Questions on UI for WPF Forum

6 answers

388 views

Get values of selected row in child grid

How can I get the values of the row selected in the child grid of a hierachical grid.

My hierarchical GridView is bound to the results of an OData service:
ApprovalRequests
..Approvals

In a button click event I want to access the selected values.

GridView

answered on 29 Sep 2010

1 answer

98 views

DragAndDrop from RadTreeView to RadGridView

I have a RadtreeView that is already populated and a RadgridView on the same window. I want to drag a node from the tree to a particular (row/column) cell in the RadGridView. I have a few qiestions:

1 ----> Is this possible? (as I have not done this before)
2 ----> Should I be setting the whole grid to accept drops or just the cells individually?
3 ----> How do write the binding in the xaml if I am going to drop a treenode into the cell ?
4 ----> What are the major event handlers that I should be concerned with no both the tree side (while dragging the node) and the RadGrid side (while dropping the node) ?

Eagerly awaiting your reply. Thanks.

General Discussions

answered on 29 Sep 2010

3 answers

73 views

How to have a grid that isn't editable but where we can insert NEW element?

Hi!

For a project I've to have a list where we can insert new element but never delete/edit previous elements.

Have you an idea about how to do this with the RadGridView?

Thank you :)

GridView

answered on 29 Sep 2010

2 answers

177 views

HierarchyChildTemplate not showing items

Hello,

I am new at telerik-controls and trying to show some grid entrys with details (master-entry-shema).
My project includes an ObservableCollection. The items of the ObservableCollection are shown in the GridView. The ObservableCollection includes another ObservableCollection that should be shown in the HierarchyChildTemplate. But that don't works.

XAML:

<Window x:Class="Grobplanung.Window1"

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"

xmlns:telctrl="clr-namespace:Telerik.Windows.Controls;assembly=Telerik.Windows.Controls"

xmlns:telnav="clr-namespace:Telerik.Windows.Controls;assembly=Telerik.Windows.Controls.Navigation"

xmlns:telerikData="clr-namespace:Telerik.Windows.Data;assembly=Telerik.Windows.Data"

Title="Window1" Height="768" Width="1024" Loaded="Window_Loaded">

<DockPanel LastChildFill="False">

<telnav:RadToolBar Height="30" Name="radToolBar1"

DockPanel.Dock="Top"/>

<telnav:RadMenu Name="radMenu1"

DockPanel.Dock="Top">

<telerik:RadMenuItem Name="mnuDatei" Header="Datei">

<telerik:RadMenuItem Name="mnuBeenden" Header="Beenden">

</telerik:RadMenuItem>

<telerik:RadMenuItem Name="mnuBearbeiten" Header="Bearbeiten"/>

<telerik:RadMenuItem Name="mnuExtras" Header="Extras"/>

<telerik:RadMenuItem Name="mnuHilfe" Header="Hilfe"/>

</telnav:RadMenu>

<telerik:RadGridView Name="mainGV"

DockPanel.Dock="Top"

AutoGenerateColumns="False">

<telerik:RadGridView.ChildTableDefinitions>

<telerik:GridViewTableDefinition>

</telerik:GridViewTableDefinition>

</telerik:RadGridView.ChildTableDefinitions>

<telerik:RadGridView.Columns>

<telerik:GridViewDataColumn DataMemberBinding="{Binding VorgangsNr}"

Header="Auftrags-Nr." />

<telerik:GridViewDataColumn DataMemberBinding="{Binding KundenNr}"

Header="Kunden-Nr." />

<telerik:GridViewDataColumn DataMemberBinding="{Binding Kundenname}"

Header="Kundenname" />

<telerik:GridViewDataColumn DataMemberBinding="{Binding ArtikelNr}"

Header="Artikel-Nr."/>

</telerik:RadGridView.Columns>

<telerik:RadGridView.HierarchyChildTemplate>

<DataTemplate>

<telerik:RadGridView ItemsSource="{Binding Details}" Name="childGrid" ShowGroupPanel="False">

<telerik:RadGridView.Columns>

<telerik:GridViewDataColumn DataMemberBinding="{Binding Artikelbezeichnung}" Header="Artikelbezeichnung"/>

