Questions on UI for WPF Forum

5 answers

268 views

I've got some weird behaviour going on, its probably something I've done, but I can't seem to work out whats going on.

I've set up two stack panels on my usercontrol, one called New Trip and one called New Misc Job - on initialize of the usercontrol I'm setting up the DragDropManager - actually all I'm doing is specifying the methods for DragIntialize like so :

DragDropManager.AddDragInitializeHandler(newTripDrag, NewTripDragInitialize);

DragDropManager.AddDragInitializeHandler(newJobDrag, NewMiscDragInitialize);

When the user drags one of the stackpanels onto the scheduleview, I've got some custom dragdropbehaviour going on, but at the end of the Drop method, it always calls base.Drop() and this is where the weird behaviour comes in, when I'm dragging a trip, it works perfectly and the trip is selected afterwards, but when I drag a misc job, it fires off the SelectedAppointment method with a null value which makes nothing selected afterwards.

Why would it be calling the SelectedAppointment for one and not the other, is there something I can change to stop this from happening, I've attached the Call Stack from the point of base.Drop() to Setting the SelectedAppointment for when I dragged a Misc Job (if that helps).

ScheduleView

answered on 26 Apr 2017

1 answer

114 views

InternalScope in Disposed Objects

So I seem to have a memory leak. I am using JustTrace and Memory Profiler. What happens is in using the RadListBox on one of my views, I see InternalScope objects keep adding up everytime I open the view that has that RadListBox. But I don't know what that class is used for or what would make that problem? Any detailed help on how to find the root of this problem would be appreciated. Been trying to figure it out for days and have commented out templates and styles.

ListBox

answered on 26 Apr 2017

1 answer

244 views

RadListBox memory leak

Hello,
I'm using telerik control tools for WPF UI ver: 2015.1.0401.45
I have noticed that radlistbox has a huge memory leak. On replacing radlistbox with Microsoft listbox, memory leak does not occur.
I'm attaching the demo project (replace fileextension of file from .jpg to .zip).
This project demonstrates the problem of memory leak. Actually the memory leak occurs on data binding
I've remarked the Microsoft listbox in xaml, so to prove my claim, just use Microsoft listbox instead of radlistbox and see the difference in memory usage of the processes.
Do you have a patch to fix this issue ?
Thank you,
Alex

ListBox

answered on 26 Apr 2017

1 answer

259 views

ExportToPdf - add page number and title

Hi!

I would like to suggest that page numbers and a page title be optionally added when exporting a GridView to Pdf. This should be easy to implement since RadSpreadProcessing already has a class "HeaderFooterSettings". Just expand the "GridViewPdfExportOptions" with two options: ShowPageNumbers (true/false) and PageTitle (string). Should be done in no time.

Regards
Heiko

GridView

answered on 26 Apr 2017

1 answer

662 views

RadWindow Auto Re-size at runtime

I had browsed for a similar issue & seen the below link which had the same issue of mine, its said by Telerik that issue is resolved but I could not get the fix anywhere.

http://www.telerik.com/forums/radwindow-autosize-on-runtime#e9i78SNv102TDO2DCh_z6g

I have created a RadWindow and its content is set to a wpf view which has some controls & a RadExpander. I want this RadExpander to be shown when its expanded(my RadWindow Width should be resized accordingly).
I have set ResizeMode="NoResize" and SizeToContent="True" for my RadWindow. But RadWindow doesn't seem to adjust according to its content, how can I achieve It?(I have not set any Height or Width to my RadWindow)

Is SizeToContent changed to Enum to support WidthAndHeight or what is the fix for the problem given??

Expander

answered on 26 Apr 2017

5 answers

678 views

RadWindow Autosize on runtime

Hello guys,

I have created a RadWindow as a User Control and It has ResizeMode="NoResize" and SizeToContent="True". Inside the content I have an Stackpanel that is collapsed and when I turn It visible on runtime, the content below is hidden because the RadWindow doesn't resize, how can I achieve It?

Window

answered on 26 Apr 2017

8 answers

418 views

Insert words in combobox text - Edit mode

Hi,
I have a RadCombobox with following properties:

IsEditable="True"
OpenDropDownOnFocus="False"
TextSearchMode="Contains"
IsFilteringEnabled="True"
UpdateTextOnLostFocus="False"
CanAutocompleteSelectItems="False"
IsReadOnly="False"

And when user types, I open the dropdown with following code:
comboBox.IsDropDownOpen = true;

my problem is:
when a user wants to insert some words in exist text, whole text will be clear.
what I can do to solve this.

My project:
http://www.mediafire.com/file/2ru22za4ztsuas4/ComboBoxEditModeProj.rar

Thanks.

ComboBox

answered on 26 Apr 2017

1 answer

118 views

[Bug Report] Slot class implementation

Hi,

I'm talking about class "Slot" in Telerik.Windows.Controls.ScheduleView namespace.

