Questions on UI for WPF Forum

3 answers

109 views

I'm currently evaluating switching our charting solution to Telerik. I've noticed that small changes in the Y values can be magnified when fully zoomed out. I'm not sure why this is or how I can minimize it.

It certainly makes the data look as though there are values that don't really exist.

As an example I have two screen shots of the chart. I've put the trackinfo at the same point in both so that you can see that the massive spike to the right of it is the same tiny ripple seen in the other shot.

Telerik_ChartViewer_LineSeries_ExaggeratedValues1.png - Zoomed out version, large spikes
Telerik_ChartViewer_LineSeries_ExaggeratedValues2.png - Zoomed in version, little ripples

Thanks

ChartView

answered on 29 May 2012

2 answers

984 views

Disable text editing but keep scrolling capabilities

Hi,

I came across this thread where they are asking the same question I have, however it's for Silverlight and two years old so I'd like to see if there's any change in WPF and 2012. The question is:
Is it possible to disable text selection and editing in an RTB but keep the scrollbars active so people can view all the content?

Thanks

RichTextBox

answered on 28 May 2012

0 answers

137 views

Error changing column visibility with RadContextMenu

I am trying to build a simple context menu for changing column visibility that is virtually identical to the sample file included in this post http://www.telerik.com/community/forums/wpf/gridview/changing-column-visibility-in-a-context-menu.aspx. But I'm encountering the following error:

An unhandled exception of type 'System.InvalidOperationException' occurred in PresentationFramework.dll

Additional information: Specified element is already the logical child of another element. Disconnect it first.

Here's a snippet of my markup:

<telerik:RadGridView Name="MyGridView" ItemsSource="{Binding Source={x:Static local:MainWindow.MyData}}" AutoGenerateColumns="False">
<telerik:RadGridView.Columns>
<telerik:GridViewDataColumn DataMemberBinding="{Binding Item}" UniqueName="Item" TextAlignment="Center">
<telerik:GridViewDataColumn.Header>
<TextBlock Text="Item Name" HorizontalAlignment="Center"></TextBlock>
</telerik:GridViewDataColumn.Header>
</telerik:GridViewDataColumn>
<telerik:GridViewDataColumn DataMemberBinding="{Binding Category}" UniqueName="Category" TextAlignment="Center">
<telerik:GridViewDataColumn.Header>
<TextBlock Text="Item Category" HorizontalAlignment="Center"></TextBlock>
</telerik:GridViewDataColumn.Header>
</telerik:GridViewDataColumn>
<telerik:GridViewDataColumn DataMemberBinding="{Binding Desc}" UniqueName="Desc" TextAlignment="Center">
<telerik:GridViewDataColumn.Header>
<TextBlock Text="Description" HorizontalAlignment="Center"></TextBlock>
</telerik:GridViewDataColumn.Header>
</telerik:GridViewDataColumn>
</telerik:RadGridView.Columns>
<telerik:RadContextMenu.ContextMenu>
<telerik:RadContextMenu Opened="RadContextMenu_Opened">
<telerik:RadContextMenu.ItemTemplate>
<DataTemplate>
<CheckBox IsChecked="{Binding IsVisible}" Content="{Binding Header}" />
</DataTemplate>
</telerik:RadContextMenu.ItemTemplate>
</telerik:RadContextMenu>
</telerik:RadContextMenu.ContextMenu>
</telerik:RadGridView>

I am evaluating trial version 2012_1_326.
Your help is appreciated.

GridView

asked on 28 May 2012

1 answer

354 views

ListBoxItem doublecllick .. get MVVM

Hi,

thank's for all xour help my listbox ist fine, but one more question. I have a EventSetter on my ListBoxItem

<EventSetter Event="MouseDoubleClick" Handler="ListBoxItem_MouseDoubleClick"/>

Code:

void ListBoxItem_MouseDoubleClick(object sender, RoutedEventArgs e)

{

Frame pageFrame = null;

pageFrame = helper.FindChild<Frame>(Application.Current.MainWindow, "MainFrame");

if (pageFrame != null)

{

var content = pageFrame.Content as Page;

var targetPage = content is Trichter1 ? new KontaktDetailAnsicht(myContact) as Page : new Trichter1() as Page;

pageFrame.NavigateToExample(targetPage);

}

But how do i get the ViewModel? I tried Contact myContact = e.OriginalSource as Contact, but myContact is null? How do i get Values of my doubleclicked ListboxItem as my ViewModel?

Thanks
Regards
Rene

ListBox

answered on 28 May 2012

1 answer

137 views

RibbonButton command fires if button is not visible

I have a ribbonview with 2 close buttons.
Only one button is visible at a time using the visible property binding
The problem is that when I use the KeyTip for the close button (CS for both) the first 
command always fires even if that button is not visible.
I would think that it should skip over the invisible button and fire the command for the
second button.
Is this a bug/missing functionality or expected behaviour?
  




