Questions on UI for WPF Forum

1 answer

89 views

Hy,

I've got a question.
If i have 20 TileViewItem in my TileView as an Example, a Scrollbar automaticaly appear.
Is it Possible to Activate the Pan Feature to this Scrollbar. I need that Feature for a Tablet App

Thank

Alfred

TileView

answered on 03 Apr 2012

2 answers

152 views

GridView synchronized with DataForm (Q1 2012 SP1)

Hello telerik support,

this morning i switched from 2011.3.1220.40 to Q1 2012 SP1 and since then the synchronization between GridView
and DataForm rises an exception (Parameter count mismatch).

The first attempt was to switch from OberservableCollection to ICollectionView but that's not the problem.
My project references the sp1 files, but could it be that the versions are mixed during execution?

regards
Chris

Stacktrace:
Parameter count mismatch.

   at System.Reflection.RuntimeMethodInfo.Invoke(Object obj, BindingFlags invokeAttr, Binder binder, Object[] parameters, CultureInfo culture, Boolean skipVisibilityChecks)
   at System.Reflection.RuntimeMethodInfo.Invoke(Object obj, BindingFlags invokeAttr, Binder binder, Object[] parameters, CultureInfo culture)
   at System.Reflection.RuntimePropertyInfo.GetValue(Object obj, BindingFlags invokeAttr, Binder binder, Object[] index, CultureInfo culture)
   at System.Reflection.RuntimePropertyInfo.GetValue(Object obj, Object[] index)
   at Telerik.Windows.Data.ItemPropertyInfoExtensions.GetValue(ItemPropertyInfo itemProperty, Object item)
   at Telerik.Windows.Controls.RadDataForm.PopulatePropertiesInitialValues(Object currentItem)
   at Telerik.Windows.Controls.RadDataForm.OnCurrentItemChanged(DependencyObject sender, DependencyPropertyChangedEventArgs args)
   at System.Windows.DependencyObject.OnPropertyChanged(DependencyPropertyChangedEventArgs e)
   at System.Windows.FrameworkElement.OnPropertyChanged(DependencyPropertyChangedEventArgs e)
   at System.Windows.DependencyObject.NotifyPropertyChange(DependencyPropertyChangedEventArgs args)
   at System.Windows.DependencyObject.UpdateEffectiveValue(EntryIndex entryIndex, DependencyProperty dp, PropertyMetadata metadata, EffectiveValueEntry oldEntry, EffectiveValueEntry& newEntry, Boolean coerceWithDeferredReference, Boolean coerceWithCurrentValue, OperationType operationType)
   at System.Windows.DependencyObject.SetValueCommon(DependencyProperty dp, Object value, PropertyMetadata metadata, Boolean coerceWithDeferredReference, Boolean coerceWithCurrentValue, OperationType operationType, Boolean isInternal)
   at System.Windows.DependencyObject.SetValue(DependencyProperty dp, Object value)
   at Telerik.Windows.Controls.RadDataForm.set_CurrentItem(Object value)
   at Telerik.Windows.Controls.RadDataForm.OnItemsCurrentChanged(Object sender, EventArgs e)
   at Telerik.Windows.Data.DataItemCollection.OnCurrentChanged(EventArgs e)
   at Telerik.Windows.Data.DataItemCollection.OnCollectionViewCurrentChanged(Object sender, EventArgs args)
   at Telerik.Windows.Data.Listener`2.ReceiveWeakEvent(Object sender, TArgs args)
   at Telerik.Windows.Data.WeakEvent.WeakListener`1.Handler(Object sender, TArgs args)
   at Telerik.Windows.Data.QueryableCollectionView.OnCurrentChanged(EventArgs args)
   at Telerik.Windows.Data.QueryableCollectionView.MoveCurrentToPositionCore(Int32 position)
   at Telerik.Windows.Data.QueryableCollectionView.MoveCurrentToPosition(Int32 position)
   at Telerik.Windows.Data.QueryableCollectionView.MoveCurrentTo(Object item)
   at Telerik.Windows.Data.DataItemCollection.MoveCurrentTo(Object item)
