Questions on UI for WPF Forum

6 answers

187 views

What is the best method to determine if a given Diagram has changed (i.e. attributes of a shape changed, new shape, etc.) when not using a diagram bound with GraphSource?

Diagram

answered on 07 May 2012

0 answers

113 views

Is caret at line end / start

I sent a support ticket to the telerik admins asking if there were any API methods to determine if the caret is at the start and end of a line.
They responded with a solution so I thought I should share it with everyone else.

Is Caret at Line Start

public static bool IsCaretAtLineStart(RadDocument document)

{

DocumentPosition endLinePosition = new DocumentPosition(document.CaretPosition);

endLinePosition.MoveToCurrentLineStart();

if (document.CaretPosition == endLinePosition)

{

return true;

}

return false;

}

Is Caret at Line End

public static bool IsCaretAtLineEnd(RadDocument document)

{

DocumentPosition endLinePosition = new DocumentPosition(document.CaretPosition);

endLinePosition.MoveToCurrentLineEnd();

if (document.CaretPosition == endLinePosition)

{

return true;

}

return false;

}

I hope this helps you as it did myself.

Thanks,

Rob

RichTextBox

asked on 07 May 2012

5 answers

2.0K+ views

Index was outside the bounds of the array

Hi,

I'm trying to use the RadMaskedNumericInput as follows;

<telerik:RadMaskedNumericInput
                Grid.Row="6"
                Grid.Column="1"
                Value="{Binding Mileage}"
                EmptyContent="kilometer"
                FormatString="D"
                Mask="d"
                IsClearButtonVisible="False"
                VerticalAlignment="Center"
                VerticalContentAlignment="Center"
                />

...where the bound 'Mileage'-property is an Int. But when I try to input a number at runtime, I get the following exception;

"Index was outside the bounds of the array."

And the stacktrace;