          <!--  Close SIN (Client Info)  -->
          
 
                <telerik:RadRibbonButton CollapseToMedium="Never"
                                     Command="{x:Static InfraWorkCommands:WorkCommands.CloseClientInformationCommand}"
                                     LargeImage="/SC.NWS.Application;component/Resources/Icons/icn-Close_32.png"
                                     Size="Large"
                                     telerik:KeyTipService.AccessText="{Binding .[ClientInformationModuleResources.KeyTip_Close],
                                                                                FallbackValue=CS,
                                                                                Mode=OneWay,
                                                                                Source={StaticResource localization}}"
                                     Text="{Binding .[ClientInformationModuleResources.Menu_Close_SIN],
                                                    FallbackValue='Close',
                                                    Mode=OneWay,
                                                    Source={StaticResource localization}}"
                                     ToolTip="{Binding .[ClientInformationModuleResources.Menu_Close_Client_Info_TT],
                                                       FallbackValue='Close the current open page',
                                                       Mode=OneWay,
                                                       Source={StaticResource localization}}"
                                     ToolTipService.ShowOnDisabled="True"
                                     Visibility="{Binding IsNotGeneralInquiry,
                                                          Mode=TwoWay,
                                                          UpdateSourceTrigger=PropertyChanged}" />
 
         
            <!--  Close General Inquiry  -->
        
            <telerik:RadRibbonButton CollapseToMedium="Never"
                                     Command="{x:Static InfraWorkCommands:WorkCommands.CloseGeneralInquiryCommand}"
                                     LargeImage="/SC.NWS.Application;component/Resources/Icons/icn-Close_32.png"
                                     Size="Large"
                                     telerik:KeyTipService.AccessText="{Binding .[ClientInformationModuleResources.KeyTip_Close],
                                                                                FallbackValue=CS,
                                                                                Mode=OneWay,
                                                                                Source={StaticResource localization}}"
                                     Text="{Binding .[ClientInformationModuleResources.Menu_Close],
                                                    FallbackValue='Close SIN',
                                                    Mode=OneWay,
                                                    Source={StaticResource localization}}"
                                     ToolTip="{Binding .[ClientInformationModuleResources.Menu_Close_General_Inquiry_TT],
                                                       FallbackValue='Close the current open page',
                                                       Mode=OneWay,
                                                       Source={StaticResource localization}}"
                                     ToolTipService.ShowOnDisabled="True"
                                     Visibility="{Binding IsNotClientInformation,
                                                          Mode=TwoWay,
                                                          UpdateSourceTrigger=PropertyChanged}" />

RibbonView and RibbonWindow

answered on 28 May 2012

3 answers

161 views

RowActivated Clearing out SelectedItems

I have the following code in my RowActivated EventHandler

private void dgv_RowActivated(object sender, Telerik.Windows.Controls.GridView.RowEventArgs e)

{

dgv.SelectedItems.Clear();

foreach (var t in collection)

{

dgv.SelectedItems.Add(t);

}

I have SelectionUnit="FullRow" and SelectionMode="Extended"

The problem is that the rows are highlighted for a second, then only the row I double clicked on remains highlighted. Is there any way to do this?

GridView

answered on 28 May 2012

1 answer

219 views

RadWindow.Confirm() + escape key = true?

Hello,

According to this thread (see Konstantina's answer), pressing the "Escape" key with the Confirm dialog opened should return false.

But the following sample returns true:

bool? dialogResult = null

;

Telerik.Windows.Controls.RadWindow.Confirm(

new

Telerik.Windows.Controls.DialogParameters()

{

Closed = (w, e) =>

       dialogResult = e.DialogResult;

}

});

Is this the expected result? I would think escape would return false.

Thanks,

Simon

Window

answered on 28 May 2012

1 answer

97 views

Drop down not closing when using with VS Isolated shell

Hi,

I am using a RAD control (combobox) in my application that is a type of custom IDE, i am facing an issue with the combobox when i use it within a Isolated shell custom IDE. The issue description is as follows:-

When i click on the combobox the drop down opens and if i click on any other control or i click on the page that is contained in the IDE the drop down closes. However if i click and open the drop down and insted click on the header of the IDE (i.e. the top most part of the IDE, where the logo is diaplyed) the drop down will not close,

also if i resize the IDE and and move the window around the drop down list persists on the same position where it was opened as if it was no way attached to the combobox.

Instead if i use a normal WPF combobox it behaves normally and the drop down closes on clicking the IDE header also.

Please suggest what can be done in order to resolve the issue.

Regards,

Avinash Saxena

ComboBox

answered on 28 May 2012

6 answers

323 views

Get Character Position in a line?

Hi,

How do I go about getting the character position along a given line wherever the caret is placed?

I can get the CaretPosition easily enough, but the I don't want the X & Y coordinates. I need to count how many characters there are along a line up to where the caret is placed.

Thanks for your time,

Rob

RichTextBox

answered on 28 May 2012

1 answer

194 views

How to Bind the DocumentSource to a PDF file in network path.

Hi,

How can i bind DocumentSource to a PDF file in network path.

//property
public string FilePath
{
get; set;
}
DocumentSource = {Binding Filepath}

Thanks in Advance.

PDFViewer

answered on 28 May 2012