Questions on UI for WPF Forum

9 answers

275 views

[Solved] Problem with saving Gauge into an image file

Hi,

With the old gauge (beta), I create some gauge controls and directly (without display) save the result in an Image file.
With the new gauge, I have some probleme with the ticks and label display (as you can see in the attached file).

The code I use is :

UC = new CircularGauge(); // Usercontrol WPF

UC.Width = 200; UC.Height = 200;

UC.Measure(new System.Windows.Size(UC.Width, UC.Height));

UC.Arrange(new Rect(0.0, 0.0, UC.Width, UC.Height));

UC.UpdateLayout();

RenderTargetBitmap oTargetBitmap = new RenderTargetBitmap((int)UC.Width, (int)UC.Height, 96.0, 96.0, System.Windows.Media.PixelFormats.Default);

oTargetBitmap.Render(UC);

PngBitmapEncoder oPngBitmapEncoder = new PngBitmapEncoder();

oPngBitmapEncoder.Frames.Add(BitmapFrame.Create(oTargetBitmap));

oPngBitmapEncoder.Save(msGaugeImage);

What is wrong in my approch ?
Is there a other way to do this ?

Thanks,

Yves

Gauges

answered on 26 Apr 2012

1 answer

285 views

How to implement on demand paging (through scroll) in radGridView WPF control?

Hi,

I want to implement on demand paging using scroll on radGridView control for my WPF windows application.
We are having a huge data in SQL server database which is causing performance issues if we display entire data on grid view.
We want to make WCF calls to fetch and display data on screen as we scroll down the grid.
We do not want to go for paging control option for this.

I have gone through one blog by Vladimir Enchev given below.
http://blogs.telerik.com/vladimirenchev/posts/09-12-21/how_to_custom_scrolling_with_radgridview_for_silverlight_and_wcf_ria_services.aspx

It explains how to implement this for silver light control. But we want to implement this for our WPF control using WCF service calls using SP to connect to DB.

Please guide us and give demo application in this regard.

Looking forward for an early response.

-------
Warm Regards,
Abhishek Vyas
Grapecity India Pvt. Ltd.

GridView

answered on 26 Apr 2012

10 answers

369 views

Telerik WPF controls in browser hosted application

Hi,
I'm currently working on a an application that uses a .NET windows form embedded in a web page in Internet Explorer, and am investigating the trial version of RadControls for WPF Q2 2009 SP1 to see if using these controls will be feasible.

When I try to include a radGridView control in the Windows form, I get the following error on loading it in Explorer:

"System.Windows.Markup.XamlParseException: Cannot find type 'Telerik.Windows.Controls.RadComboBox'. The assembly used when compiling might be different than that used when loading and the type is missing. Error at object 'System.Windows.Controls.ControlTemplate' in markup file 'Telerik.Windows.Controls.GridView;component/themes/office/silver/DistinctFilterControl.xaml'. ---> System.ApplicationException: Cannot find type 'Telerik.Windows.Controls.RadComboBox'. The assembly used when compiling might be different than that used when loading and the type is missing."

It looks as if Telerik.Windows.Controls.Input.dll assembly that contains the RadComboBox is not being downloaded even though it's part of the project.

I have a workaround for the issue, but to use the controls in a production environment I need to know:

1) is what I'm attempting to do supported behaviour?
2) if it is supported behaviour, will this issue be fixed?
3) if not, is this likely to be supported in the future?

Regards
Michael Mclean

GridView

answered on 26 Apr 2012

1 answer

69 views

[Solved] Application crash on insert table in RadRichTextBox if LayoutMode != Paged

Hello,

The application crashes when I insert a table (through the RadRichtTextBoxRibbonUI) in a RadRichTextBox. This only happens if the LayoutMode is different from Paged.

Does the suite not support tables in non-Paged textboxes? I have not been able to find any information on this in the documentation.

Regards,
James

RichTextBox

answered on 26 Apr 2012

1 answer

238 views

SelectionChanged Event Question

I am using the listbox control with a custom datatemplete.. I have noticed that the first time you select an item in the list box the selectionchanged even does not fire. It will only fire the second time you select an item from the list, unless I want to set the selectedIndex property which I do not want to do.

