Questions on UI for WPF Forum

4 answers

298 views

RadPane's Close event when a modelView used by multiple views

I am failry new to telerik and WPF and MVVM, so please forgive my lack on knowledge, I have a Shell that that uses directory searching to find modules that I can load into its regions, Each module has a few views that are have top level elementa radSplitContainer, A few of those views can be opened at one time and each has custom logic when the RapPane is closed

What I did was used event aggregation to publish the closed event, but I cant find a way to know what view called the close event without creating a reference to my view inside my viewmodell. I have tried

private void DockMain_PreviewClose(object sender, Telerik.Windows.Controls.Docking.StateChangeEventArgs e) { if (e.Panes != null && e.Panes.Count() > 0 && e.Panes.ToList()[0].GetType() == typeof(RadPane)) { if (_mainviewmodel != null) { var test = e.Panes.ToList()[0].ParentOfType<RadSplitContainer>(); var bol = test.GetType().IsAssignableFrom(typeof(IModuleView)); //var test = e.Panes.ToList()[0].ParentOfType<RadSplitContainer>(); _mainviewmodel.OnPreviewClose(e.Panes.ToList()[0].ParentOfType<RadSplitContainer>() as IModuleView);//publish teh subscriber event } } }

to try and create an interface that both the view and viewModel would implement, but i can never find an object that supports the interface I just created or anyway I can tap into the close event from the view instead of from the RapDock control.

Docking

answered on 25 Oct 2016

3 answers

158 views

OpenOffice spell checking

Is there any example which demonstrates how to create and work with a custom third-party spell checker using Open Office?

I tried https://github.com/telerik/xaml-sdk/tree/8a76eafd48278d8278b4b61d1c2aeb3c0ac8750d/RichTextBox/NHunspellSpellChecking, but it is not working properly (all words are marked as incorrect). I used en_US.aff and en_US.dic files from en_us.oxt (http://extensions.openoffice.org/en/project/us-english-spell-checking-dictionary).

Thanks

Beata

RichTextBox

answered on 25 Oct 2016

2 answers

241 views

Free components.

Is it possible to use your components are free for individual developers like syncfusion? For example WPF. Not everyone can buy these components to create a small application.

General Discussions

answered on 24 Oct 2016

0 answers

130 views

Specific cell Tooltip

Hello Telerik,

I want to display a ToolTip when mouse passing on specific cell (pink background cell), but I don't find the corresponding event.

I tried to use the CurrentCell but it's every time null. After, I tried to use the casted row to use its Properties Item CurrentCell to get attribut ('IsDiscontinuite') but the result it's every time true.

My work :

//Every Time null

if (((RadGridView)sender).CurrentCell.Background == new SolidColorBrush(Color.FromArgb(255, 255, 0, 255)))

//Every Time "True"

if (((MesureDynamicRow)((RadGridView)sender).CurrentCellInfo.Item).Properties.First().CoupureHisto)

So, I want to know what is the find event for this problem ?

Thank you very much !

Valentin.

GridView

asked on 24 Oct 2016

2 answers

146 views

[Solved] Handling click of connector

I would like to handle a double click event on a connector. For shapes there is a OnShapeDoubleClicked, but I can't seem to find a way of handling the double click of an connector.

I tried handling the double-click event of the diagram itself, but can't seem to find the connector at the click location.

Is there an easy way to achieve this?

Diagram

answered on 24 Oct 2016

7 answers

357 views

Help with no-mask

This is my first time using the masked input and I could use some help. I don't want the placeholder, so I'm using Mask="". In this example, I want to restrict to positive integers only (or blank if it's an optional input). I can restrict the numeric version to digits only, but how do I prevent the negative sign?

I would actually prefer to use the normal masked input and simply limit it to the characters 0-9. However when I use Mask="", I have not been able to restrict the inputs using the FormatString. It's still allowing me to type anything.

MaskedInput (Numeric, DateTime, Text, Currency)

answered on 24 Oct 2016

7 answers

252 views

XamlParseException Cannot find source for binding with reference (BindingExpression:Path=IsPinned)

I have the following exception popping up from time to time when I scroll fast or use sliders in RadGridView.

Exception: Exception thrown: 'System.Xaml.XamlParseException' in #####.exe

("Cannot find source for binding with reference 'RelativeSource FindAncestor, AncestorType='Telerik.Windows.Controls.GridView.GridViewRow', AncestorLevel='1''. BindingExpression:Path=IsPinned; DataItem=null; target element is 'GridViewPinButton' (Name=''); target property is 'IsPinned' (type 'Boolean')"). Exception thrown: 'System.Xaml.XamlParseException' in #####.exe ("Cannot find source for binding with reference 'RelativeSource FindAncestor, AncestorType='Telerik.Windows.Controls.GridView.GridViewRow', AncestorLevel='1''. BindingExpression:Path=IsPinned; DataItem=null; target element is 'GridViewPinButton' (Name=''); target property is 'IsPinned' (type 'Boolean')") 80.33s [15528] <No Name>

I simply host RadGridView in UserControl:

<telerik:RadGridView ItemsSource="{Binding #######}"
 IsReadOnly="True"
 RowIndicatorVisibility="Collapsed"
 AutoGenerateColumns="False"
 ShowGroupPanel="False"
 GridLinesVisibility="Both"
 ClipboardCopyMode="All"
 SelectionMode="Extended"
 FrozenColumnCount="1"
 CanUserFreezeColumns="False"
 Background="Transparent"
 >
 <telerik:RadGridView.Columns>

....

