Questions on UI for WPF Forum

3 answers

175 views

Hi every body...

In my application I have to make an InlineUIContainer (inserted within a table) as ReadOnly. To achieve this requirement I tried ReadOnlyRangeStart and ReadOnlyRangeEnd (as shown in the attached code). I also tried to InsertReadOnlyRange around the table using DocumentPosition (not shown in the attached code). In both cases the following error is thrown:

"An unhandled exception of type 'System.StackOverflowException' occurred in mscorlib.dll"

Is not possible to make InlineUIContainer as ReadOnly? If so; is there any workaround?

Any Help Will Be Greatly Appreciated...

Note: the cause why I used TextBlocks instead of just adding new span to the paragraph; is that I have to make Text and image tightly grouped together; so that if they come across end of the page (and there is no enough space to them), then they move together to a new page. If there is a better solution to this requirement, it will be welcomed.

Private Function GetCenterManagerTable(ByVal mainDocument As RadDocument, ByVal FMMSContext As FMMS.BusinessObjects.Models.FMMSEntities) As Table

Dim _table As New Table With {.Borders = New TableBorders(New Model.Border(1, BorderStyle.Single, Colors.Black)),

.FlowDirection = GetFlowDirection(),

.PreferredWidth = New TableWidthUnit(TableWidthUnitType.Fixed, mainDocument.SectionDefaultPageSize.Width - 115),

.HorizontalAlignment = RadHorizontalAlignment.Center,

.Tag = RequestTypes.WritingDraft}

Dim _row As New TableRow

Dim _cellReviewer As New TableCell With {.TextAlignment = RadTextAlignment.Center,

.Tag = RequestTypes.WritingDraft}

Dim _cellManager As New TableCell With {.TextAlignment = RadTextAlignment.Center,

.Tag = Departments.CenterManager,

.PreferredWidth = New TableWidthUnit(TableWidthUnitType.Fixed, 350)}

Dim _paragReviewer As New Paragraph With {.SpacingAfter = 0, .LineSpacingType = LineSpacingType.AtLeast, .LineSpacing = 0}

Dim _paragManager As New Paragraph With {.SpacingAfter = 0, .LineSpacingType = LineSpacingType.AtLeast, .LineSpacing = 0}

_table.Rows.Add(_row)

_row.Cells.Add(_cellReviewer)

_row.Cells.Add(_cellManager)

_cellReviewer.Blocks.Add(_paragReviewer)

_cellManager.Blocks.Add(_paragManager)

'Manager

Dim ManagerSignatureUIContainer As New InlineUIContainer With {.Width = 349, .Height = 200}

Dim stckMain As New StackPanel With {.Height = 150}

stckMain.Measure(New Size(350, 200))

Dim txbName As New TextBlock With

{.Text = ManagerData.Name, .FontFamily = PtHeadingFamily, .FontSize = 16, .TextWrapping = TextWrapping.Wrap, .HorizontalAlignment = HorizontalAlignment.Center}

Dim imgManagerSignature As New Image With {.Name = "imgManagerSignature", .Width = 120, .Stretch = Stretch.Uniform}

imgManagerSignature.Measure(New Size(120, 30))

Dim txbSignatureDate As New TextBlock With {.Name = "txbSignatureDate", .FontFamily = New FontFamily("Times New Roman"), .FontSize = 8, .HorizontalAlignment = HorizontalAlignment.Center}

Dim txbJob As New TextBlock With

{.Text = ManagerData.Job, .FontFamily = PtHeadingFamily, .FontSize = 16, .TextWrapping = TextWrapping.Wrap, .HorizontalAlignment = HorizontalAlignment.Center}

stckMain.Children.Add(txbName)

stckMain.Children.Add(imgManagerSignature)

stckMain.Children.Add(txbSignatureDate)

stckMain.Children.Add(txbJob)

ManagerSignatureUIContainer.UiElement = stckMain

Dim rangeStart As New ReadOnlyRangeStart()

Dim rangeEnd As New ReadOnlyRangeEnd()

rangeEnd.PairWithStart(rangeStart)

_paragManager.Inlines.Add(rangeStart)

_paragManager.Inlines.Add(ManagerSignatureUIContainer)

_paragManager.Inlines.Add(rangeEnd)

Return _table

End Function

RichTextBox

answered on 16 Jan 2018

3 answers

243 views

QueryableCollectionView item type

When using QueryableCollectionView, it takes an IEnumerable as source. Are there any further requirements on the type of the individual items?

