Dear team,

I have a problem when setting the IsDropDownOpenProperty on a RadComboBox, Yes, I know there's a similar post (that I've read) but that did not help me to solve my problem. ;)
I have a RadGridView, where the CellEditTemplate of a given column must change at runtime, depending on the type of row that is currently being edited.
So I have an event handler at the RadGridView SelectionChanged event, that determines the type of row (meaning the type of data we have inside it), and then dinamically builds a DataTemplate that is assigned to the grid column.
In one particular case, this template is a RadComboBox with a set of available values, and the core instructions that build this template are the followings:


Everything worked fine, until I introduced the 4th dependecy property, which is RadComboBox.IsDropDownOpenProperty because I clearly wanted the combo box to be displayed already opened.
The template is built correctly, but this gives me an error when it is going to be instantiated into my RadGridView's column.
The exception details are:

 (a bit long, sorry ... )

If I comment out the faulty line, the DataTemplate is instantiated correctly, and I can see my combo box in the RadGridView, but it is obviously closed, which is not fine for my case.
I also tried a similar, parallel case, where I replaced the RadComboBox with standard Windows WPF ComboBox, and I was surprised that I can use the ComboBox.IsDropDownOpenProperty without any problem, and the ComboBox that is built, is shown already opened just like I wanted it to be.

I would be happy to use a workaround also, to fix this.

Thanks a lot for your effort and do not hesitate to ask me any further information that may help you.

Kind Regards.

Max.

In thefollowing grid, it seems that the HeaderText attribute is ignored. Why is that?

Sorry to ask, but the documentation is thin or I am missing something.

When I put line in my xaml file:

<telerik:RadGridView Name="dataGrid" ColumnsWidthMode="Fill" IsReadOnly="True"  AutoGenerateColumns="False" DataLoadMode="Asynchronous"
                             RowIndicatorVisibility="Collapsed" VerticalAlignment="Stretch" HorizontalAlignment="Stretch" />

 after removing  ColumnsWidthMode="Fill" works ok





I get:


   w System.Windows.DependencyObject.SetValueCommon(DependencyProperty dp, Object value, PropertyMetadata metadata, Boolean coerceWithDeferredReference, OperationType operationType, Boolean isInternal)
   w System.Windows.DependencyObject.SetValue(DependencyProperty dp, Object value)
   w System.Windows.Controls.Primitives.ScrollBar.set_ViewportSize(Double value)
   w Telerik.Windows.Controls.GridView.ScrollBarStateController.UpdateScrollBar(ScrollBar scrollBar, ScrollBarProperties properties) w c:\Builds\WPF_Scrum\GridView_WPF_2009_Q2_SP1\Sources\Development\Controls\GridView\GridView\GridView\Virtualization\ScrollBarStateController.cs:wiersz 60
   w Telerik.Windows.Controls.GridView.ScrollBarStateController.UpdateVerticalScrollBarsProperties(ScrollBarProperties properties) w c:\Builds\WPF_Scrum\GridView_WPF_2009_Q2_SP1\Sources\Development\Controls\GridView\GridView\GridView\Virtualization\ScrollBarStateController.cs:wiersz 49
   w Telerik.Windows.Controls.GridView.GridViewScrollViewer.UpdateScrollBars() w c:\Builds\WPF_Scrum\GridView_WPF_2009_Q2_SP1\Sources\Development\Controls\GridView\GridView\GridView\Virtualization\GridViewScrollViewer.cs:wiersz 503
   w Telerik.Windows.Controls.GridView.GridViewScrollViewer.GridViewScrollViewer_LayoutUpdated(Object sender, EventArgs e) w c:\Builds\WPF_Scrum\GridView_WPF_2009_Q2_SP1\Sources\Development\Controls\GridView\GridView\GridView\Virtualization\GridViewScrollViewer.cs:wiersz 534
   w System.Windows.ContextLayoutManager.fireLayoutUpdateEvent()
   w System.Windows.ContextLayoutManager.UpdateLayout()
   w System.Windows.ContextLayoutManager.UpdateLayoutCallback(Object arg)
   w System.Windows.Media.MediaContext.InvokeOnRenderCallback.DoWork()
   w System.Windows.Media.MediaContext.FireInvokeOnRenderCallbacks()
   w System.Windows.Media.MediaContext.RenderMessageHandlerCore(Object resizedCompositionTarget)
   w System.Windows.Media.MediaContext.RenderMessageHandler(Object resizedCompositionTarget)
   w System.Windows.Threading.ExceptionWrapper.InternalRealCall(Delegate callback, Object args, Boolean isSingleParameter)
   w System.Windows.Threading.ExceptionWrapper.TryCatchWhen(Object source, Delegate callback, Object args, Boolean isSingleParameter, Delegate catchHandler)

