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Radgridview binding to large column set is slow

I am facing an issue whereby I have 184 columns and I just bind to 10 of those. The rest exist in the background and are not shown on the UI. I have noticed that when I switch from a certain element to another in order to populate the data grid with the respective information of the corresponding element the performance is really slow. I have also fixed the width and height of the data grid, therefore it doesn't seem that there's any issue with respect to the telerik data grid drawing out infinite dimensions. Any insight and suggestions about improving the performance of the radgridview would be really helpful.

PS: Would it be possible to do a live web session with you guys since if things don't work for us, our clients are getting impatient and we might replace the telerik grid view with the default wpf grid control.

Code Snippet:

<Grid HorizontalAlignment="Stretch">

<Grid.RowDefinitions>

<RowDefinition />

</Grid.RowDefinitions>

<!--ListBox ItemsSource="{Binding Path=PdsTrancheResults,

Converter={StaticResource RowTemplateConverter}}"

ItemTemplate="{StaticResource RowTemplate}"

>

</ListBox>-->

<!--<DataGrid ItemsSource="{Binding Path=PdsTrancheResults, Converter={StaticResource RowTemplateConverter}}"

AutoGenerateColumns="True"/>-->

<telerik:RadGridView IsFilteringAllowed="False" Grid.Row="1"

x:Name="ResultOutPutGrid"

HorizontalAlignment="Stretch"

IsReadOnly="True"

ItemsSource="{Binding Path=PdsTrancheResults, IsAsync=True}"

AutoGenerateColumns="False"

AlternationCount="2"

EnableRowVirtualization="True"

EnableColumnVirtualization="True"

DataLoadMode="Asynchronous"

MaxWidth="600"

MaxHeight="900"

SelectionMode="Extended"

ShowGroupPanel="False"

telerik:StyleManager.Theme="Windows7"

>

<telerik:RadGridView.Columns>

<telerik:GridViewDataColumn DataMemberBinding="{Binding Period}">

<telerik:GridViewDataColumn.Header>

<TextBlock Text="Period" TextWrapping="Wrap" TextAlignment="Center"/>

</telerik:GridViewDataColumn.Header>

</telerik:GridViewDataColumn>

<telerik:GridViewDataColumn DataMemberBinding="{Binding Season}">

<telerik:GridViewDataColumn.Header>

<TextBlock Text="Seasoning" TextWrapping="Wrap" TextAlignment="Center"/>

</telerik:GridViewDataColumn.Header>

</telerik:GridViewDataColumn>

<telerik:GridViewDataColumn DataMemberBinding="{Binding Coupon}">

<telerik:GridViewDataColumn.Header>

<TextBlock Text="Coupon" TextWrapping="Wrap" TextAlignment="Center"/>

</telerik:GridViewDataColumn.Header>

</telerik:GridViewDataColumn>

<telerik:GridViewDataColumn DataMemberBinding="{Binding Balance}">

<telerik:GridViewDataColumn.Header>

<TextBlock Text="Balance" TextWrapping="Wrap" TextAlignment="Center"/>

</telerik:GridViewDataColumn.Header>

</telerik:GridViewDataColumn>

<telerik:GridViewDataColumn DataMemberBinding="{Binding OrigBalance}">

<telerik:GridViewDataColumn.Header>

<TextBlock Text="Original Balance" TextWrapping="Wrap" TextAlignment="Center"/>

</telerik:GridViewDataColumn.Header>

</telerik:GridViewDataColumn>

<telerik:GridViewDataColumn DataMemberBinding="{Binding MoodysRating}">

<telerik:GridViewDataColumn.Header>

<TextBlock Text="Moodys Rating" TextWrapping="Wrap" TextAlignment="Center"/>

</telerik:GridViewDataColumn.Header>

</telerik:GridViewDataColumn>

<telerik:GridViewDataColumn DataMemberBinding="{Binding AvgOcPct}">

<telerik:GridViewDataColumn.Header>

<TextBlock Text="Avg Acct Pct" TextWrapping="Wrap" TextAlignment="Center"/>

</telerik:GridViewDataColumn.Header>

</telerik:GridViewDataColumn>

</telerik:RadGridView.Columns>

</telerik:RadGridView>

</Grid>

answered on 20 Jul 2012

3 answers

231 views

Multiple RadLinearSparkline and performance?

