Questions on UI for WPF Forum

6 answers

769 views

Hi, i have I need to use a treeview where you can select only leaf elements.
For my needs I created a treeview databinding with a HierarchicalDataTemplate.

I tried to disable the intermediate nodes, but this way I are also disabled child nodes.
How can I do?

This is the XAML

<UserControl.Resources>

<Style x:Key="containerStyle" TargetType="{x:Type telerik:RadTreeViewItem}">

<Setter Property="IsSelected" Value="{Binding IsSelezionato, Mode=TwoWay}" />

<Setter Property="IsExpanded" Value="{Binding IsEspanso, Mode=TwoWay}" />

<Setter Property="IsEnabled" Value="{Binding IsAttivo, Mode=OneWay}" />

</Style>

<HierarchicalDataTemplate x:Key="BreadMenuCrumpTemplateL1" ItemsSource="{Binding Children}" ItemContainerStyle="{StaticResource containerStyle}">

<TextBlock Text="{Binding Titolo}" Margin="0" VerticalAlignment="Stretch" />

</HierarchicalDataTemplate>

</UserControl.Resources>

<Grid x:Name="LayoutRoot">

<telerik:RadDropDownButton Content="{Binding TitoloElemento, Mode=OneWay}" Margin="0">

<telerik:RadDropDownButton.DropDownContent>

<telerik:RadTreeView x:Name="radTreeView" ItemsSource="{Binding TreeMenu.Children}" ItemTemplate="{StaticResource BreadMenuCrumpTemplateL1}" IsExpandOnSingleClickEnabled="True" IsExpandOnDblClickEnabled="False" IsSingleExpandPath="True" IsDragPreviewEnabled="False" IsDragTooltipEnabled="False" BringIntoViewMode="HeaderAndItems" SelectedItem="{Binding CurrentTreeItem, Mode=TwoWay}" IsEditable="False"/>

</telerik:RadDropDownButton.DropDownContent>

</telerik:RadDropDownButton>

</Grid>

TreeView

answered on 14 Aug 2015

2 answers

120 views

Copy + Paste issue

Hello

Same problem as in this post for ASP.NET

http://www.telerik.com/forums/autocompletebox-copy-paste-issue#p-j6IZLRhUajWZB6O__E_g

Can you let me know when this issue will be fixed?

Regards

Bianca

AutoCompleteBox

answered on 14 Aug 2015

5 answers

469 views

RadPathButton change path color

Hi,

I think it's not converniet to change path's color of RadPathButton.

Regards

Yang

Buttons

answered on 14 Aug 2015

1 answer

85 views

Try chart series type chage

Hi, I'm Lee

Currentrly, I try chage series type in 'RadCartesianChart'.

I use dynamic number of series.

Because I use 'CategoricalSeriesDescriptor.Style' in 'SeriesProvider'.

Chart style is adjusted 'BarSeriesStyle', 'PointSeriesStyle'.

But not adjust style 'LineSeriesStyle', 'SplineSeriesStyle', 'StepLineSeriesStyle'.

Wonderfully, 5 style is adjusted in new project.

I don't know why...

What should I do for it?

ps. I using NoXaml library.

ChartView

answered on 14 Aug 2015

1 answer

94 views

VisualizationLayer Items Virtualization and ShapeFill

Hello everyone,

I have a VisualizationLayer with ShapeFills set on the layer level by using

<telerik:VisualizationLayer.ShapeFill>

...

</telerik:VisualizationLayer.ShapeFill>

If the ShapeFill of the MapShapedata is changed in code (for example by selecting some elments from a list and then call .UseSelectedFill() ) and then a MapItemsRequest happens, the original ShapeFill of the items will be restored instead of keeping the "manually" set ShapeFill. How can I make them keep their ShapeFill ?

Map

answered on 14 Aug 2015

6 answers

252 views

RadDiagramConnection updates point collection on group selection

Hello,

I have a problem with ConnectionPoints collection in RadDiagramConnection.
As I've mentioned in thread title, RadDiagramConnection updates geometry on group selection (it only appears when two or more RadDiagramConnetion has been selected). As a result of geometry update, connection points on RadDiagramConnection are re-added (reset event and then add one by one).
I did not identify that problem when only one RadDiagramConnection is selected.

It lead's to problem in my scenario because I'm subscribing CollectionChanged event on that collection, so I got false info about points change (but it doesn't).
Could you please tell me how can I fix it? How can disable that geometry update on group RadDiagramConnection select?

