Hi,
I'm trying to make a bar chart with long text of categories, so I wrapped them all by the following code
xaml
<
Grid
SizeChanged
=
"Grid_SizeChanged"
>
<
telerik:RadCartesianChart
Grid.Row
=
"0"
x:Name
=
"ChartSeries"
>
<
telerik:RadCartesianChart.HorizontalAxis
>
<
telerik:CategoricalAxis
ClipToBounds
=
"False"
HorizontalLocation
=
"Right"
SmartLabelsMode
=
"SmartStep"
IsStepRecalculationOnZoomEnabled
=
"True"
>
<
telerik:CategoricalAxis.LabelTemplate
>
<
DataTemplate
>
<
TextBlock
TextWrapping
=
"Wrap"
MaxWidth
=
"{Binding ElementName=Self, Path=MaxWidthTextBlock}"
Text
=
"{Binding}"
/>
</
DataTemplate
>
</
telerik:CategoricalAxis.LabelTemplate
>
</
telerik:CategoricalAxis
>
</
telerik:RadCartesianChart.HorizontalAxis
>
<
telerik:RadCartesianChart.VerticalAxis
>
<
telerik:LinearAxis
Minimum
=
"0"
RangeExtendDirection
=
"Positive"
SmartLabelsMode
=
"SmartStep"
>
</
telerik:LinearAxis
>
</
telerik:RadCartesianChart.VerticalAxis
>
<
telerik:BarSeries
ShowLabels
=
"False"
ClipToPlotArea
=
"False"
>
<
telerik:BarSeries.DataPoints
>
<
telerik:CategoricalDataPoint
Category
=
"TextTextTextTextTextTextText"
Value
=
"2"
/>
<
telerik:CategoricalDataPoint
Category
=
"TextTextTextTextTextTextTextTextText"
Value
=
"5"
/>
<
telerik:CategoricalDataPoint
Category
=
"TextTextTextTextTextTextTextTextTextText"
Value
=
"3"
/>
<
telerik:CategoricalDataPoint
Category
=
"TextTextTextText"
Value
=
"10"
/>
<
telerik:CategoricalDataPoint
Category
=
"TextTextTextTextTextTextTextTextTextTextTextTextText"
Value
=
"9"
/>
<
telerik:CategoricalDataPoint
Category
=
"TextTextTextText"
Value
=
"7"
/>
<
telerik:CategoricalDataPoint
Category
=
"TextTextTextText"
Value
=
"1"
/>
</
telerik:BarSeries.DataPoints
>
</
telerik:BarSeries
>
<
telerik:RadCartesianChart.Grid
>
<
telerik:CartesianChartGrid
MajorLinesVisibility
=
"Y"
x:Name
=
"Line"
>
<
telerik:CartesianChartGrid.MajorYLineStyle
>
<
Style
TargetType
=
"Line"
>
<
Setter
Property
=
"Stroke"
Value
=
"DarkGray"
/>
</
Style
>
</
telerik:CartesianChartGrid.MajorYLineStyle
>
</
telerik:CartesianChartGrid
>
</
telerik:RadCartesianChart.Grid
>
</
telerik:RadCartesianChart
>
</
Grid
>
As you can see, I have a method to recalculate the maxwidth of textblock when the container's size is change(Grid) as the following code behind
private
void
Grid_SizeChanged(
object
sender, SizeChangedEventArgs e)
{
if
(e.PreviousSize.Width != 0)
{
var ratio = e.NewSize.Width / e.PreviousSize.Width;
MaxWidthTextBlock *= ratio;
}
}
I'm running into various issues with buggy behaviour between row and cell selection units. To start with, when cell is in view mode and SelectionUnit="FullRow", pressing "Enter" keys moves to the cell below ... perfect! However, if SelectionUnit="Cell" pressing "Enter" does nothing. Is this a known bug? I wired up a custom keyboard command provider to see what commands are being generated, and sure enough, I see 3 commands queued up: Activate, MoveDown, and Select the current unit. However, they are not actually invoked, or fail at some point, if they are invoked.
This behaves as expected when cell is in edit mode.
Hi There,
We need to use more than 1,00,000 records for pivot grid in my project. Is there any possible to improve the performance of pivot grid rather than normal mode. If possible please suggest me the way or share me any ug reference link.
Kind Regards,
Sabari R
I have an implicit style for radpanegroup and have three tab items. In Blend, it looks good that all of them are on the same row. But when I run it, each tab item spans a row.
Thanks.
my requirement :
I am creating chart to display digital waveform output ( 0,1) for N number of points.I need to highlight only certain points(index).(see attached).
I have done this with the help of Point template and update done at code behind chart loaded event.This is working perfectly at loading . But after zooming the highlighting point is moved from one point another point and it is not refreshed properly.Please see below code.
