Questions on UI for WPF Forum

6 answers

200 views

ExportPDF Custom Command Descriptor Issue

Hello,

I have written a Custom Command Descriptor based on the Telerik demos and documentation that exports the currently loaded document to a local file. Everything appears to be working 100% correct with no errors. However, when I open the file all the pages are blank. The page count is correct, so it appears to be reading the PDFViewer document correctly into the stream, just not writing all of the bytes properly. Here is my code behind for the page that contains the Document Viewer control.

using System;

using System.IO;

using System.Windows;

using System.Windows.Controls;

using System.Windows.Input;

using Telerik.Windows.Documents.Fixed.FormatProviders;

using Telerik.Windows.Documents.Fixed.FormatProviders.Pdf;

using Telerik.Windows.Documents.Fixed.Model;

using WeldTrackingWPF.ViewModel;

using Telerik.Windows.Controls;

using Telerik.Windows.Documents.Commands.Descriptors;

using Telerik.Windows.Documents.Commands;

namespace WeldTrackingWPF.View

{

/// <summary>

/// Interaction logic for ViewQualificationDoc.xaml

/// </summary>

public partial class ViewDoc : Page

{

public ViewDoc(byte[] fileBytes)

{

InitializeComponent();

/// <summary>

/// Read bytes into memory stream

/// Pass stream in RadPdfViewer for viewing

/// </summary>

this.pdfViewer.CommandDescriptors = new CustomCommandDescriptors(this.pdfViewer);

Stream stream = new MemoryStream(fileBytes);

FormatProviderSettings settings = new FormatProviderSettings(ReadingMode.AllAtOnce);

PdfFormatProvider provider = new PdfFormatProvider(stream, settings);

RadFixedDocument doc = provider.Import();

this.pdfViewer.Document = doc;

IconSources.ChangeIconsSet(IconsSet.Modern);

}

private void Page_Initialized(object sender, EventArgs e)

{

var vm = new ViewDocViewModel();

DataContext = vm;

}

private void PdfViewer_DocumentLoaded(object sender, EventArgs args)

{

}

private void Page_Unloaded(object sender, RoutedEventArgs e)

{

}

private void tbCurrentPage_KeyDown(object sender, KeyEventArgs e)

{

TextBox textBox = sender as TextBox;

if (textBox != null)

{

if (e.Key == System.Windows.Input.Key.Enter)

{

textBox.GetBindingExpression(TextBox.TextProperty).UpdateSource();

}

public class SaveCommand : FixedDocumentViewerCommandBase

{

public SaveCommand(FixedDocumentViewerBase fixedDocumentViewerBase)

: base(fixedDocumentViewerBase)

{

}

public override void Execute(object parameter)

{

Microsoft.Win32.SaveFileDialog dialog = new Microsoft.Win32.SaveFileDialog();

dialog.Filter = "PDF files (*.pdf)|*.pdf";

bool? result = dialog.ShowDialog();

if (result.HasValue && result.Value)

{

using (Stream stream = File.OpenWrite(dialog.FileName))

{

PdfFormatProvider provider = new PdfFormatProvider();

provider.Export(this.Viewer.Document, stream);

}

public class CustomCommandDescriptors : DefaultCommandDescriptors

{

private readonly CommandDescriptor saveCommandDescriptor;

public CommandDescriptor SaveCommandDescriptor

{

get

{

return this.saveCommandDescriptor;

}

public CustomCommandDescriptors(FixedDocumentViewerBase fixedDocumentViewer) : base(fixedDocumentViewer)

{

this.saveCommandDescriptor = new CommandDescriptor(new SaveCommand(fixedDocumentViewer));

}

Any insight as to why these documents are being exported sans page content would be appreciated.

Thanks!

PDFViewer

answered on 31 Jan 2017

7 answers

265 views

Binding errors on viewDefinitions' titles

Hello,

I noticed some binding errors in my output window that I could not explain at first:

System.Windows.Data Warning: 40 : BindingExpression path error: 'Title' property not found on 'object' ''String' (HashCode=1191344071)'. BindingExpression:Path=Title; DataItem='String' (HashCode=1191344071); target element is 'ContentPresenter' (Name='Content'); target property is 'ResourceKey' (type 'String')

after some meddling around, I finally found out that what was causing those errors where the viewDefinitions in the ScheduleView object.

it appears that I always have as many binding errors as viewDefinitions, no matter how many viewDefinitions I add to the object. So I'm guessing something is wrong with the way the viewDefinition's Title property is bound in the template. (I add "blank" viewDefinitions, with nothing set, not even the title, and I get this error. NB: the title seems to be displayed correctly, though...)

can you confirm this? or is this something on my side that I have not understood ?

