Questions on UI for WPF Forum

1 answer

101 views

Appointment sample data crashes Blend designer

I installed RADControls on my system today in order to evaluate the ScheduleView, and I just can't get any sample data into Blend. I ended up creating a simplistic view model that just exposes an ObservableCollection<IAppointment> and the generated sample data still causes the designer to crash with a null reference exception. I then copied the data from the demos into the file, but with the same result, so for now, I'm at a loss.

Thanks for your advice
Philipp

ScheduleView

answered on 07 Nov 2011

2 answers

150 views

[Solved] drag drop node with hierarchical template

Hi,

I have a radtreeview which is filled with a hierarchical datatemplate which contains 2 levels,
when I try to drag a childnode the drag show the toplevelnode, see picture attached.

Am I missing something?

Can you help me?

TreeView

answered on 07 Nov 2011

1 answer

161 views

RadGridView - Data Virtualization Issue

Dear Community,

I have a requirement to populate large volume of data in the grid. I am using RadGridView with data virtualizaiton. I am not using Entity Framework rather using odp.net(oracle provider). Grid populates data using WCF service and while scrolling it is showing desired results. But sorting, grouping , filtering .. none of the features are working. Select All option throws exception! Is there any sample code the same using odp.net or ado.net?

Regards,
Godwin

General Discussions

answered on 07 Nov 2011

0 answers

125 views

Combobox drop down button not showing

Please disregard, of course my problem turns out to be a style issue. A great tool style inhertance - until you loose track or forget to define a key. Well another lesson learned and a few hours wasted - business as usual!

ComboBox

asked on 06 Nov 2011

3 answers

114 views

Chart Propert not binding in Data Template

Hi Team,

I am showing charts in Listbox. I have placed RadChart Control in Itemplate. its not binding the ChartData and SeriesDefinition property. These property has value and preperty get is also called . But still its not showing series, saying "No data Series". On the other side, ChartTitle property is bound and showing chart title.

Please see this issue and send any sample.

Thanks in adavance..

Regards,
Nidhi

XAMl code attached

<ListBox Grid.Column="0" ItemsSource="{Binding DrillDownChart}" >

<ListBox.ItemsPanel>

<ItemsPanelTemplate>

<toolKit:WrapPanel Orientation="Horizontal" HorizontalAlignment="Center" VerticalAlignment="Stretch" >

</toolKit:WrapPanel>

</ItemsPanelTemplate>

</ListBox.ItemsPanel>

<ListBox.ItemTemplate >

<DataTemplate>

<Grid Width="110" Height="114">

<Grid.RowDefinitions>

<RowDefinition Height="*" />

<RowDefinition Height="Auto" />

</Grid.RowDefinitions>

<Border Grid.Row="0">

<telerik:RadChart ItemsSource="{Binding ChartData}" SeriesMappings="{Binding ChartSeriesMappings}" >

<telerik:RadChart.DefaultView>

<telerik:ChartDefaultView ChartLegendPosition="Right">

<telerik:ChartDefaultView.ChartTitle>

<telerik:ChartTitle Content="{Binding ChartTitle}"/>

</telerik:ChartDefaultView.ChartTitle>

<telerik:ChartDefaultView.ChartArea>

<telerik:ChartArea LabelFormatBehavior="None" SmartLabelsEnabled="True" >

</telerik:ChartArea>

</telerik:ChartDefaultView.ChartArea>

<telerik:ChartDefaultView.ChartLegend>

<telerik:ChartLegend Name="ChartLegend"

LegendItemMarkerShape="Triangle" />

</telerik:ChartDefaultView.ChartLegend>

</telerik:ChartDefaultView>

</telerik:RadChart.DefaultView>

</telerik:RadChart>

</Border>

<TextBlock Text="{Binding ChartTitle}" Grid.Row="1" />

</Grid>

</DataTemplate>

</ListBox.ItemTemplate>

</ListBox>

Chart

answered on 04 Nov 2011

2 answers

124 views

Controlling portions of the Radsplitbutton

Hi,
I've recently started using Rad controls for WPF in Powerbuilder .NET 12.5

I'm using powerscript to control most of the basic events within my Radbuttons (such as open / close windows, set text labels, etc.)

