Questions on UI for WPF Forum

2 answers

223 views

Trap cancel edit event on Escape ESC key

I do not want to modify default behaviour of escape key. When pressing escape key it does cancel edit correctly. I wanted to handle that event to perform another/additional function. how is it possible?

GridView

answered on 29 Oct 2010

3 answers

121 views

Cell update from NotifyProperty in ObservableCollection

I have a GridView using a ObservableColletion source.

The cells are dynamically updated after the row is added.

I am looking for an event that occurs on a cell/row that has the data updated.

Any suggestions?

I have tried cellselector and propertychanged cant find it.

BTW there is no 'cellediting' occuring, just receiving of a propertychanged notify from the collection.
Thanks

GridView

answered on 29 Oct 2010

3 answers

103 views

Cell formatting on child grid view

Hello,
I am trying for the cell formatting on condition of child grid view but it can't.
I have use the template selector class. can u help me?

GridView

answered on 29 Oct 2010

1 answer

118 views

RichTextBox Control

Does RadControls for WPF Q3 2010 beta version has RichTextBox Control? I have been waiting for it...

Thanks,

General Discussions

answered on 29 Oct 2010

1 answer

131 views

AutoHide floating pane

Hi,

I have a few docked panes and floating panes in my application at any given time. I wish to have a menu option for user to AutoHide All and Show All panes.
For docked panes, I Can set Is Pinned property, but how to hide/ show the floating pane.

Docking

answered on 29 Oct 2010

4 answers

96 views

Enter editmode on grid on added row from datamodel

We're adding our new rows from our datamodel using a shortcut keyboard command. Now I want the newly added row to be in editmode and selected with keyboard focus so I can just start typing.

I've gotten things to work the first time a row is added, however when I add any row after that using just the keyboard. The editmode wont release from the first row. The CurrentItem property wont update. I've tried doing canceleditmode commitedit setting current item etc. before selecting the new row and doing "beginEdit" however the edit will still be stuck at the first row.

Here is an example of what I've done in my event that is fired when I add a new row:

datamodel.AddedRow += delegate

{

Grid.CommitEdit();

Grid.CancelEdit();

Grid.UnselectAll();

if(!Grid.IsKeyboardFocused)

Grid.Focus();

Grid.CurrentItem = datamodel.Selected[0];

Grid.SetIsCurrent( datamodel.Selected[0], true );

Grid.BeginEdit();

};

I'm doing more here than I need I know this, but I cannot get it to update the CurrentItem before I do BeginEdit.

I tried the beta version of the Q3 release and it is working there, but I'm wondering if I can get this to work with the released Q2 release.

I can force the behviour to work be using the Rebind method before I set focus and current item. However this comes with a severe performance hit.

GridView

answered on 29 Oct 2010

1 answer

108 views

Default value

I have a DtaeTime Picker in my application as follows

<Input:RadDateTimePicker x:Name="dateTimePicker" Width="150" Margin="3,0,0,0" DateTimeWatermarkContent="DateTime" SelectedValue="{Binding StartDateTime, Mode=TwoWay}" VerticalAlignment="Center" SelectionChanged="dateTimePicker_SelectionChanged" />

and in the code behind

private DateTime _startDateTime = DateTime.Now;

public DateTime StartDateTime

{

get

{

return _startDateTime ;

}

set

{

if (_startDateTime != value)

{

_startDateTime = value;

OnPropertyChanged("StartDateTime");

}

public event PropertyChangedEventHandler PropertyChanged;

private void OnPropertyChanged(string propertyName)

{

if (this.PropertyChanged != null)

{

this.PropertyChanged(this, new PropertyChangedEventArgs(propertyName));

}

But when I run the app, there is no value set for The DateTimePicker control

DateTimePicker

answered on 29 Oct 2010

9 answers

272 views

A first chance exception of type 'System.ArgumentException' occurred in Telerik.Windows.Data.dll

Hi,

I'm having a problem with the grid view control.

During runtime my grid displays the content correctly, however when you scroll the grid up and down it throws exceptions in the VS output window. They seem to slow the entire application down.

A first chance exception of type 'System.ArgumentException' occurred in Telerik.Windows.Data.dll

Enclosed is the XAML

<

UserControl x:Class="GridTeams"

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" >

<UserControl.Resources>

</UserControl.Resources>

<Grid>

<telerik:RadGridView ItemsSource="{Binding Source={StaticResource DataTeams}}"

Margin="10">

<telerik:RadGridView.Columns>

<telerik:GridViewDataColumn DataMemberBinding="{Binding XPath=TN}"/>

</telerik:RadGridView.Columns>

</telerik:RadGridView>

</Grid>

</

UserControl>

I'm using RadControls_for_WPF_2009_3_1208_TRIAL.msi

When I run another demo with the same content it doesnt seem to cause the same effect. Therefore I am confused as to where the problem is coming from. Any help would be appreciated.

