Questions on UI for WPF Forum

8 answers

294 views

Programmatically expand/select node in virtualizing tree

Hi,

I want to check with you what is the right way to programmatically expand and select a node in a tree view which is using virtualization in recycling mode. The tree may be full of nodes and those nodes may not be visible on the screen at that moment.

Can you please provide a sample application which demonstrates how to achive that.

Thank you,
Ruben.

TreeView

answered on 29 Jul 2010

2 answers

182 views

Ignore SelectionChanged event when rowloaded?

Is there anyway to ignore the SelectionChanged event from the GridViewSelectColumn when the grid is loading?

When the grid is loading, I make the row selected during the rowloaded event based on a value in the row (to indicate something was "selected" in past use of the grid). I then want to have code in the selectionChanged method that kicks off based on what happens to these rows after the grid is loaded from the user interaction, but i can't seem to figure out how isolate the code to run only during this time and not every time it is selected in the rowloaded event.

Thanks.

GridView

answered on 29 Jul 2010

1 answer

104 views

RadTreeView Drag Handlers??

Guys,

not sure if this is something thats possible, but is it possible to make only certain parts of an item "Draggable"... having an area / control that is the drag point of the control... see exampeitem imaeg for the kinda of area i'm talking about on my control..

Hope this makes sense.

Cheers guys

TreeView

answered on 29 Jul 2010

18 answers

966 views

Change Column Header Text of Autogenerated Column

hy everybody,

I can not figure out how to change the column header caption of a column which was autogenerated since the radviewgrid's itemsource property is bound to a datatable. My code as listed below does not do the job.

with me.radgridview1
.columns(3).HeaderText = "Name"
end with

The headertext still shows the fieldname of the datatable.

Any suggestion is highly appreciated.

best regards,

Michael Lutz
BITsoft

GridView

answered on 29 Jul 2010

3 answers

172 views

Drag and Drop between Two TreeViews

I have a problem which only seems to occur when using the Telerik RAD tree views , instead of the standard WPF treeview control

On a basic level, I have an application that loops through an OLAP cube and returns data to the interface treeview. The treeview then displays the data in a format like below

+ Measure
Measure1
Measure2
Measure 3
Measure 4 etc

I want to be able to drag each individual node (e.g Measure 2 or Measure 3) into another treeview. However when dragging the measures, it drags the whole root (Measure) preventing me from separating the nodes.

Any idea how it could be made possible to drag individual nodes instead of the whole root??

The relevant XAML and XAML.cs is shown below

XAML

<Telerik:RadTreeView x:Name ="treeCube" IsDragDropEnabled ="True" Margin="250,174,41,158" Background="White" Telerik:StyleManager.Theme="Windows7" ToolTip="Drag" AllowDrop="True">

</Telerik:RadTreeView>

<Telerik:RadTreeView x:Name ="treeCubeTwo" IsDragDropEnabled ="True" Margin="0,174,-491,158" Background="White" Telerik:StyleManager.Theme="Windows7" Width="509" HorizontalAlignment="Right">

</Telerik:RadTreeView>

XAML.cs

private void LoadCube_Click(object sender, RoutedEventArgs e)

{

// get the cube schema

Helper helper = new Helper("demo01");

helper.Catalog = "Adventure Works DW 2008R2";

helper.Cube = "Adventure Works";

_cube = helper.GetCubeSchema();

// create an empty parameter set

_params = new ParameterSet();

// populate the left-hand treeview with cube schema

// measures

TreeViewItem measuresItem = new TreeViewItem();

measuresItem.Header = "Measures";

foreach (Measure measure in _cube.Measures)

{

TreeViewItem measureItem = new TreeViewItem();

measureItem.Header = measure.Caption;

measuresItem.Items.Add(measureItem);

}

treeCube.Items.Add(measuresItem);

TreeView

answered on 29 Jul 2010

3 answers

96 views

Autocomplete

Hi!

Is there an autocomplete textbox component for WPF interface with telerik?

Thank you!

