Questions on UI for WPF Forum

7 answers

383 views

Hi,

I have a fairly complex setup as shown below. I am using row details to act as an editor for the selected row in the gridview. I have Expand mode set to single so only one row can be expanded at a time. My question is how to validate data before the move to another row, or try to navigate elsewhere, or close the app, etc.? As you can see from the xaml, I tried wiring up the RowEditEnded command to the RowEditEnded event, but it doesn't seem to ever fire.

Any guidance would be greatly appreciated.

Thanks ... Ed

<telerik:RadGridView x:Name="ssSamples"

AutoGenerateColumns="False" IsReadOnly="True"

ItemsSource="{Binding RelativeSource={RelativeSource FindAncestor,

AncestorType={x:Type UserControl} },

Path=DataContext.Samples}"

SelectedItem="{Binding SelectedRow}"

MaxHeight="500" RowIndicatorVisibility="Visible" RowDetailsVisibilityMode="VisibleWhenSelected"

>

<telerik:EventToCommandBehavior.EventBindings>

<telerik:EventBinding Command="{Binding RowDetailsVisibilityChangingCommand}" EventName="RowDetailsVisibilityChanging" PassEventArgsToCommand="True"/>

<telerik:EventBinding Command="{Binding RowEditEndedCommand}" EventName="RowEditEnded" PassEventArgsToCommand="True"/>

</telerik:EventToCommandBehavior.EventBindings>

<telerik:RadGridView.Columns>

<telerik:GridViewToggleRowDetailsColumn ExpandMode="Single" />

<telerik:GridViewDataColumn Width="auto" Header="Sample Key" DataMemberBinding="{Binding Sample.Sample_Key}"/>

<telerik:GridViewDataColumn Width="auto" Header="Client Sample Id" DataMemberBinding="{Binding Sample.ClientSampleID}"/>

<telerik:GridViewDataColumn Width="auto" Header="Arrival" DataMemberBinding="{Binding ArrivalDesc}"/>

<telerik:GridViewDataColumn Width="auto" Header="Status" DataMemberBinding="{Binding Sample.Status}"/>

</telerik:RadGridView.Columns>

<telerik:RadGridView.RowDetailsTemplate>

<DataTemplate>

<Grid Width="Auto" HorizontalAlignment="Stretch">

<Grid.RowDefinitions>

<RowDefinition />

</Grid.RowDefinitions>

<Grid.ColumnDefinitions>

<ColumnDefinition Width="Auto" />

</Grid.ColumnDefinitions>

<Label Grid.Row="0" Grid.Column="0" Content="Client Sample Id:" VerticalAlignment="Top" />

<TextBox x:Name="txtSampleId" Grid.Row="0" Grid.Column="1"

HorizontalAlignment="Left" Text="{Binding Sample.ClientSampleID}" Width="250" />

<Label Grid.Row="1" Grid.Column="0" Content="Priority:" VerticalAlignment="Top" />

<telerik:RadComboBox x:Name="ddlPriority" Grid.Row="1" Grid.Column="1" HorizontalAlignment="Left"

VerticalAlignment="Top" Width="250"

SelectedValuePath="Tag"

SelectedValue="{Binding Sample.Priority, UpdateSourceTrigger=PropertyChanged }"

SelectedIndex="0"

>

<telerik:RadComboBoxItem Content="Low" Tag="Low"/>

<telerik:RadComboBoxItem Content="Medium" Tag="Medium"/>

<telerik:RadComboBoxItem Content="High" Tag="High"/>

</telerik:RadComboBox>

<Label Grid.Row="2" Grid.Column="0" Content="Arrival:" VerticalAlignment="Top" />

<telerik:RadComboBox x:Name="ddlArrival" Grid.Row="2" Grid.Column="1" HorizontalAlignment="Left"

VerticalAlignment="Top" Width="250" SelectedValuePath="Tag"

SelectedValue="{Binding Sample.Arrival, UpdateSourceTrigger=PropertyChanged }"

SelectedIndex="0"

>

<telerik:RadComboBoxItem Content="No" Tag="0"/>

<telerik:RadComboBoxItem Content="Park" Tag="1"/>

<telerik:RadComboBoxItem Content="Returned" Tag="2"/>

<telerik:RadComboBoxItem Content="Discarded" Tag="3"/>

</telerik:RadComboBox>

<Label Grid.Row="3" Grid.Column="0" Content="Status:" VerticalAlignment="Top" />

<telerik:RadComboBox x:Name="ddlStatus" Grid.Row="3" Grid.Column="1" HorizontalAlignment="Left"

VerticalAlignment="Top" Width="250"

SelectedValuePath="Tag"

