Questions on UI for WPF Forum

2 answers

152 views

ColumnReorder Drop Icon Issue with GridViewDataColumn

Hi,

I am using RadTreeListView to display the data hierarchy in UI. I have a requirement to shuffle/re-order the columns. I had achieved this functionality by setting CanUserReorderColumns property to True.

UI:

Three Data Columns Naming - Col1|Col2|Col3

XAML is written such a way that Col1 is freezed (cannot reorder) setting GridViewDataColumn.IsReorderable="False". Means Col2 & Col3 can reshuffle there positions.

Everything works well till this point. The issue is with DropIcon.

When I drag Col2 on top of Col1 a DropIcon showing cannot drop is displayed (that is expected), but from this point without dropping i drag Col2 on top Col3 still a cannot drop drop icon is display (actually user can drop Col2 on top of Col3 position).

Please let me know how to fix this issue.

Thanks,

Lakshman Siddireddy

TreeListView

answered on 12 Jan 2017

29 answers

777 views

WPF 'Frame' control not visible in floating window

Hi

I've got an app with some Telerik Docking contols, and in one of the RadPanes is a WPF Frame control, displaying a webpage. This works fine when the pane is docked, but when I undock the pane, the content disappears. It re-appears when I re-dock the pane. Any idea what is happening here?

XAML:

<telerik:RadPane Header="Test" CanDockInDocumentHost="False" Name="Tese"

ContextMenuTemplate="{x:Null}">

<telerik:RadPane.Content>

<Frame Name="HelpWebsite" Source="http://peaveyoxford.com/kc/index."></Frame>

</telerik:RadPane.Content>

</telerik:RadPane>

<telerik:RadPane Header="Help" CanDockInDocumentHost="False" Name="Help" ContextMenuTemplate="{x:Null}">

<telerik:RadPane.Content>

</telerik:RadPane.Content>

</telerik:RadPane>

<telerik:RadPane Header="Help" CanDockInDocumentHost="False" Name="Help" ContextMenuTemplate="{x:Null}">

<telerik:RadPane.Content>

<telerik:RadPane Header="Help" CanDockInDocumentHost="False" Name="Help" ContextMenuTemplate="{x:Null}">

<telerik:RadPane.Content>

</telerik:RadPane.Content>

</telerik:RadPane>

</telerik:RadPane.Content>

<telerik:RadPane Header="Help" CanDockInDocumentHost="False" Name="Help" ContextMenuTemplate="{x:Null}">

<telerik:RadPane.Content>

</telerik:RadPane.Content>

</telerik:RadPane>

Thanks
Tom Davies
Peavey Digital Research.

Docking

answered on 11 Jan 2017

4 answers

445 views

[Solved] An example of reloading the graphsource and diagram updating correctly

Hi. I've been working off of the OrgChart example, which is a great example and is exactly what I need. However, I'm still having issues when updating the graph source and having that layout correctly. Now, all the nodes get stacked on top of each other. Can you provide an example of how to get this working? Take for example, the OrgChart sample app and provide a new demo where you can click a button and have it reload a completely new data set and have that layout correctly in the diagram?

Thanks very much

Diagram

answered on 11 Jan 2017

3 answers

313 views

VariableSizedWrapGrid equivalent?

http://stackoverflow.com/questions/19590930/fluid-layout-wrap-panel-variablesizedwrapgrid-in-desktop-applications

How best to build something like that with Telerik WPF?

General Discussions

answered on 11 Jan 2017

1 answer

153 views

Collapsed the content control

Hello,

it is possible to collapse the content area of the RadOutlookBar?

I want to show the item list at the start of the application. At this moment any item is selected. Only when the user selects an item then the content should showed on the content area.

Thank for tipps,

Richrad

OutlookBar

answered on 11 Jan 2017

1 answer

173 views

Binding difficulty

I have the following xaml for a button in the column header of my gridview.

<telerik:GridViewDataColumn Width="auto" >

<telerik:GridViewDataColumn.Header>

<Button Content="Add New" x:Name="cmdAddNew"

Command="{Binding DataContext.AddCommand,

RelativeSource={RelativeSource FindAncestor,

AncestorType={x:Type UserControl}}}"

Margin="0,5,5,5"/>

</telerik:GridViewDataColumn.Header>

</telerik:GridViewDataColumn>

When I run the app I get the following error:

System.Windows.Data Error: 4 : Cannot find source for binding with reference 'RelativeSource FindAncestor, AncestorType='System.Windows.Controls.UserControl', AncestorLevel='1''. BindingExpression:Path=DataContext.AddCommand; DataItem=null; target element is 'Button' (Name='cmdAddNew'); target property is 'Command' (type 'ICommand')

I can't make heads or tails of what is wrong.

