Questions on UI for WPF Forum

3 answers

237 views

ItemsIndent works well with nodes containing children. But then on a leaf node it doesn't. Is there a way to move the leaf node further to the left? See image attached for depiction.

<UserControl x:Class="MyApp.ToolboxControl"

xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"

xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"

xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"

xmlns:d="http://schemas.microsoft.com/expression/blend/2008"

xmlns:telerik="http://schemas.telerik.com/2008/xaml/presentation"

mc:Ignorable="d"

d:DesignHeight="300" d:DesignWidth="300">

<UserControl.Resources>

<DataTemplate x:Key="Level1">

<Grid Margin="0">

<Grid.ColumnDefinitions>

<ColumnDefinition />

<ColumnDefinition Width="*"/>

</Grid.ColumnDefinitions>

<Image Grid.Column="0" Source="{Binding ImageUrl}" Stretch="None"/>

<TextBlock Grid.Column="1" Text="{Binding Name}"/>

</Grid>

</DataTemplate>

<HierarchicalDataTemplate x:Key="Level2"

ItemsSource="{Binding Items}"

ItemTemplate="{StaticResource Level1}">

<Grid Margin="0">

<Grid.ColumnDefinitions>

<ColumnDefinition />

<ColumnDefinition Width="*"/>

</Grid.ColumnDefinitions>

<Image Grid.Column="0" Source="{Binding ImageUrl}" Stretch="None"/>

<TextBlock Grid.Column="1" Text="{Binding Name}"/>

</Grid>

</HierarchicalDataTemplate>

<HierarchicalDataTemplate x:Key="Level3"

ItemsSource="{Binding Items}"

ItemTemplate="{StaticResource Level2}">

<Grid Margin="0">

<Grid.ColumnDefinitions>

<ColumnDefinition />

<ColumnDefinition Width="*"/>

</Grid.ColumnDefinitions>

<Image Grid.Column="0" Source="{Binding ImageUrl}" Stretch="None"/>

<TextBlock Grid.Column="1" Text="{Binding Name}"/>

</Grid>

</HierarchicalDataTemplate>

</UserControl.Resources>

<Grid>

<telerik:RadTreeView ItemsSource="{Binding Items}"

ItemTemplate="{StaticResource Level3}"

ItemsIndent="10"/>

</Grid>

</UserControl>

TreeView

answered on 13 Mar 2015

1 answer

191 views

PieChart SelectedPoints binding exception

Hello,

I'm using PieChart with VM-binding and have ArgumentNullException exception in ChartSelectionBehavior.Branch.cs:

internal void UpdateSelectedPointsAndRaiseSelectionChanged()

{

var oldSelectedPoints = this.chart.SelectedPoints; // SelectedPoints is always null

var newSelectedPoints = this.GetSelectedPoints();

////var oldSelectedSeries = this.chart.SelectedSeries;

////var newSelectedSeries = this.GetSelectedSeries();

var addedPoints = newSelectedPoints.Except(oldSelectedPoints).ToList(); //exception here

var removedPoints = oldSelectedPoints.Except(newSelectedPoints).ToList();

My XAML:

<telerik:RadPieChart SelectedPoints="{Binding SelectedPoints}">

<telerik:RadPieChart.Resources>

<Style x:Key="PieSliceStyle" TargetType="Path">

<Setter Property="Fill" Value="{Binding DataItem.Brush}" />

</Style>

</telerik:RadPieChart.Resources>

<telerik:RadPieChart.SmartLabelsStrategy>

<telerik:PieChartSmartLabelsStrategy DisplayMode="SpiderAlignedOutwards"/>

</telerik:RadPieChart.SmartLabelsStrategy>

<telerik:RadPieChart.Behaviors>

<telerik:ChartSelectionBehavior DataPointSelectionMode="Multiple"

x:Name="PieSelectionBehavior"/>

</telerik:RadPieChart.Behaviors>

<telerik:RadPieChart.Series>

<telerik:DoughnutSeries ItemsSource="{Binding PieChartErrors}"

ValueBinding="Count"

DefaultSliceStyle="{StaticResource PieSliceStyle}">

<telerik:DoughnutSeries.LegendSettings>

<telerik:DataPointLegendSettings TitleBinding="Description"/>

</telerik:DoughnutSeries.LegendSettings>

<telerik:DoughnutSeries.LabelConnectorsSettings>

<telerik:ChartSeriesLabelConnectorsSettings/>

</telerik:DoughnutSeries.LabelConnectorsSettings>

</telerik:DoughnutSeries>

</telerik:RadPieChart.Series>

</telerik:RadPieChart>

ViewModel:

public class ErrorsAndWarningsViewModel : Page

{

private IObservableCollection<PieChartError> _pieChartErrors;

private ReadOnlyDataPointCollection _selectedPoints;

public ErrorsAndWarningsViewModel

{

PieChartErrors = new BindableCollection<PieChartError>();

