Questions on UI for WPF Forum

1 answer

316 views

How can I disable options from the context menu of a table?

When right clicking on a table inside the RichTextBox, a context menu appears. How can I remove/disable from this context menu the following options:
merge cells, table boders, autofit, table properties.

Thanks!

RichTextBox

answered on 02 Mar 2015

7 answers

299 views

How to (auto) resize a GridViewColumn with multiple buttons which visibility is bound to view model?

Hi,

I have a RadGridView containing a GridViewColumn which contains four 'action' buttons.

<telerik:GridViewColumn Header="{x:Static commonResources:CommonResources.ActionColumn}" >

<telerik:GridViewColumn.CellTemplate>

<DataTemplate>

<StackPanel Orientation="Horizontal">

<bc:RadGridViewActionButton NormalImage="../Images/dgy_040_edit_normal.png"

MouseOverImage="../Images/bk_040_edit_normal.png"

Visibility=

"{Binding Path=DataContext.IsModifySupported, RelativeSource={RelativeSource FindAncestor, AncestorType={x:Type telerik:RadGridView}}, Converter={StaticResource BooleanToVisibilityConverter}}"

ToolTip=

"{Binding Path=DataContext.ModifyCommandToolTip, RelativeSource={RelativeSource FindAncestor, AncestorType={x:Type telerik:RadGridView}}}"

Command=

"{Binding Path=DataContext.ModifyCommand, RelativeSource={RelativeSource FindAncestor, AncestorType={x:Type telerik:RadGridView}}}"

/>

<bc:RadGridViewActionButton NormalImage="../Images/dgy_200_details_normal.png"

MouseOverImage="../Images/bk_200_details_normal.png"

Visibility=

"{Binding Path=DataContext.IsViewSupported, RelativeSource={RelativeSource FindAncestor, AncestorType={x:Type telerik:RadGridView}}, Converter={StaticResource BooleanToVisibilityConverter}}"

ToolTip=

"{Binding Path=DataContext.DetailsCommandToolTip, RelativeSource={RelativeSource FindAncestor, AncestorType={x:Type telerik:RadGridView}}}"

Command=

"{Binding Path=DataContext.DetailsCommand, RelativeSource={RelativeSource FindAncestor, AncestorType={x:Type telerik:RadGridView}}}"

/>

<bc:RadGridViewActionButton NormalImage="../Images/dgy_030_delete_normal.png"

MouseOverImage="../Images/bk_030_delete_normal.png"

Visibility=

"{Binding Path=DataContext.IsDeleteSupported, RelativeSource={RelativeSource FindAncestor, AncestorType={x:Type telerik:RadGridView}}, Converter={StaticResource BooleanToVisibilityConverter}}"

ToolTip=

"{Binding Path=DataContext.DeleteCommandToolTip, RelativeSource={RelativeSource FindAncestor, AncestorType={x:Type telerik:RadGridView}}}"

Command=

"{Binding Path=DataContext.DeleteCommand, RelativeSource={RelativeSource FindAncestor, AncestorType={x:Type telerik:RadGridView}}}"

/>

<bc:RadGridViewActionButton NormalImage="../Images/dgy_028_copy_normal.png"

MouseOverImage="../Images/bk_028_copy_normal.png"

Visibility=

"{Binding Path=DataContext.IsCopySupported, RelativeSource={RelativeSource FindAncestor, AncestorType={x:Type telerik:RadGridView}}, Converter={StaticResource BooleanToVisibilityConverter}}"

ToolTip=

"{Binding Path=DataContext.CopyCommandToolTip, RelativeSource={RelativeSource FindAncestor, AncestorType={x:Type telerik:RadGridView}}}"

Command=

"{Binding Path=DataContext.CopyCommand, RelativeSource={RelativeSource FindAncestor, AncestorType={x:Type telerik:RadGridView}}}"

/>

</StackPanel>

</DataTemplate>

</telerik:GridViewColumn.CellTemplate>

</telerik:GridViewColumn>

In the view model I set the visibility of the 'action' buttons.

This works well in the sense that the buttons are displayed or hidden in the grid.

But the 'Action' column with always takes into account the total width of all four buttons even when some of them are not displayed.

How can I get the GridViewColumn to only take up as much space as the actual displayed buttons?

Thanks,
Peter

GridView

answered on 02 Mar 2015

4 answers

165 views

Mail Merge - PDF Export - Watermark problem

test

RichTextBox

answered on 02 Mar 2015

1 answer

1.2K+ views

Change icon on mouse over

Hi,

My question is very very very simple ..... and though I'm struggling achieving this.
All I want, is a menu item being an image (via the ICON property) and on MouseOver event, change that picture with another one...... It's that easy but can't make it happen. Why the hell is this so complex ?

