or
1 answer
132 views
I would like to create a parent grid that will contain all of the columns for a multi-use table but where I can derive/inherit from it depending on the circumstance (I did not create this table so please don't suggest that it should be normalized). For example, My table contains fields labeled "Field1" to "Fieldx". Field1 for one record may mean something completely different for Field1 of a different record and this is usually designated by a particular company. So, I would like to create one parent grid with the ability to perform CRUD operations on this table but "inherit" the xaml so I can change the columnar header names and eventually lookup lists based on the company being used.
I have been researching this topic for most of the day but have yet to find the "right" solution. There are many possibilities but I would like advice in advance on the best path to take so I don't go down any rabbit trails.
1. One possibility that I found was to put the grid in a user control and then inherit the user control. However, this was criticized because either it doesn't allow the user to edit the columns of the child user control at design time or it created reference issues within the encapsulated user control.
2. Another possibility was to subclass Telerik's gridview but that seems like overkill and I believe there has to be something easier.
3. Another idea is to create a content template. I don't know much about content templates and don't know if learning and implimenting this idea would be a waste of time.
Thank You in advance.
I have been researching this topic for most of the day but have yet to find the "right" solution. There are many possibilities but I would like advice in advance on the best path to take so I don't go down any rabbit trails.
1. One possibility that I found was to put the grid in a user control and then inherit the user control. However, this was criticized because either it doesn't allow the user to edit the columns of the child user control at design time or it created reference issues within the encapsulated user control.
2. Another possibility was to subclass Telerik's gridview but that seems like overkill and I believe there has to be something easier.
3. Another idea is to create a content template. I don't know much about content templates and don't know if learning and implimenting this idea would be a waste of time.
Thank You in advance.
Stefan Dobrev
Telerik team
answered
on
06 Oct 2009
13 answers
284 views
Hi,
Are there any plans to do a Ribbon as found in MS Office 2007?
Cheers,
Michael
Are there any plans to do a Ribbon as found in MS Office 2007?
Cheers,
Michael
andrea bellagamba
Top achievements
Rank 1
Rank 1
answered
on
06 Oct 2009
5 answers
150 views
Hello,
We've been seeing a couple of errors popping up with the Grid. One of them says something like "Count must be positive and count must refer to a location within the string/array/collection. Parameter name : count." And another is about the "Index must be within range"...
I don't have steps to reproduce the issue; it seems to happen randomly, but when we do get the error, it's usually on load of the grid. Then we can reload and everything is fine until it happens again. It has happened during sort operations also.
Laura
We've been seeing a couple of errors popping up with the Grid. One of them says something like "Count must be positive and count must refer to a location within the string/array/collection. Parameter name : count." And another is about the "Index must be within range"...
I don't have steps to reproduce the issue; it seems to happen randomly, but when we do get the error, it's usually on load of the grid. Then we can reload and everything is fine until it happens again. It has happened during sort operations also.
Laura
Vlad
Telerik team
answered
on
06 Oct 2009
1 answer
132 views
Hi,
I have a grid bound to a DataTable (cannot use Observable collection of custom objects), when I add or delete a row from the dataTable instance the grid is not refreshed, which is kind of expected. But the problem is when I force a grid refresh, the only way I found to accomplish that was doing something like this:
This is extremely expensive. Is there a more convinient and less expensive way to refresh the grid rows?
Thanks,
Marco
I have a grid bound to a DataTable (cannot use Observable collection of custom objects), when I add or delete a row from the dataTable instance the grid is not refreshed, which is kind of expected. But the problem is when I force a grid refresh, the only way I found to accomplish that was doing something like this:
| myGrid.ItemsSource = null; |
| myGrid.ItemsSource = samplesDataTable; |
This is extremely expensive. Is there a more convinient and less expensive way to refresh the grid rows?
Thanks,
Marco
Milan
Telerik team
answered
on
06 Oct 2009
7 answers
345 views
I'm getting the following exception when I try to set the ShowButtons property of the RadNumericUpDown to false
Cannot animate the 'Visibility' property on a 'System.Windows.Controls.Grid' using a 'System.Windows.Media.Animation.ObjectAnimationUsingKeyFrames'. For details see the inner exception.