   at Telerik.Windows.Data.DataItemCollection.UpdateCurrentItemFromSourceCollection()
   at Telerik.Windows.Data.DataItemCollection.OnSourceCollectionViewCurrentChanged(Object sender, EventArgs args)
   at Telerik.Windows.Data.Listener`2.ReceiveWeakEvent(Object sender, TArgs args)
   at Telerik.Windows.Data.WeakEvent.WeakListener`1.Handler(Object sender, TArgs args)
   at System.EventHandler.Invoke(Object sender, EventArgs e)
   at System.Windows.Data.CollectionView.OnCurrentChanged()
   at System.Windows.Data.ListCollectionView.MoveCurrentToPosition(Int32 position)
   at System.Windows.Data.CollectionView.MoveCurrentTo(Object item)
   at Telerik.Windows.Data.DataItemCollection.UpdateSourceCollectionCurrentItem()
   at Telerik.Windows.Data.DataItemCollection.OnCollectionViewCurrentChanged(Object sender, EventArgs args)
   at Telerik.Windows.Data.Listener`2.ReceiveWeakEvent(Object sender, TArgs args)
   at Telerik.Windows.Data.WeakEvent.WeakListener`1.Handler(Object sender, TArgs args)
   at Telerik.Windows.Data.QueryableCollectionView.OnCurrentChanged(EventArgs args)
   at Telerik.Windows.Data.QueryableCollectionView.MoveCurrentToPositionCore(Int32 position)
   at Telerik.Windows.Data.QueryableCollectionView.MoveCurrentToPosition(Int32 position)
   at Telerik.Windows.Data.QueryableCollectionView.MoveCurrentTo(Object item)
   at Telerik.Windows.Data.DataItemCollection.MoveCurrentTo(Object item)
   at Telerik.Windows.Data.Selection.ItemSelectionHandler.SyncCurrentWithSelected()
   at Telerik.Windows.Data.Selection.ItemSelectionHandler.TrySyncCurrentWithSelected()
   at Telerik.Windows.Data.Selection.ItemSelectionHandler.RaiseSelectionChangedAndSyncCurrentWithSelectedIfNeeded(ItemSelectionChange selectionChange)
   at Telerik.Windows.Data.Selection.ItemSelectionHandler.EndAllowedSelection(ItemSelectionChange selectionChange)
   at Telerik.Windows.Data.Selection.ItemSelectionHandler.EndPendingSelection(ItemSelectionChange pendingSelection)
   at Telerik.Windows.Data.Selection.ItemSelectionHandler.EndSelection()
   at Telerik.Windows.Data.Selection.ItemSelectionHandler.PerformSelection(Object item, SelectionModificationOptions options)
   at Telerik.Windows.Controls.GridView.Selection.CompositeSelectionHandler.PerformRowSelection(Object dataItem, SelectionModificationOptions modificationOptions)
   at Telerik.Windows.Controls.GridView.Selection.CellAndRowSelectionDispatcher.HandleSelectionForValidCellInput(GridViewCell cell, SelectionModificationOptions allowedModifications)
   at Telerik.Windows.Controls.GridView.Selection.CellAndRowSelectionDispatcher.HandleSelectionForCellInput(GridViewCell cell, SelectionModificationOptions allowedModifications)
   at Telerik.Windows.Controls.GridView.GridViewDataControl.HandleMouseDownSelection(GridViewCell cell, Boolean allowDrag, Point mousePosition)
   at Telerik.Windows.Controls.GridView.GridViewCell.OnMouseLeftButtonDown(MouseButtonEventArgs e)
   at System.Windows.UIElement.OnMouseLeftButtonDownThunk(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.ReRaiseEventAs(DependencyObject sender, RoutedEventArgs args, RoutedEvent newEvent)
   at System.Windows.UIElement.OnMouseDownThunk(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.RaiseTrustedEvent(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, WindowMessage 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, Int32 numArgs)
   at MS.Internal.Threading.ExceptionFilterHelper.TryCatchWhen(Object source, Delegate method, Object args, Int32 numArgs, Delegate catchHandler)