General Discussions

answered on 29 Jul 2010

1 answer

98 views

Grid View Editable Combobox bug

Hi,
I got problem when i installed your latest release and found that when we change a combox value, it changes the combobox selected value on previous rows and set their selected items the same one I have put in new cell. Any idea?
Also when i rev erted my version to previous one, grid is working fine..
Thanks

GridView

answered on 29 Jul 2010

3 answers

159 views

Print preview table layout panel

Hi,

I have a form containing table layout control , I would like to print preview the tablelayout panel.
Currently I calculate the position of the controls and place them on the document for printing. But this will result in truncation of the controls which will not fit on the page.

Any samples will be of help.

Thank you.

General Discussions

answered on 29 Jul 2010

11 answers

831 views

Grid exception

Hi,

I  have my VSPackage extention for VS2010.
I have tried to use with the GridView in my custom window pane, but  I have exception.
I referenced are following assemblies :
            Telerik.Windows.Controls
            Telerik.Windows.Controls.Data
           Telerik.Windows.Controls.Input
            Telerik.Windows.Controls.GridView
            Telerik.Windows.Data

I don't know what is missing?
I use the 2010.2 version.

"System.Windows.Markup.XamlParseException: 'Initialization of 'Telerik.Windows.Controls.GridViewCheckBoxColumn' threw an exception.' Line number '34' and line position '66'.

---> System.Xaml.XamlObjectWriterException: Set property 'System.Windows.ResourceDictionary.Source' threw an exception.

---> System.Windows.Markup.XamlParseException: Set property 'System.Windows.ResourceDictionary.DeferrableContent' threw an exception.

---> System.Xaml.XamlObjectWriterException: Provide value on 'System.Windows.Baml2006.TypeConverterMarkupExtension' threw an exception.

---> System.IO.FileNotFoundException: Could not load file or assembly 'Telerik.Windows.Controls.Input, PublicKeyToken=5803cfa389c90ce7' or one of its dependencies. The system cannot find the file specified.

at System.Reflection.RuntimeAssembly._nLoad(AssemblyName fileName, String codeBase, Evidence assemblySecurity, RuntimeAssembly locationHint, StackCrawlMark& stackMark, Boolean throwOnFileNotFound, Boolean forIntrospection, Boolean suppressSecurityC

hecks)

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 System.Windows.Baml2006.Baml2006SchemaContext.ResolveAssembly(BamlAssembly bamlAssembly)

at System.Windows.Baml2006.Baml2006SchemaContext.GetAssembly(Int16 assemblyId)

at System.Windows.Baml2006.Baml2006SchemaContext.EnsureXmlnsAssembliesLoaded(String xamlNamespace)

at System.Windows.Baml2006.Baml2006SchemaContext.GetXamlType(String xamlNamespace, String name, XamlType[] typeArguments)

at System.Xaml.XamlSchemaContext.GetXamlType(XamlTypeName xamlT

ypeName)

at MS.Internal.Xaml.XamlContext.GetXamlType(XamlTypeName typeName, Boolean returnUnknownTypesOnFailure, Boolean skipVisibilityCheck)

at MS.Internal.Xaml.XamlContext.ResolveXamlType(String qName, Boolean skipVisibilityCheck)

at MS.Internal.Xaml.Context.ObjectWriterContext.ServiceProvider_Resolve(String qName)

at MS.Internal.Xaml.ServiceProviderContext.System.Windows.Markup.IXamlTypeResolver.Resolve(String qName)

at System.Windows.Markup.TypeTypeConverter.ConvertFrom(ITypeDescriptorContext context, CultureInfo culture, Object value)

at System.Windows.Baml2006.TypeConverterMarkupExtension.ProvideValue(IServiceProvider serviceProvider)

at MS.Internal.Xaml.Runtime.ClrObjectRuntime.CallProvideValue(MarkupExtension me, IServiceProvider serviceProvider)