Hello,

I have a grid.

I click on a cell and and a MouseUp event occurs.

I do what I do and then I want to cancel the focus of the cell without transferring the focus to a different cell.

Is that possible ?

Thanks,

Erez

Hey all,

I have a RadGrid on a Wpf page, it is goign to be loading data from a Astoria service. Right away, we need to bind it programatically - the declarative syntax won't work since I need to do some set up.

Ideally, I would grab a data subset and do the binding directly, but there is at least one problem... Astoria (int he release bits) doesn't support Count() so I cannot bind the grid directly. In other words, I cannot...

 

Instead I have to...

 

Which is seriously suboptimal because it means grabbing all the records over the wire to project them into the list so that the grid is happy with them. Ugly, ugly, ugly.

It gets even worse because since this is not the astoria CTP2, I can't do projections on the server, either which means I pull down all the columns for each record, even though I only need three for the grid. I need Id, Title and Sortweight. Of those, I need Id to be hidden, so that I can access it as a key when a user clicks on a row (I need to pull up a window for the edit) but the user is not bothered with it in the grid proper.

So here are my questions....

1. Has anyone managed a direct bind between a RadGridView and an astoria data service - am I barking up the wrong tree?
2. How do you give the RadGridView a list of columns to use from a programtically bound data source? I knwo how to declare the columns, but I am unsure how to tie them to the (future) properties of the anonymous type I will be binding after the projection. UniqueName didn't seem to be enough. The documentation is very weak in this reguard.
3. By any chance, does someone know the proper syntax for a lambda style .Select LINQ statement to pull multiple columns out?

Thanks!

We just downloaded the latest version of Telerik controls and we have noticed that the RadDataGrid for WPF has a misterious dot on the middle right hand side of the screen. (see atttached)

Any ideas where the dot / circle may be comming from?

If I attempt to open Example.xaml from the Docking project in the Examples_WPF.CS project installed by the Q3 beta the VS designer  errors on loading the xaml and I get the following error:

Error    28    Invalid XmlnsDeclaration occurs in assembly 'Telerik.Windows.Controls.Docking, Version=2009.3.916.35, Culture=neutral, PublicKeyToken=5803cfa389c90ce7'. XmlnsDeclaration references a namespace 'Telerik.Windows.Controls.GridView' that is not in the assembly.    C:\Program Files\Telerik\RadControls for WPF Q3 2009\Demos\Docking\FirstLook\Example.xaml    1    1    Examples_WPF.CS

Otherwise the project seems to build and run just fine.

Hi,

In "RadControls_for_WPF_2009_3_1016_TRIAL",
on the GridView->CustomFilterRow sample, when you choose to filter the Date column,
And selected date from the date picker the date is not shown in the text filter row.

Thanks

Hello,

I'm attempting to add and remove items to the RadTileView. I'm having trouble removing the item from the collection. I'm sure I'm missing something obvious.


When I click the button i get a KeyNotFoundException.
Any help would be appreciated.

Thanks again,
Boots

Hi,

I have following questions:

1. Can we have a RadGridView grouping similar to MS Outlook, where we have items grouped like "Today", "Yesterday" etc.
In the online samples, grouping works similar to that but it shows it as tree kind of and a vertical band line. Can we remove that (vertical band line on left side) and show the child items in simple row?

2. How we can add image to the Row selector (not as a column) and also how to add image to a column using code?
3. How we can hide (remove) RadGridView Header and Grouping title bar area?

Thanks,
Sanjeev