Thanks in advance!

Diagram

answered on 14 Aug 2015

1 answer

219 views

RadImageEditor with ZoomController

Hello,;:

I have a RadImageEditor with ZoomController in order to zoom loaded pictures. The code looks like this:

<imaging:ZoomController ImageEditor="{Binding ElementName=imageEditor}" />
<telerik:RadImageEditor x:Name="imageEditor" Image="{Binding ImagePath}" HorizontalAlignment="Stretch"
                                    VerticalAlignment="Stretch" ScrollViewer.HorizontalScrollBarVisibility="Auto"
                                    ScrollViewer.VerticalScrollBarVisibility="Visible">
</telerik:RadImageEditor>

It works just fine. The problem is with the size of slider (zoomController), it is simply just too small. When i try to set the height or width it just does not work. Is there a way to make it bigger?

Regards

ImageEditor

answered on 13 Aug 2015

1 answer

221 views

Access RadGridView inside DataTemplate inside ResourceDictionary

My application is based on MVVM pattern. I want to access a RadGridView control/object, within Code-Behind of ResourceDictionary xaml to be able to use its Export method to export contents to an Excel file.

There's a UserControl XAML file which merges its resources with few individual ResourceDictionary xaml files. One of them is "ProdUnitResource.xaml" which has a DataTemplate control (x:key="ProdUnitVM"). This DataTemplate contains RadGridView control (Name="ProdUnitGrid". Cannot use x:key attribute since the parent control complains).

So, basically this is the structure -->

<UserControl> ProdUnit.xaml

<ResourceDictionary> ProdUnitResource.xaml (want to access "ProdUnitGrid" in code behind file ProdUnitResource.xaml.cs)

I want to be export contents of this grid to an Excel file on click of an Hyperlink called "Export". So, I created a code-behind file for the ResourceDictionary xaml called "ProdUnitResource.xaml.cs" and was able to add following click event handler method to it.

private void Export_Click(object sender, System.Windows.RoutedEventArgs e)

{ ExportFormat format = ExportFormat.ExcelML;

var dialog = new System.Windows.Forms.SaveFileDialog();

dialog.DefaultExt = "xls";

dialog.Filter = String.Format("Excel files (*.{0})|*.{0}|All files (*.*)|*.*", extension);

dialog.FilterIndex = 1;

if (dialog.ShowDialog() == System.Windows.Forms.DialogResult.OK)

{

using (Stream stream = dialog.OpenFile())

{

GridViewExportOptions exportOptions = new GridViewExportOptions();

exportOptions.Format = format;

exportOptions.ShowColumnHeaders = true;

ProdUnitGrid.Export(stream, exportOptions);

}

Click Event handling works fine but I am unable to directly use name of the RadGridView control "ProdUnitGrid" within code behind. It is not recognized. I want to access this RadGridView object so that I can call its Export method. Please share if you know how I can access it.

GridView

answered on 13 Aug 2015

2 answers

123 views

GridView data virtualization using IDataReader

Hi! I use telerik RadGridView to display Sql-server data. There are a lot of records need to display therefore it is necessary to implement virtualization. We use Entity Framework and for this way work this method:

_collection = new VirtualQueryableCollectionView(uow.GetQueryableEntities<Cfo>().OrderBy(x => x.ID)) { LoadSize = 6, VirtualItemCount = 100 };

where Cfo - ef entity.

But it is necessary display data from tables which are absent in DbContext. I implement IDataReader for sql query. From dataReader I get column names and types, after this I create new Type dynamically and Map DataReader to IList of dynamically type objects:

_fields = DataReaderHelper.GetDataReaderRows(dr);

var dynamicClass = DynamicTypeBuilder.CreateNewObject(_fields);

var dataReaderList = DataReaderHelper.DataReaderMapToList(dr, dynamicClass.GetType());

In the end I get this:

_collection = new VirtualQueryableCollectionView(dataReaderList.AsQueryable()) { LoadSize = 6 };

But there is a problem: virtualization is not work! VirtualQueryableCollectionView make only one query, like: "Select *From dbo.[SomethingObjects]".

May be somebody know, how to solve this problem!

Ps: there is the second problem using VirtualQueryableCollectionView this ef entities: when grouping does not work virtualization!

GridView

answered on 13 Aug 2015

6 answers

137 views

Set days/hours locked

Is it possible to set some time/day slots as locked, so that tasks cannot be put inside those slots?

Thanks

GanttView

answered on 13 Aug 2015