SelectedValue="{Binding Sample.Status, UpdateSourceTrigger=PropertyChanged }"

SelectedIndex="0"

>

<telerik:RadComboBoxItem Content="Incomplete" Tag="Incomplete"/>

<telerik:RadComboBoxItem Content="Complete" Tag="Complete"/>

</telerik:RadComboBox>

<Label Grid.Row="4" Grid.Column="0" Content="Description:" VerticalAlignment="Top" />

<TextBox x:Name="txtSampleDesc" Grid.Row="4" Grid.Column="1" Grid.ColumnSpan ="2"

Text="{Binding Sample.SampleDescription }" Height="60" Width="250" HorizontalAlignment="Left"

TextWrapping="WrapWithOverflow" AcceptsReturn="True" VerticalScrollBarVisibility="Auto"

VerticalAlignment="Top" VerticalContentAlignment="Top"

/>

<Label Grid.Row="5" Grid.Column="0" Content="Comments:" VerticalAlignment="Top" />

<TextBox x:Name="txtSampleComments" Grid.Row="5" Grid.Column="1" Grid.ColumnSpan ="2"

Text="{Binding Sample.Comments }" Height="60" Width="250" HorizontalAlignment="Left"

TextWrapping="WrapWithOverflow" AcceptsReturn="True"

VerticalScrollBarVisibility="Auto" VerticalAlignment="Top" VerticalContentAlignment="Top"

/>

<Label Content="Associated Techniques:" Grid.Row="0" Grid.Column="2" HorizontalAlignment="Left" HorizontalContentAlignment="Left" Width="350" Height="auto"/>

<StackPanel Orientation="Vertical" Grid.Row="1" Grid.Column="2" Grid.RowSpan ="5" MaxHeight="210" >

<ItemsControl x:Name ="lstTechniques" ItemsSource="{Binding AssociatedTechniques, Mode=TwoWay }"

Margin="5,0,0,0"

>

<ItemsControl.ItemsPanel>

<ItemsPanelTemplate>

<support:UniformGridWithOrientation Orientation="Vertical" Columns="4" />

</ItemsPanelTemplate>

</ItemsControl.ItemsPanel>

<ItemsControl.ItemTemplate>

<DataTemplate >

<CheckBox Content="{Binding TechniqueID}"

IsChecked="{Binding IsSelected, Mode=TwoWay}"

ToolTip="{Binding TechniqueName}"

>

</CheckBox>

</DataTemplate>

</ItemsControl.ItemTemplate>

</ItemsControl>

</StackPanel>

</Grid>

</DataTemplate>

</telerik:RadGridView.RowDetailsTemplate>

</telerik:RadGridView>

GridView

answered on 29 Nov 2016

6 answers

562 views

[Solved] Clear radigridview filter descriptors when datasource updated

Hello
Because some action on my window alters datacontext attached to a radigridview, I need to reset applied filter when datasource is altered.
I tried to launch command myGried.FilterDescriptors.Clear(); on SourceUpdated, DatacontextChange and DataLoaded event, but the first 2 aren't raised when RaisePropertyChange is raised, the last one (DataLoaded event) is raised but when I tried to clear FilterDescriptors, I got error that I can't alter datasource when loading.

Any idea how can I clear FilterDescriptors when datacontext change?

Thanks

GridView

answered on 29 Nov 2016

1 answer

122 views

Update summary after INotifyPropertyChanged

I have a GridView whose ItemsSource binding to an ObservableCollection. The item in the collection implements INotifyPropertyChanged. After I update a property in the item code behind for example 'Price', the related SumFunction in GridViewDataColumn doesn't update. I don't want to call GridView.CalculateAggregates method. Is there any way to solve this problem.

GridView

answered on 29 Nov 2016

3 answers

272 views

WPF45 Documents assemblies wrong version number

Directory: UI for WPF R3 2016/Binaries.NoXaml/WPF45.

I noticed that Telerik.Windows.Documents.xxx assemblies e. g.

Telerik.Windows.Documents.Core.dll
Telerik.Windows.Documents.Spreadsheet.dll
Telerik.Windows.Documents.Flow.dll
etc.

all have a version number of 2016.3.1021.40 where I had actually expected 2016.3.1021.45. At least in former releases these assemblies ended in .40/.45. Now they have the same version number as the assemblies under /WPF40. This is somewhat confusing and can lead to errors.

Regards
Heiko

General Discussions

answered on 29 Nov 2016

1 answer

443 views

Trying to change Background color of TextBox within RadComboBox

I am trying to color the Background of the TextBox within the RadComoboBox to be Pink is the search typed in fails.

