Questions on UI for WPF Forum

1 answer

278 views

Hi all

I am binding the 'IsSelectedProperty' to trigger actions when a RadDiagramShape is selected (Clicked).

I also need to handle when the Background of the Diagram is clicked.. I've tried the override '(Preview)OnMouseDown' functions, but these also get called when the shape is clicked. I want to distinguish the case where the background of the diagram is clicked only... not a shape. Any ideas what I should be using?

Thanks

Diagram

answered on 24 Sep 2018

3 answers

85 views

YearViewPanel displays wrong values

I have found that when scrolling through up and down the years that I get incorrect values. I have attached pictures of these values. Obviously, when I select 1990 I expect to get years listed between 1990 and 2000 but I don't get that.

<telerik:RadDatePicker

Grid.Row="4"

Grid.Column="2"

Margin="20,5,5,5"

MaxHeight="60"

IsEnabled="True"

Background="{DynamicResource PrimaryBackgroundBrush}"

Foreground="{DynamicResource PrimaryForegroundBrush}"

SelectedDate="{Binding Patient.DOB, Mode=TwoWay}"

DisplayDateStart="{Binding Patient.DOBDateStart}"

DisplayDateEnd="{Binding Patient.DOBDateEnd}"

SelectableDateStart="{Binding Patient.DOBDateStart}"

SelectableDateEnd="{Binding Patient.DOBDateEnd}"

DateTimeWatermarkContent="Enter Birth Date"

ToolTip="{Binding [0].ErrorContent}">

</telerik:RadDatePicker>

DatePicker

answered on 21 Sep 2018

1 answer

97 views

PreserveSpaceForCollapsedChildren

I have a touch based application that uses a large font (Segoe UI 28) . I need to force the Year/Decade Panels to display correctly. How do I prevent the host panel from collapsing when I pick a year (it goes from wide accommodating the entire calendar down to listing only the Years) and I need to guarantee it doesn't crowd the years into a very small place?

DatePicker

answered on 21 Sep 2018

4 answers

325 views

Low grid performance in large data!

Hi.
This company to develop its software production required a components for UI layer, which according to your company's records and resume Terelik, Trial version of it with real Database ourselves on a system specification and the results are listed below is, we test.
Of course, we order your copy for WPF, WinForm & Ajax, but we consider all the tests did with WPF.
According to our results, the speed of loading and grouping based on columns in the grade products than other companies such as Janus DevleloperEXpress and was very low. So please, if possible solution for improving your present problem.

Test System Properties:

CPU: Core2 2.2 Gh

RAM: 1G

Platform: WIN XP SP3

Programing Language: .NET 3.5 C# 2008

Record Count and Results:

RowCount: 65000

ColCount: 10

ResultTime: 8.5 s

GridView

answered on 21 Sep 2018

0 answers

84 views

Question about ClassDiagram example

Hi,

The ClassDiagram example defines the class shape inside <style> definition. I need now dynamically access one TextBlock inside the definition as I need to set the text according to user input. I'm having hard time to do this as following does not work:

private void NewClass_Click(object sender, Telerik.Windows.RadRoutedEventArgs e)

{

ClassShape newClass= new ClassShape() { Content = "Class1", Position = new Point(300, 120) };

//newClass.ApplyTemplate();

var textBlock = newClass.FindName("TypeName") as TextBlock;

newClass.Loaded += this.OnNewClassLoaded;

this.diagram.Items.Add(newClass);

}

This is absolutely driving me crazy, so any help would be much appreciated.

The definition of ClassShape is something like:

<Window.Resources>

<Style TargetType="local:ClassShape">

<Setter Property="IsCollapsible" Value="True" />

<Setter Property="IsResizingEnabled" Value="False" />

<Setter Property="MinHeight" Value="100" />

<Setter Property="MinWidth" Value="100" />

<Setter Property="Padding" Value="15 5" />

<Setter Property="Width" Value="150" />

<Setter Property="Height" Value="Auto" />

<Setter Property="HorizontalContentAlignment" Value="Left" />

<Setter Property="Template">

<Setter.Value>

<ControlTemplate TargetType="local:ClassShape">

<Grid x:Name="RootPanel">

<VisualStateManager.VisualStateGroups>

<VisualStateGroup x:Name="MouseStates">

<VisualState x:Name="Normal" />

<VisualState x:Name="MouseOver" />

</VisualStateGroup>

<VisualStateGroup x:Name="CollapsedStates">

<VisualState x:Name="Expanded" />

<VisualState x:Name="Collapsed" />

</VisualStateGroup>

<VisualStateGroup x:Name="ActiveConectionStates">

<VisualState x:Name="NormalActiveConnectionState" />

<VisualState x:Name="ActiveConnectionInsideShape">

<Storyboard>

<ObjectAnimationUsingKeyFrames Duration="0"