So if I dont want to have a pre selected item by default. How do I determine the first item in the list that's selected.

ListBox

answered on 26 Apr 2012

2 answers

241 views

DateTime column filter

Hi,

I have a RadGridView with multiple columns, one column contain a timestamp (date + time) and I would like to know how in the column filter I can filter only on the date part (of course, I need to keep the time part in the column) ?

Thank's

GridView

answered on 25 Apr 2012

1 answer

324 views

[Solved] Label column width to minimum

We have a grid with several properties. Length of each "Display name" is different: there are short names like "Step" and long names like "Upper alignment style". I want the "Display name" column (property name column) to auto-size according to the longest property name in the grid.
Currently I tried two options:
1. specify LabelColumnWidth to Auto, but this gives row-based auto-sizing, but I want that that all rows have the same width (looks like a single column)
2. not specify anything, the width is set to ~200px that's too long for me

Can you please suggest a proper way to have auto-sized width for the whole column?

Thank you!

PropertyGrid

answered on 25 Apr 2012

1 answer

201 views

Invalid apperance of dialog window in Windows XP

Hello!
In rare cases dialog window looks like on the attached screenshots. This problem is observed on Windows XP only in rare cases. Typicaly this problem happens right after application is launched.
What can cause this problem? How it can be fixed?

Window

answered on 25 Apr 2012

5 answers

297 views

Tile width do not expand to 100%

Hi,

I wonder why this code fails to produce tiles that occupy the full width of the TileView:

<telerik:RadTileView DockPanel.Dock="Top" ItemsSource="{Binding Phases}" ScrollViewer.HorizontalScrollBarVisibility="Disabled"

SelectionMode="Single" ColumnWidth="*" ColumnsCount="1" IsAutoScrollingEnabled="True"

IsSynchronizedWithCurrentItem="True" IsSelectionEnabled="True"

MaximizeMode="Zero" RowHeight="Auto"

telerik:TileViewPanel.IsRowsShrinkEnabled="True"

telerik:StyleManager.Theme="Expression_Dark">

<telerik:RadTileView.ContentTemplate>

<DataTemplate>

<Grid Margin="6">

<Grid.ColumnDefinitions>

<ColumnDefinition Width="*" />

<ColumnDefinition Width="Auto" />

</Grid.ColumnDefinitions>

<ContentControl Grid.Column="0" HorizontalAlignment="Stretch" Content="{Binding}" >

<ContentControl.Style>

<Style TargetType="{x:Type ContentControl}">

<Setter Property="ContentTemplate" Value="{StaticResource PhaseTemplate}" />

<Style.Triggers>

<DataTrigger Binding="{Binding IsChecked, ElementName=EditButton}" Value="True">

<Setter Property="ContentTemplate" Value="{StaticResource PhaseEditTemplate}" />

</DataTrigger>

</Style.Triggers>

</Style>

</ContentControl.Style>

</ContentControl>

<ToggleButton x:Name="EditButton" Margin="6,0,6,0" Grid.Column="1"

Style="{StaticResource EditToggleButton}"

HorizontalAlignment="Right" VerticalAlignment="Top" />

</Grid>

</DataTemplate>

</telerik:RadTileView.ContentTemplate>

</telerik:RadTileView>

I can see, using Snoop, that the TileView takes the full width where it's shown, but when I create TileViewItems in it, they occupy a fraction of the TileView. When I create a second TileViewItem, it's displayed in the second row, though, even if there's enough space left in the first row. It's like the column width is not what I expect, but the column count is respected.

Any help will be greatly appreciated.

Regards,

Alex

TileView

answered on 25 Apr 2012

1 answer

125 views

FilteringMode removed?

Hello,

I wanted to use

<telerik:RadGridView FilteringMode="FilterRow">
as explained in the docu here http://www.telerik.com/help/wpf/gridview-filtering-howto-configure-the-filtering-mode.html
however it is not available on the control

GridView

answered on 25 Apr 2012