Here's the full exception
System.Windows.Media.Animation.AnimationException was unhandled
Message="Cannot animate the 'Visibility' property on a 'System.Windows.Controls.Grid' using a 'System.Windows.Media.Animation.ObjectAnimationUsingKeyFrames'. For details see the inner exception."
Source="PresentationCore"
StackTrace:
at System.Windows.Media.Animation.AnimationStorage.OnCurrentTimeInvalidated(Object sender, EventArgs args)
at System.Windows.Media.Animation.Clock.FireEvent(EventPrivateKey key)
at System.Windows.Media.Animation.Clock.RaiseAccumulatedEvents()
at System.Windows.Media.Animation.TimeManager.RaiseEnqueuedEvents()
at System.Windows.Media.Animation.TimeManager.Tick()
at System.Windows.Media.MediaContext.RenderMessageHandlerCore(Object resizedCompositionTarget)
at System.Windows.Media.MediaContext.RenderMessageHandler(Object resizedCompositionTarget)
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)
at System.Windows.Threading.DispatcherOperation.InvokeImpl()
at System.Threading.ExecutionContext.runTryCode(Object userData)
at System.Runtime.CompilerServices.RuntimeHelpers.ExecuteCodeWithGuaranteedCleanup(TryCode code, CleanupCode backoutCode, Object userData)
at System.Threading.ExecutionContext.Run(ExecutionContext executionContext, ContextCallback callback, Object state)
at System.Windows.Threading.DispatcherOperation.Invoke()
at System.Windows.Threading.Dispatcher.ProcessQueue()
at System.Windows.Threading.Dispatcher.WndProcHook(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)
at System.Windows.Threading.Dispatcher.InvokeImpl(DispatcherPriority priority, TimeSpan timeout, Delegate method, Object args, Boolean isSingleParameter)
at MS.Win32.HwndSubclass.SubclassWndProc(IntPtr hwnd, Int32 msg, IntPtr wParam, IntPtr lParam)
at MS.Win32.UnsafeNativeMethods.DispatchMessage(MSG& msg)
at System.Windows.Threading.Dispatcher.TranslateAndDispatchMessage(MSG& msg)
at System.Windows.Threading.Dispatcher.PushFrameImpl(DispatcherFrame frame)
at System.Windows.Application.RunInternal(Window window)
at Shell.App.Main() in D:\V\Code\Production\Sizing\Shell\obj\Debug\App.g.cs:line 0
at System.AppDomain._nExecuteAssembly(Assembly assembly, String[] args)
at Microsoft.VisualStudio.HostingProcess.HostProc.RunUsersAssembly()
at System.Threading.ExecutionContext.Run(ExecutionContext executionContext, ContextCallback callback, Object state)
at System.Threading.ThreadHelper.ThreadStart()
InnerException: System.InvalidOperationException
Message="The animation(s) applied to the 'Visibility' property calculate a current value of 'Collapsed', which is not a valid value for the property."
Source="PresentationCore"
StackTrace:
at System.Windows.Media.Animation.AnimationStorage.GetCurrentPropertyValue(AnimationStorage storage, DependencyObject d, DependencyProperty dp, PropertyMetadata metadata, Object baseValue)
at System.Windows.Media.Animation.AnimationStorage.OnCurrentTimeInvalidated(Object sender, EventArgs args)
InnerException:
and here's the XAML that I'm using for the control
| <telerik:RadNumericUpDown Grid.Column="1" |
| x:Name="inpPMax" Style="{StaticResource InputNumbers}" |
| ValueFormat="Numeric" NumberFormatInfo="{Binding Path=DisplayFormat}" |
| ShowButtons="False" |
| IsEnabled="{Binding Path=UserEntered}" |
| Minimum="{Binding Path=Minimum}" Maximum="{Binding Path=Maximum}" |
| SmallChange="1" LargeChange="10" GotFocus="inpPMax_GotFocus"> |
| <telerik:RadNumericUpDown.Value> |
| <Binding Path="DisplayValue" Mode="TwoWay" UpdateSourceTrigger="PropertyChanged" ValidatesOnDataErrors="True"/> |
| </telerik:RadNumericUpDown.Value> |
| </telerik:RadNumericUpDown> |
| <Style x:Key="InputNumbers" TargetType="{x:Type telerik:RadNumericUpDown}"> |
| <Setter Property="Height" Value="25"/> |
| <Setter Property="FontSize" Value="12"/> |
| <Setter Property="Margin" Value="2"/> |
| <Setter Property="HorizontalContentAlignment" Value="Right"/> |
| </Style> |
this exception only occurs when the view becomes active. Meaning I only see the exception when the tab that holds these RadNumericUpDown controls has been activated.