Storyboard.TargetName="ActiveSelectedBorder"

Storyboard.TargetProperty="Visibility">

<DiscreteObjectKeyFrame KeyTime="0">

<DiscreteObjectKeyFrame.Value>

<Visibility>Visible</Visibility>

</DiscreteObjectKeyFrame.Value>

</DiscreteObjectKeyFrame>

</ObjectAnimationUsingKeyFrames>

</Storyboard>

</VisualState>

</VisualStateGroup>

<VisualStateGroup x:Name="ConnectorsAdornerVisibilityStates">

<VisualState x:Name="ConnectorsAdornerCollapsed" />

<VisualState x:Name="ConnectorsAdornerVisible">

<Storyboard>

<ObjectAnimationUsingKeyFrames Duration="0"

Storyboard.TargetName="ConnectorsControl"

Storyboard.TargetProperty="Visibility">

<DiscreteObjectKeyFrame KeyTime="0">

<DiscreteObjectKeyFrame.Value>

<Visibility>Visible</Visibility>

</DiscreteObjectKeyFrame.Value>

</DiscreteObjectKeyFrame>

</ObjectAnimationUsingKeyFrames>

</Storyboard>

</VisualState>

</VisualStateGroup>

<VisualStateGroup x:Name="SelectionStates">

<VisualState x:Name="Selected" />

<VisualState x:Name="SelectedInGroup" />

<VisualState x:Name="Unselected" />

<VisualState x:Name="SelectedAsGroup" />

</VisualStateGroup>

<VisualStateGroup x:Name="EditMode">

<VisualState x:Name="NormalMode" />

<VisualState x:Name="NormalEditMode">

<Storyboard>

<ObjectAnimationUsingKeyFrames Duration="0"

Storyboard.TargetName="TextContent"

Storyboard.TargetProperty="Visibility">

<DiscreteObjectKeyFrame KeyTime="0">

<DiscreteObjectKeyFrame.Value>

<Visibility>Collapsed</Visibility>

</DiscreteObjectKeyFrame.Value>

</DiscreteObjectKeyFrame>

</ObjectAnimationUsingKeyFrames>

<ObjectAnimationUsingKeyFrames Duration="0"

Storyboard.TargetName="EditContent"

Storyboard.TargetProperty="Visibility">

<DiscreteObjectKeyFrame KeyTime="0">

<DiscreteObjectKeyFrame.Value>

<Visibility>Visible</Visibility>

</DiscreteObjectKeyFrame.Value>

</DiscreteObjectKeyFrame>

</ObjectAnimationUsingKeyFrames>

</Storyboard>

</VisualState>

<VisualState x:Name="TextBoxEditMode">

<Storyboard>

<ObjectAnimationUsingKeyFrames Duration="0"

Storyboard.TargetName="TextContent"

Storyboard.TargetProperty="Visibility">

<DiscreteObjectKeyFrame KeyTime="0">

<DiscreteObjectKeyFrame.Value>

<Visibility>Collapsed</Visibility>

</DiscreteObjectKeyFrame.Value>

</DiscreteObjectKeyFrame>

</ObjectAnimationUsingKeyFrames>

<ObjectAnimationUsingKeyFrames Duration="0"

Storyboard.TargetName="EditTextBox"

Storyboard.TargetProperty="Visibility">

<DiscreteObjectKeyFrame KeyTime="0">

<DiscreteObjectKeyFrame.Value>

<Visibility>Visible</Visibility>

</DiscreteObjectKeyFrame.Value>

</DiscreteObjectKeyFrame>

</ObjectAnimationUsingKeyFrames>

</Storyboard>

</VisualState>

</VisualStateGroup>

<VisualStateGroup x:Name="DropStates">

<VisualState x:Name="DropNormal" />

<VisualState x:Name="DropComplete" />

<VisualState x:Name="DragOver" />

</VisualStateGroup>

</VisualStateManager.VisualStateGroups>

<Grid.RowDefinitions>

<RowDefinition Height="Auto" />

<RowDefinition Height="*" />

<RowDefinition Height="Auto" />

</Grid.RowDefinitions>

<Border x:Name="ContainerBorder"

Grid.RowSpan="3"

Background="{TemplateBinding Background}"

BorderBrush="{TemplateBinding BorderBrush}"

BorderThickness="{TemplateBinding BorderThickness}"

