Questions on UI for WPF Forum

1 answer

144 views

General WPF

Hello Forum!

Is this a place to only discuss telerik products or is this also a place for people just learning WPF?

General Discussions

answered on 26 Jan 2010

4 answers

250 views

Row selected handler

Hello,

I attached event handler for GridViewRow Selected event by eventSetter.
But i getting "Handler type is not valid" exception.

    
            void Row_Selected(object sender, RoutedEventArgs e){}

    
            <Style TargetType="telerik:GridViewRow">  
        
                 <EventSetter Event="Selected" Handler="Row_Selected"/>  
        
            </Style>

What should be the right handler type for this event?

Basicly what I'm trying to do is after the data is loaded to set programaticly the second colomn of Grid to current and in edit mode.
Additionaly on arrow navigartion Up/Down current cell should be updated to the up/down cell in the same colomn and always current cell should be in edit mode.

Thank you

GridView

answered on 26 Jan 2010

3 answers

207 views

Dynamic background color in Grid Cell.

Hi, i'm new on Telerik for WPF,

And i have some issue :

My grid is dynamiclly refreshed with prices, in the cells.
And i want to have my Cell's background change to green when the new price is bigger than the old one,
and change to a Red Background if my new price is lower than the old one.

So, i need to do this in the codebehind (i guess), but i'm not able to find the cell's background color properties there.

Can someone explain me how to do this ?

Thanks for your support.

GridView

answered on 26 Jan 2010

1 answer

63 views

We are getting excessive Null Reference Exceptions

We are getting an excessive amount of Null Reference Exceptions from the Telerik grid. We are using the latest build that was released on Jan 14th. We only use the grid in a read only fashion. We use it as a work queue listing. We refresh the data quite frequently. We are setting the ItemsSource, we do NOT call Rebind(), we DO reset SelectedItem and if not null we call the ScrollIntoView method. All grid operations are in Try/Catch blocks. Since these null exceptions are happening inside the Telerik DLL's our application is crashing

GridView

answered on 26 Jan 2010

2 answers

434 views

Downloading http://server/..../Telerik.Windows.Data.dll did not succeed. + The remote server returned an error: (404) Not Found.

Hi,

We are using Telerik WPF Rad controls for developing our future WPF web application and facing some problems. For one of the problems I have pasted my error log :

====================================================================================================

PLATFORM VERSION INFO
Windows : 5.2.3790.131072 (Win32NT)
Common Language Runtime : 2.0.50727.3053
System.Deployment.dll : 2.0.50727.3053 (netfxsp.050727-3000)
mscorwks.dll : 2.0.50727.3053 (netfxsp.050727-3000)
dfshim.dll : 4.0.20506.1 (Beta1.020506-0100)

SOURCES
Deployment url : http://its-hipl-serv/wcf/version11/version11%20Web.xbap
Application url : http://its-hipl-serv/wcf/version11/Application%20Files/version11%20Web_1_0_0_13/version11%20Web.exe.manifest

IDENTITIES
Deployment Identity : version11 Web.xbap, Version=1.0.0.13, Culture=en, PublicKeyToken=c186ad621efd8b01, processorArchitecture=msil
Application Identity : version11 Web.exe, Version=1.0.0.13, Culture=en, PublicKeyToken=c186ad621efd8b01, processorArchitecture=msil, type=win32

APPLICATION SUMMARY
* Online only application.
* Browser-hosted application.

ERROR SUMMARY
Below is a summary of the errors, details of these errors are listed later in the log.
* An exception occurred while downloading the application. Following failure messages were detected:
+ Downloading http://its-hipl-serv/wcf/version11/Application Files/version11 Web_1_0_0_13/Telerik.Windows.Data.dll did not succeed.
+ The remote server returned an error: (404) Not Found.

COMPONENT STORE TRANSACTION FAILURE SUMMARY
No transaction error was detected.

WARNINGS
There were no warnings during this operation.

OPERATION PROGRESS STATUS
No phase information is available.

