Questions on UI for WPF Forum

1 answer

96 views

I am adding items to the carousel at runtime. Although the items are added, none is displayed until I use the horizontal scroll bar.
How to bring the item in view when added?

Carousel

answered on 21 Oct 2010

1 answer

64 views

Header hyperlink

Hi..
How can I create Header hyperlink so when you click on the header it fires a hyperlink event?
For example my header will be file names and I want to open the file when the header is clicked.
thanks again

GridView

answered on 21 Oct 2010

3 answers

173 views

Many Point Data Problem

Binding to the DataTable when DataBinding multiple Row to the error

DataCode

public DataTable GetDataTable()

{

DataTable dataTable = new DataTable();

dataTable.Columns.Add("Time", typeof(DateTime));

dataTable.Columns.Add("DoubleData", typeof(double));

dataTable.Columns.Add("Time2", typeof(DateTime));

dataTable.Columns.Add("DoubleData2", typeof(double));

for (int index = 0; index <1000; index++)

{

DataRow dataRow = dataTable.NewRow();

dataRow["DoubleData"] = 21.7003078460693;

dataRow["DoubleData2"] = 21.7003078460693 + 10;

dataRow["Time"] = DateTime.Now.AddSeconds(index);

dataRow["Time2"] = DateTime.Now.AddSeconds(index+1);

dataTable.Rows.Add(dataRow);

}

return dataTable;

}

Chart Code

radChart.DefaultView.ChartArea.AxisX.LayoutMode = AxisLayoutMode.Auto;

radChart.DefaultView.ChartArea.AxisX.IsDateTime = true;

radChart.DefaultView.ChartArea.AxisX .DefaultLabelFormat = "hh:mm MM:ss";

radChart.DefaultView.ChartArea.AxisX.AutoRange = true;

SeriesMapping seriesMapping = new SeriesMapping();

LineSeriesDefinition lineSeriesDefinition = new LineSeriesDefinition();

ItemMapping YItem = new ItemMapping("DoubleData", DataPointMember.YValue);

ItemMapping XItem = new ItemMapping("Time", DataPointMember.XValue);

seriesMapping.LegendLabel = "1";

lineSeriesDefinition.ShowItemLabels = false;

lineSeriesDefinition.ShowPointMarks = false;

seriesMapping.SeriesDefinition = lineSeriesDefinition;

seriesMapping.ItemMappings.Add(YItem);

seriesMapping.ItemMappings.Add(XItem);

lineSeriesDefinition.ShowItemToolTips = true;

radChart.SeriesMappings.Add(seriesMapping);

SeriesMapping seriesMapping2 = new SeriesMapping();

LineSeriesDefinition lineSeriesDefinition2 = new LineSeriesDefinition();

ItemMapping YItem2 = new ItemMapping("DoubleData2", DataPointMember.YValue);

ItemMapping XItem2 = new ItemMapping("Time2", DataPointMember.XValue);

seriesMapping2.LegendLabel = "2";

lineSeriesDefinition2.ShowItemLabels = false;

lineSeriesDefinition2.ShowPointMarks = false;

lineSeriesDefinition2.ItemLabelFormat = "mm:dd hh:MM:ss";

seriesMapping2.SeriesDefinition = lineSeriesDefinition2;

seriesMapping2.ItemMappings.Add(YItem2);

seriesMapping2.ItemMappings.Add(XItem2);

radChart.SeriesMappings.Add(seriesMapping2);

radChart.ItemsSource = GetDataTable(); <-- Error

Error

No generic method 'Average' on type 'System.Linq.Enumerable' is compatible with the supplied type arguments and arguments. No type arguments should be provided if the method is non-generic.

What should I do?

Chart

answered on 21 Oct 2010

4 answers

151 views

AutomationPeer for RadTabControl and RadTabItem

Hello All,

Is Telerik planning on completing the AutomationPeer implementations of these two controls? The current implementation returns null for both control's OnCreateAutomationPeer() methods.