CornerRadius="8" />

<Grid x:Name="NormalContent" MinHeight="50">

<Grid.ColumnDefinitions>

<ColumnDefinition />

<ColumnDefinition Width="Auto" />

</Grid.ColumnDefinitions>

<Border Grid.ColumnSpan="2"

BorderBrush="{TemplateBinding BorderBrush}"

BorderThickness="1 1 1 0"

CornerRadius="8 8 0 0">

<Border.Background>

<LinearGradientBrush StartPoint="0, 0.5" EndPoint="1, 0.5">

<LinearGradientBrush.GradientStops>

<GradientStop Color="#FFD4DDEF" />

<GradientStop Offset="1" Color="#FFFFFFFF" />

</LinearGradientBrush.GradientStops>

</LinearGradientBrush>

</Border.Background>

</Border>

<StackPanel x:Name="TextContent"

Margin="{TemplateBinding Padding}"

HorizontalAlignment="{TemplateBinding HorizontalContentAlignment}"

VerticalAlignment="{TemplateBinding VerticalContentAlignment}">

<TextBlock FontSize="12"

FontWeight="Bold"

Text="{TemplateBinding Content}" />

<TextBlock x:Name="TypeName"

Grid.Row="1"

Margin="5 0 0 0"

FontSize="9"

Text="" />

Diagram

asked on 20 Sep 2018

10 answers

1.6K+ views

Force filtering to refresh when values in existing rows are updated

I have filtering enabled in my RadGridView column. When an existing row has it's cell value updated for the filtered column, the row should be excluded if it's outside of the filter parameters - however, this is not the case. I have to manually go back and adjust the filter for the row to be excluded.

How can I ensure that all current data in the grid is correctly filtered, even when cells are updated after the row is added?

GridView

answered on 20 Sep 2018

0 answers

74 views

Error on open workbook with 150k rows and 20 columns

This error occurs on RaisePropertyChanged or on this line of code

this.Spreadsheet.Workbook = workbook;

An unhandled exception of type 'System.AggregateException' occurred in mscorlib.dll

Additional information: One or more errors occurred.

here is the code which I use

input is stream form ms file dialog

XlsxFormatProvider formatProvider = new XlsxFormatProvider();

workbook = formatProvider.Import(input);

workbook.Name = openFileDialog.SafeFileName;

this.Spreadsheet.Workbook = workbook;

Spreadsheet

asked on 20 Sep 2018

5 answers

236 views

Office2013 theme - Header with column groups: the text alignment is not taking into account

Hello,

This was working in the previous version, but not in R3 2018, with the Office2013 theme.

The column is defined as:

<tk:GridViewDataColumn ColumnGroupName="RoleGroup"

DataMemberBinding="{Binding [1]}"

Header="1"

HeaderTextAlignment="Center"

IsGroupable="False"

UniqueName="Set1Role"

Width="35">

<tk:GridViewDataColumn.CellTemplateSelector>

<volley:VolleySetPlayerRoleTemplateSelector NoSet="1" />

</tk:GridViewDataColumn.CellTemplateSelector>

</tk:GridViewDataColumn>

And the text in the header is left aligned, as show in the attached screen shot.

GridView

answered on 20 Sep 2018

3 answers

116 views

Change Tabs creates Unstable Map Providers. (Memory Leak)

I am finding:
1) Create a PAGE, and VIEW MODEL
2) ON the Page:
Add a Tab Control with TWO Tab Items, on each Tab Item add a RadMap and a ComboBox
3) In the VM Create an Observable Collection of Providers and assign to both Combo Boxes on each Tab Item.
4) In the VM create a property(INotifyPropertyChanged) for each SELECTED Provider from each ComboBox, and BIND the Provider to each Map's Provider Dependency Property. (One List / Two Selected Items /Two Maps)
5) Run the App, switch between the Tabs and switch between the ComboBox's Selected Provider and you get botched providers displaying mixed data.
I have determined that when tabbing from one TabItem to an other, the RadMap gets Unloaded and then Reloaded each time, and several resources gets messed up because you do not call the DISPOSE. But, in fact you cant or else you would not be able to tab back... so there are several additional week references that are not detached and memory will continue to leak leading to poorly managed provider tiles etc... Either that, or there are static references in both Maps reference... That I am not sure yet, still investigating and leaning on the Provider itself.

Has anyone else seen bad behavior on the RadMap with multiple Providers Binding on several Tabs?

thanks,

Don

Map

answered on 20 Sep 2018

3 answers

206 views

ChartView Custom TooltipTempate in code behind

The ChartView ToolTip should look like the on in the attached gif.