ERROR DETAILS
Following errors were detected during this operation.
* [11/24/2009 6:59:33 PM] System.Deployment.Application.DeploymentDownloadException (Unknown subtype)
- Downloading http://its-hipl-serv/wcf/version11/Application Files/version11 Web_1_0_0_13/Telerik.Windows.Data.dll did not succeed.
- Source: System.Deployment
- Stack trace:
at System.Deployment.Application.SystemNetDownloader.DownloadSingleFile(DownloadQueueItem next)
at System.Deployment.Application.SystemNetDownloader.DownloadAllFiles()
at System.Deployment.Application.FileDownloader.Download(SubscriptionState subState)
at System.Deployment.Application.DownloadManager.DownloadDependencies(SubscriptionState subState, AssemblyManifest deployManifest, AssemblyManifest appManifest, Uri sourceUriBase, String targetDirectory, String group, IDownloadNotification notification, DownloadOptions options)
at System.Deployment.Application.DeploymentManager.SynchronizeCore(Boolean blocking)
at System.Deployment.Application.DeploymentManager.SynchronizeAsyncWorker()
--- Inner Exception ---
System.Net.WebException
- The remote server returned an error: (404) Not Found.
- Source: System
- Stack trace:
at System.Net.HttpWebRequest.GetResponse()
at System.Deployment.Application.SystemNetDownloader.DownloadSingleFile(DownloadQueueItem next)

COMPONENT STORE TRANSACTION DETAILS
No transaction information is available.

====================================================================================================

I already followed following link but still getting error:

http://www.telerik.com/community/forums/wpf/carousel/radcarousel-in-sharepoint-site.aspx

Please do the needed, it is urgent..

Thank you.

Best regards,

Jignesh Patel

Window

answered on 26 Jan 2010

1 answer

206 views

[Solved] DragDrop in WF 4.0 Designer

Hi there,

I am busy evaluating Telerik's WPF controls and came to a bit of a road bump I hope you can help.

I am trying to Drag and Drop from a ListBox (this will eventually be a RadPanelBar) to a re-hosted Workflow 4.0 Designer (It's a WPF control as well).

I have got this working with the normal WPF drag and drop implementation for example.

                    Type type = ((AvailableActivity)(((ListBox)sender).SelectedItem)).Type;         
            DataObject data = new DataObject(DragDropHelper.WorkflowItemTypeNameFormat, type.AssemblyQualifiedName);         
            DragDrop.DoDragDrop(this.box1, data, DragDropEffects.Move);         

The WF Designer then queries the DataObject when its being dragged over and handles it from there.

My question is, is there anyway to provide the DataObject to the WF Designer as it expects it using the Telerik Drag and Drop? I have followed your drag and drop tutorials and got it working between list boxes, from RadPanelBar to ListBox etc. This is what I currently have.

                    private void OnDragQuery(object sender, DragDropQueryEventArgs e)         
            {         
            if (e.Options.Status == DragStatus.DragQuery)         
            {         
            AvailableActivity activity = ((AvailableActivity)((System.Windows.Controls.ListBox)(e.Options.Source)).SelectedItems[0]); // get the activity from the list         
                                        
            DataObject data = new DataObject(DragDropHelper.WorkflowItemTypeNameFormat, activity.Type.AssemblyQualifiedName);         
                                        
            e.Options.DragCue = activity.Type.AssemblyQualifiedName;          
            e.Options.ArrowCue = RadDragAndDropManager.GenerateArrowCue();          
            e.Options.Payload = activity.Type.AssemblyQualifiedName;            
            }         
            e.QueryResult = true;         
            e.Handled = true;          
            }         

Thanks

Greg

DragAndDrop

answered on 25 Jan 2010

7 answers

107 views

[Solved] Force header to stay expanded

What I would like to do is to force a specific RadPanelBarItem to stay expanded and, ideally, get rid of the arrow too (specifically, I want to do this for the first item and leave the rest to act normally). I have tried handling various events and setting templates to try to intercept the collapse functionality but have been so far unable to figure it out. I am also unable to figure out how to remove the arrow. Any ideas?

PanelBar

answered on 25 Jan 2010

2 answers

181 views

[Solved] Selected Item

Hello!

RadCarousel is a great component and it makes the application that I'm working on look so profesional even if I don't have a designer backgound or so.
There are a couple of addition things that I would need from this component, they may be already there but I don't know how to take advantage of them.
First of all - I need to always have one selected CarouselItem out there, no matter if I've clicked one or not.
If I press an additional "Load" button I should always have the possibility to retrieve the top most carousel item there
( right now carousel.SelectedItem can return null if there was no click on a specific item )
Second - Reffering the beginning or the end of carousel items sequence - I should have the possibility to stop the flow of the items (if I continuously press the carousel's ScrollViewer buttons) I mean that the last item should be in the middle of the screen and not somewhere far in the left/right of the screen (check out the attachments) - and this last one should be the SelectedItem also

Carousel

answered on 25 Jan 2010

1 answer

143 views

Side by side install

Hello everybody,

is it possible to install different version of WPF controls (indeed, all the compenent develop by Telerik: ASP.NET, AJAX, Windows Form ... ) on the same machine? What the conseguence in file system and Visual Studio (2008 and 2010 versions)?

Thank you.

Attilio Gelosa.

General Discussions