My input data is an object-array, and in the code I'm currently investigating a DataTable is created and its DefaultView is used as input to the QueryableCollectionView. I was wondering if I could just skip the DataTable and just use a List<object[]> instead. Apparenty not, but I'm curious as to why?

GridView

answered on 16 Jan 2018

1 answer

127 views

Tracking Changes + Spell Check issue

When you have both change tracking and spell check enabled, if you delete a word and type another word directly next to it, spell check incorrectly sees this as a misspelled word. I attached a screenshot of the issue. Is there a way to work around this?

RichTextBox

answered on 16 Jan 2018

1 answer

112 views

Export cartesianchart to RadDocument in code behind

Hi

I need to create Windows service,which creates the cartesianChart with data and placed it to the radDocument with additional controls (logo, titles, table)

If I add series and other fields (logo, texts,..) first to the visual element like stackpanel, and then creating a RadDcoument from there, it works ok

But can I do this without placing chart first to the visual element? If I try to do this, it's throw "The parameter value must be greater than zero.
Parameter name: pixelWidth" error

If this can be done, can you provide an example?

Regards,

Auvo

ChartView

answered on 16 Jan 2018

0 answers

340 views

"TypeInitializationException" or "FileFormatException" error in a WPF application

Symptoms:

Most controls from the UI for WPF are affected after you install January 9, 2018, .NET Security and Quality Rollup (KB4055002). Applications that request a fallback font or a character that is not included in the currently selected font return the following error messages:
System.TypeInitializationException
“FileFormatException: No FontFamily element found in FontFamilyCollection that matches current OS or greater: Win7SP1”.
Inner exception originates from: CompositeFontParser

Solution 1:

Microsoft has released an update which fixes the issue. More information about it you can find here: Description of the Security and Quality Rollup for .NET Framework 4.6, 4.6.1, 4.6.2, 4.7, and 4.7.1 for Windows 7 SP1 and Server 2008 R2 SP1 (KB 4074880).

Solution 2:

To keep .NET 4.7.1 installed and maintain protection against vulnerabilities that are addressed by the January security updates, uninstall the January .NET Framework Security and Quality Rollup (KB 4055002), and then install the January .NET Framework Security-Only Update (KB 4054183). To do this, follow these steps:

In Control Panel, open the Windows Update item, and then select View update history.
In the Review your update history list, locate and select Security Update for Microsoft .NET Framework 4.6, 4.6.1, 4.6.2, 4.7, 4.7.1 (KB4055002). Then, select Uninstall.
When you are prompted for confirmation to uninstall, select Yes.
Restart your computer if you are prompted to do this.
Download and install the Security Only update for .NET Framework 4.6, 4.6.1, 4.6.2, 4.7, and 4.7.1 for Windows 7 SP1 and Windows Server 2008 R2 SP1 and .NET Framework 4.6 for Windows Server 2008 SP2 (KB 4054183) for your operating system configuration from the following links:
Security Only update for .NET Framework 4.6, 4.6.1, 4.6.2, 4.7, and 4.7.1 for Windows 7 SP1 and Windows Server 2008 R2 SP1 for x86 systems (KB4054183)
Security Only update for .NET Framework 4.6, 4.6.1, 4.6.2, 4.7, and 4.7.1 on Windows 7 SP1 and Windows Server 2008 R2 SP1 for x64 systems (KB4055269)
Follow the installation prompts, and then restart your computer if you are prompted to do this.

