Questions on UI for WPF Forum

3 answers

140 views

<TabItem.header>
<textBlock>ABC</textBlock>
</TabItem.Header>

When I am modifying Header template like this then it's not raising tab click event but when I click somewhere to end corners of tabheader.Event fires.I think It is something related with bubble events Which is not working when modifying header.

Please help me for this.

TabControl

answered on 08 Oct 2009

5 answers

269 views

Cell Navigation

Hi,

The grid control looks good performance and feature wise.
However i was wondering how to switch on the cell-only/cell-row navigation (with keyboard) feature.

Can anybody suggest me on this?

Thanks,
Anurodh

GridView

answered on 08 Oct 2009

2 answers

223 views

Slider with small Width...

Hi.

I updated to Q2 2009 SP1 and now I have problem with small sliders (Width less than 56).
I use default theme (I think Office_black) and when I want to create slider with small Width it is not working right.

For example I want to do something like this:

myTestSlider = new Telerik.Windows.Controls.RadSlider();
myTestSlider.IsSnapToTickEnabled = true;
myTestSlider.TickPlacement = Telerik.Windows.Controls.TickPlacement.None;
myTestSlider.TickFrequency = 1;
myTestSlider.Focusable = false;
myTestSlider.Width = 34; // 8+20+6
myTestSlider.Minimum = 1;
myTestSlider.Maximum = 10;
Canvas.SetLeft(myTestSlider, 10);
Canvas.SetTop(myTestSlider, 10);
myTestCanvas.Children.Add(myTestSlider);

Slider Control has width 34 but its "internal" parts look and work like on width around 56 and so right part is not visible and goes beyond right border.
I don’t know if I am doing something wrong but currently I am not able to make small sliders.

Best regards,
Michal

Slider

answered on 08 Oct 2009

3 answers

449 views

How to populate Image in RadGridView by C# code

protected void RadGrid1_ItemDataBound(object sender, Telerik.Web.UI.GridItemEventArgs e)

{

if (e.Item is GridHeaderItem)

{

GridHeaderItem header = (GridHeaderItem)e.Item;

// to set the height of the Grid Header

header.Height = Unit.Pixel(20);

// to add an Image in the Grid Header

Image img=new Image();

img.ID = "Image1";

img.ImageUrl = "~/Image1.gif";

header["columnUniqueName"].Controls.Add(img);

}

}

Can anyone please let me know how to do above thing in WPF RADGRIDVIEW because radgridview dont have any event like ItemDataBound. I m also using Telerik.windows.control namaspace not Telerik.Web.UI.

Below is my Code

// I m adding Columns dynamically,

GridViewDataColumn IsUnRead = new GridViewDataColumn();
IsUnRead.Header = "R";
IsUnRead.UniqueName = "IsUnRead";
IsUnRead.Width = new GridLength(40);
this.gvEmail.Columns.Add(IsUnRead);

I want to have Image in header also dynamically by code.

Thanks in advance. Your view will be highly appreciated.

MIRAL SHAH

GridView

answered on 07 Oct 2009

1 answer

143 views

save/load radgridview settings, fix the example

I have seen several threads about this topic and all of them end with a reference to

http://blogs.telerik.com/vladimirenchev/posts/09-04-03/how_to_save_and_load_settings_with_radgridview_for_wpf.aspx

Unfortunately it is out of date, because it doesn’t work with the last Telerik release libraries version 2009.2.813.35. I have tried to fix but I can’t makes it works and serialize to save it. I feel like inventing the wheel!

Could someone from Telerik update it?

GridView

answered on 07 Oct 2009

1 answer

113 views

Unhandled exception in tree control

Hi,

I got this un-handled exception in tree control, even though I had try catch block in the code"

any idea on this what would be the reason?

One more thing its referring to a path which does not exists on my machine?

c:\Builds\WPF_Scrum\Navigation_WPF_2009_Q1_SP2\Sources\Development\Controls\Navigation\TreeView\RadTreeViewItem.Events.cs

Exception: Object reference not set to an instance of an object.

Stack Trace: at Telerik.Windows.Controls.RadTreeViewItem.HandleSingleClickFunctionality() in c:\Builds\WPF_Scrum\Navigation_WPF_2009_Q1_SP2\Sources\Development\Controls\Navigation\TreeView\RadTreeViewItem.Events.cs:line 816

at Telerik.Windows.Controls.RadTreeViewItem.OnHeaderMouseLeftButtonUp(Object sender, MouseEventArgs e) in c:\Builds\WPF_Scrum\Navigation_WPF_2009_Q1_SP2\Sources\Development\Controls\Navigation\TreeView\RadTreeViewItem.Events.cs:line 811

at System.Windows.Input.MouseButtonEventArgs.InvokeEventHandler(Delegate genericHandler, Object genericTarget)

at System.Windows.RoutedEventArgs.InvokeHandler(Delegate handler, Object target)