thanks
Josh
Hristo Borisov
Telerik team
answered
on
05 Oct 2009
2 answers
175 views
I would like to change the style of the toolbar, however when editing the style or controltemplate in Blend it forces me to "Create New". I would prefer to "Edit Existing" so that I can start with the existing template to ensure I am providing all the necessary control parts. Do you have any suggestions, or can you send me a default style for the toolBar to work with?
Thank you!
Thank you!
Ivan
Telerik team
answered
on
05 Oct 2009
7 answers
316 views
Hi,
In the application we're building we use the RadGridView (version 2009.2.701.35) in an UserControl that is added to a TabControl as the content of a TabItem.
When the TabItem containing the RadGridView is removed from the TabControl (=closed), the application still holds a reference to the UserControl. We've tried everything, including memory profiling. If we replace the RadGridView with a standard WPF ListView on the UserControl, the reference to the UserControl no longer exists!
To reproduce this in a more simple environment, we created a new WPF application containing 2 Windows. The startup window contains 1 button, doing nothing more then showing the 2nd window. The 2nd window contains a RadGridView, and in the constructor of the window the RadGridView is filled with 300.000 items.
Memory profiling that test application shows that after closing the 2nd window, there is still a reference to it, while if we replace the RadGridView with a standard WPF ListView again, there is no reference.
Is there something we're missing or is this a (serious) bug in the RadGridView? I can't find anything in the release notes newer then the version we use that this is already fixed, nor can I find anything on the forums about a memory leak...
In the application we're building we use the RadGridView (version 2009.2.701.35) in an UserControl that is added to a TabControl as the content of a TabItem.
When the TabItem containing the RadGridView is removed from the TabControl (=closed), the application still holds a reference to the UserControl. We've tried everything, including memory profiling. If we replace the RadGridView with a standard WPF ListView on the UserControl, the reference to the UserControl no longer exists!
To reproduce this in a more simple environment, we created a new WPF application containing 2 Windows. The startup window contains 1 button, doing nothing more then showing the 2nd window. The 2nd window contains a RadGridView, and in the constructor of the window the RadGridView is filled with 300.000 items.
Memory profiling that test application shows that after closing the 2nd window, there is still a reference to it, while if we replace the RadGridView with a standard WPF ListView again, there is no reference.
Is there something we're missing or is this a (serious) bug in the RadGridView? I can't find anything in the release notes newer then the version we use that this is already fixed, nor can I find anything on the forums about a memory leak...
Hristo
Telerik team
answered
on
05 Oct 2009
3 answers
147 views
Hello, I'm using your RadTreeView with Columns example and a few days ago, I started getting these two strange exceptions, they seem to be in the RadTreeViewItem code, so I can't trace them.
Error 1) When I call the Clear() event from the RadTreeView
Message:
"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\Sources\Development\Controls\Navigation\TreeView\RadTreeViewItem.Events.cs:line 439
at Telerik.Windows.Controls.RadTreeViewItem.OnHeaderMouseLeftButtonUp(Object sender, MouseEventArgs e) in c:\Builds\WPF_Scrum\Navigation_WPF\Sources\Development\Controls\Navigation\TreeView\RadTreeViewItem.Events.cs:line 863
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)
Error 2) When I click on a RadTreeViewItem to select it.
Message:
"The specified Visual and this Visual do not share a common ancestor, so there is no valid transformation between the two Visuals."