<telerik:GridViewDataColumn DataMemberBinding="{Binding Auftragsart}" Header="Auftragsart"/>

</telerik:RadGridView.Columns>

</telerik:RadGridView>

</DataTemplate>

</telerik:RadGridView.HierarchyChildTemplate>

</telerik:RadGridView>

</DockPanel>

</Window

>





class Auftragsdaten




class Auftragsdaten : INotifyPropertyChanged
 
{
    public Auftragsdaten()
    {
        Details = new ObservableCollection<Details>();
    }
 
    public ObservableCollection<Details> Details;
    public void AddDetails(string pArtikelbezeichnung, string pAuftragsart)
    {
        Details.Add(new Details() { Artikelbezeichnung = pArtikelbezeichnung, Auftragsart = pAuftragsart });
    }

............... 





class Details




class Details
{
    public string Artikelbezeichnung;
    public string Auftragsart;
}

code behind the window

public partial class Window1 : Window

{

private ObservableCollection<Auftragsdaten> _colDaten;

public Window1()

{

InitializeComponent();

}

private void Window_Loaded(object sender, RoutedEventArgs e)

{

_colDaten = new ObservableCollection<Auftragsdaten>();

_colDaten.Add(new Auftragsdaten() { VorgangsNr = 1, ArtikelNr = "47110", KundenNr = "1000", Kundenname = "Test" });

_colDaten.Add(new Auftragsdaten() { VorgangsNr = 2, ArtikelNr = "47110", KundenNr = "1000", Kundenname = "Test" });

_colDaten.Add(new Auftragsdaten() { VorgangsNr = 3, ArtikelNr = "47113", KundenNr = "2000", Kundenname = "Test" });

_colDaten.Add(new Auftragsdaten() { VorgangsNr = 4, ArtikelNr = "47114", KundenNr = "2000", Kundenname = "Test" });

_colDaten.Add(new Auftragsdaten() { VorgangsNr = 5, ArtikelNr = "47115", KundenNr = "3000", Kundenname = "Test" });

_colDaten.Add(new Auftragsdaten() { VorgangsNr = 7, ArtikelNr = "47115", KundenNr = "3000", Kundenname = "Test" });

_colDaten.Add(new Auftragsdaten() { VorgangsNr = 8, ArtikelNr = "47115", KundenNr = "3000", Kundenname = "Test" });

_colDaten.Add(new Auftragsdaten() { VorgangsNr = 9, ArtikelNr = "47115", KundenNr = "4000", Kundenname = "Test" });

_colDaten.Add(new Auftragsdaten() { VorgangsNr = 10, ArtikelNr = "47115", KundenNr = "4000", Kundenname = "Test" });

_colDaten[0].AddDetails("Staubsauger 3744", "Barverkauf");

_colDaten[0].AddDetails("Mixer 2231", "Barverkauf");

_colDaten[0].AddDetails("Toaster 112", "Barverkauf");

_colDaten[1].AddDetails("Staubsauger 3744", "Barverkauf");

_colDaten[1].AddDetails("Mixer 2231", "Barverkauf");

_colDaten[1].AddDetails("Toaster 112", "Barverkauf");

this.mainGV.ItemsSource = _colDaten;

}

Can you please help me?

GridView

answered on 29 Sep 2010

1 answer

149 views

FileLoadException

Using the latest WPF build, I am now having a problem in the designer:

System.IO.FileLoadException

Could not load file or assembly 'Telerik.Windows.Controls, Version=2010.2.917.40, Culture=neutral, PublicKeyToken=5803cfa389c90ce7' or one of its dependencies. Operation is not supported. (Exception from HRESULT: 0x80131515)