at System.Windows.RoutedEventHandlerInfo.InvokeHandler(Object target, RoutedEventArgs routedEventArgs)

at System.Windows.EventRoute.InvokeHandlersImpl(Object source, RoutedEventArgs args, Boolean reRaised)

at System.Windows.UIElement.ReRaiseEventAs(DependencyObject sender, RoutedEventArgs args, RoutedEvent newEvent)

at System.Windows.UIElement.CrackMouseButtonEventAndReRaiseEvent(DependencyObject sender, MouseButtonEventArgs e)

at System.Windows.UIElement.OnMouseUpThunk(Object sender, MouseButtonEventArgs e)

at System.Windows.Input.MouseButtonEventArgs.InvokeEventHandler(Delegate genericHandler, Object genericTarget)

at System.Windows.RoutedEventArgs.InvokeHandler(Delegate handler, Object target)

at System.Windows.RoutedEventHandlerInfo.InvokeHandler(Object target, RoutedEventArgs routedEventArgs)

at System.Windows.EventRoute.InvokeHandlersImpl(Object source, RoutedEventArgs args, Boolean reRaised)

at System.Windows.UIElement.RaiseEventImpl(DependencyObject sender, RoutedEventArgs args)

at System.Windows.UIElement.RaiseEvent(RoutedEventArgs args, Boolean trusted)

at System.Windows.Input.InputManager.ProcessStagingArea()

at System.Windows.Input.InputManager.ProcessInput(InputEventArgs input)

at System.Windows.Input.InputProviderSite.ReportInput(InputReport inputReport)

at System.Windows.Interop.HwndMouseInputProvider.ReportInput(IntPtr hwnd, InputMode mode, Int32 timestamp, RawMouseActions actions, Int32 x, Int32 y, Int32 wheel)

at System.Windows.Interop.HwndMouseInputProvider.FilterMessage(IntPtr hwnd, Int32 msg, IntPtr wParam, IntPtr lParam, Boolean& handled)

at System.Windows.Interop.HwndSource.InputFilterMessage(IntPtr hwnd, Int32 msg, IntPtr wParam, IntPtr lParam, Boolean& handled)

at MS.Win32.HwndWrapper.WndProc(IntPtr hwnd, Int32 msg, IntPtr wParam, IntPtr lParam, Boolean& handled)

at MS.Win32.HwndSubclass.DispatcherCallbackOperation(Object o)

at System.Windows.Threading.ExceptionWrapper.InternalRealCall(Delegate callback, Object args, Boolean isSingleParameter)

at System.Windows.Threading.ExceptionWrapper.TryCatchWhen(Object source, Delegate callback, Object args, Boolean isSingleParameter, Delegate catchHandler)

Exception Source: Telerik.Windows.Controls.Navigation

Thanks,

Bala

TreeView

answered on 07 Oct 2009

1 answer

148 views

Cell Validation

Hi,

I'm using WPF controls version 2009.2.904.35.

I need to make the RadGridView to validate cell value, make the background red and show a tooltip when the cell value is not correct. I tried using CellValidating event, modifying e.Cell.Background and setting tooltip using .NET SetTooltip utility function, but it works only for FIRST time. the rest of the modifications to the cell does not trigger the grid to be refreshed.

Can you please send me a common example which validates the cells in the beginning when loading the data, and further when cell values are updated.

Thanks a lot,

Ruben.

GridView

answered on 07 Oct 2009

1 answer

109 views

Is it possible to create a header row to a grid

Hi All,

I'd appreciate if someone can explain how to add a header row to a radgridview programmatically or via the XAML.

Attached is the result that I want to get.

Thanks,

Yaron.

GridView

answered on 07 Oct 2009

1 answer

83 views

blue screen with the online demo

hello

I have a recurrent problem with the WPF component online demo.

When playing with, I very oftent get the famous Windows Blue screen.
I don't have the issue with the VS version of the demo

Is there any known issue?

thanks

General Discussions

answered on 07 Oct 2009

1 answer

310 views

Chart and bar width

Hi,

I have a categorical 2D bar chart where I would like the bars to be a specific width (about 20) or at least minwidth 20 for the bars. Then I want the chart so expand it's width in case there are a lot of bars or categories. Basically take the space it needs.

Right now it seems like even if I don't set a width or only a min width the chart tries to cramp everything together instead of just expanding its width.

So the question is, how do i do that?

This is my current template:

                    <ControlTemplate TargetType="telerik:Bar">         
               <Canvas>         
                  <Rectangle x:Name="PART_DefiningGeometry"         
                             Height="{TemplateBinding ItemActualHeight}"         
                             RadiusX="2"         
                             RadiusY="2"         
                             Stroke="Transparent"         
                             StrokeThickness="1"         
                             MinWidth="20"         
                             Style="{TemplateBinding ItemStyle}" />         
               </Canvas>         
            </ControlTemplate>         

I attached a image that shows how it looks at the moment.

Chart

answered on 07 Oct 2009