Stack Trace:
" at System.Windows.Media.Visual.TransformToVisual(Visual visual)\r\n at Telerik.Windows.Controls.RadTreeViewItem.get_IsInViewport() in c:\\Builds\\WPF_Scrum\\Navigation_WPF\\Sources\\Development\\Controls\\Navigation\\TreeView\\RadTreeViewItem.Properties.cs:line 434\r\n at Telerik.Windows.Controls.RadTreeViewItem.BringIntoView() in c:\\Builds\\WPF_Scrum\\Navigation_WPF\\Sources\\Development\\Controls\\Navigation\\TreeView\\RadTreeViewItem.cs:line 341\r\n at Telerik.Windows.Controls.RadTreeViewItem.OnIsSelectedPropertyChanged(DependencyObject d, DependencyPropertyChangedEventArgs args) in c:\\Builds\\WPF_Scrum\\Navigation_WPF\\Sources\\Development\\Controls\\Navigation\\TreeView\\RadTreeViewItem.Properties.cs:line 1161\r\n at System.Windows.DependencyObject.OnPropertyChanged(DependencyPropertyChangedEventArgs e)\r\n at System.Windows.FrameworkElement.OnPropertyChanged(DependencyPropertyChangedEventArgs e)\r\n at System.Windows.DependencyObject.NotifyPropertyChange(DependencyPropertyChangedEventArgs args)\r\n at System.Windows.DependencyObject.UpdateEffectiveValue(EntryIndex entryIndex, DependencyProperty dp, PropertyMetadata metadata, EffectiveValueEntry oldEntry, EffectiveValueEntry& newEntry, Boolean coerceWithDeferredReference, OperationType operationType)\r\n at System.Windows.DependencyObject.SetValueCommon(DependencyProperty dp, Object value, PropertyMetadata metadata, Boolean coerceWithDeferredReference, OperationType operationType, Boolean isInternal)\r\n at System.Windows.DependencyObject.SetValue(DependencyProperty dp, Object value)\r\n at Telerik.Windows.Controls.RadTreeViewItem.set_IsSelected(Boolean value) in c:\\Builds\\WPF_Scrum\\Navigation_WPF\\Sources\\Development\\Controls\\Navigation\\TreeView\\RadTreeViewItem.Properties.cs:line 417\r\n at Telerik.Windows.Controls.RadTreeView.SelectionChanger_SelectionChanged(Object sender, SelectionChangedEventArgs e) in c:\\Builds\\WPF_Scrum\\Navigation_WPF\\Sources\\Development\\Controls\\Navigation\\TreeView\\RadTreeView.cs:line 2735\r\n at Telerik.Windows.Controls.SelectionChanger`1.InvokeSelectionChangedEvent() in c:\\Builds\\WPF_Scrum\\Core_WPF\\Sources\\Development\\Core\\Controls\\Common\\SelectionChanger.cs:line 322\r\n at Telerik.Windows.Controls.SelectionChanger`1.End() in c:\\Builds\\WPF_Scrum\\Core_WPF\\Sources\\Development\\Core\\Controls\\Common\\SelectionChanger.cs:line 74\r\n at Telerik.Windows.Controls.RadTreeView.SetSelectedItem(RadTreeViewItem itemContainer) in c:\\Builds\\WPF_Scrum\\Navigation_WPF\\Sources\\Development\\Controls\\Navigation\\TreeView\\RadTreeView.cs:line 2687\r\n at Telerik.Windows.Controls.RadTreeView.HandleItemSelectionFromUI(RadTreeViewItem itemToSelect) in c:\\Builds\\WPF_Scrum\\Navigation_WPF\\Sources\\Development\\Controls\\Navigation\\TreeView\\RadTreeView.cs:line 2133\r\n at Telerik.Windows.Controls.RadTreeViewItem.OnHeaderMouseLeftButtonDown(Object sender, MouseButtonEventArgs e) in c:\\Builds\\WPF_Scrum\\Navigation_WPF\\Sources\\Development\\Controls\\Navigation\\TreeView\\RadTreeViewItem.Events.cs:line 846\r\n at System.Windows.Input.MouseButtonEventArgs.InvokeEventHandler(Delegate genericHandler, Object genericTarget)\r\n at System.Windows.RoutedEventArgs.InvokeHandler(Delegate handler, Object target)\r\n at System.Windows.RoutedEventHandlerInfo.InvokeHandler(Object target, RoutedEventArgs routedEventArgs)\r\n at System.Windows.EventRoute.InvokeHandlersImpl(Object source, RoutedEventArgs args, Boolean reRaised)\r\n at System.Windows.UIElement.ReRaiseEventAs(DependencyObject sender, RoutedEventArgs