- Rashad Rivera
Omegus Prime, LLC

TabControl

answered on 20 Oct 2010

5 answers

434 views

Set DateTimeWatermarkContent from Style

Hi

I wanted to set the default DateTimeWatermarkContent for RadDatePicker from Style. At first it seemed not working (the default "Enter date" text appeared), later I have defined the property for each RadDatePicker manually and later removed these manual overrides for some reason. Surprisingly, the Style definition seemed to work now, but only in Visual Studio (I could even change the default value and the designer followed the changes). However, when I have run the application, my style definition was not used ("Enter date", again). Even stranger that from this point on, the designer "forgot" to use the style again as well.

What am I doing wrong? It is possible to set this property from Style?

My code:

<Window.Resources>

</Style>

</ResourceDictionary>

</Window.Resources>
...
<telerik:RadDatePicker Grid.Column="1" Grid.Row="0"></telerik:RadDatePicker>
<telerik:RadDatePicker Grid.Column="1" Grid.Row="2"></telerik:RadDatePicker>

...

Any ideas?

Thanks for the help in advance!

DateTimePicker

answered on 20 Oct 2010

1 answer

245 views

Modal Dialog is not truely Modal

Hello,

I wanted to make a suggestion for your next release of RadWindow. When it is active in a modal state (i.e. prompt or ShowDialog), it does not behave as one would expect. The Tab, Control, and Directional navigation does not operate in a manner that the customer would expect. If you go to your online demo, activate one of the Prompt samples. Than place focus in the address bar and start tabbing. You will notice that the controls behind the prompt get keyboard focus as well as Control and Navigation focus.

It would be great if your prompt was the only thing a user can focus to. I don't have to tell you how much of a problem this is in the case of protected (meaning that if I wanted a user to do something before gaining access to the main application a user can bybass my prompt and interact with the protected controls).

- Rashad Rivera

Window

answered on 20 Oct 2010

2 answers

126 views

Multibinding in RadTreeView

Hi, i've got a problem.
in my project i've a class like this :

public class Progetto

{

public Progetto()

{

ID = 0;

Descrizione = String.Empty;

Stringhe = new ObservableCollection<Stringa>();

Sprites = new ObservableCollection<Sprite>();

}

public int ID { set; get; }

public String Descrizione { set; get; }

public ObservableCollection<Stringa> Stringhe { set; get; }

public ObservableCollection<Sprite> Sprites { set; get; }

}

In my RadTree i'd like to see under the root node (Progetto) the two items "stringhe" and "sprites". I Tried with HierarchicalDataTemplate but with no result because under the root node i can only see "Stringhe" or "Sprites"... how to see that together ?? :

here my Hierrarchical..

<HierarchicalDataTemplate x:Key="Stringa">

<StackPanel Orientation="Horizontal">

<TextBlock Text="{Binding Ciao}" Foreground="Black" FontWeight="Bold" FontSize="12" />

<TextBlock Text="{Binding Descrizione}" Foreground="Black" FontWeight="Bold" FontSize="12" />

</StackPanel>

</HierarchicalDataTemplate>

<HierarchicalDataTemplate x:Key="Sprite">

<StackPanel Orientation="Horizontal">

<TextBlock Text="{Binding ID}" Foreground="Black" FontWeight="Bold" FontSize="12" />

<TextBlock Text="{Binding Descrizione}" Foreground="Black" FontWeight="Bold" FontSize="12" />

</StackPanel>

</HierarchicalDataTemplate>

<HierarchicalDataTemplate x:Key="Progetti" ItemsSource="{Binding Stringhe}"

ItemTemplate="{StaticResource Stringa}">

<StackPanel Orientation="Horizontal" >

<TextBlock Text="{Binding ID}" Foreground="Black" FontWeight="Bold" FontSize="12" />

<TextBlock Text="{Binding Descrizione}" Foreground="Black" FontWeight="Bold" FontSize="12" />

</StackPanel>

</HierarchicalDataTemplate>

Any Idea.. THANX IN ADVANCE

TreeView

answered on 20 Oct 2010

1 answer

86 views

Telerik without theme, or Windows 2000 classic theme

Hello,
is it possible to use Telerik controls without theme eq. mixing standard SL controls with Telerik's?

