Questions on UI for WPF Forum

4 answers

145 views

QueryableDataServiceCollectionView Distinct not Supported

I have a QueryableDataServiceCollectionView bound to a RadGridView and RadDataPager. Working good so far. Except, when I try to pop down the filtering menu, I get a Distinct is not supported error from WCF Data Services. Which makes a lot of sense. WCF Data Services doesn't support Distinct.

So why are you guys trying to use Distinct? The control should be smart enough to know that it's not supported, and do it some other way...

DataServiceDataSource

answered on 11 Jan 2013

2 answers

121 views

Problems with Impersonation and GridView

I have been having some issues trying to use an impersonated application with telerik controls in it, especially the RadGridView.

It shows a access denied in one of the resources for the grid.

I have linked to a sample project where you can test it. It requires that someone with no access to the current PC login through the application.

It uses windows authentication for the credentials.

Here is the sample code
http://sdrv.ms/SSQ3UD

Thanks for your help

GridView

answered on 11 Jan 2013

1 answer

112 views

WPF upgrade to Q3 2012.3.1307.40

Hi,

Below error is seen after upgrading to latest Telerik Release 2012.3.1207.40

"Recursive call to Automation Peer API is not valid."

Call Stack location

Telerik.Windows.Controls.Navigation.dll!Telerik.Windows.Controls.RadOutlookBarAutomationPeer.GetChildrenCore() Line 88 + 0x9 bytes.

Kindly advise whether there is going to be any fix for this sooner/ or any work around / use the previous version.

Thank you,
Phani.

General Discussions

answered on 11 Jan 2013

2 answers

66 views

RadPanel won't float!

I have a RadPanel which won't float when you right click its header and click "Float". CanFloat is true.

Has anyone encountered this?

Chris

Docking

answered on 11 Jan 2013

1 answer

96 views

Stacked values with only one collection

(sorry for my bad english)

With a List<T> where T is:

class Data

{

public string Product { get; set; }

public decimal Quantity { get; set; }

public decimal Reserved { get; set; }

}

how can I create a chart like the image attached?

Looking on the sample it is clear that if I create 2 collections, one returning Product/Quantity and another returning Product/Reserved, I can accomplish that. But is it possible with only one collection with all the data?

ChartView

answered on 11 Jan 2013

1 answer

151 views

Is RadSplitButton.DefaultItem in WPF?

The Working with RadSplitButton Items webpage shows a DefaultItem property for RadSplitButton. Is this available in the WPF RadSplitButton? It doesn't appear so.

I have the need for this functionality in our MVVM WPF application (using Caliburn Micro as our MVVM framework).

In the Style for this control, I can set a property as shown below:

<Setter Property="cal:Message.Attach" Value="[Event Click]=[Action CreateNewLink2]"/>

CreateNewLink2 is fired when I click the button without dropping down the control, but if I create a guard property for this method, the entire control is disabled. I need the dropdown to dropdown even when the guard property prevents executing the command (CreateNewLink2) since there are commands on the dropdown that can be enabled even when the CreateNewLink2 (command for the button) is disabled.

Can this be done?

Buttons

answered on 11 Jan 2013

1 answer

254 views

Min and Max Size Issue

Hi,

I try to build a layout defined in the sample image attached.
The principle is that each module has a fixed position, but the size can be changed by the user, in a min / max range.

Here is my code :

<Window x:Class="WpfApplication2.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">

<Window.Resources>

<Style x:Key="DefaultRadPaneStyle"

TargetType="telerik:RadPane">

<Setter Property="Focusable"

Value="False" />

<Setter Property="PaneHeaderVisibility"

Value="Collapsed" />

<Setter Property="CanUserClose"

Value="False" />

<Setter Property="CanFloat"

Value="False" />

<Setter Property="CanDockInDocumentHost"

Value="False" />

<Setter Property="CanUserPin"

Value="False" />

<Setter Property="IsPinned"

Value="True" />

<Setter Property="ContextMenuTemplate"

Value="{x:Null}" />

</Style>

</Window.Resources>

<Grid>

<telerik:RadDocking x:Name="docking"

AllowUnsafeMode="True">

<telerik:RadDocking.DocumentHost>

<Grid />

</telerik:RadDocking.DocumentHost>

<telerik:RadSplitContainer Orientation="Vertical"

InitialPosition="DockedLeft"

Width="300"

MinWidth="100"

MaxWidth="400">

<telerik:RadPaneGroup MinHeight="100"

MaxHeight="300">

<telerik:RadPane Style="{StaticResource DefaultRadPaneStyle}" />

</telerik:RadPaneGroup>

<telerik:RadPaneGroup>

<telerik:RadPane Style="{StaticResource DefaultRadPaneStyle}" />

</telerik:RadPaneGroup>

<telerik:RadPaneGroup>

<telerik:RadPane Style="{StaticResource DefaultRadPaneStyle}" />

</telerik:RadPaneGroup>

</telerik:RadSplitContainer>

<telerik:RadSplitContainer Orientation="Horizontal"