--- End of inner exception stack trace ---

at MS.Internal.Xaml.Runtime.ClrObjectRuntime.CallProvideValue(MarkupExtension me, IServiceProvider serviceProvider)

at System.Xaml.XamlObjectWriter.Logic_Pro

videValue(ObjectWriterContext ctx)

at System.Xaml.XamlObjectWriter.Logic_AssignProvidedValue(ObjectWriterContext ctx)

at System.Xaml.XamlObjectWriter.WriteEndMember()

at System.Xaml.XamlWriter.WriteNode(XamlReader reader)

at System.Xaml.XamlServices.Transform(XamlReader xamlReader, XamlWriter xamlWriter, Boolean closeWriter)

at System.Windows.ResourceDictionary.EvaluateMarkupExtensionNodeList(XamlReader reader, IServiceProvider serviceProvider)

at System.Windows.ResourceDictionary.GetKeyValue(KeyRecord key, IServiceProvider serviceProvider)

at System.Windows.ResourceDictionary.SetKeys(IList`1 keyCollection, IServiceProvider serviceProvider)

at System.Windows.ResourceDictionary.SetDeferrableContent(DeferrableContent deferrableContent)

at System.Windows.Baml2006.WpfSharedBamlSchemaContext.<Create_BamlProperty_ResourceDictionary_DeferrableContent>b__168(Object target, Object value)

at System.Windows.Baml2006.WpfKnownMemberInvoker.SetValue(Object instance

, Object value)

at MS.Internal.Xaml.Runtime.ClrObjectRuntime.SetValue(XamlMember member, Object obj, Object value)

at MS.Internal.Xaml.Runtime.ClrObjectRuntime.SetValue(Object inst, XamlMember property, Object value)

--- End of inner exception stack trace ---

at System.Windows.Markup.XamlReader.RewrapException(Exception e, IXamlLineInfo lineInfo, Uri baseUri)

at System.Windows.Markup.WpfXamlLoader.Load(XamlReader xamlReader, IXamlObjectWriterFactory writerFactory, Boolean skipJournaledProperties, Object rootObject, XamlObjectWriterSettings settings, Uri baseUri)

at System.Windows.Markup.WpfXamlLoader.LoadBaml(XamlReader xamlReader, Boolean skipJournaledProperties, Object rootObject, XamlAccessLevel accessLevel, Uri baseUri)

at System.Windows.Markup.XamlReader.LoadBaml(Stream stream, ParserContext parserContext, Object parent, Boolean closeStream)

at System.Windows.Application.LoadBamlStreamWithSyncInfo(Stream stream, ParserContext pc)

at MS.Internal.AppMode

l.AppModelKnownContentFactory.BamlConverter(Stream stream, Uri baseUri, Boolean canUseTopLevelBrowser, Boolean sandboxExternalContent, Boolean allowAsync, Boolean isJournalNavigation, XamlReader& asyncObjectConverter)

at MS.Internal.AppModel.MimeObjectFactory.GetObjectAndCloseStream(Stream s, ContentType contentType, Uri baseUri, Boolean canUseTopLevelBrowser, Boolean sandboxExternalContent, Boolean allowAsync, Boolean isJournalNavigation, XamlReader& asyncObjectConverter)

at System.Windows.ResourceDictionary.set_Source(Uri value)

at System.Windows.Baml2006.WpfSharedBamlSchemaContext.<Create_BamlProperty_ResourceDictionary_Source>b__1c4(Object target, Object value)

at System.Windows.Baml2006.WpfKnownMemberInvoker.SetValue(Object instance, Object value)

at MS.Internal.Xaml.Runtime.ClrObjectRuntime.SetValue(XamlMember member, Object obj, Object value)

at MS.Internal.Xaml.Runtime.ClrObjectRuntime.SetValue(Object inst, XamlMember property, Object value)

--- End of inner ex

ception stack trace ---

at MS.Internal.Xaml.Runtime.ClrObjectRuntime.SetValue(Object inst, XamlMember property, Object value)

at MS.Internal.Xaml.Runtime.PartialTrustTolerantRuntime.SetValue(Object obj, XamlMember property, Object value)

at System.Xaml.XamlObjectWriter.SetValue(Object inst, XamlMember property, Object value)

at System.Xaml.XamlObjectWriter.Logic_ApplyPropertyValue(ObjectWriterContext ctx, XamlMember prop, Object value, Boolean onParent)

at System.Xaml.XamlObjectWriter.Logic_DoAssignmentToParentProperty(ObjectWriterContext ctx)

at System.Xaml.XamlObjectWriter.Logic_AssignProvidedValue(ObjectWriterContext ctx)

