Questions on UI for WPF Forum

1 answer

107 views

Hi,

I have a project with 3 forms, Form A/B/C. Form A call the showdialog of Form B and Form B call the showdialog of Form C.
Each form have a persistence Id. On the close of each form, I persist the form. Actually, when I close Form C, Form C/B/A are persisted at the same time!!! How I can persist a form only when it's needed???

Thank's

PersistenceFramework

answered on 27 Mar 2012

5 answers

299 views

[Solved] bug in radmenuitem command binding at raisecanexecutechanged

Hi.
I'm using radmenu like this:

<telerik:RadMenu Grid.Column="0" VerticalAlignment="Center" IsTabStop="False" Orientation="Vertical">

<telerik:RadMenu.Items>

<telerik:RadMenuItem Header="Modyfikuj" Command="{Binding Path=StartEditPartCommand}"/>

<telerik:RadMenuItem Header="Zatwierdź" Command="{Binding Path=CommitEditPartCommand}"/>

<telerik:RadMenuItem Header="Anuluj" Command="{Binding Path=RejectEditPartCommand}"/>

</telerik:RadMenu.Items>

</telerik:RadMenu>

so basically, i'm binding menu items to some commands which have canexecute method:

StartEditPartCommand = new DelegateCommand(

/*foo*/,

() => !IsEditingPart && SelectedItem != null);

somewhere in code, raisecanexecutechanged method is properly raised:
StartEditPartCommand.RaiseCanExecuteChanged();

and... it doesn't refresh menuitems' IsEnabled property - they remain in previous state. Sliding mouse cursor over menuitem causes menuitems refresh, but not always.

When having changed radmenu to itemscontrols/stackpanels with buttons everything works fine, so it's probably bug with radmenu or radmenuitem?

Menu

answered on 27 Mar 2012

4 answers

219 views

How to sort RadChart's XCategorys

Hello,

I am trying to read in a bunch of data from a stored procedure and I build out multiple data series in the same order that it was received from the stored procedure. The problem lies in that the order of the data from the stored procedure is not the same order that RadChart renders the XCategories. For instance, I am reading in the XCategory's as Apr-2009, June-2009... till now. But the XCategory's wind up being alphabetized rather than ordered by the order specified in the stored procedure. Is there a good way to re-order the XCategories so they appear chronologically?

Thanks,
Sean

Chart

answered on 26 Mar 2012

4 answers

159 views

[Solved] Changing Background_Disabled color?

I'm trying to change the color of a RadDataForm, when it's disabled.

I've found these instructions: http://www.telerik.com/help/wpf/raddatafor-styles-and-templates-styling-raddataform.html

But when I load my solution file in Microsoft Expression Blend 4, I get exceptions:

XamlParseException: 'Office_Black' is not a valid value for property 'Theme'.

DataForm

answered on 26 Mar 2012

0 answers

88 views

Grid not getting focus when clicking on header

Hi,

We use RadGridView 2011.2.920.35 . We have problems getting focus on our grids. If we have two grids side-by-side and focus is on the first one, clicking the header of one the columns of the second grid doesn't switch focus to that grid. This is a real problem when the grids are empty and the headers are the only thing displayed of the grid. Focus switching does work with other grid elements (background, groupbox, even clicking on the little filter icon in the header).

Is this known behavior? If so, how can I change it? If not, is there any other information I can provide to reproduce this issue and get help?

Bye,
Steven

GridView

asked on 26 Mar 2012

6 answers

231 views

Create custom filter based on property Type

Hi,

I have used the EditorTemplateRules to created custom filters for various properties based on their name (i.e. combo boxes populated with appropriate data).

What I would like to do now is create a rule based on property type rather than property name. I want all properties of type DateTime (or DateTime?) to use a custom control.

Is this possible?

Thanks.

DataFilter

answered on 26 Mar 2012

3 answers

162 views

Carousel Top Item

If item per page is greater than total item then i have to click one more time to bring the item in the view page.
i want to avoid this.
how can i do this in XAML?

Thanks in advance.

Carousel

answered on 26 Mar 2012

2 answers

311 views

[Solved] LoadedEvent for GridViewCell

Hello,

in my Table-Control which is based on the RadGridView I'm trying to set an AttachedDependencyProperty for each GridViewCell.
My Problem is that I reached my Handler only for Rows of the Type CheckBoxColumn and ComboBoxColumn.

public class Table : RadGridView

{

public Table()

{

EventManager.RegisterClassHandler(typeof(GridViewCellBase), LoadedEvent, new RoutedEventHandler(OnGridViewCellLoaded), true);

}

private static void OnGridViewCellLoaded(object sender, RoutedEventArgs e)

{

var cell = sender as GridViewCellBase;

if (cell != null)

{

var dataType = cell.DataColumn.DataType;

if (dataType == typeof(int) || dataType == typeof(double) || dataType == typeof(float) || dataType == typeof(decimal))

{

cell.SetValue(Table.NumberColumnProperty, true);

}

public static bool GetNumberColumn(DependencyObject obj)