Teleriks themes is nice, but some conservative customers like old win32 application (Windows 98/2000 gray canvas).

How to use Telerik DataGrid with native Silverlight Button in one place?

Thanks

General Discussions

answered on 20 Oct 2010

2 answers

138 views

start edit mode on-key-down

Hello all,

First of all, I have done some searching on the Telerik forums (and using Google) to find my desired behavior, but I haven't been able to find quite what I'm looking for. If there is another post or how-to that I missed, please direct me there.

I am working with the WPF GridView control, and want to duplicate the behavior of the current WPF Toolkit DataGrid, with regards to editing. When you are focused on a cell (in the WPF DataGrid), you can immediately start typing, and the input cell will switch to edit mode and record that first key stroke, and continue in edit mode. (Think Microsoft Excel as another example.) I have been playing with the RadControls WPF Demo App, and cannot find any example that behaves in this fashion. Speed of data entry is a prime consideration for our users, and most will be using a tablet pc, so the act of double-clicking to change to edit mode makes for an inconvenient extra step.

Hopefully my description is clear... any help is greatly appreciated.
Thanks!
-Matt.

GridView

answered on 20 Oct 2010

1 answer

111 views

XamlParseException because of denied access to tmp-file

Hello,

i have some unsteady and non-reproducible XamlParseExceptions in the context of telerik RadGridView. These exceptions are caused by a denied access to tmp-files in the users temp-dir (eg: "C:\Users\XXX\AppData\Local\Temp\tmp7547.tmp").
The files content is binary (maybe some BAML?). The user is logged in as a normal user (not as administrator).
We are developing a desktop application using the RadGridView for WPF (2009.2) with .NET3.5 and Windows 7.

System.Windows.Markup.XamlParseException: Die in der Assembly "Telerik.Windows.Controls.GridView, Version=2009.2.813.35, Culture=neutral, PublicKeyToken=5803cfa389c90ce7" definierte Instanz von "FrozenColumnsSplitter" kann nicht erstellt werden. Ein Aufrufziel hat einen Ausnahmefehler verursacht.  Fehler in Objekt "PART_FrozenGridViewCellsPanel" in Markupdatei "Telerik.Windows.Controls.GridView;component/themes/office/black/DataCellsPresenter.xaml". ---> System.Reflection.TargetInvocationException: Ein Aufrufziel hat einen Ausnahmefehler verursacht. ---> System.UnauthorizedAccessException: Der Zugriff auf den Pfad "C:\Users\XXX\AppData\Local\Temp\tmp7547.tmp" wurde verweigert.

bei System.IO.__Error.WinIOError(Int32 errorCode, String maybeFullPath)

bei System.IO.File.Delete(String path)

bei System.Windows.Input.Cursor.LoadFromStream(Stream cursorStream)

bei System.Windows.Input.Cursor..ctor(Stream cursorStream)

bei Telerik.Windows.Controls.GridView.GridViewCursors.get_RefreezeCursor()

bei Telerik.Windows.Controls.GridView.FrozenColumnsSplitter..ctor()

   --- Ende der internen Ausnahmestapelüberwachung ---

   bei System.RuntimeTypeHandle.CreateInstance(RuntimeType type, Boolean publicOnly, Boolean noCheck, Boolean& canBeCached, RuntimeMethodHandle& ctor, Boolean& bNeedSecurityCheck)

   bei System.RuntimeType.CreateInstanceSlow(Boolean publicOnly, Boolean fillCache)

   bei System.RuntimeType.CreateInstanceImpl(Boolean publicOnly, Boolean skipVisibilityChecks, Boolean fillCache)

   bei System.Activator.CreateInstance(Type type, Boolean nonPublic)

   bei System.Windows.Markup.BamlRecordReader.CreateInstanceFromType(Type type, Int16 typeId, Boolean throwOnFail)

Does anyone have any ideas whats happening here and how to avoid it?

thanks
tim

GridView

answered on 20 Oct 2010