I figured out that I have to change the TooltipTemplate.

But how can I get the LineSeries X values and Y Values ? In my Source code instead of X and Y I should see in the ToolTip the X value (example: January) and Y Value (example: 2,00). Any ideas ?

Here is my unfinished Source Code:

private

LineSeries CreateLineSeries(KeyValuePair<ChartSerie, List<ChartDataPoint>> chartSeries, ChartLegendSettings legendSettings,

int colorPaletteIndex)

{

// TODO: tooltip work in progress, show Format in Tooltips

FrameworkElementFactory tooltipFramework = new FrameworkElementFactory(typeof(Border));

tooltipFramework.SetValue(Border.BackgroundProperty, new SolidColorBrush(Colors.DimGray));

tooltipFramework.SetValue(Border.PaddingProperty, new Thickness(5));

FrameworkElementFactory tooltipStackpanelOne = new FrameworkElementFactory(typeof(StackPanel)) { Name = "tooltipStackpanelOne" };

tooltipStackpanelOne.SetValue(StackPanel.OrientationProperty, Orientation.Vertical);

tooltipFramework.AppendChild(tooltipStackpanelOne);

FrameworkElementFactory textBlockOne = new FrameworkElementFactory(typeof(TextBlock));

textBlockOne.SetValue(TextBlock.TextProperty, "X");

textBlockOne.SetValue(TextBlock.ForegroundProperty, new SolidColorBrush(Colors.White));

textBlockOne.SetValue(TextBlock.FontWeightProperty, FontWeights.DemiBold);

FrameworkElementFactory textBlockTwo = new FrameworkElementFactory(typeof(TextBlock));

textBlockTwo.SetValue(TextBlock.TextProperty, "Y");

textBlockTwo.SetValue(TextBlock.ForegroundProperty, new SolidColorBrush(Colors.White));

textBlockTwo.SetValue(TextBlock.FontWeightProperty, FontWeights.DemiBold);

tooltipStackpanelOne.AppendChild(textBlockOne);

tooltipStackpanelOne.AppendChild(textBlockTwo);

var lineSerie = new LineSeries()

{

VerticalAxis = CreateMultipleVerticalAxis(chartSeries, colorPaletteIndex, out var multipleVerticalAxis) ? multipleVerticalAxis : null,

ZIndex = 150, // the line series should always be displayed on top of other series.

StrokeThickness = 3.5,

LegendSettings = (SeriesLegendSettings)legendSettings,

Opacity = 0.8,

//SeriesAnimation = new ChartRevealAnimation()

//{

// AnimationDirection = AnimationDirection.In,

// Orientation = Orientation.Horizontal,

// Duration = new TimeSpan(0, 0, 0, 1, 500),

// Delay = new TimeSpan(0, 0, 0, 0, 555),

//},

//PointAnimation = new ChartMoveAnimation()

//{

// MoveAnimationType = MoveAnimationType.Left,

// Duration = new TimeSpan(0, 0, 0, 0, 400),

// Delay = new TimeSpan(0, 0, 0, 0, 155),

//},

StackGroupKey = chartSeries.Key.Group,

CombineMode = string.IsNullOrEmpty(chartSeries.Key.Group) ? ChartSeriesCombineMode.None : ChartSeriesCombineMode.Stack,

PointTemplate = new DataTemplate()

{

VisualTree = AddPointsToSeries(chartSeries, colorPaletteIndex),

},

LabelDefinitions =

{

// set the clarion format for the labels

new ChartSeriesLabelDefinition()

{

Template = new DataTemplate()

{

VisualTree = GetSeriesFormat(chartSeries),

}

},

TooltipTemplate = new DataTemplate()

{

VisualTree = tooltipFramework,

}

};

//// this is the old way of adding point to the LineSeries

//string pointTemplateString =

//    @"<DataTemplate xmlns=""http://schemas.microsoft.com/winfx/2006/xaml/presentation"" xmlns:x=""http://schemas.microsoft.com/winfx/2006/xaml"">" +

// @"<Ellipse Fill=""Black"" Width=""5"" Height=""5"" /></DataTemplate>";

//lineSerie.PointTemplate = (DataTemplate)XamlReader.Parse(pointTemplateString);

// this is the color of line series

if (chartSeries.Key.ColorHex != null)

{

lineSerie.Stroke = (SolidColorBrush)(new BrushConverter().ConvertFrom(chartSeries.Key.ColorHex));

}

foreach (ChartDataPoint serie in chartSeries.Value)

{

lineSerie.DataPoints.Add(new CategoricalDataPoint()

{

Category = serie.XPoint.Label,