Solution 3:

Roll back to the previous version of .NET Framework. To do this, follow these steps:

In Control Panel, open the Programs and Features item.
In the Uninstall or change a program list, locate and then select Microsoft .NET Framework 4.7.1, and then select Uninstall/Change.
Select Remove .NET Framework 4.7.1 from this computer, and then select Next.
Select Continue to confirm the uninstallation.
Select Finish after the uninstallation is finished.
Restart your computer if you are prompted to do this.

General Discussions

asked on 15 Jan 2018

1 answer

264 views

Radbutton with text and a dynamically coloring circle on it

Hi,

I have a requirement for which I need a button(radbutton) control with a label and a small circle. The circle should show a different color based on some other result returned from other data source. As per the documentation I understood like a button either can have a text label or an image on it, but not both. Can someone get me a sample project on how to achieve that. Please find the attached sample.

Buttons

answered on 15 Jan 2018

1 answer

366 views

Binding Command (MVVM) To RadCartesianChart

I have a RelayCommand in my ViewModel that I would like to bind to a left mouse click on any part of the ENTIRE chart area.

I have tried using an interaction and an EventToCommandBehavior, but I can't get any of them to fire.

The chart renders fine but the command (which is used in another ViewModel and works there) never fires (I set a breakpoint in the command body)

Here is the code for the chart and the relevant code of the ViewModel...Any help is appreciated.

protected DataPointMeasurementsViewModel()

{

GoToDetailsCommand = new RelayCommand(() => GoToDetails());

}

public RelayCommand GoToDetailsCommand { get; set; }

private void GoToDetails()

{

var viewModel = new DataPointDetailsChartPageViewModel(DataPointID);

IoC.Application.GoToPage(ApplicationPage.DataPointDetailsChartPage, viewModel);

}

<telerik:RadCartesianChart x:Name="radChart" Margin="0,0,0,0" Height="340">

<telerik:EventToCommandBehavior.EventBindings>

<telerik:EventBinding Command="{Binding GoToDetailsCommand}"

EventName="MouseLeftButtonDown" RaiseOnHandledEvents="True" />

</telerik:EventToCommandBehavior.EventBindings>

<telerik:RadCartesianChart.HorizontalAxis>

<telerik:DateTimeContinuousAxis

LabelInterval="{Binding ChartSettingsViewModel.LabelInterval}"

LabelFormat="{Binding ChartSettingsViewModel.LabelFormat}"

PlotMode="OnTicksPadded" >

</telerik:DateTimeContinuousAxis>

</telerik:RadCartesianChart.HorizontalAxis>

<telerik:RadCartesianChart.VerticalAxis>

<telerik:LinearAxis Title="{Binding SeriesTitle}">

</telerik:LinearAxis>

</telerik:RadCartesianChart.VerticalAxis>

<telerik:RadCartesianChart.Grid>

<telerik:CartesianChartGrid MajorLinesVisibility="Y" MajorYLineDashArray="3,4" />

</telerik:RadCartesianChart.Grid>

<telerik:RadCartesianChart.Series>

<chartView:LineSeries ItemsSource="{Binding Measurements}" Stroke="{Binding LineColor}">

<chartView:LineSeries.ValueBinding>

<telerik:PropertyNameDataPointBinding PropertyName="Value"/>

</chartView:LineSeries.ValueBinding>

<chartView:LineSeries.CategoryBinding>

<telerik:PropertyNameDataPointBinding PropertyName="LocalDateTime"/>

</chartView:LineSeries.CategoryBinding>

</chartView:LineSeries>

</telerik:RadCartesianChart.Series>

</telerik:RadCartesianChart>

ChartView

answered on 15 Jan 2018

1 answer

130 views

Multiple DateTimePickers to get a timespan

Hi -

My goal is to use two raddatetimepickers in a WPF application to get a start date/time and an end date/time user input. I haven't found a way to get two of these components on the same page - do I need to modify the culture or create them dynamically? I've looked into using other identifiers.

Any guidance would be appreciated

Thanks

DateTimePicker