Anyone to help ?

01.<telerik:RadMenu Grid.Row="2" Grid.Column="1" Width="40" HorizontalAlignment="Right" Background="Transparent" ClickToOpen="True">

02. <telerik:RadMenuItem Header="" Width="40" Height="40" ToolTip="Settings">

03. <telerik:RadMenuItem.Icon>

04. <Image x:Name="btnSetting" Source="Resources/setting.png" Stretch="UniformToFill">

05. </Image>

06. </telerik:RadMenuItem.Icon>

07. <Trigger Property="IsMouseOver" Value="true">

08. <Setter TargetName="btnSetting" Property="Source" Value="Resources/setting-hover.png"></Setter>

09. </Trigger>

10. </telerik:RadMenuItem>

11.</telerik:RadMenu>

On compile, I get an error msg saying IsMouseOver is not a valid Event and if I change this into "Property="Mouse.MouseOver" then it says not recognized or not accessible ??????

Cheers,

Chris

Menu

answered on 02 Mar 2015

1 answer

42 views

X-Axis Labels Overlapping Issue (see screen cap)

Hi,

Viewing the screen cap you can see the issue I am having with the labels overrunning one another. Is there a way to have the label expand to amount of chart items?

Thanks,

Tony

Chart

answered on 02 Mar 2015

2 answers

314 views

X-Axis Labels Overlapping Issue (see screen cap)

I'm using the RadChart and right now am unable to migrate to the RadChartView.

Viewing the attached screen capture, what is my best option for sorting this out?

Thanks,

Tony

Chart

answered on 02 Mar 2015

2 answers

649 views

Get values of the selected row

Hi I have a RadGridView. The ItemSource is a DataView based on a DataTable. The GridView Property AutoGenerateColumns = "False".

XAML:
<telerik:RadGridView.Columns>
<telerik:GridViewDataColumn x:Name="VisitNumber" DataMemberBinding="{Binding VisitNumber}" Header="Fallnummer" Width="120"/>
<telerik:GridViewDataColumn x:Name="LastName" DataMemberBinding="{Binding LastName}" Header="Nachname" Width="200"/>
<telerik:GridViewDataColumn x:Name="FirstName" DataMemberBinding="{Binding FirstName}" Header="Vorname" Width="150"/>
</telerik:RadGridView.Columns>

How can I retrieve the values of the selected row using C # code?

GridView

answered on 02 Mar 2015

1 answer

132 views

Mail Merge - PDF Export - Watermark problem

Hello all,
I have the following problem when using the mail merge:
If I do not have watermark in the document, MailMerge and Export to PDF performs correctly.
Here is how I do the MailMerge (not full code):

//loop throught documents

do

{

RadDocument currentDocument = document.MailMergeCurrentRecord();

if (currentDocument != null)

{

//freeze images

foreach (var image in currentDocument.EnumerateChildrenOfType<ImageInline>())

image.ImageSource.Freeze();

//Floating images

foreach (var image in currentDocument.EnumerateChildrenOfType<FloatingImageBlock>())

image.ImageInline.ImageSource.Freeze();

lock (baton)

documentQueue.Enqueue(currentDocument);//add new document to a queue for further processing

currentDocument = null;

}

} while (document.MailMergeDataSource.MoveToNext());

and here is how I export to PDF (into a stream):

public static async Task<Stream> ExportToPDF(RadDocument document)

{

PdfFormatProvider provider = new PdfFormatProvider();

Stream output = new MemoryStream();

await StartSTATask(() =>

{

provider.Export(document, output);

});

output.Position = 0;

return output;

}

As I have mentioned, the problem occurs when I have a Watermark in my document. Even though Mail Merge performs correctly, the document crashes on the
provider.Export(document, output) saying that the current thread cannot access object as different thread owns it.

Here is full error report:

at System.Windows.Threading.DispatcherObject.VerifyAccess()

at System.Windows.Media.Imaging.BitmapSource.get_PixelWidth()

at System.Windows.Media.Imaging.WriteableBitmap.InitFromBitmapSource(BitmapSource source)

at Telerik.Windows.Media.Imaging.RadBitmap..ctor(BitmapSource image)

at Telerik.Windows.Documents.FormatProviders.Pdf.PdfDocumentExporter.SetImageAlpha(WatermarkImageSettings imageSettings, Byte alpha)

at Telerik.Windows.Documents.FormatProviders.Pdf.PdfDocumentExporter.DrawWatermark(Header header, SectionLayoutBox sectionBox, PdfContentsWriter writer)

at Telerik.Windows.Documents.FormatProviders.Pdf.PdfDocumentExporter.ExportHeadersAndFooters(SectionLayoutBox sectionBox, PdfContentsWriter writer)