InitialPosition="DockedBottom"

Height="300"

MinHeight="100"

MaxHeight="400">

<telerik:RadPaneGroup>

<telerik:RadPane Style="{StaticResource DefaultRadPaneStyle}">

</telerik:RadPane>

</telerik:RadPaneGroup>

<telerik:RadPaneGroup>

<telerik:RadPane Style="{StaticResource DefaultRadPaneStyle}">

</telerik:RadPane>

</telerik:RadPaneGroup>

<telerik:RadPaneGroup>

<telerik:RadPane Style="{StaticResource DefaultRadPaneStyle}">

</telerik:RadPane>

</telerik:RadPaneGroup>

</telerik:RadSplitContainer>

</telerik:RadDocking>

</Grid>

</Window>

Is this the good way to achieve this?
How can I specify the min and max size (height or width) for the RadPaneGroup ? (the given example has unexpected behaviour, as in the second capture)

Regards
Philippe

Docking

answered on 11 Jan 2013

5 answers

409 views

[Solved] RadSplitButton with ContextMenu in DropDownContent Binding not working

I have a RadSplitButton on my form. The RadSplitButton's DropDownContent contains a RadContextMenu. Here's a snippet of the xaml:

<telerik:RadSplitButton Background="{DynamicResource ButtonBackground}"

Click="MisreadButton_Click"

CloseOnEscape="False"

Content="INCORRECT"

DropDownIndicatorVisibility="Visible"

DropDownPlacement="Top"

FontSize="20"

FontWeight="Bold"

Foreground="{DynamicResource ButtonForeground}"

Height="60"

HorizontalAlignment="Right"

IsEnabled="False"

Margin="10"

Name="IncorrectButton"

VerticalAlignment="Center"

Width="200">

<telerik:RadSplitButton.DropDownContent>

<tl:RadContextMenu DisplayMemberPath="Value"

ItemsSource="{Binding Path=RejectionReasons, RelativeSource={RelativeSource AncestorType={x:Type c:AlarmsDialog}}}"

tl:RadMenuItem.Click="RadContextMenu_ItemClick" />

</telerik:RadSplitButton.DropDownContent>

</telerik:RadSplitButton>

In the Window's constructor, after calling InitializeComponent, I create an ObservableCollection and assign it to RejectionReasons. I then populate that ObservableCollection with ItemChoice objects:

public class ItemChoice<TKey> : INotifyPropertyChanged {

private TKey iKey;

public TKey Key {

get { return iKey; }

set {

iKey = value;

if ( PropertyChanged != null ) {

PropertyChangedEventArgs e = new PropertyChangedEventArgs( "Key" );

PropertyChanged( this, e );

}

private string iValue = string.Empty;

public string Value {

get { return iValue; }

set {

iValue = value;

if ( PropertyChanged != null ) {

PropertyChangedEventArgs e = new PropertyChangedEventArgs( "Value" );

PropertyChanged( this, e );

}

public ItemChoice() {}

public ItemChoice( TKey key, string value ) {

Key = key;

Value = value;

}

public ItemChoice( KeyValuePair<TKey, string> item ) {

Key = item.Key;

Value = item.Value;

}

public override string ToString() {

return Value.ToString();

}

public static explicit operator KeyValuePair<TKey, string>( ItemChoice<TKey> item ) {

return new KeyValuePair<TKey, string>( item.Key, item.Value );

}

public event PropertyChangedEventHandler PropertyChanged;

}

But the RadContextMenu's Items collection remains empty, even after I populate the collection. I use this same ItemChoice class with ComboBoxes and ListBoxes and it works fine. What am I doing wrong?

Also, in my RadMenuItem.Click handler, how do I get a reference to the ItemChoice that generated the RadMenuItem? It's not at all clear to me from the properties that are available in that class.

Tony

Buttons

answered on 11 Jan 2013

1 answer

111 views

Performance Problems

Hi we are having some performance problems with using a few instances of the scheduleView.
How can I send you a demo project which demonstrates the problem?
TNX

ScheduleView

answered on 11 Jan 2013

1 answer

190 views

RadRichTextbox with RadRichTextBoxRibbonUI in Prism

Hi,

We are on the design stage for a WPF Prism application, and we want to provide an editor functionality similar to MS Word in one of our modules. We have a toolbar region in the top of the page that should load the module containing the RadRichTextBoxRibbonUI, and a content region in the middle of the screen that should load the module containing the RadRichTextbox for editing. So the Rich Textbox and its Ribbon are in 2 separate module for loose coupling. In the WPF demo examples, the commands in Ribbon are bound the RichTextbox in XAML (i.e. DataContext and Commands). Is there any suggestion how can we implement our design? Can we pass a reference of the RichTextbox and do the necessary binding in the code at load time of the ribbon?

Any hints would be appreciated!

Regards

RichTextBox

answered on 11 Jan 2013