GridView

answered on 24 Oct 2016

3 answers

286 views

RadPdfViewer.Print on Windows 10 - PDF goes to "Spooling" and disappears.

Hello,

We are facing this strange issue with PDFViewer.Print functionality on Windows 10 only.

Attached is the sample using latest Telerik dlls (Telerik_UI_for_WPF_2015_2_728_Dev.msi). The problem is - once we print - it goes into the Printing queue and shows "Spooling" but does not print - rather disappears after some time. Please advise.

class Program

{

/// <summary>

/// Main method.

/// </summary>

/// <param name="args">The args.</param>

[STAThread]

static void Main(string[] args)

{

string fileName = "CMI9063.pdf";

if ((args != null) && (args.Length > 0))

{

fileName = args[0];

}

// Load the PDF file.

byte[] buffer = LoadPdfFile(fileName) ?? new byte[] { };

using (MemoryStream stream = new MemoryStream(buffer))

{

PrintDialog printDialog = new PrintDialog { UserPageRangeEnabled = true };

if (printDialog.ShowDialog() == true)

{

RadPdfViewer radPdfViewer = new RadPdfViewer { DefaultFormatProviderSettings = FormatProviderSettings.ReadOnDemand };

radPdfViewer.ClearDocument();

radPdfViewer.Document = new PdfFormatProvider(stream, FormatProviderSettings.ReadOnDemand).Import();

radPdfViewer.Print(printDialog, PrintSettings.Default);

//System.Windows.MessageBox.Show("Successfully print to \"" + printDialog.PrintQueue.FullName + "\"", "Print", System.Windows.MessageBoxButton.OK, System.Windows.MessageBoxImage.Information);

}

private static byte[] LoadPdfFile(string filePath)

{

byte[] buffer;

string folder = Directory.GetCurrentDirectory();

if (!filePath.StartsWith(folder))

{

filePath = Path.Combine(folder, filePath);

}

//load from physical path

if (File.Exists(filePath))

{

using (FileStream fs = new FileStream(filePath, FileMode.Open))

{

buffer = new byte[fs.Length];

fs.Read(buffer, 0, buffer.Length);

}

else

{

return null;

}

return buffer;

}

PDFViewer

answered on 24 Oct 2016

4 answers

158 views

CellTemplate horizontal scrolling is very slow.

If I use CellTemplate and then horizontally scroll so column isn't visible then scroll back I have a noticeable slowdown (jerk) in scrolling.

If I replace this code with using DataMemberBinding without CellTemplate I don't see this problem.

Any advice on how to fix this problem?

(saw some old threads about it but not sure what's the resolution).

GridView

answered on 24 Oct 2016

1 answer

110 views

Multiple Sorting

Hi,

i use a RadGridView bound to a ObservableCollection<Calls> with some Columns like Name, Number, Date, Time,...

The Column "Date" ist declared as DateTime in my ViewModel and the Column "Time" is a string. I have to sort my
Collection by Date and Time:

Comin from log:

Prusik#4862416#8:30#20.10.2016#incoming.png#(284,1,0)
Prusik#4862416#8:40#20.10.2016#incoming.png#(284,1,0)
Prusik#4862416#8:50#20.10.2016#incoming.png#(284,1,0)
Golf & Thermenresort Stegersbach GmbH#06803280292#14:00#19.10.2016#incoming.png#(16364,0,0)
Golf & Thermenresort Stegersbach GmbH#06803280292#13:00#19.10.2016#incoming.png#(16364,0,0)

Should be sorted to

Prusik#4862416#8:50#20.10.2016#incoming.png#(284,1,0)
Prusik#4862416#8:40#20.10.2016#incoming.png#(284,1,0)
Prusik#4862416#8:30#20.10.2016#incoming.png#(284,1,0)
Golf & Thermenresort Stegersbach GmbH#06803280292#14:00#19.10.2016#incoming.png#(16364,0,0)
Golf & Thermenresort Stegersbach GmbH#06803280292#13:00#19.10.2016#incoming.png#(16364,0,0)

What is to do to geht thisrunning?

And i also want to insert a new incoming call on top of the RadGridView?

Thanks a lot
Best Regards
Rene

GridView

answered on 24 Oct 2016