at System.Reflection.RuntimeAssembly._nLoad(AssemblyName fileName, String codeBase, Evidence assemblySecurity, RuntimeAssembly locationHint, StackCrawlMark& stackMark, Boolean throwOnFileNotFound, Boolean forIntrospection, Boolean suppressSecurityChecks) at System.Reflection.RuntimeAssembly.nLoad(AssemblyName fileName, String codeBase, Evidence assemblySecurity, RuntimeAssembly locationHint, StackCrawlMark& stackMark, Boolean throwOnFileNotFound, Boolean forIntrospection, Boolean suppressSecurityChecks) at System.Reflection.RuntimeAssembly.InternalLoadAssemblyName(AssemblyName assemblyRef, Evidence assemblySecurity, StackCrawlMark& stackMark, Boolean forIntrospection, Boolean suppressSecurityChecks) at System.Reflection.Assembly.Load(AssemblyName assemblyRef) at MS.Internal.Package.VSIsolationProviderService.RemoteReferenceProxy.VsReflectionResolver.GetRuntimeAssembly(Assembly reflectionAssembly) at Microsoft.Windows.Design.Metadata.ReflectionMetadataContext.CachingReflectionResolver.GetRuntimeAssembly(Assembly reflectionAssembly) at Microsoft.Windows.Design.Metadata.ReflectionMetadataContext.Microsoft.Windows.Design.Metadata.IReflectionResolver.GetRuntimeAssembly(Assembly reflectionAssembly) at MS.Internal.Metadata.ClrAssembly.GetRuntimeMetadata(Object reflectionMetadata) at Microsoft.Windows.Design.Metadata.AttributeTableContainer.<MergeAttributesIterator>d__c.MoveNext() at Microsoft.Windows.Design.Metadata.AttributeTableContainer.GetAttributes(Assembly assembly, Type attributeType, Func`2 reflectionMapper) at MS.Internal.Metadata.ClrAssembly.GetAttributes(ITypeMetadata attributeType) at MS.Internal.Design.Metadata.Xaml.XamlAssembly.get_XmlNamespaceCompatibilityMappings() at Microsoft.Windows.Design.Metadata.Xaml.XamlExtensionImplementations.GetXmlNamespaceCompatibilityMappings(IAssemblyMetadata sourceAssembly) at Microsoft.Windows.Design.Metadata.Xaml.XamlExtensions.GetXmlNamespaceCompatibilityMappings(IAssemblyMetadata source) at MS.Internal.Design.Metadata.ReflectionProjectNode.BuildSubsumption() at MS.Internal.Design.Metadata.ReflectionProjectNode.SubsumingNamespace(Identifier identifier) at MS.Internal.Design.Markup.XmlElement.BuildScope(PrefixScope parentScope, IParseContext context) at MS.Internal.Design.Markup.XmlElement.ConvertToXaml(XamlElement parent, PrefixScope parentScope, IParseContext context, IMarkupSourceProvider provider) at MS.Internal.Design.DocumentModel.DocumentTrees.Markup.XamlSourceDocument.FullParse(Boolean convertToXamlWithErrors) at MS.Internal.Design.DocumentModel.DocumentTrees.Markup.XamlSourceDocument.get_RootItem() at Microsoft.Windows.Design.DocumentModel.Trees.ModifiableDocumentTree.get_ModifiableRootItem() at Microsoft.Windows.Design.DocumentModel.MarkupDocumentManagerBase.get_LoadState() at MS.Internal.Host.PersistenceSubsystem.Load() at MS.Internal.Host.Designer.Load() at MS.Internal.Designer.VSDesigner.Load() at MS.Internal.Designer.VSIsolatedDesigner.VSIsolatedView.Load() at MS.Internal.Designer.VSIsolatedDesigner.VSIsolatedDesignerFactory.Load(IsolatedView view) at MS.Internal.Host.Isolation.IsolatedDesigner.BootstrapProxy.LoadDesigner(IsolatedDesignerFactory factory, IsolatedView view) at MS.Internal.Host.Isolation.IsolatedDesigner.BootstrapProxy.LoadDesigner(IsolatedDesignerFactory factory, IsolatedView view) at MS.Internal.Host.Isolation.IsolatedDesigner.Load() at MS.Internal.Designer.DesignerPane.LoadDesignerView()

---------------
It appears that VS is trying to load some dependent assembly from the web?

General Discussions

answered on 29 Sep 2010

1 answer

71 views

Need help on Bar Chart Auto Binding

Hi,

I'm using MVVM auto binding to create a Bar Chart

in my xaml,

<telerikChart:RadChart Width="200" Height="200" ItemsSource="{Binding DisplayedCapacitySeries}" Padding="3">

....