Please help to fix this issue...
<
Grid
><
br
> <
telerik:RadCartesianChart
Height
=
"1"
Loaded
=
"RadCartesianChart_Loaded"
Palette
=
"Arctic"
ZoomChanged
=
"RadCartesianChart_ZoomChanged"
><
br
> <
telerik:RadCartesianChart.HorizontalAxis
><
br
> <
telerik:CategoricalAxis
VerticalLocation
=
"Top"
Visibility
=
"Visible"
LabelFitMode
=
"None"
LabelRotationAngle
=
"-90"
/><
br
> </
telerik:RadCartesianChart.HorizontalAxis
><
br
> <
telerik:RadCartesianChart.VerticalAxis
><
br
> <
telerik:LinearAxis
Minimum
=
"-1"
Maximum
=
"2"
MajorStep
=
"1"
MajorTickOffset
=
"5"
ElementBrush
=
"Orange"
/><
br
> </
telerik:RadCartesianChart.VerticalAxis
><
br
> <
telerik:RadCartesianChart.Series
><
br
> <
telerik:StepLineSeries
><
br
> <
telerik:StepLineSeries.DataPoints
><
br
> <
telerik:CategoricalDataPoint
Value
=
"1"
/><
br
> <
telerik:CategoricalDataPoint
Value
=
"0"
/><
br
> <
telerik:CategoricalDataPoint
Value
=
"1"
/><
br
> <
telerik:CategoricalDataPoint
Value
=
"1"
/><
br
> <
telerik:CategoricalDataPoint
Value
=
"1"
/><
br
> <
telerik:CategoricalDataPoint
Value
=
"1"
/><
br
> <
telerik:CategoricalDataPoint
Value
=
"0"
/><
br
> <
telerik:CategoricalDataPoint
Value
=
"0"
/><
br
> <
telerik:CategoricalDataPoint
Value
=
"1"
/><
br
> <
telerik:CategoricalDataPoint
Value
=
"0"
/><
br
> <
telerik:CategoricalDataPoint
Value
=
"1"
/><
br
> <
telerik:CategoricalDataPoint
Value
=
"0"
/><
br
> <
telerik:CategoricalDataPoint
Value
=
"1"
/><
br
> <
telerik:CategoricalDataPoint
Value
=
"1"
/><
br
> <
telerik:CategoricalDataPoint
Value
=
"1"
/><
br
> <
telerik:CategoricalDataPoint
Value
=
"1"
/><
br
> <
telerik:CategoricalDataPoint
Value
=
"0"
/><
br
> <
telerik:CategoricalDataPoint
Value
=
"0"
/><
br
> <
telerik:CategoricalDataPoint
Value
=
"1"
/><
br
> <
telerik:CategoricalDataPoint
Value
=
"0"
/><
br
> <
telerik:CategoricalDataPoint
Value
=
"1"
/><
br
> <
telerik:CategoricalDataPoint
Value
=
"0"
/><
br
> <
telerik:CategoricalDataPoint
Value
=
"1"
/><
br
> <
telerik:CategoricalDataPoint
Value
=
"1"
/><
br
> <
telerik:CategoricalDataPoint
Value
=
"1"
/><
br
> <
telerik:CategoricalDataPoint
Value
=
"1"
/><
br
> <
telerik:CategoricalDataPoint
Value
=
"0"
/><
br
> <
telerik:CategoricalDataPoint
Value
=
"0"
/><
br
> <
telerik:CategoricalDataPoint
Value
=
"1"
/><
br
> <
telerik:CategoricalDataPoint
Value
=
"0"
/><
br
> <
telerik:CategoricalDataPoint
Value
=
"1"
/><
br
> <
telerik:CategoricalDataPoint
Value
=
"0"
/><
br
> <
telerik:CategoricalDataPoint
Value
=
"1"
/><
br
> <
telerik:CategoricalDataPoint
Value
=
"1"
/><
br
> <
telerik:CategoricalDataPoint
Value
=
"1"
/><
br
> <
telerik:CategoricalDataPoint
Value
=
"1"
/><
br
> <
telerik:CategoricalDataPoint
Value
=
"0"
/><
br
> <
telerik:CategoricalDataPoint
Value
=
"0"
/><
br
> <
telerik:CategoricalDataPoint
Value
=
"1"
/><
br
> <
telerik:CategoricalDataPoint
Value
=
"0"
/><
br
><
br
> </
telerik:StepLineSeries.DataPoints
><
br
><
br
> <
telerik:StepLineSeries.PointTemplate
><
br
> <
DataTemplate
><
br
> <
StackPanel
><
br
>
<!--Fill="{Binding Presenter, Converter={StaticResource SeriesToPaletteColorConverter}}"-->
<
br
> <
Rectangle
Height
=
"126"
Width
=
"10"
Stroke
=
"Transparent"
Fill
=
"Transparent"
/><
br
> </
StackPanel
><
br
>
<!--<DataTemplate.Triggers><br> <DataTrigger Value="1" Binding="{Binding Index}" ><br> <Setter Property="Opacity" Value="0.01" /><br> </DataTrigger><br> </DataTemplate.Triggers>-->