at System.Xaml.XamlObjectWriter.WriteEndMember()

at System.Xaml.XamlWriter.WriteNode(XamlReader reader)

at System.Xaml.XamlServices.Transform(XamlReader xamlReader, XamlWriter xamlWriter, Boolean closeWriter)

at System.Xaml.XamlServices.Transform(XamlReader xamlReader, XamlWriter xamlWriter)

at System.Windows.SystemResources

.ResourceDictionaries.LoadDictionary(Assembly assembly, String assemblyName, String resourceName, Boolean isTraceEnabled)

at System.Windows.SystemResources.ResourceDictionaries.LoadGenericDictionary(Boolean isTraceEnabled)

at System.Windows.SystemResources.FindDictionaryResource(Object key, Type typeKey, ResourceKey resourceKey, Boolean isTraceEnabled, Boolean allowDeferredResourceReference, Boolean mustReturnDeferredResourceReference, Boolean& canCache)

at System.Windows.SystemResources.FindResourceInternal(Object key, Boolean allowDeferredResourceReference, Boolean mustReturnDeferredResourceReference)

at System.Windows.StyleHelper.GetThemeStyle(FrameworkElement fe, FrameworkContentElement fce)

at System.Windows.FrameworkContentElement.UpdateThemeStyleProperty()

at System.Windows.FrameworkContentElement.OnThemeStyleKeyChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)

at System.Windows.DependencyObject.OnPropertyChanged(DependencyPropertyChangedEventArg

s e)

at System.Windows.FrameworkContentElement.OnPropertyChanged(DependencyPropertyChangedEventArgs e)

at System.Windows.DependencyObject.NotifyPropertyChange(DependencyPropertyChangedEventArgs args)

at System.Windows.DependencyObject.UpdateEffectiveValue(EntryIndex entryIndex, DependencyProperty dp, PropertyMetadata metadata, EffectiveValueEntry oldEntry, EffectiveValueEntry& newEntry, Boolean coerceWithDeferredReference, Boolean coerceWithCurrentValue, OperationType operationType)

at System.Windows.DependencyObject.SetValueCommon(DependencyProperty dp, Object value, PropertyMetadata metadata, Boolean coerceWithDeferredReference, Boolean coerceWithCurrentValue, OperationType operationType, Boolean isInternal)

at System.Windows.DependencyObject.SetValue(DependencyProperty dp, Object value)

at System.Windows.FrameworkContentElement.set_DefaultStyleKey(Object value)

at Telerik.Windows.Controls.GridViewColumn.ResetDefaultStyleKey()

at Telerik.Windows.Controls.GridVi

ewColumn.OnInitialized(EventArgs e)

at System.Windows.FrameworkContentElement.TryFireInitialized()

at System.Windows.FrameworkContentElement.EndInit()

at MS.Internal.Xaml.Runtime.ClrObjectRuntime.InitializationGuard(XamlType xamlType, Object obj, Boolean begin)

--- End of inner exception stack trace ---

at System.Windows.Markup.XamlReader.RewrapException(Exception e, IXamlLineInfo lineInfo, Uri baseUri)

at System.Windows.Markup.WpfXamlLoader.Load(XamlReader xamlReader, IXamlObjectWriterFactory writerFactory, Boolean skipJournaledProperties, Object rootObject, XamlObjectWriterSettings settings, Uri baseUri)

at System.Windows.Markup.WpfXamlLoader.LoadBaml(XamlReader xamlReader, Boolean skipJournaledProperties, Object rootObject, XamlAccessLevel accessLevel, Uri baseUri)

at System.Windows.Markup.XamlReader.LoadBaml(Stream stream, ParserContext parserContext, Object parent, Boolean closeStream)

at System.Windows.Application.LoadComponent(Object component, Uri r

esourceLocator)

at DeveloperTools.PagePaneControl.InitializeComponent()

at DeveloperTools..UI.MainPage.PagePaneControl..ctor()

GridView

answered on 29 Jul 2010

1 answer

62 views

Anyone else finding that RadNumericUpDown.SelectAll() doesn't work in 2010 Q2?

I could have sworn it worked fine in Q1....

NumericUpDown

answered on 29 Jul 2010