ScheduleView

answered on 31 Jan 2017

1 answer

130 views

Search as you type - dynamic objects

Hi everyone,
we use a collection with dynamic objects which is binded to a RadGridView.
All colums and rows are shown correctly but unfortunatly the integrated search function (ctrl + f) does not search within attributes which are added dyanmically to the objects.
It works only for attributes which are directly implemented.

Is it a common behaviour of the search function or may be a bug \ missing feature?

Thank you for your help!

GridView

answered on 31 Jan 2017

1 answer

395 views

[Solved] Binding to DeleteButton Visibility

Hi my appointments have a active flag and when it's false, I would like the delete button to hide. I was reading that I should edit the schedule view xaml code but my bindings aren't correct. Any ideas?

<telerik:RadButton x:Name="DeleteButton"

Style="{StaticResource DeleteButtonStyle}"

Command="{x:Static local:RadScheduleViewCommands.DeleteAppointment}"

ClickMode="Press"

CommandParameter="{Binding RelativeSource={RelativeSource TemplatedParent}}"

Visibility="{Binding Active, Converter={StaticResource BooleanToVisibilityConverter}}"

IsTabStop="False" />

ScheduleView

answered on 31 Jan 2017

5 answers

284 views

Calculator Picker and decimal places

Is there a way to get the calculator picker to display 1.00 instead of just 1? I want to use it to display money values and 1.00 feels better than just 1.

Calculator

answered on 30 Jan 2017

3 answers

158 views

Error AsyncSqlGeospatialDataReader

Hi,

I have successfully used the AsyncSqlGeospatialDataReader to read shape data stored in a geometry column in SQL. I first read the geometry objects into a local collection and then assign that collection to the reader

var readerRail = new Telerik.Windows.Controls.Map.SqlGeospatialDataReader();

readerRail.Source = RailShapes;

readerRail.ToolTipFormat = "{SegmentLabel}";

readerRail.GeospatialPropertyName = "ShapeWKT";

readerRail.PreviewReadCompleted += readerRail_PreviewReadCompleted;

However, while this has worked on three previous collections on this specific one I get a "Non-static method requires a target" error. It seems as if some of the shape data must then be an issue but I have no idea where to start looking.

PS: SQL Management studio can query the data and display it

Map

answered on 30 Jan 2017

1 answer

230 views

RadPane not visible in WPF shell

Hi Team,

I'm just trying to insert a telerik docking Control, but it's not visible in the designer.

Code:

<telerik:RadDocking MinHeight="70" Margin="2,2,2,2" Height="100" Width="1300" Background="#E5E5E5" Grid.Row="2" Grid.Column="0" Grid.ColumnSpan="2" >
<telerik:RadDocking.DocumentHost>
<telerik:RadDockPanel>
<telerik:RadPaneGroup>
<telerik:RadPane Header="Docking">
<TextBlock Text="HOIxhskaxhksaj"/>
</telerik:RadPane>
</telerik:RadPaneGroup>
</telerik:RadDockPanel>
</telerik:RadDocking.DocumentHost>
</telerik:RadDocking>

Docking

answered on 30 Jan 2017

1 answer

106 views

Droping files to a RadDocking/DocumentHost

Hi, I have a wpf application which main area is RadDocking control with DocumentHost and so on. Actually it is Tab MDI application based on RadDocking. I would like to drag and drop files to this area of the application from windows explorer. For RadDocking I can handle PreviewDrop event, but Drop event is not raised. Feedback event is not raised to (for custom visual cursor). I tried to work with DragDropManager but got same behavior. Allow drop is set true for RadDocking control and qindow as well. Solutions?

Thanks,

Vladimir

DragAndDrop

answered on 30 Jan 2017

4 answers

278 views

[Solved] hide the scroll bars in RadCartesianChart

Hello.
I use the <telerik:ChartPanAndZoomBehavior DragMode="Pan" PanMode="Both" ZoomMode="Both" /> for scaling the RadCartesianChart.
How I can hide the scroll bars?