at System.String.get_Chars(Int32 index)
at Telerik.Windows.Controls.RadMaskedNumericInput.GetValidCharOverride(Char ch, Int32& position, Nullable`1 forwardSpin, Boolean& isValid) in c:\Builds\WPF_Scrum\Release_WPF\Sources\Development\Controls\Input\MaskedInput\RadMaskedNumericInput.cs:line 625
at Telerik.Windows.Controls.RadMaskedInputBase.ProcessChar(Char ch, Int32& position, Nullable`1 forwardSpin) in c:\Builds\WPF_Scrum\Release_WPF\Sources\Development\Controls\Input\MaskedInput\RadMaskedInputBase.cs:line 2693
at Telerik.Windows.Controls.RadMaskedInputBase.ProcessChar(Char ch, Int32 position, TokenTypes type, Nullable`1 forward, Nullable`1 forwardSpin) in c:\Builds\WPF_Scrum\Release_WPF\Sources\Development\Controls\Input\MaskedInput\RadMaskedInputBase.cs:line 2641
at Telerik.Windows.Controls.RadMaskedInputBase.ProcessKey(Char ch, KeyEventArgs args) in c:\Builds\WPF_Scrum\Release_WPF\Sources\Development\Controls\Input\MaskedInput\RadMaskedInputBase.cs:line 1548
at Telerik.Windows.Controls.RadMaskedInputBase.OnKeyDownHandled(Char c) in c:\Builds\WPF_Scrum\Release_WPF\Sources\Development\Controls\Input\MaskedInput\RadMaskedInputBase.cs:line 476
at Telerik.Windows.Controls.MaskedInput.PreviewInputTextBox.OnTextInput(TextCompositionEventArgs e) in c:\Builds\WPF_Scrum\Release_WPF\Sources\Development\Controls\Input\MaskedInput\PreviewInputTextBox.cs:line 44
at System.Windows.UIElement.OnTextInputThunk(Object sender, TextCompositionEventArgs e)
at System.Windows.Input.TextCompositionEventArgs.InvokeEventHandler(Delegate genericHandler, Object genericTarget)
at System.Windows.RoutedEventArgs.InvokeHandler(Delegate handler, Object target)
at System.Windows.RoutedEventHandlerInfo.InvokeHandler(Object target, RoutedEventArgs routedEventArgs)
at System.Windows.EventRoute.InvokeHandlersImpl(Object source, RoutedEventArgs args, Boolean reRaised)
at System.Windows.UIElement.RaiseEventImpl(DependencyObject sender, RoutedEventArgs args)
at System.Windows.UIElement.RaiseTrustedEvent(RoutedEventArgs args)
at System.Windows.UIElement.RaiseEvent(RoutedEventArgs args, Boolean trusted)
at System.Windows.Input.InputManager.ProcessStagingArea()
at System.Windows.Input.InputManager.ProcessInput(InputEventArgs input)
at System.Windows.Input.TextCompositionManager.UnsafeCompleteComposition(TextComposition composition)
at System.Windows.Input.TextCompositionManager.PostProcessInput(Object sender, ProcessInputEventArgs e)
at System.Windows.Input.InputManager.RaiseProcessInputEventHandlers(ProcessInputEventHandler postProcessInput, ProcessInputEventArgs processInputEventArgs)
at System.Windows.Input.InputManager.ProcessStagingArea()
at System.Windows.Input.InputManager.ProcessInput(InputEventArgs input)
at System.Windows.Input.TextCompositionManager.UnsafeStartComposition(TextComposition composition)
at System.Windows.Input.TextCompositionManager.PostProcessInput(Object sender, ProcessInputEventArgs e)
at System.Windows.Input.InputManager.RaiseProcessInputEventHandlers(ProcessInputEventHandler postProcessInput, ProcessInputEventArgs processInputEventArgs)
at System.Windows.Input.InputManager.ProcessStagingArea()
at System.Windows.Input.InputManager.ProcessInput(InputEventArgs input)
at System.Windows.Input.InputProviderSite.ReportInput(InputReport inputReport)
at System.Windows.Interop.HwndKeyboardInputProvider.ProcessTextInputAction(IntPtr hwnd, WindowMessage msg, IntPtr wParam, IntPtr lParam, Boolean& handled)
at System.Windows.Interop.HwndSource.OnPreprocessMessage(Object param)
at System.Windows.Threading.ExceptionWrapper.InternalRealCall(Delegate callback, Object args, Int32 numArgs)
at MS.Internal.Threading.ExceptionFilterHelper.TryCatchWhen(Object source, Delegate method, Object args, Int32 numArgs, Delegate catchHandler)
at System.Windows.Threading.Dispatcher.InvokeImpl(DispatcherPriority priority, TimeSpan timeout, Delegate method, Object args, Int32 numArgs)
at System.Windows.Threading.Dispatcher.Invoke(DispatcherPriority priority, Delegate method, Object arg)
at System.Windows.Interop.HwndSource.OnPreprocessMessageThunk(MSG& msg, Boolean& handled)
at System.Windows.Interop.HwndSource.WeakEventPreprocessMessage.OnPreprocessMessage(MSG& msg, Boolean& handled)
at System.Windows.Interop.ComponentDispatcherThread.RaiseThreadMessage(MSG& msg)
at System.Windows.Threading.Dispatcher.PushFrameImpl(DispatcherFrame frame)
at System.Windows.Threading.Dispatcher.PushFrame(DispatcherFrame frame)
at System.Windows.Threading.Dispatcher.Run()
at System.Windows.Application.RunDispatcher(Object ignore)
at System.Windows.Application.RunInternal(Window window)
at System.Windows.Application.Run(Window window)
at System.Windows.Application.Run()
....

MaskedInput (Numeric, DateTime, Text, Currency)

answered on 07 May 2012

2 answers

283 views

ReadOnly Button inside RadgridView

Hi,

I have two questions, first i have a button in a column, but when a put the gridview in readonly, the button continues the same.

How i can put the button in readonly mode? This is the code.

<telerik:RadGridView x:Name="myListView" IsReadOnly="{Binding Path=pending, Converter={StaticResource booleanToInverseConv}}">

<telerik:RadGridView.Columns>

<telerik:GridViewColumn Header="" IsFilterable="False" HeaderCellStyle="{StaticResource estiloDaColuna}">

<telerik:GridViewColumn.CellTemplate>

<DataTemplate>

<Button Style="{DynamicResource ImageButtonStyle}" Tag="{Binding Path=id}" x:Name="btnRemoveProduto" Width="20" Click="removeProduto_Click" Height="20">

<Image Source="..\..\..\Icons\delete_red.png" Stretch="Fill" VerticalAlignment="Top" HorizontalAlignment="Left" />