Kind regards
Neil

GridView

answered on 29 Oct 2010

2 answers

190 views

the ChartLegend items can not be displayed!

hello,

I am learning RadChart to display a pie,when I place a RadChart and ChartLegend in RadDocking,the pie chart can be drawn,but the chartlegend items are missing!

I have built a sample application to show the bug,please help me!

Any help will be appreciated!

Jerry

Screen shot

xaml:

<Grid>

<telerik:RadDocking Background="Transparent" d:IsHidden="True" >

<telerik:RadSplitContainer telerik:DockingPanel.InitialSize="200,150" MaxWidth="600"

Name="leftContainer" InitialPosition="DockedLeft">

<telerik:RadPaneGroup DropDownDisplayMode="Collapsed">

<telerik:RadPane x:Name="featurePane" Header="Featrues" >

<Controls:RadTreeView SelectionMode="Extended" IsLineEnabled="False"

ItemsOptionListType="CheckList"

IsOptionElementsEnabled="True"

IsRootLinesEnabled="True"

VerticalAlignment="Stretch" Margin="0"

x:Name="featureTree"

IsTriStateMode="True"

>

</Controls:RadTreeView>

</telerik:RadPane>

</telerik:RadPaneGroup>

</telerik:RadSplitContainer>

<telerik:RadDocking.DocumentHost>

<Grid>

<Grid.RowDefinitions>

<RowDefinition Height="100"/>

<RowDefinition Height="310*"/>

</Grid.RowDefinitions>

<Controls1:RadChart x:Name="radPipe" Grid.Row="0"

UseDefaultLayout="False">

<Charting:ChartArea x:Name="pipeArea" >

</Charting:ChartArea>

</Controls1:RadChart>

<Controls1:RadChart x:Name="radStatistics" Grid.Row="1"

UseDefaultLayout="False"

BorderBrush="Transparent">

<Grid >

<Grid.ColumnDefinitions>

<ColumnDefinition Width="165*" />

<ColumnDefinition Width="120" />

</Grid.ColumnDefinitions>

<Charting:ChartLegend Grid.Column="1" Name="pieLegend" />

<Charting:ChartArea x:Name="pieArea" Grid.Column="0"

LegendName="pieLegend" />

</Grid>

</Controls1:RadChart>

</Grid>

</telerik:RadDocking.DocumentHost>

</telerik:RadDocking>

<Button Content="Button" Height="27" HorizontalAlignment="Left" Margin="62,105,0,0"

Name="button1" VerticalAlignment="Top" Width="96" Click="button1_Click" />

</Grid>

Behind code:

public partial class MainWindow : Window

{

public MainWindow()

{

this.InitializeComponent();

}

private static DataSeries GetPieData()

{

DataSeries series = new DataSeries();

for(int i=0;i<5;i++)

{

DataPoint dataPoint = new DataPoint("aa"+i, i);

dataPoint.LegendLabel="aa"+i;

series.Add(dataPoint);

}

return series;

}

private void ConfigurePie()

{

DataSeries doughnutSeries = GetPieData();

doughnutSeries.LegendLabel = "Doughnut Series";

doughnutSeries.Definition = new DoughnutSeriesDefinition();

doughnutSeries.Definition.InteractivitySettings.HoverScope = InteractivityScope.Item;

doughnutSeries.Definition.InteractivitySettings.SelectionScope = InteractivityScope.Item;

doughnutSeries.Definition.InteractivitySettings.SelectionMode = ChartSelectionMode.Single;

((DoughnutSeriesDefinition)doughnutSeries.Definition).LabelSettings.LabelOffset = 0.8d;

doughnutSeries.Definition.ItemLabelFormat = "#Y";

pieArea.DataSeries.Clear();

pieArea.DataSeries.Add(doughnutSeries);

pieArea.SmartLabelsEnabled = true;

pieLegend.Header = " ";

}

private void button1_Click(object sender, RoutedEventArgs e)

{

ConfigurePie();

}

Chart

answered on 29 Oct 2010

3 answers

59 views

Determine the row when doing a drag/drop on the grid.

This seems to be something that would have been requested before, but I just can't seem to find an example. Basically, I want to be able to drag some images files, from say, a file explorer window, and drop them on a gridview row. The row that the items are dropped on would most likely not be the selected row in the grid. Any help would be greatly appreciated. Thanks, Kevin.

GridView

answered on 29 Oct 2010