SelectedPoints = new ReadOnlyDataPointCollection();

}

public IObservableCollection<PieChartError> PieChartErrors

{

get { return _pieChartErrors; }

set

{

if (Equals(value, _pieChartErrors))

{

return;

}

_pieChartErrors = value;

NotifyOfPropertyChange();

}

public ReadOnlyDataPointCollection SelectedPoints

{

get { return _selectedPoints; }

set

{

_selectedPoints = value;

NotifyOfPropertyChange();

}

public class PieChartError

{

public string Description { get; set; }

public int Count { get; set; }

public Brush Brush { get; set; }

}

What am I doing wrong?

ChartView

answered on 12 Mar 2015

1 answer

196 views

Copy and paste to exel

Hi,
When I try to copy a lot of data from my grid to the excel sheet, some rows are missing.

I found this solution on your forum

private void gridview_Copying(object sender, RadRoutedEventArgs e)

{

var obj = Clipboard.GetDataObject();

var data = obj.GetData(DataFormats.Text);

Clipboard.SetData(DataFormats.Text, data);

...

}

All data now are copied to excel but if into a cell there is a newline char, excel will create a new row
How can I fix it?

Another question..
I read that when I copy from grid on the clipboard all data are saved as html, csv and txt
My grid has around 500 000 cells, and the coping operation is not performed at all.
I think the problem is the html, and I need only the data without any kind of formatting.
So is it possible to saved only the txt on the clipboard?

Thanks

GridView

answered on 12 Mar 2015

1 answer

101 views

ChartAxisLabelFormat

Dear Reader,

First i'm sorry for my bad english.

I would like know, how update the ChartAxisLabelFormat in RadChart ?

I have it : http://www.casimages.com/i/15031104592612847.png (default value)

And what i want (I want binding with MySQL Data Table) : http://www.casimages.com/i/150311050226369990.png

Thanks you.

Cordialy yours,

DEFRANCE

ChartView

answered on 12 Mar 2015

3 answers

154 views

TabIndex Issuse

I found that you said we have problem with Tabindex of RadAutoCompleteBox in Link
Was this problem fixed?

AutoCompleteBox

answered on 12 Mar 2015

1 answer

87 views

RadWindow & VS2013 Theme

Hello, I tried implicit style with RadWindow as the main WIndow.
No problem, except with the VS2013 theme : when the radwindow is maximised, I've git 2 or 3 pixels at the bottom and the right side of the window. I don't have those pixels with other themes, and the RadWindow is perfectly maximised...
Thanks.

Window

answered on 12 Mar 2015

8 answers

115 views

[Solved] Problem with ordering and filtering

Hi,

I'm facing a problem with ordering and filtering for Gridview control. For some reason '100' is considered smaller than 60 or 90. I think you can understand the problem better from the attached screenshot.

GridView

answered on 12 Mar 2015

2 answers

220 views

Change Cell Appearance

I am using the spreadsheet to gather input from my users. We do the validation, however, to really make this program pop it would be great if there is a way to change the cell border color to a red boarder with a gradient starting from the cell boundary and moving inward so looking at the program it would be easy to find which values are out of range. I have tried using the brush and gradient but I can only do it for the whole page. I would settle for just changing the background of an out of range cell to red. Are there any samples you can point me to?

Thanks, great control by the way.

John

Spreadsheet

answered on 11 Mar 2015

2 answers

441 views

[Solved] Overlaping items

Hello,

In my application I have a RadTimeline control which has a custom row index generator like this:

class CustomRowIndexGenerator : IItemRowIndexGenerator

{

public void GenerateRowIndexes(List<TimelineRowItem> dataItems)

{

foreach(TimelineRowItem item in dataItems)

{

if (item.RowIndex > 0)

item.RowIndex = 0;

}

This is because when some items share a time space I want them to overlap and show them in a single row.

When this occur, the newest item is shown on the top.

I'd like to know if it is possible to show the items in the opposite way, the oldest item on top.

I've attached an image to show my case, first a normal case (no overlap), then a case using the row index generator (overlaping items) and the last one, the case that I'd like to accomplish.

Thanks in advance,

Alberto

TimeLine

answered on 11 Mar 2015

2 answers

156 views

[Solved] Grid language

Hi,
How can I change the language of the default controls captions without change Thread.CurrentThread.CurrentCulture and Thread.CurrentThread.CurrentUICulture?

For example:
PC language and cultureinfo are set as ITA
SW language is set as EN and culture info as ITA

I need to keep the number and date format setting as ITA and captions as EN

Thanks

GridView

answered on 11 Mar 2015