>

</telerik:RadMap.Provider>

</telerik:RadMap>

</Grid>

</Window>

public partial class MainWindow : Window

{

private readonly List<string> _memory = new List<string>();

public MainWindow()

{

InitializeComponent();

// fake memory usage

for (var i = 0; i < 100000000; i++)

_memory.Add("memory_usage");

}

Map

answered on 26 Mar 2015

1 answer

312 views

RTL : Numbering gets changed in RTL from left to right

Hello,

We use RadRichTextBox in RTL and when we import an HTML that contains Numbering the Bullet points come in Reverse direction.
Here is the Sample HTML and attached is the screenshot. Please provide a fix asap as our customers are facing many issues.

Best Regards,
Kushagra

-------------------------------------------------------------------------------------------------------------------

<html xmlns:v="urn:schemas-microsoft-com:vml"
xmlns:o="urn:schemas-microsoft-com:office:office"
xmlns:w="urn:schemas-microsoft-com:office:word"
xmlns:m="http://schemas.microsoft.com/office/2004/12/omml"
xmlns="http://www.w3.org/TR/REC-html40">

<head>
<meta http-equiv=Content-Type content="text/html; charset=unicode">
<meta name=ProgId content=Word.Document>
<meta name=Generator content="Microsoft Word 15">
<meta name=Originator content="Microsoft Word 15">
<link rel=File-List href="test2_files/filelist.xml">
<title>Untitled</title>

<link rel=themeData href="test2_files/themedata.thmx">
<link rel=colorSchemeMapping href="test2_files/colorschememapping.xml">

<style>

</style>

</head>

<body lang=EN-US style='tab-interval:.5in'>

<div class=WordSection1>

نتسيبنسبتيس ستيبنسيبت ستبسينبتسي
تنسيمتب (تسيباسبسبس)اتسياباتسيباتسباسببابستيابيسيابتيس<o:p></o:p>

نتسيبتنسيتبتسينبتسي (ايتسبس )
اسيتباتسيباتيساتبسبسيابتسيبايسا<o:p></o:p>

يبنتلتنيل (نتبلبتيلتي)
نبيلنمبيلنبينلبينلنيليمنليمنلنينيلنيلميلمينليت<o:p></o:p>

<![if !supportLists]>1.     <![endif]>تنيسبتسينب<o:p></o:p>

<![if !supportLists]>2.     <![endif]>تنسيتبسنيب<o:p></o:p>

<![if !supportLists]>3.     <![endif]>يستبنستتسينتس<o:p></o:p>

<![if !supportLists]>4.     <![endif]>تسينبتسيبسيبس<o:p></o:p>

<o:p> </o:p>

<o:p> </o:p>

<![if !supportLists]>5.     <![endif]>Fdsfds<o:p></o:p>

<![if !supportLists]>6.     <![endif]>Sdfsddfsd<o:p></o:p>

<![if !supportLists]>                                                                                                                                                                                                             
i.     
<![endif]>Ksdlfjksfj<o:p></o:p>

<![if !supportLists]>                                                                                                                                                                                                           
ii.     
<![endif]>Sdfjksldfj<o:p></o:p>

<![if !supportLists]>                                                                                                                                                                                                         
iii.     
<![endif]>Sdfjskfj<o:p></o:p>

<![if !supportLists]>                                                                                                                                                                                                        
iv.     
<![endif]>gfsdgd<o:p></o:p>

 <o:p></o:p>

</div>

</body>

</html>

-------------------------------------------------------------------------------------------------------------------

RichTextBox

answered on 26 Mar 2015

1 answer

166 views

RTL : Brackets get inverted when importing HTML in RichtextBox

Hello,

We are using richtextbox in RTL. We mostly use arabic text and the issue here is that the html which we have has some brackets which render properly when I open the html in a web brower (say Firefox,IE) and also from microsoft word, but when I try to import the same html in RichTextbox the brackets are either reversed or disoriented or not rendered properly. Attached are the sample html to reproduce the issue and the screenshots from word and telerik richtextbox editor.

Best Regards,
Kushagra

The HTML Content is listed below :

-------------------------------------------------------------------------------------------------------------

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"><html xmlns="http://www.w3.org/1999/xhtml"><head><meta http-equiv="Content-Type" content="text/html; charset=utf-8" /><title>Untitled</title><style type="text/css">
p { margin-top: 0px;margin-bottom: 0px;line-height: 1.15; }
body { font-family: 'Verdana';font-style: Normal;font-weight: normal;font-size: 16px; }
.Normal { telerik-style-type: paragraph;telerik-style-name: Normal;border-collapse: collapse; }
.TableNormal { telerik-style-type: table;telerik-style-name: TableNormal;border-collapse: collapse; }
.NormalWeb { telerik-style-type: paragraph;telerik-style-name: NormalWeb;margin-top: 6.66px;margin-bottom: 6.66px;border-collapse: collapse; }
.p_38469689 { telerik-style-type: local;text-align: right;direction: rtl; }
.s_418A915A { telerik-style-type: local;font-family: 'Arial';font-size: 16px; } </style></head><body>نتسيبنسبتيس ستيبنسيبت ستبسينبتسي تنسيمتب (تسيباسبسبس)اتسياباتسيباتسباسببابستيابيسيابتيسنتسيبتنسيتبتسينبتسي (ايتسبس ) اسيتباتسيباتيساتبسبسيابتسيبايسايبنتلتنيل (نتبلبتيلتي) نبيلنمبيلنبينلبينلنيليمنليمنلنينيلنيلميلمينليت  </body></html>

-------------------------------------------------------------------------------------------------------------

RichTextBox

answered on 26 Mar 2015

3 answers

244 views

Title for lines in RadCartesianChart

Hello Telerik Team,

I am trying to use RadCartesianChart with few lines. I displayed the lines on RadCartesianChart and added RadLegend to display line names. But the color is the same for each lines.

