Hi,

I am trying to set a DataTable as ItemsSource for a RadGridView and get the following exception:

   at System.Linq.Enumerable.<CastIterator>d__aa`1.System.Collections.IEnumerator.Reset()
   at Telerik.Windows.Data.EnumerableExtensions.TryGetFirstElementType(IEnumerable source, Type& firstElementType) in c:\Builds\WPF_Scrum\Release_WPF\Sources\Development\Core\Data\Collections\EnumerableExtensions.cs:line 54

I do the following:

DataTable

 

dataTable = new DataTable();

 

 

string[] values = dataValue.Value.Split(',');

 

 

for (int i = 0; i < values.Length; i++)

 

{

dataTable.Columns.Add(i.ToString(),

typeof(string));

 

}

dataTable.Rows.Add(values);

 

this.radGridView1.AutoGenerateColumns = true;

 

 

this.radGridView1.ItemsSource = dataTable;

 

Anybody has some suggestions what I am doing wrong here?

Hi,

I have downloaded latest trial verision of Wpf RadControls. They are working very good, but there is one exception. I can not drop pane(floating window state) outside the window of wpf application. Dragging and docking works only inside window of app - when I am trying to drag pane outside the window, pane "hides" underneath the border of app.
Is there any solution of this "problem"?

Best regards
Pit

hi all,
i hv a refresh button and i want to set first row or previously selected row as selected row after user refreshes the grid.
in the below code, _selectRow is of object type.  i am using customobjects in the project so _selectRow will be custom object of type "sample". however, i am unable to set selectedrow using the below code, please let me know if iam missing anything here.

regards,
Sandy

 

if (wipGridView.SelectedItem != null)

 

_selectedRow = wipGridView.SelectedItem ;

 

else

 

{

_selectedRow = wipGridView.Items[0] ;

}

 

this.Cursor = Cursors.Wait;

 

LoadWipGrid(_selectedDisplayType);

wipGridView.CurrentItem = _selectedRow;

wipGridView.SelectedItem = _selectedRow;

wipGridView.SetIsCurrent(_selectedRow,

true);

 

wipGridView.SetIsSelected(_selectedRow,

true);

 

Hello Forum!

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

Hello,

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


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

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.

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

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.

Hi there,

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?