at Telerik.Windows.Documents.FormatProviders.Pdf.PdfDocumentExporter.ExportPage(SectionLayoutBox sectionBox, PdfContentsWriter writer)

at Telerik.Windows.Documents.FormatProviders.Pdf.PdfDocumentExporter.<>c__DisplayClass1.<Export>b__0(PdfContentsWriter contentsWriter)

at Telerik.Windows.Documents.FormatProviders.Pdf.RadPdf.PdfContents.WriteContents(PdfWriter writer)

at Telerik.Windows.Documents.FormatProviders.Pdf.RadPdf.PdfStream.WriteToCore(PdfWriter writer)

at Telerik.Windows.Documents.FormatProviders.Pdf.RadPdf.PdfObject.WriteTo(PdfWriter writer)

at Telerik.Windows.Documents.FormatProviders.Pdf.RadPdf.PdfWriter.WritePdfObject(PdfObject obj)

at Telerik.Windows.Documents.FormatProviders.Pdf.PdfDocumentExporter.Export()

at Telerik.Windows.Documents.FormatProviders.Pdf.PdfFormatProvider.Export(RadDocument document, Stream output)

at IP_DocumentProcessor.MailMerge.IP_MailMerge.<>c__DisplayClass14.<ExportToPDF>b__13() in d:\VB Projects + Silverlight\VS2012APP\IP_DocumentProcessor\IP_DocumentProcessor\MailMerge\IP_MailMerge.cs:line 476

at IP_DocumentProcessor.MailMerge.IP_MailMerge.<>c__DisplayClass1a.<StartSTATask>b__19() in d:\VB Projects + Silverlight\VS2012APP\IP_DocumentProcessor\IP_DocumentProcessor\MailMerge\IP_MailMerge.cs:line 500

--- End of stack trace from previous location where exception was thrown ---

at System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess(Task task)

at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task)

at System.Runtime.CompilerServices.TaskAwaiter`1.GetResult()

at IP_DocumentProcessor.MailMerge.IP_MailMerge.<StartSTATask>d__1c.MoveNext() in d:\VB Projects + Silverlight\VS2012APP\IP_DocumentProcessor\IP_DocumentProcessor\MailMerge\IP_MailMerge.cs:line 510

--- End of stack trace from previous location where exception was thrown ---

at System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess(Task task)

at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task)

at IP_DocumentProcessor.MailMerge.IP_MailMerge.<ExportToPDF>d__16.MoveNext() in d:\VB Projects + Silverlight\VS2012APP\IP_DocumentProcessor\IP_DocumentProcessor\MailMerge\IP_MailMerge.cs:line 474

--- End of stack trace from previous location where exception was thrown ---

at System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess(Task task)

at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task)

at System.Runtime.CompilerServices.TaskAwaiter`1.GetResult()

at IP_DocumentProcessor.MailMerge.IP_MailMerge.<GenerateStreams>d__7.MoveNext() in d:\VB Projects + Silverlight\VS2012APP\IP_DocumentProcessor\IP_DocumentProcessor\MailMerge\IP_MailMerge.cs:line 282

--- End of stack trace from previous location where exception was thrown ---

at System.Runtime.CompilerServices.AsyncMethodBuilderCore.<ThrowAsync>b__1(Object state)

at System.Threading.ExecutionContext.RunInternal(ExecutionContext executionContext, ContextCallback callback, Object state, Boolean preserveSyncCtx)

at System.Threading.ExecutionContext.Run(ExecutionContext executionContext, ContextCallback callback, Object state, Boolean preserveSyncCtx)

at System.Threading.QueueUserWorkItemCallback.System.Threading.IThreadPoolWorkItem.ExecuteWorkItem()

at System.Threading.ThreadPoolWorkQueue.Dispatch()

Your help would be highly appreciated as I don't know how to handle this problem.
Thank you.
Robert

RichTextBox

answered on 27 Feb 2015

1 answer

131 views

Centering SplitContainer

Hi,

I would like to know how it's possible to dock center a SplitContainer?

Thank's
Alain

Docking

answered on 27 Feb 2015

8 answers

213 views

Tabular Layout / Multiple Root Nodes

Hi,

I looking for a kind of tabular layout.
The idea behind it is that in my data I know Row and Column and I want my diagram to look
something like in the attached images.

And I also need Multiple root items like showed on the second image.

The next thing is that I want to restrict node dragging to the matrix - inclusive position change (like drag drop in a treeview control for an example). But this is "enhanced" - my initial request is to generate the layout from data - just by knowing
a.) Node Position Row, Column
b.) Node connected to List of other Nodes

Is this possible - "out of the box" (or with little effort)?

Thanks
Manfred

Diagram

answered on 27 Feb 2015