args, RoutedEvent newEvent)\r\n at System.Windows.UIElement.CrackMouseButtonEventAndReRaiseEvent(DependencyObject sender, MouseButtonEventArgs e)\r\n at System.Windows.UIElement.OnMouseDownThunk(Object sender, MouseButtonEventArgs e)\r\n at System.Windows.Input.MouseButtonEventArgs.InvokeEventHandler(Delegate genericHandler, Object genericTarget)\r\n at System.Windows.RoutedEventArgs.InvokeHandler(Delegate handler, Object target)\r\n at System.Windows.RoutedEventHandlerInfo.InvokeHandler(Object target, RoutedEventArgs routedEventArgs)\r\n at System.Windows.EventRoute.InvokeHandlersImpl(Object source, RoutedEventArgs args, Boolean reRaised)\r\n at System.Windows.UIElement.RaiseEventImpl(DependencyObject sender, RoutedEventArgs args)\r\n at System.Windows.UIElement.RaiseEvent(RoutedEventArgs args, Boolean trusted)\r\n at System.Windows.Input.InputManager.ProcessStagingArea()\r\n at System.Windows.Input.InputManager.ProcessInput(InputEventArgs input)\r\n at System.Windows.Input.InputProviderSite.ReportInput(InputReport inputReport)\r\n at System.Windows.Interop.HwndMouseInputProvider.ReportInput(IntPtr hwnd, InputMode mode, Int32 timestamp, RawMouseActions actions, Int32 x, Int32 y, Int32 wheel)\r\n at System.Windows.Interop.HwndMouseInputProvider.FilterMessage(IntPtr hwnd, Int32 msg, IntPtr wParam, IntPtr lParam, Boolean& handled)\r\n at System.Windows.Interop.HwndSource.InputFilterMessage(IntPtr hwnd, Int32 msg, IntPtr wParam, IntPtr lParam, Boolean& handled)\r\n at MS.Win32.HwndWrapper.WndProc(IntPtr hwnd, Int32 msg, IntPtr wParam, IntPtr lParam, Boolean& handled)\r\n at MS.Win32.HwndSubclass.DispatcherCallbackOperation(Object o)\r\n at System.Windows.Threading.ExceptionWrapper.InternalRealCall(Delegate callback, Object args, Boolean isSingleParameter)\r\n at System.Windows.Threading.ExceptionWrapper.TryCatchWhen(Object source, Delegate callback, Object args, Boolean isSingleParameter, Delegate catchHandler)"
If you need more info I can show you the dissasembly. Thanks in advance.
Miroslav
Telerik team
answered
on
05 Oct 2009
4 answers
263 views
I have a WPF page with a RadGridView, and i want to change the column headers of this grid at runtime beacuse my application is bilingual, i tiried the following code but the headers dose not changed.
<
telerik:RadGridView Name="gvEmployees" Margin="2" telerik:StyleManager.Theme="Office_Blue" AutoGenerateColumns="False" HorizontalAlignment="Stretch" ColumnsWidthMode="Fill" ShowGroupPanel="False" IsReadOnly="True">
<telerik:RadGridView.Columns>
<telerik:GridViewDataColumn DataMemberPath="Employee_NO" Header="Employee NO."/>
<telerik:GridViewDataColumn DataMemberPath ="National_ID" Header="National ID"/>
<telerik:GridViewDataColumn DataMemberPath="Full_Name_Ar" Header="Name Ar"/>
<telerik:GridViewDataColumn DataMemberPath="Full_Name_En" Header="Name En"/>
</telerik:RadGridView.Columns>
</telerik:RadGridView>
Private Sub gvEmployees_DataLoaded(ByVal sender As Object, ByVal e As System.EventArgs) Handles gvEmployees.DataLoaded
gvEmployees.Columns(0).Header =
"Test Change"
End Sub
Pavel Pavlov
Telerik team
answered
on
05 Oct 2009
3 answers
59 views
We are using Telerik Tree control in our project. We are doing Automation by Testpartner Tool. Testpartner doesn't support directly to recognize Telerik Tree control. So we are using Telerik Tree view reference in Testpartner tool for accessing/fetching data from Tree view. By late binding unable to get tree items.
Need your suggestions forTestpartner to identify Telerik Tree view items.
Valentin.Stoychev
Telerik team
answered
on
05 Oct 2009