So my question is How can I add unique color for every line? Or How can I add title for every line (like attached NamedLines.jpg) with some set of colors (can be repeated)?

Thank you,
Iurii.

Chart

answered on 26 Mar 2015

6 answers

1.7K+ views

How to change tooltip duration?

Hi All,

How to change tooltip duration? My code like this:

<DataTemplate x:Key="ToolTipTemplate">

<Grid>

<Grid.RowDefinitions>

<RowDefinition />

</Grid.RowDefinitions>

<StackPanel Grid.Row="0" Orientation="Horizontal">

<TextBlock Text="Subject: " />

<TextBlock Text="{Binding Subject}" TextWrapping="Wrap" FontWeight="Bold" />

</StackPanel>

<StackPanel Grid.Row="1" Orientation="Horizontal">

<TextBlock Text="Body: " />

<TextBlock Text="{Binding Body}" TextWrapping="Wrap" />

</StackPanel>

<StackPanel Grid.Row="2" Orientation="Horizontal">

<TextBlock Text="Location: " />

<TextBlock Text="{Binding Appointment.Resources[0].ResourceName}" />

</StackPanel>

<StackPanel Grid.Row="3" Margin="0 5 0 0">

<StackPanel Orientation="Horizontal" Margin="0 0 0 0">

<TextBlock Text="{Binding Start, StringFormat='hh:mm tt'}" TextWrapping="Wrap" FontSize="10" />

<TextBlock Text=" - " FontSize="10" />

<TextBlock Text="{Binding End, StringFormat='hh:mm tt'}" TextWrapping="Wrap" FontSize="10" />

</StackPanel>

<TextBlock Text="{Binding Start, StringFormat='dddd dd MMM yyyy'}" Margin="0 3" FontSize="10" />

</StackPanel>

</Grid>

</DataTemplate>

.....

<telerik:RadScheduleView ToolTipTemplate="{StaticResource ToolTipTemplate}" ... >

...

</telerik:RadScheduleView>

ScheduleView

answered on 26 Mar 2015

1 answer

136 views

GridView context menu not working with header been a textblock

Hi,

I have followed this post from Telerik documentation to show context menu on the radgrid to choose columns of the grid.

http://docs.telerik.com/devtools/wpf/controls/radgridview/columns/how-to/use-radcontextmenu-mvvm.html

But, as we need to wrap header text, we are using textblock for it like below, due to which header text and the context menu items are not in sync. And so, I have ended up writing code in the radcontextmenu events in the code behind file to manually chose columns etc. Just wondering if there is a xaml way to achieve the same even when header text is placed inside a textblock or am I missing anything here?

Thanks,
Lax

<telerik:GridViewDataColumn DataMemberBinding="{Binding Balance, StringFormat=N0}" TextAlignment="Right" >

<telerik:GridViewDataColumn.Header>

<TextBlock Text="Balance prior deductions" TextWrapping="Wrap" Width="100px"/>

</telerik:GridViewDataColumn.Header>

</telerik:GridViewDataColumn>

GridView

answered on 26 Mar 2015

2 answers

299 views

Force Row Validation Failure on Cell edit update validation failure

Hi,

Is there an elegant way of forcing row validation failure while editing a GridView Cell, and BEFORE databinding takes place?

I have a decimal property bound on an object that is databound to an editable grid column, and I would like row validation to kick in immediately if the value in the cell (which is in edit mode) is not a valid decimal OR if the object bound to the row is not in a valid state.

I specifically want to use Row validation because cell validation only highlights the cell, whist row validation is more prominent because the whole line is highlighted in red as well as there is an exclamation mark on the left of the grid row being validated.

Do you have a good example of validation in a WPF RadGridView that uses MVVM? If there are please let me know.

Thanks for your help.

GridView

answered on 26 Mar 2015

4 answers

352 views

Tiles with round corners

I would also like to see the option of having round corners on the tiles.

Ed

TileList

answered on 26 Mar 2015

6 answers

607 views

Dynamically change mask

I'm trying to support a postal code textbox using the MaskedTextInput and was wondering if it was possible to databind to the mask property?

The logic is so:

Initially the textblock is blank so the mask would allow one number or letter.
If the first digit entered is a letter we dynamically change the mask to Canadian postal code (A#A #A#)
Otherwise it's a USA zip and the mask is #5

Perhaps I'm making this too complicated and there's a way to supply a mask in the form of a regex that can accomplish this for me?

MaskedInput (Numeric, DateTime, Text, Currency)

answered on 25 Mar 2015

3 answers

311 views

WindowsFormsHost not visible with EditorStyle DropDown?

I have a windows forms control I want to use as part of a custom editor. I created a WPF usercontrol as a wrapper and set my winforms usercontrol as the child of a WindowsFormsHost element. I have a TextBlock in the WPF usercontrol as well, so I can see where the WPF content is and where the winforms content is. I applied an EditorAttribute to a property with the style set to DropDown. The WPF TextBlock is visible, a border around the winforms content is visible, but the winforms usercontrol is not shown. If I change the editor style to Modal, all of the content is shown correctly in the modal dialog. Are there restrictions or known problems with using WindowsFormsHost in an editor with the DropDown style? Thanks - Mitch

PropertyGrid

answered on 25 Mar 2015