</Button>

</DataTemplate>

</telerik:GridViewColumn.CellTemplate>

</telerik:GridViewColumn>

</telerik:RadGridView.Columns>

</telerik:RadGridView>

Second question, i want bind a business property in a column footer,

<telerik:GridViewDataColumn IsFilterable="False" IsReadOnly="True" Header="Desconto 2" DataMemberBinding="{Binding desconto2}" DataFormatString="{}{0:N2}%" Width="90" HeaderCellStyle="{StaticResource estiloDaColuna}" FooterCellStyle="{StaticResource GridViewCellStyleLeft}">

<telerik:GridViewDataColumn.Footer>

<StackPanel>

<Label Content="Ola"></Label>

<Label Content="{Binding Path=Descontos}"></Label>

</StackPanel>

</telerik:GridViewDataColumn.Footer>

Making that only appears the word "ola", the value in "Descontos" is not show. How can resolve it?

Thanks

GridView

answered on 07 May 2012

3 answers

347 views

Large image gets cut off in editor

When I insert a large jpeg into the richtextbox, the editor chops off the right side of the image to fit into the richtextbox without a horizontal scrollbar.  What I need is a way to make the richtextbox expands to fit the image.



<

telerik:RadRichTextBox HorizontalAlignment="Stretch" LayoutMode="Flow" x:Name="editor" AllowDrop="True" Drop="editor_Drop" ShowComments="False"

BorderBrush="Transparent" BorderThickness="0" IsSelectionMiniToolBarEnabled="False"

IsContextMenuEnabled="True" IsInHeaderFooterEditMode="False" DocumentPresentationChanged="EditorDocumentContentChanged"

LostFocus="editor_LostFocus" SizeChanged="editor_SizeChanged" HorizontalScrollBarVisibility="Disabled">

</telerik:RadRichTextBox

>




private void editor_SizeChanged(object sender, SizeChangedEventArgs e)
{
    this.editor.UpdateEditorLayout();
}

RichTextBox

answered on 07 May 2012

1 answer

160 views

PropertyGrid edit entity framework entities, create dynamic rows

Hi,

It is somehow possible to display/edit an EntityCollection of entities?

My entity looks like that:

public partial class Property : EntityObject

{....

public string Name {set;get}

public string Description {set;get}

public string Value{set;get}

public string RegExValidationString{set;get}

}

And I want to be able to edit a collection, each object in the collection to be displayed as an row in the PropertyGrid:

EntityCollection<Property> entityCollection = new EntityCollection<Property>();

entityCollection.Add(new Property() { Name = "test1", Description = "test1 description", Value = "111" });

entityCollection.Add(new Property() { Name = "test2", Description = "test2222 description", Value = "lallla" });

I tried by adding PropertyDefinitions, but I'm not able to edit values:

foreach (Property p in entityCollection)

{

PropertyDefinition pd = new PropertyDefinition()

{

Binding = new Binding { Source = p.Value },

DisplayName = p.Name,

Description = p.Description

};

radPropertyGrid.PropertyDefinitions.Add(pd);

}

Is there another way to do this? Do you have any examples?

PropertyGrid

answered on 07 May 2012

0 answers

143 views

Alternate Grid Row Color

Hi Maya,

Please do reply to the below thread chain with sample application...

I just want to appply alternate grid row color for telerik:RadGridView

instead of applying the following property in tag,
<telerik:RadGridView AlternateRowBackground="Aqua" AlternationCount="2"/>

i want to do the same in common settings (resource dictionary)

Please advice me ASAP.

GridView

asked on 07 May 2012

0 answers

153 views

Custom Row Styling on Expand /Collapse of GridView

Hi Team,

I have few requirements/solutions.

Requirement 1# : I have a custom Row Style, as shown in image attached.
                            On Expansion/Collapase of row in Hirerchy grid, above mentioned row style should be applied.

Please find the attachement.

GridView

asked on 06 May 2012

0 answers

130 views

Drop in any position of a control

Hi,

is it possible to drop in any position of a control? In a ListView the droppped items are in a line, but i want to drop them
somewhere in the crontrol i want, is tha possible and how?

Thanks
regards
Rene

DragAndDrop

asked on 06 May 2012

1 answer

99 views

Combox selection to bind another column

HI

I am using Radgridview in my first column binding the Combox Intemsource. second column is data column i want to bind the data for second column based on the first column selection.

eg)
Gridview
First column displaying Country code (drop down)
second column should display the country name based on the drop down selection.
I am using MVVM model

can you help me i checked telerik article but icouldnotable to achive..

regards
murugan

GridView

answered on 06 May 2012