<
br
> </
DataTemplate
><
br
> </
telerik:StepLineSeries.PointTemplate
><
br
> </
telerik:StepLineSeries
><
br
> </
telerik:RadCartesianChart.Series
><
br
><
br
> <
telerik:RadCartesianChart.Behaviors
><
br
> <
telerik:ChartPanAndZoomBehavior
x:Name
=
"panZoomBehavior"
Changed
=
"panZoomBehavior_Changed"
><
br
> </
telerik:ChartPanAndZoomBehavior
><
br
> </
telerik:RadCartesianChart.Behaviors
><
br
> <
telerik:RadCartesianChart.Resources
><
br
> <
local:SeriesToPaletteColorConverter
x:Key
=
"SeriesToPaletteColorConverter"
/><
br
> </
telerik:RadCartesianChart.Resources
><
br
> <
telerik:RadCartesianChart.Grid
><
br
> <
telerik:CartesianChartGrid
MajorLinesVisibility
=
"XY"
StripLinesVisibility
=
"XY"
IsTabStop
=
"False"
IsManipulationEnabled
=
"False"
><
br
> <
telerik:CartesianChartGrid.YStripeBrushes
><
br
> <
SolidColorBrush
Color
=
"#FFD7D7D7"
Opacity
=
"0.3"
/><
br
> <
SolidColorBrush
Color
=
"Transparent"
/><
br
> </
telerik:CartesianChartGrid.YStripeBrushes
><
br
><
br
> <
telerik:CartesianChartGrid.XStripeBrushes
><
br
> <
SolidColorBrush
Color
=
"#FFD7D7D7"
Opacity
=
"0.3"
/><
br
> <
SolidColorBrush
Color
=
"Transparent"
/><
br
> </
telerik:CartesianChartGrid.XStripeBrushes
><
br
><
br
> </
telerik:CartesianChartGrid
><
br
> </
telerik:RadCartesianChart.Grid
><
br
> <
telerik:RadCartesianChart.SelectionPalette
><
br
> <
telerik:ChartPalette
><
br
> <
telerik:ChartPalette.GlobalEntries
><
br
> <
telerik:PaletteEntry
Fill
=
"Red"
/><
br
> </
telerik:ChartPalette.GlobalEntries
><
br
> </
telerik:ChartPalette
><
br
> </
telerik:RadCartesianChart.SelectionPalette
><
br
> </
telerik:RadCartesianChart
><
br
> </
Grid
>
private void RadCartesianChart_Loaded(object sender, RoutedEventArgs e)<
br
> {<
br
><
br
> RadCartesianChart chart = (RadCartesianChart)sender;<
br
> StepLineSeries series = chart.Series.FirstOrDefault() as StepLineSeries;<
br
><
br
> //Get the Content Presenter of the series<
br
><
br
> var pointPresenter1 = series.ChildrenOfType<
ContentPresenter
>().ToList();<
br
> int count = 0;<
br
> pointPresenter1.ForEach(x =><
br
> {<
br
> var ellipseElement1 = x.ChildrenOfType<
Rectangle
>().FirstOrDefault();<
br
><
br
> //Logic from view model to decide which index need to be higlighted<
br
> if (count % 2 == 0 && ellipseElement1 != null)<
br
> ellipseElement1.Fill = new SolidColorBrush(Colors.Red);<
br
> count++;<
br
> });<
br
> <
br
> }<
br
><
br
> private void panZoomBehavior_Changed(object sender, EventArgs e)<
br
> {<
br
> <
br
> }<
br
><
br
> private void RadCartesianChart_ZoomChanged(object sender, ChartZoomChangedEventArgs e)<
br
> {<
br
> <
br
> }
I've been evaluating a number of data grids from various vendors, and the way Telerik handles stacked column headers (GridViewColumnGroup) seems to be the most awkward and restrictive of them all. A couple of points to start with:
In short, I would like consistent behavior between group column headers and column headers. I'd appreciate any insight on this subject.
Hello,
I'm currently testing the RadGridView with Load On Demand behaviour and I'm having some issues.
I'm using Entity Framework and when grouping the GridView the rows within some groups appear twice. This happens sometime just after opening the groups but sometimes not until clicking on the row within the group. Then a second row appears within that group.