The really strange part is if I add a click handler to my view and call:

var vm = (TechniquesViewModel) this.DataContext;
vm.AddCommand.Execute(null);

Everything works perfect.

What am I missing? I know I shouldn't be putting that code in my view, but I can't make it work with the xaml I have.

Thanks ... Ed

GridView

answered on 11 Jan 2017

7 answers

207 views

Port Visibility

Hi,

We have a few classes that inherits from our CustomShape class that inherits from RadDiagramShape, we also have a CustomConnector (inherits from RadDiagramConnector) class and we would like to have our ports always visible, we did try to edit the default template of RadDiagramShape and change the visibility to visible but it is not working.

Would you be able to tell us to change the visibility of the ports to make them visible even when the shape is not clicked?

Thanks!

Diagram

answered on 11 Jan 2017

1 answer

400 views

Show busy indicator while doing a background job using WindowsFormsHost?

<telerik:RadBusyIndicator IsIndeterminate="True" Grid.Row="1" Grid.ColumnSpan="2" IsBusy="False" x:Name="MainIndicator">

<Grid x:Name="grdChart">

<WindowsFormsHost Name="host" Background="Black" >

</WindowsFormsHost>

</Grid>

</telerik:RadBusyIndicator>

public void ActiveXControlDataLoaded()

{

this.Dispatcher.BeginInvoke(new System.Action(() =>

{

MainIndicator.IsBusy = true;

}));

}

The above XAML code is showing WindowsFormsHost element that is used to host an ActiveX control.

ActiveXControlDataLoaded method will be fired by the ActiveX control whenever it has a new data record.

My problem is RadBusyIndicator is always getting behind WindowsFormsHost element when the later UI is loaded. I tried to disable WindowsFormsHost and Its ActiveX control child but RadBusyIndicator keeps disappearing. Is there any way to show RadBusyIndicator on top of WindowsFormsHost ?

Thanks in advance.

BusyIndicator

answered on 11 Jan 2017

2 answers

197 views

RadPivotGrid RadPersistenceManager XML

Hi,

I have added RadPivotGrid to my vb.net page and RadPersistenceManager . I managed to save and load the user current state with the following:

RadPersistenceManager1.StorageProviderKey = fileId
RadPersistenceManager1.SaveState()

However, I need to get the XML and save the XML in the db and then load the xml when user clicks the load button.

How do I get the XML for the current state?

Thanks

PivotGrid

answered on 11 Jan 2017

5 answers

616 views

'ToolTip' cannot have a logical or visual parent

I have tried to set up a gridview which includes a date column.

If I have an invalid input for a date column, I get a validation error -> That is OK.

If I THEN use the dropdown to choose a date, the program crashes with the following exception: 'ToolTip' cannot have a logical or visual parent.

My GridViewColumn

<telerik:GridViewComboBoxColumn x:Name="InputValueComboBox" Header="ABC" ItemsSourceBinding="{Binding Inputs}" DataMemberBinding="{Binding Input, ValidatesOnDataErrors=True}" IsComboBoxEditable="True" SelectedValueMemberPath="Value" DisplayMemberPath="Value" SortMemberPath="Value" Width="Auto" CellEditTemplateSelector="{StaticResource InputValueEditTemplateSelector}" />

My TemplateSelector:

<DataTemplate x:Key="DateValueEditTemplate">

<Grid>

<Grid.ColumnDefinitions>

<ColumnDefinition Width="*"/>

<ColumnDefinition Width="Auto"/>

</Grid.ColumnDefinitions>

<TextBox Grid.Column="0" Text="{Binding Input, Mode=TwoWay}" />

<telerik:RadDropDownButton x:Name="FilterCalendarDropdown" Grid.Column="1" AutoOpenDelay="0:0:0.0">

<telerik:RadDropDownButton.DropDownContent>

<telerik:RadCalendar SelectedDate="{Binding DateValue, Mode=TwoWay}" SelectionChanged="OnSelectionChanged" />

</telerik:RadDropDownButton.DropDownContent>

</telerik:RadDropDownButton>

</Grid>

</DataTemplate>

<styleSelectors:PropertyValueDataTemplateSelector x:Key="InputValueEditTemplateSelector" DateTemplate="{StaticResource DateValueEditTemplate}" />

Any idea to solve the problem?

GridView

answered on 10 Jan 2017