ChartView

answered on 27 Jan 2017

1 answer

140 views

RadCartesianChart divide by zero exception

Hi I'm using the RadCartesianChart to plot multiple series of data.

When the data range is small, I receive a divide by zero exception.

01.<telerik:RadCartesianChart Name="GraphSeriesChart" Grid.Row="2" Margin="10" Background="LightGray" >

02.

03. <telerik:RadCartesianChart.Behaviors >

04. <telerik:ChartPanAndZoomBehavior ZoomMode="Both" DragMode="Pan" PanMode="Both" />

05. </telerik:RadCartesianChart.Behaviors>

06.

07. <telerik:RadCartesianChart.HorizontalAxis >

08. <telerik:DateTimeCategoricalAxis LabelFormat="HH:mm:ss" MajorTickInterval="250" LabelFitMode="MultiLine" />

09. </telerik:RadCartesianChart.HorizontalAxis>

10.

11. <telerik:RadCartesianChart.VerticalAxis >

12. <telerik:LinearAxis HorizontalLocation="Left" Visibility="Visible" />

13. </telerik:RadCartesianChart.VerticalAxis>

14.

15. <telerik:RadCartesianChart.SeriesProvider >

16. <telerik:ChartSeriesProvider Source="{Binding TECSeriesSelected}" >

17. <telerik:ChartSeriesProvider.SeriesDescriptors >

18. <telerik:CategoricalSeriesDescriptor ValuePath="Value" CategoryPath="Time" >

19. </telerik:CategoricalSeriesDescriptor>

20. </telerik:ChartSeriesProvider.SeriesDescriptors>

21. </telerik:ChartSeriesProvider>

22. </telerik:RadCartesianChart.SeriesProvider>

23.

24. <telerik:RadCartesianChart.Grid >

25. <telerik:CartesianChartGrid MajorLinesVisibility="XY" >

26. <telerik:CartesianChartGrid.MajorXLineStyle >

27. <Style TargetType="Line" >

28. <Setter Property="Stroke" Value="Gray" />

29. </Style>

30. </telerik:CartesianChartGrid.MajorXLineStyle>

31. <telerik:CartesianChartGrid.MajorYLineStyle >

32. <Style TargetType="Line" >

33. <Setter Property="Stroke" Value="Gray" />

34. </Style>

35. </telerik:CartesianChartGrid.MajorYLineStyle>

36. </telerik:CartesianChartGrid>

37. </telerik:RadCartesianChart.Grid>

38. </telerik:RadCartesianChart>

01.TECSeriesSelected.Clear();

02.

03.TECSeriesSelected.Add(new RadObservableCollection<DataPoint>(new DataPoint[3]));

04.TECSeriesSelected.Add(new RadObservableCollection<DataPoint>(new DataPoint[3]));

05.

06.TECSeriesSelected[0][0] = new DataPoint();

07.TECSeriesSelected[0][0].Value = 0;

08.TECSeriesSelected[0][0].Time = new DateTime(0);

09.

10.TECSeriesSelected[0][1] = new DataPoint();

11.TECSeriesSelected[0][1].Value = 0;

12.TECSeriesSelected[0][1].Time = new DateTime(10);

13.

14.TECSeriesSelected[0][2] = new DataPoint();

15.TECSeriesSelected[0][2].Value = 0;

16.TECSeriesSelected[0][2].Time = new DateTime(20);

17.

18.TECSeriesSelected[1][0] = new DataPoint();

19.TECSeriesSelected[1][0].Value = 2.75E-28F;

20.TECSeriesSelected[1][0].Time = new DateTime(0);

21.

22.TECSeriesSelected[1][1] = new DataPoint();

23.TECSeriesSelected[1][1].Value = 2.75E-28F;

24.TECSeriesSelected[1][1].Time = new DateTime(10);

25.

26.TECSeriesSelected[1][2] = new DataPoint();

27.TECSeriesSelected[1][2].Value = 2.75E-28F;

28.TECSeriesSelected[1][2].Time = new DateTime(20);

Is there a way to fix this issue?

ChartView

answered on 27 Jan 2017