This only happens when using VirtualQueryableCollectionView as ItemsSource of the GridView. When using ObservableCollection everything is ok. It's also in both cases ok, when no grouping is used - also when removing the grouping after having the duplicated rows. The affected groups are mostly those displayed at the top of the gridview. When changing the sort order of the column before grouping the column, the groups with duplicated rows are at the bottom.
using System;
using System.Collections.Generic;
using System.Collections.ObjectModel;
using System.Linq;
using Telerik.Windows.Controls;
using Telerik.Windows.Data;
using GalaSoft.MvvmLight.Messaging;
namespace PsShell.ViewModels.Articles.CtlArticleMainSelection {
public class ArticleMainSelectionViewModel : ViewModelBase {
public delegate ArticleMainSelectionViewModel Factory();
public ArticleMainSelectionViewModel() {
}
private PsShell.Models.Articles.CtlArticleMainSelection.ArticleModel _selectedArticle = null;
public PsShell.Models.Articles.CtlArticleMainSelection.ArticleModel SelectedArticle {
get {
return _selectedArticle;
}
set {
_selectedArticle = value;
OnPropertyChanged("SelectedArticle");
}
}
// private ObservableCollection<
Models.Articles.CtlArticleMainSelection.ArticleModel
> _articles = null;
// public ObservableCollection<
Models.Articles.CtlArticleMainSelection.ArticleModel
> Articles {
private VirtualQueryableCollectionView _articles = null;
public VirtualQueryableCollectionView Articles {
get {
if (_articles == null) {
var context = new Models.Articles.CtlArticleMainSelection.ArticleContext();
var query = from gp in context.BusinessPartner
orderby gp.geschaeftspartner_id ascending
select new Models.Articles.CtlArticleMainSelection.ArticleModel() {
Name1 = gp.Name1,
Name2 = gp.Name2
};
_articles = new VirtualQueryableCollectionView(query) { LoadSize = 50, VirtualItemCount = 150 }; // duplicate row in group
// _articles = new ObservableCollection<
Models.Articles.CtlArticleMainSelection.ArticleModel
>(query); // ok
}
return _articles;
}
}
}
}
<
UserControl
x:Class
=
"PsShell.Views.Articles.CtlArticleMainSelectionView"
xmlns:globalization
=
"clr-namespace:System.Globalization;assembly=mscorlib"
xmlns:telerik
=
"http://schemas.telerik.com/2008/xaml/presentation"
mc:Ignorable
=
"d"
d:DesignHeight
=
"800"
d:DesignWidth
=
"1400"
>
<
DockPanel
LastChildFill
=
"True"
>
<
telerik:RadGridView
x:Name
=
"gvArticles"
ItemsSource
=
"{Binding Articles}"
SelectedItem
=
"{Binding SelectedArticle, Mode=TwoWay}"
IsReadOnly
=
"True"
EnableRowVirtualization
=
"True"
EnableColumnVirtualization
=
"True"
AutoGenerateColumns
=
"False"
ShowGroupPanel
=
"True"
GroupRenderMode
=
"Flat"
IsSynchronizedWithCurrentItem
=
"True"
SelectionMode
=
"Single"
FilteringMode
=
"FilterRow"
ScrollMode
=
"RealTime"
>
<
telerik:RadGridView.SortDescriptors
>
<
telerik:ColumnSortDescriptor
Column
=
"{Binding Columns[\Name1\], ElementName=gvArticles}"
SortDirection
=
"Ascending"
/>
</
telerik:RadGridView.SortDescriptors
>
<
telerik:RadGridView.Columns
>
<
telerik:GridViewDataColumn
Header
=
"Name"
DataMemberBinding
=
"{Binding Name1}"
Width
=
"400"
ShowDistinctFilters
=
"False"
/>
<
telerik:GridViewDataColumn
Header
=
"Namenszusatz / Vorname"
DataMemberBinding
=
"{Binding Name2}"
Width
=
"300"
ShowDistinctFilters
=
"False"
/>
</
telerik:RadGridView.Columns
>
</
telerik:RadGridView
>
</
DockPanel
>
</
UserControl
>
A second issue is the performance. When using ObservableCollection as ItemsSource the performance is ok. But when using VirtualQueryableCollectionView the performance is unacceptable slow. I can see the empty grid for about 2 seconds before it is populated with data - and this with a Loadsize of 50 items (in this example it's a bit faster because I reduced the columns from about 10 to 2). I noticed that when using GroupRenderMode="Nested" the performance is noticeable faster, but that isn't the recommended way because of performance issues when using nested grouping.
Best Regards
Raul
I use auto generate property and find it to an object with a string property....
(in edit mode) if i type a super long text into the textbox, the width of the textbox would keep increasing so the whole text is always visible
How can i change that behavior to have width of the textbox fixed?
Please see attached