The issue I'm having is getting full control of the Radsplitbutton.

For example, I currently have a radsplitbutton1 where isOpen = true when the MouseEnter event occurs. I can also use AutoOpenDelay to achieve the same result.

However, I cannot find any way to close the popup. I've tried putting isOpen = false into the MouseLeave and LostFocus events, but it never closes. And there doesn't seem to be anything similar to AutoOpenDelay which will close the popup instead of open it.

Also, the AutoOpenDelay seems to cover the entire button. I'm not sure if there is a way to open the popup ONLY when the mouse is on the drop down arrow?

Buttons

answered on 04 Nov 2011

1 answer

109 views

<ESCAPE> doesn't always exit editing - should it?

I have a grid bound to an Entity Framework-based CollectionViewSource.

For the sake of this example, my columns (left->right) are:

Name - in the database this is required, unique, and non-Null
Serial # - a string

I'm getting an exception when trying to escape editing a new line

Press <click here to add new item>
Type in a name
press <TAB> to advance to serial # column and type in a serial number
press <BACKTAB> to move focus to Name column
delete everything in the Name field that you just entered
Press <ESCAPE> once

My Entity Framework code throws an exception in the Device.Name property setter because it's been passed a Null.

I was under the impression that pressing <ESCAPE> was supposed to exit editing mode and pressing it twice on a new line was supposed to discard it. That (the latter) does happen if I've entered no data in the columns or valid data. If I continue (and ignore the exception), the new row is discarded, but I'm concerned because I don't understand what's happening.

When pressing <ESCAPE>, neither the row or cell validation methods are called, which makes sense.

Why is the RadGridView attempting to update the underlying data when it's about to be discarded?

GridView

answered on 04 Nov 2011

0 answers

157 views

Maintain scroll position on treelistview page navigation

Hi,

I need to maintain scroll position (both horizontal and vertical) when moving across pages.
I tried the following code , but was unable to achieve the desired functionality.
Even after calling RestoreScrollPosition() the scrollviewer didn't change its position.

private void btnNext_Click(object sender, RoutedEventArgs e)

{

SetScrollPosition();
BindData();

RestoreScrollPosition();

}

private void SetScrollPosition()

{

GridViewScrollViewer svSummaryInfo = (GridViewScrollViewer)rtSummaryInfo.FindChildByType<GridViewScrollViewer>();

_dbVerticalOffset = svSummaryInfo.VerticalOffset;
_dbHorizontalOffset = svSummaryInfo.HorizontalOffset;
}

private

void RestoreScrollPosition()

{

GridViewScrollViewer

svSummaryInfo = (GridViewScrollViewer)rtSummaryInfo.FindChildByType<GridViewScrollViewer>();

if (svSummaryInfo != null)

{

svSummaryInfo.ScrollToHorizontalOffset(_dbHorizontalOffset);

svSummaryInfo.ScrollToVerticalOffset(_dbVerticalOffset);

}
}

Please provide a code snippet for the same.

TreeListView

asked on 04 Nov 2011

4 answers

167 views

Cannot get [Display(AutoGenerateFilter = false)] to work

I'm trying to use the simple example code here: http://www.telerik.com/help/wpf/raddatafilter-features-data-annotations.html

I can't get any of the data annotations to work. Here is the code I'm using:

using System;

using System.Collections.Generic;

using System.Linq;

using System.Text;

using System.ComponentModel.DataAnnotations;

namespace namespace

{

public class dummy

{

[Display(AutoGenerateFilter = false)]

public string Name

{

get;

set;

}

[Display(ShortName = "Company's Name")]

public string CompanyName

{

get;

set;

}

public string Title

{

get;

set;

}

The XAML is simply <telerik:RadDataFilter Name="DataFilter" />

DataFilter

answered on 03 Nov 2011

0 answers

188 views

WPF with autoupdate (like demos click once)

Hello,
I would like to implement in my WPF application autoupdate functionality, like WPF online demos. Is it using click once??
My application will be separated in modules, and I want to each module check for newest version, download and install it automatically.
The application is goning to run in our intranet, not internet like demos.
I was seeing demos source but it's a bit complicated, I would like to see a simplest example, some links with more information!

Thanks in advance!
Alejandro

General Discussions

asked on 03 Nov 2011