<telerik:SeriesMapping.ItemMappings>

<telerik:ItemMapping DataPointMember="YValue" FieldName="Capacity_TB"/>

<telerik:ItemMapping DataPointMember="XCategory" FieldName="CapacityName" />

</telerik:SeriesMapping.ItemMappings>

The chart was created at the first loading. However, the Chart is not refreshed when Caparity_TB is changed although INotifyPropertyChanged is implemented in the ViewModel class.

Also I want to show the legend with the CapacityName. I'm using LegendDisplayMode="DataPointLabel". However, the legend shows as "item 0 .. item 1" instead of the CapacityName on the XCategory.

Also how can I hide the legend header?

Thanks,

Chart

answered on 29 Sep 2010

1 answer

118 views

Update Radchart Seriesmappings and Itemsource using MVVM Backgroundworker

Hello,

I have a WPF application which incorporates the MVVM pattern. I have a viewmodel class which basically has two properties:

01.private SeriesMappingCollection _mapCollection;

02.private ArrayList _joints;

03.public SeriesMappingCollection MapCollection

04.{

05. get { return _mapCollection; }

06. set

07. {

08. if (_mapCollection != value)

09. {

10. _mapCollection = value;

11. OnPropertyChanged("MapCollection");

12. }

13. }

14.}

15.

16.public ArrayList Joints

17.{

18. get { return _joints; }

19. set

20. {

21. if (_joints != value)

22. {

23. _joints = value;

24. OnPropertyChanged("Joints");

25. }

26. }

27.}

The values of Mapcollection and Joints are set using a BackgroundWorker. When the data has been fetched, the GetAlertCompleted function is fired and the Mapcollection and Joints properties are set. This consequently fires the OnPropertyChanged() function of the view model

01.public ViewModel()

02.{

03. workerAlerts = new BackgroundWorker();

04. workerAlerts.DoWork += (o, args) => args.Result =

05. VizBackend.GetAlert.(_ipAdd,_selectedPeriod);

06.

07. workerAlerts.RunWorkerCompleted += GetAlertCompleted;

08.}

09.

10.private void GetAlertCompleted(object sender, RunWorkerCompletedEventArgs e)

11.{

12.

13. var alertData = e.Result as AlertData;

14. Joints = alertData.Joints;

15. MapCollection = alertData.MapCollection;

16. }

And in the main window I have:

01.private readonly ViewModel vm;

02.vm = (ViewModel)DataContext;

03.vm.PropertyChanged += VmPropertyChanged;

04.

05.private void VmPropertyChanged(object sender, PropertyChangedEventArgs e)

06. {

07. switch (e.PropertyName)

08. {

09. case "MapCollection":

10. this.radChart.SeriesMappings = vm.MapCollection;

11. break;

12.

13. case "Joints":

14. this.radChart.ItemsSource = vm.Joints;

15. break;

16. }

17. }

The problem is that when I assign the first property of the RadChart ( for example ItemsSource), I cant set the SeriesMappings property and I receive this error "The calling thread cannot access this object because a different thread owns it". I have no idea why this error is being raised. If I can set one property, why cant I set the second one. And it also doesnt matter in which order they are assigned. Once the first is assigned, I get an error for the second one.

I would appreciate if you could point out where the problem might be. Thanks.

Chart

answered on 29 Sep 2010

1 answer

142 views

Sample code for printing WPF grid data

Hi,

Can you please share sample code for printing WPF grid data using c#.

I tried the online demos avaliable at telerik site for GridView, it is showing "Example not supported in XBAP enviornment". I've tried silverlight code but showing errors.

Thanks,
-Narendra

GridView

answered on 29 Sep 2010

3 answers

158 views

IsNull or IsNotNull

Is there a way to filter by nulls ?

Thanks !

DataFilter

answered on 29 Sep 2010

1 answer

104 views

Display row count on raddatapager

Hello,

I am trying to display the row count on the raddatapager instead of footer. Is this possible? If so, is there an example somewhere?

Thank You in advance,
Kal

GridView

answered on 29 Sep 2010