Let's take a look to Slot(IOccurrence occurence) constructor, line 14 may cause NullReferenceException:

01.public Slot(IOccurrence occurence) : base(occurence)

02. {

03. IAppointment appointment = occurence as IAppointment;

04. if (appointment != null)

05. {

06. if (appointment.RecurrenceRule != null)

07. {

08. this.RecurrencePattern = appointment.RecurrenceRule.Pattern;

09. }

10. }

11. else

12. {

13. Occurrence occurrence = occurence as Occurrence;

14. appointment = occurrence.Appointment;

15. if (occurrence != null)

16. {

17. appointment = occurrence.Appointment;

18. }

19. }

20. this.TimeZone = appointment.TimeZone;

21. this.Resources.AddRange(appointment.Resources);

22. }

ScheduleView

answered on 25 Apr 2017

4 answers

755 views

[Solved] Display series label with Trackball Info Template

Using the sample below, how would I get the "VendorName" property to display next to the values of each series in the trackball info popup, just like it would appear in the legend?

<telerik:RadCartesianChart x:Name="chart" Palette="Summer" Height="209">

<telerik:RadCartesianChart.HorizontalAxis>

<telerik:CategoricalAxis></telerik:CategoricalAxis>

</telerik:RadCartesianChart.HorizontalAxis>

<telerik:RadCartesianChart.VerticalAxis>

<telerik:LinearAxis HorizontalAlignment="Right"></telerik:LinearAxis>

</telerik:RadCartesianChart.VerticalAxis>

<telerik:RadCartesianChart.Behaviors>

<telerik:ChartTrackBallBehavior ShowTrackInfo="True"

ShowIntersectionPoints="True" />

</telerik:RadCartesianChart.Behaviors>

<telerik:RadCartesianChart.SeriesProvider>

<telerik:ChartSeriesProvider Source="{Binding ElementName=window1, Path=vendorSalesByYear}">

<telerik:ChartSeriesProvider.SeriesDescriptors>

<telerik:CategoricalSeriesDescriptor ItemsSourcePath="Data" ValuePath="Sales" CategoryPath="MonthName">

<telerik:CategoricalSeriesDescriptor.Style>

<Style TargetType="telerik:LineSeries">

<Setter Property="LegendSettings">

<Setter.Value>

<telerik:SeriesLegendSettings Title="{Binding VendorName}"/>

</Setter.Value>

</Setter>

<Setter Property="TrackBallInfoTemplate">

<Setter.Value>

<DataTemplate>

<StackPanel Background="White">

<StackPanel Orientation="Horizontal" Background="Transparent">

<TextBlock Text="{Binding VendorName}" />

<TextBlock Text=": "/>

<TextBlock Text="{Binding Path=DataPoint.Value, StringFormat=N0}" />

</StackPanel>

</DataTemplate>

</Setter.Value>

</Setter>

</Style>

</telerik:CategoricalSeriesDescriptor.Style>

</telerik:CategoricalSeriesDescriptor>

</telerik:ChartSeriesProvider.SeriesDescriptors>

</telerik:ChartSeriesProvider>

</telerik:RadCartesianChart.SeriesProvider>

</telerik:RadCartesianChart>

<telerik:RadLegend Items="{Binding LegendItems, ElementName=chart}" Margin="5" >

<telerik:RadLegend.ItemsPanel>

<ItemsPanelTemplate>

<StackPanel Orientation="Horizontal" HorizontalAlignment="Right" />

</ItemsPanelTemplate>

</telerik:RadLegend.ItemsPanel>

</telerik:RadLegend>

public partial class MainWindow : Window

{

public RadObservableCollection<VendorYearlyData> vendorSalesByYear { get; set; }

public MainWindow()

{

vendorSalesByYear = GetSampleData();

InitializeComponent();

}

private RadObservableCollection<VendorYearlyData> GetSampleData()

{

var result = new RadObservableCollection<VendorYearlyData>();

result.Add(new VendorYearlyData()

{

VendorName = "Vendor A",

Data = new RadObservableCollection<SalesInfo>()

{

new SalesInfo() { MonthName = "Jan", Sales = 5 },

new SalesInfo() { MonthName = "Feb", Sales = 7 },

new SalesInfo() { MonthName = "Mar", Sales = 6 },

new SalesInfo() { MonthName = "Apr", Sales = 8 }

}

});

result.Add(new VendorYearlyData()

{

VendorName = "Vendor B",

Data = new RadObservableCollection<SalesInfo>()

{

new SalesInfo() { MonthName = "Jan", Sales = 15 },

new SalesInfo() { MonthName = "Feb", Sales = 18 },

new SalesInfo() { MonthName = "Mar", Sales = 19 },

new SalesInfo() { MonthName = "Apr", Sales = 23 }

}

});

result.Add(new VendorYearlyData()

{

VendorName = "Vendor C",

Data = new RadObservableCollection<SalesInfo>()

{

new SalesInfo() { MonthName = "Jan", Sales = 21 },

new SalesInfo() { MonthName = "Feb", Sales = 25 },

new SalesInfo() { MonthName = "Mar", Sales = 26 },

new SalesInfo() { MonthName = "Apr", Sales = 25 }

}

});

return result;

}

public class SalesInfo

{

public string MonthName { get; set; }

public double Sales { get; set; }

}

public class VendorYearlyData

{

public string VendorName { get; set; }

public RadObservableCollection<SalesInfo> Data { get; set; }

}

ChartView

answered on 25 Apr 2017

1 answer

194 views

RadTimeLine, How to change text alignment in Period header Items

I would like to change alignment of text in header items. Is it possible ?

TimeLine

answered on 25 Apr 2017