{

return (bool)obj.GetValue(NumberColumnProperty);

}

public static void SetNumberColumn(DependencyObject obj, bool value)

{

obj.SetValue(NumberColumnProperty, value);

}

public static readonly DependencyProperty NumberColumnProperty =

DependencyProperty.RegisterAttached("NumberColumn", typeof(bool), typeof(Table),

new FrameworkPropertyMetadata(false, FrameworkPropertyMetadataOptions.AffectsMeasure | FrameworkPropertyMetadataOptions.AffectsRender | FrameworkPropertyMetadataOptions.Inherits));

}

GridView

answered on 26 Mar 2012

1 answer

196 views

Comparative Measure with label

I would like to add some static text to the Comparative Measure element. I have re-templated the bullet graph, but my attempts to add the text does not seem to work. I would like the text to float at the top right of the line. Is this possible?

Here is my style template:

<Style x:Key="RadHorizontalBulletGraphStyle" TargetType="telerik:RadHorizontalBulletGraph">

<Setter Property="ComparativeMeasureThickness" Value="1"/>

<Setter Property="FontSize" Value="10"/>

<Setter Property="Template">

<Setter.Value>

<ControlTemplate TargetType="telerik:RadHorizontalBulletGraph">

<Grid>

<Grid.RowDefinitions>

<RowDefinition Height="5*"/>

</Grid.RowDefinitions>

<Border BorderBrush="{TemplateBinding BorderBrush}" BorderThickness="{TemplateBinding BorderThickness}" Background="White" Grid.Row="0">

<Grid>

<Grid.Resources>

<Style TargetType="telerik:BarItem">

<Setter Property="LengthPercent" Value="1" />

</Style>

</Grid.Resources>

<Grid.RowDefinitions>

<RowDefinition Height="5*" />

</Grid.RowDefinitions>

<telerik:FeaturedMeasurePresenter Grid.Row="0" Content="{TemplateBinding FeaturedMeasureInternal}" Margin="0,5" />

<telerik:FeaturedMeasurePresenter Grid.Row="1" Content="{TemplateBinding ProjectedMeasureInternal}" Margin="0,5" />

</Grid>

<StackPanel HorizontalAlignment="Stretch">

<telerik:ComparativeMeasuresContainer ChildrenSource="{TemplateBinding MergedComparativeMeasures}" Range="{TemplateBinding Range}" Margin="-15" />

</StackPanel>

</Grid>

</Border>

<telerik:QuantitativeScaleContainer Grid.Row="1" TextFormatString="{TemplateBinding TextFormatString}" Visibility="{TemplateBinding QuantitativeScaleVisibility}" Opacity="0.5" RenderTransformOrigin="0.5,0.5" Range="{TemplateBinding Range}" >

<telerik:QuantitativeScaleContainer.RenderTransform>

<TranslateTransform Y="5"/>

</telerik:QuantitativeScaleContainer.RenderTransform>

</telerik:QuantitativeScaleContainer>

</Grid>

</ControlTemplate>

</Setter.Value>

</Setter>

</Style>

<SolidColorBrush x:Key="ActualBrush" Color="Green" />

<SolidColorBrush x:Key="TargetBrush" Color="Red" />

And here is my control definition:

<telerik:RadHorizontalBulletGraph TextFormatString="${0}"

ProjectedValue="150"

FeaturedMeasure="200"

ComparativeMeasure="175"

Height="100"

Style="{StaticResource RadHorizontalBulletGraphStyle}"

FeaturedMeasureBrush="{StaticResource ActualBrush}"

ProjectedValueBrush="{StaticResource TargetBrush}"

Step="200" />

BulletGraph

answered on 26 Mar 2012

3 answers

512 views

Win32Exception in the chart

Hello!

Sometimes we get following exception while creating chart:

System.ComponentModel.Win32Exception (0x80004005): The system cannot find the file specified
   at MS.Win32.UnsafeNativeMethods.RegisterClassEx(WNDCLASSEX_D wc_d)
   at MS.Win32.HwndWrapper..ctor(Int32 classStyle, Int32 style, Int32 exStyle, Int32 x, Int32 y, Int32 width, Int32 height, String name, IntPtr parent, HwndWrapperHook[] hooks)
   at System.Windows.Threading.Dispatcher..ctor()
   at System.Windows.Threading.Dispatcher.get_CurrentDispatcher()
   at System.Windows.Media.Visual..ctor(ResourceType resourceType)
   at System.Windows.FrameworkElement..ctor()
   at System.Windows.Controls.Control..ctor()
   at System.Windows.Controls.ContentControl..ctor()
   at Telerik.Windows.Controls.RadChart..ctor() in c:\TB\117\WPF_Scrum\Release_WPF\Sources\Development\Controls\Charting\Chart\RadChart.cs:line 252

Telrik doesn't install on the machine. We use dll from library. What does this path ment?

If you need more information - please, tell what is it - I try to get it for you.

Thanks!

Chart

answered on 26 Mar 2012