<Style TargetType="TextBox" x:Key="CustomComboTextBoxStyle" >

<Style.Triggers>

<DataTrigger Binding="{Binding SearchFailed}" Value="true">

<Setter Property="Background" Value="LightPink" />

</DataTrigger>

<DataTrigger Binding="{Binding SearchFailed}" Value="false">

<Setter Property="Background" Value="White" />

</DataTrigger>

</Style.Triggers>

</Style>

When I run, the SearchFailed is false and the background is white and that appears to work. But when SearchFailed is true, the background does not change.

public bool SearchFailed

{

get { return _searchFailed; }

set

{

_searchFailed = value;

NotifyPropertyChanged( "SearchFailed" );

}

Is there something I need to do to tell the RadComboBox to update?

ComboBox

answered on 28 Nov 2016

2 answers

122 views

[Solved] VS2013 Exception with DesignTime assemblies

Since updating to the latest R3 2016 I get exceptions when loading a XAML form/window/control in these three assemblies from VS ShadowCache:

Telerik.Windows.Controls.GridView.Design.5.0.dll
Telerik.Windows.Controls.Pivot.Design.5.0.dll
Telerik.Windows.Controls.PivotFieldList.Design.5.0.dll

I cleared the whole ShadowCache folders, deleted all assemblies from my project/bin folder and did a clean rebuild, but the error message still appears. There is no specific error message except "Exception has been thrown by the target of an invocation". I can still work with VS but the error messages are very annoying.

Regards
Heiko

General Discussions

answered on 28 Nov 2016

4 answers

174 views

Drag and Drop issue- while moving the grid in Windows 10 Anniversary update

I have used telerik control for RadGridView in our application . With one application (Windows forms) it is behaving properly (windows 10 anniversary update)i.e it is getting dragged and droped but when i am trying the same thing in some other application we do not see the same behavior.

Description:

In second (WPF) application in UI we are not able to drag /drop the grid ( in windows 10 anniversary update) while in windows 8 we are able to perform both drag and drop operations.

The Telerik version which we are using is 2011.3.1220.40

.Net version of the Components- 4.0

Below are the properties used in telerik grid:

<telerik:RadGridView x:Name="SrResultsGridView"
Controls:StyleManager.Theme="Office_Blue"
AutomationProperties.AutomationId="SrResultsGridView"
AutoGenerateColumns="False"
AutoExpandGroups="True"
CanUserFreezeColumns="False"
AllowDrop="True"
CanUserDeleteRows="False"
ActionOnLostFocus="None"
AreRowDetailsFrozen="True"
CanUserInsertRows="False"
ClipToBounds="True"
IsScrolling="False"
UseLayoutRounding="True"
SelectionMode="Extended"
ClipboardPasteMode="Default"
IsReadOnly="True"
IsFilteringAllowed="False"
VirtualizingStackPanel.IsVirtualizing="True"

Can you help me with this if it is compatibality issue with win 10 Anniversary update or some code changes need to be done so that it works properly.

Regards,

Md Ahtesham

GridView

answered on 28 Nov 2016

1 answer

411 views

Set an Icon in a Theme to apply to all RadWindows

Hi Telerik team,

What i'm trying to achieve is very simple, I just want to set an Icon image to RadWindow Template so it will be reflected in every RadWindow instances I create later:

- I'm using Windows 8 theme and I have copied the needed XAML files.
- The image is a .ico file from the folder "Resources\MyImage.ico"

Although I have search in the documentation and in the forums I couldn't find a solution that find my needs, I do not want to use code behind to set the icon in every window.

I'm looking forward your response.

Best regards,
Pedro Galusso

General Discussions

answered on 28 Nov 2016

1 answer

60 views

Vista theme set fontsize globel

Hello,

In my project I want to use Vista theme,How can I set fontsize globel like office2013 VisualStudio2013 etc?

eg:

VisualStudio2013Palette.Palette.FontSizeS = 13;
VisualStudio2013Palette.Palette.FontSize = 15;
VisualStudio2013Palette.Palette.FontSizeL = 17;

what should I do?

General Discussions

answered on 28 Nov 2016

3 answers

166 views

RadGridView Grouping on collection

Greetings,

I've been using telerik grids for a long time now and been facing an issue lately or lack of my knowledge when it comes to grouping by the collection (not a property). Here's my scenario, I'm showing list of employees in the grid, each employee can have multiple roles and I want to group the data by roles and each group will list all the employees under that role.

I am binding my employees collection to a collectionviewsource and adding the groupdescriptions (collection of employee roles) but it ain't showing anything. I wanted to ask if it is possible to group by the collection in such a scenario? Thank you team telerik

GridView

answered on 28 Nov 2016