Hi,

I got a serious problem when I using TimeBar with multiple RadLinearSparklines.

data points = 3 x 24 x 60 = 4320.

the movement is too slow.



What's the best way to use TimeBar with multiple lines?





<

Window x:Class="WpfApplication4.MainWindow"

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

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

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

xmlns:example="clr-namespace:WpfApplication4"

Title="MainWindow" Height="350" Width="1024">

<Window.DataContext>

<example:ExampleViewModel StartDate="2012-01-01 00:00:00" EndDate="2012-01-04 00:00:00" />

</Window.DataContext>

<Grid x:Name="LayoutRoot" Background="White">

<Grid.RowDefinitions>

<RowDefinition/>

<RowDefinition Height="AUto"/>

</Grid.RowDefinitions>

<telerik:RadTimeBar Margin="6" VerticalAlignment="Top" telerik:StyleManager.Theme="Metro"

PeriodStart="2012-01-01 00:00:00" PeriodEnd="2012-01-04 00:00:00"

VisiblePeriodStart="2012-01-01 00:00:00" VisiblePeriodEnd="2012-01-01 06:00:00"

SelectionStart="2012-01-01 02:00:00" SelectionEnd="2012-01-01 03:00:00"

MinSelectionRange="00:01:00"

IsSnapToIntervalEnabled="False"

FontSize="9"

SelectionTitleFormatString="{}{0:yyyy'-'MM'-'dd HH':'mm':'ss} - {1:yyyy'-'MM'-'dd HH':'mm':'ss}">

<telerik:RadTimeBar.Intervals>

<telerik:DayInterval />

<telerik:HourInterval IntervalSpans="1,6,12,20" />

<telerik:MinuteInterval IntervalSpans="1,10,15,30" />

</telerik:RadTimeBar.Intervals>

<StackPanel>

<telerik:RadLinearSparkline ItemsSource="{Binding LinearData}" XValuePath="Date" YValuePath="Value" Height="40" Margin="0 8" LineStroke="Red" />

<Border Height="1" Background="LightGray"/>

<telerik:RadLinearSparkline ItemsSource="{Binding LinearData2}" XValuePath="Date" YValuePath="Value" Height="40" Margin="0 8" LineStroke="Blue" />

<Border Height="1" Background="LightGray"/>

<telerik:RadLinearSparkline ItemsSource="{Binding LinearData}" XValuePath="Date" YValuePath="Value" Height="40" Margin="0 8" LineStroke="Green" />

<Border Height="1" Background="LightGray"/>

<telerik:RadLinearSparkline ItemsSource="{Binding LinearData2}" XValuePath="Date" YValuePath="Value" Height="40" Margin="0 8" LineStroke="Cyan" />

<Border Height="1" Background="LightGray"/>

<telerik:RadLinearSparkline ItemsSource="{Binding LinearData}" XValuePath="Date" YValuePath="Value" Height="40" Margin="0 8" LineStroke="Brown" />

<Border Height="1" Background="LightGray"/>

<telerik:RadLinearSparkline ItemsSource="{Binding LinearData2}" XValuePath="Date" YValuePath="Value" Height="40" Margin="0 8" LineStroke="Magenta"/>

<Border Height="1" Background="LightGray"/>

</StackPanel>

</telerik:RadTimeBar>

</Grid>

</Window

answered on 20 Jul 2012

4 answers

248 views

Hosting a Win32 window in a WPF floating tear off tab

Hi guys,

I have described my problem with hosting a Win32 OSG (built on OpenGL) control in RadDocking for WPF here:
http://stackoverflow.com/questions/10544938/hosting-a-win32-window-in-a-wpf-floating-tear-off-tab

Do you have any ideas what might cause the problem?

