Questions on UI for WPF Forum

1 answer

132 views

Get next/previous annotations on the same line (code sample)

I have modified some code so that you can get the Next & Previous Annotations ONLY if they exist on the same line as the caret.

Get Previous Same Line Annotation:

public static T GetPreviousSameLineAnnotationRangeStart<T>(this RadDocument document) where T : AnnotationRangeStart

{

//Document caret position

DocumentPosition caretPosition = new DocumentPosition(document.CaretPosition);

//Caret Line Info

ParagraphLineInfo caretLineInfo = caretPosition.GetCurrentInlineBox().LineInfo;

//Next Annotation LineInfo variable

ParagraphLineInfo previousAnnotationLineInfo = null;

if (!document.Selection.IsEmpty)

{

document.CaretPosition.MoveToPosition(document.Selection.Ranges.Last.StartPosition);

}

InlineLayoutBox inlineLayoutBox = document.CaretPosition.GetCurrentInlineBox();

do

{

inlineLayoutBox = (InlineLayoutBox)DocumentStructureCollection.GetPreviousElementOfType(inlineLayoutBox, typeof(AnnotationMarkerLayoutBox));

}

while (inlineLayoutBox != null && !(inlineLayoutBox.AssociatedInline is AnnotationRangeStart));

if (inlineLayoutBox == null)

{

return null;

}

else

{

//Get next annotation lineinfo if next annotation exists

previousAnnotationLineInfo = inlineLayoutBox.LineInfo;

}

//Compare caret & next annotation lines

if (previousAnnotationLineInfo != caretLineInfo)

{

return null;

}

return inlineLayoutBox.AssociatedInline as T;

}

Get Next Same Line Custom Annotation:

public static T GetNextSameLineAnnotationRangeStart<T>(this RadDocument document) where T : AnnotationRangeStart

{

//Document caret position

DocumentPosition caretPosition = new DocumentPosition(document.CaretPosition);

//Caret Line Info

ParagraphLineInfo caretLineInfo = caretPosition.GetCurrentInlineBox().LineInfo;

//Next Annotation LineInfo variable

ParagraphLineInfo nextAnnotationLineInfo = null;

if (!document.Selection.IsEmpty)

{

document.CaretPosition.MoveToPosition(document.Selection.Ranges.Last.EndPosition);

}

InlineLayoutBox inlineLayoutBox = document.CaretPosition.GetCurrentInlineBox();

while (inlineLayoutBox != null && !(inlineLayoutBox.AssociatedInline is AnnotationRangeStart))

{

inlineLayoutBox = (InlineLayoutBox)DocumentStructureCollection.GetNextElementOfType(inlineLayoutBox, typeof(AnnotationMarkerLayoutBox));

}

if (inlineLayoutBox == null)

{

return null;

}

else

{

//Get next annotation lineinfo if next annotation exists

nextAnnotationLineInfo = inlineLayoutBox.LineInfo;

}

T annotationRangeStart = inlineLayoutBox.AssociatedInline as T;

if (annotationRangeStart == null)

{

return null;

}

//Compare caret & next annotation lines

if (nextAnnotationLineInfo != caretLineInfo)

{

return null;

}

return annotationRangeStart;

}

Here are some examples on how you can use these (note that the Get Next & Previous methods above are in a class file named RadDocumentExtensions. Change this to whatever your class name is):

Previous Same Line Annotation (change the last message box details to suit your custom annotation properties):

SemanticRangeStart sameLinePreviousAnnotation = RadDocumentExtensions.GetPreviousSameLineAnnotationRangeStart<SemanticRangeStart>(

this.radRichTextBox.Document);

if (sameLinePreviousAnnotation == null)

{

MessageBox.Show("No previous annotations");

}

else

{

MessageBox.Show("Name: " + sameLinePreviousAnnotation.Product.Name.ToString() + "\n\nHas Child: " + sameLinePreviousAnnotation.Product.HasChild.ToString());

}

Next Same Line Annotation (change the last message box details to suit your custom annotation properties):

SemanticRangeStart sameLineNextAnnotation = RadDocumentExtensions.GetNextSameLineAnnotationRangeStart<SemanticRangeStart>(

this.radRichTextBox.Document);

if (sameLineNextAnnotation == null)

{

MessageBox.Show("No next annotations");

}

else

{

MessageBox.Show("Name: " + sameLineNextAnnotation.Product.Name.ToString() + "\n\nHas Child: " + sameLineNextAnnotation.Product.HasChild.ToString());

}

Thought I should share this with everyone. There's no point all of us trying to do the same job twice!

Thanks,

Rob

RichTextBox

answered on 11 May 2012

1 answer

181 views

Display tooltip on TimeBar

I want to display a tooltip for data points on the selectionPreview area on the TimeBar when the user does a mouseover on a RadColumnSparkline within a RadTimeBar. Is there a way to do this, as the selectionThumbPreview on the RadTimeBar is displayed in this area?