Thanks,
Seth

answered on 20 Jul 2012

3 answers

171 views

Default FilterControl and key events

Hello,
On my window I have RadGridView, and defained default key events:
Escape : close window
Enter : try commit data and close window
The problem is, when somebody open filter control, try enter value to it and press Enter key to apply filter.
It cause commit and close event on my window. How to handle key events on filter control, and disable routing to my window, when filter control is open??

answered on 20 Jul 2012

0 answers

83 views

grid in heirarchy loads very slowly

Hi,
I have a grid upto four levels in heirarchy,When I expands the grid it takes lots of seconds to expand the grid,My code is:

<UserControl x:Class="WPF_WindowPO.UcWorksheet"
             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"
             mc:Ignorable="d"     xmlns:telerik="http://schemas.telerik.com/2008/xaml/presentation"
      xmlns:telerikGrid="clr-namespace:Telerik.Windows.Controls;assembly=Telerik.Windows.Controls.Gridview"
          Loaded="UserControl_Loaded" d:DesignHeight="614" d:DesignWidth="940">
<grid>
<telerik:RadGridView RowIndicatorVisibility="Collapsed" AutoGenerateColumns="True" ItemsSource="{Binding}" ></telerik:RadGridView>
</grid>
</UserControl >
Also please let me know how to alogn the columns of header and heirarchy?
Any help will be highly appreciated..

Thanks

asked on 20 Jul 2012

0 answers

81 views

Event "NewItemInserted" exists??

Hi,

There's an event that execute when a new RadListItem is inserted???

Else....

How can I simulated that???

thanks all

asked on 20 Jul 2012

1 answer

112 views

RadGridview's summary format

Dear Telerik:

How can i get below format in RadDataGridview(WPF) as Balance column Dr and Cr symbols and finally the totals in grid's summary
with symbol and comma seprated.

Note: I am using WPF_2012_2_0703 Build

Code	Particulars	Balance
1001	ABC	1,000 Cr
1002	XYZ	1,000 Dr
1003	AAA	2,000 Dr
Total		2,000 Dr

Thanks in Advance...

Regards,
Mohammed

answered on 20 Jul 2012

4 answers

285 views

ScheduleView Styling

Hi,

I am using RadScheduleView (WPF) for the touch screen application currently developing.Trying to implement the below styling changes to RadScheduleView

1. Increase the height of calendar View Definitions List / Ribbon (where the Day, Week, Month, etc. options are)
2. Increase the size of calendar navigation buttons (right side of calendar ribbon)
3. Increase the height of scrollbar at the bottom of the calendar
4. Open the Appointment Dialog for single click of an Appointment
5. Remove the delete button 'x' from the Appointment

Right clicked the properties -> AppointmentStyleSelector and selected Extract Value to Resource, below error is seen

"Could not create resource"
"Value cannot be null."
"Parameter name : PropertyKey"

I am using the Metro Theme (RadControls for WPF Q1 2012). Does not have Expression Blend.
I do not know if I will require the XAML markup for the ScheduleViewBase implementing the above changes.

Kindly suggest.

Please let me know for any clarifications.

Thank you & Regards,
Phani.

answered on 19 Jul 2012

4 answers

358 views

Vertical Scrollbar changes sizes when scrolling

I am having an issue with the scroll bar on some of my gridviews. I am binding the itemssource to an observable collection of business objects. The size it shows the scroll bar when the data is first loaded, is smaller than the size of the scroll bar after I scroll through the data.

Is there some property I need to set so that it detects the number of rows in a collection before drawing the scroll bar?

I have a attached a screen shot showing the issue. The first gridview shows the scroll bar after the data is initially loaded. The second shows the scroll bar after scrolling through the data.

answered on 19 Jul 2012

7 answers

547 views

Show some Group Headers and hide Others

All of the values in my Group Footers row show in the Group Headers row. I would like to hide most of the values and show only 2. How can I selectively show some values in the Group Header and hide others?

Thank you.

answered on 19 Jul 2012

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