TimeBar

answered on 11 May 2012

1 answer

115 views

RadGridView as reuseable custom control

Hi ,
i am new to WPF and Telerik Controls , so obvious answers are also appreciated .
i need to implement RadGridView as a custom resuseable control as per client's requirements .i have created a radgridview in a wpf application with columns and their relevent bindings but client wants it as a custom control which when dragged to wpf window contains all columns by default and by just setting DataContext of the control will populate all the columns with data.
please guide me towards this implementation.
thanks

GridView

answered on 11 May 2012

3 answers

114 views

Set color by code

Hi,

i want to set the Startup color from white to a different one. This color i want to set by code (c#).
I tried this:

Color kdcol = ITA_CRM.Klassen.helper.HexColor("#FF008062");

// kdcol = "#FF008062"

this.KundenColorRCE.SelectedColor = kdcol;

this.KundenColorRCE.InitialColor = kdcol;

But in the form it is still white! Why?

Thanks a lot
Regards
Rene

ColorEditor

answered on 11 May 2012

3 answers

126 views

VS Designer issue with RadDocumentPane

Hi,

I've recently started using Telerik WPF controls so bare with me when I try to explain my problem. First thing I have tried to do was to create a dynamic layout docking application. As shown in number of tutorials, I have created a simple WPF application with RadDocumentHost and another UI class that looks like this:

<telerik:RadDocumentPane x:Class="RadControlsWpfApp1.RadControlsScenario1" xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation" xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml" <span class="Apple-tab-span" style="white-space:pre"> xmlns:telerik="http://schemas.telerik.com/2008/xaml/presentation" xmlns:d="http://schemas.microsoft.com/expression/blend/2008" xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006" Header="RadControlsScenario1" mc:Ignorable="d" d:DesignHeight="288" d:DesignWidth="290"> <Grid> <TextBlock Text="Blah blah blah"/> </Grid> </telerik:RadDocumentPane>

When I try to look at the xaml for this window in VS designers, all I get is a large grey box that covers the entire area. At that point I can't drag/drop any new controls onto the window.

Also, in another application that I have converted to use RadDocumentPane, I get very large header tabs at runtime ( about half of the client space is covered by the header tab ).

Has anyone seen this too? Any help would be greatly appriciated.

Btw, I'm running latest version of the WPF toolkit ( 2012.1.326.40 )

Installer and Visual Studio Extensions

answered on 11 May 2012

1 answer

121 views

Expander inside split container

Hi,

I'm evaluating Telerik Radcontrols for WPF to see how easy it is get done everything UX guys can think of. Now I have the following case in my hands:

I need to have an extending menu that has default mode of showing 30px column of icons by default. End user can click on a button to make the menu expand, showing icons and text. I suppose this can be done with expander quite easily.

The thing is that the expander needs to be placed inside a split container, and the split container needs to expand with the expander, quite as smoothly. In practice, I guess I would have to animate the split container, in sync with the expander animation. Is there an easy way to do this?

Br,

:^Panu>

Expander

answered on 11 May 2012

5 answers

220 views

[WPF] RadGridView - "zebra" effect

In our project, we have to achieve the "zebra" effect for the rows of the grid. This effect means that odd rows are one color (e.g. Red) and the even rows are other color (e.g. Blue). For WinForms I found the solution (http://www.telerik.com/community/forums/winforms/themes-and-visual-style-builder/radgridview-row-color.aspx) but I think for WPF it cannot be done in the same way, because EnableAlternatingRowColor is missing. Can you give me a solution?

Best Regards,
Lazar Sestrimski

GridView

answered on 11 May 2012

1 answer

198 views

RadComboBox BindingOperations.GetBindingExpression

How does one grab the binding in order to force an update on a RadComboBox control?

MyRadComboBox.ItemsSource = MyObservableCollectionOfACustomClass;
MyRadComboBox.DisplayMemberPath = "Description";

Then, I try to grab the binding in a different control's event.

var binding = BindingOperations.GetBindingExpression(MyRadComboBox, RadComboBox.ItemsSourceProperty);

if (binding == null) return; // This is always null

binding.UpdateTarget();

ComboBox

answered on 11 May 2012

1 answer

136 views

InputGesture

Hello,

how can i use KeyGestures from the RoutedUICommands with RadMenuItems?

best regards

Menu

answered on 10 May 2012

1 answer

129 views

Persistance in WPF; use in Silverlight

When I persist a control in WPF, should I be able to unpersist it into Silverlight?

I expect the answer to be "it depends". What controls are cross-compatible; if any?

Also, do you have an example where a control is persisted to XML then re-hydrated back to the control?

Thanks in advance for your help.

PersistenceFramework

answered on 10 May 2012