GridView

answered on 03 Apr 2012

3 answers

210 views

Problem with column common Header

Hi,
I have a problem when using commom column header, I got a null reference exception,
I'm using pdb files to debug telerik gridviiew dll and exception occurs in CommonHeaderPresenter Class and ArrangeLowestHeaders() method.

private void ArrangeLowestHeaders()

{

string lastGroupName = String.Empty;

CommonColumnHeader lastCommonHeader = null;

int span = 0;

List<CommonColumnHeader> headers = new List<CommonColumnHeader>();

for (int i = 0; i < this.OrderedColumns.Count; i++)

{

string groupName = this.OrderedColumns[i].ColumnGroupName;

if (lastGroupName != groupName)

{

lastGroupName = groupName;

span = 0;

CommonColumnHeader commonHeader = CreateCommonHeader();

this.CommonHeadersGrid.Children.Add(commonHeader);

var group = FindGroupByName(groupName, this.ColumnGroups);

commonHeader.ColumnGroup = group;

commonHeader.Content = CommonHeaderPresenter.GetContent(group);//TODO this should happen in the header itself.

SetTemplateAndStyle(commonHeader, group);

commonHeader.SetValue(Grid.ColumnProperty, i);

commonHeader.SetValue(Grid.RowProperty, this.RowCount - 1);

commonHeader.HorizontalAlignment = HorizontalAlignment.Stretch;

headers.Add(commonHeader);

lastCommonHeader = commonHeader;

}

span++;

lastCommonHeader.SetValue(Grid.ColumnSpanProperty, span);

if (gridView.FrozenColumnCount > 0)

{

SelectiveScrollingGrid.SetSelectiveScrollingOrientation(lastCommonHeader, SelectiveScrollingOrientation.Vertical);

}

if (RowCount > 1)

{

ArrangeHeadersAtRow(this.RowCount - 2, headers);

}

To get this bug , set ColumnGroupName property of the first column of your grid to string.empty or set the first groupName to string empty.
Because lastGroupName = groupName = string.empty,
lastCommonHeader is not initialized and you have a null reference exception at line 142.

GridView

answered on 03 Apr 2012

0 answers

302 views

Checkbox can not binding IsEnabled from Button

XAML

<StackPanel Orientation="Horizontal" Grid.Row="1" Margin="10" HorizontalAlignment="Center">

<telerik:RadButton x:Name="btStartLog" Content="{Binding startStopbuttonText}" IsEnabled="{Binding isEnableTextBox}"

Command="{Binding startStopLogConfigCommand}" Margin="10" Width="150" Height="40" />

</StackPanel>

<telerik:RadGridView x:Name="RadGridView1">

<telerik:GridViewDataColumn Header="To File">

<telerik:GridViewDataColumn.CellTemplate>

<DataTemplate>

<CheckBox HorizontalAlignment="Left" VerticalAlignment="Center" IsChecked="{Binding IsOnFile}" />

</DataTemplate>

</telerik:GridViewDataColumn.CellTemplate>

<telerik:GridViewColumn.CellStyle>

<Style TargetType="telerik:GridViewCell">

<Setter Property="IsEnabled" Value="{Binding ElementName=btStartLog, Path=IsEnabled}" />

</Style>

</telerik:GridViewColumn.CellStyle>

</telerik:GridViewDataColumn>

</telerik:RadGridView>

I would like to get IsEnabled from Button to set property of Checkbox in Radgridview but when i use code above it not working
please help.

GridView

asked on 03 Apr 2012

1 answer

135 views

Confirm on radgrid update

I have a screen that contains a radgrid on it, when the user clicks to add a new record and they enter the new info I do a check to see if it is a possible duplicate. If it is I want to display a Confirm message box that will inform them that it is a possible dup, but allow them to add the record.
I am currently using a messagebox but would like to use a radwindow, but when I add an even hadler I do not see a way to pass the data to the new method. Or should I try and read the active row of the grid after the confrim?



public void UpdateTransaction(object sender, Telerik.Windows.Controls.GridViewRowEditEndedEventArgs e)

{

EditData ed = new EditData();

FundTransaction trans = (FundTransaction)e.NewData;

if (trans.FundID != null && trans.TickerID != null) {

string result = ed.EditFundTransaction(trans.TransactionID, trans.FundID);

if (result != "")

{

if (MessageBox.Show(result, "Confirmation", MessageBoxButton.YesNo) == MessageBoxResult.Yes)

{

ImportData id = new ImportData();

id.AddTransaction(trans.FundID, trans.TickerID); }

}

Window

answered on 03 Apr 2012

6 answers

128 views

Assign data to specific row

Hi,

How to insert the data into the specific row on gridview?

Regards,
Clare

GridView

answered on 03 Apr 2012

4 answers

199 views

Custom Delete Logic

I have a GridView which the user can Delete rows from. This works on the screen but I need it to fire a stored procedure to delete records form the data base. I and using the Deleting Event but I am unsure how to get the data from the items being deleted. I want to retrive a cell value to pass as a paramater to a stored procedure to delete records from the database.

GridView

answered on 03 Apr 2012

7 answers

243 views

Changing Color schemes and Background images

Are following changes possible
To change color of : (please view the attached image)
1. View Selector which is currently black
2. Date Header which is currently grayish
3. Task color

To change background of a occurrence of a Task, like in a recurrence task if some occurrences have been completed then there background will be different than those which yet to be started/completed. Similarly for Non - recurrence tasks

If above changes are possible please provide some code to accomplish them

Thanks

ScheduleView

answered on 03 Apr 2012

1 answer

144 views

Bring TreeItem into view with horizontal scroll?

BringPathIntoView vertically scrolls my treeview so the end path item is "in view", however the item is hidden to the right because the treeview is in a narrow container. How can I get the treeview to auto scroll horizontally over so the item is truly in view?

Thanks
Buzz

TreeView

answered on 03 Apr 2012

4 answers

326 views

Cannot edit cell in radgridview if data source is data table with numeric column name

Hi Telerik Team,

I tried to bind my radgridview with a DataTable contains year series DataColumns (I set autogeneratecolumn="true"). It can display the value but I can't edit the value if the column header contain only number. (please check attached image).

Is it a known bug or I just need to enable any property in radgridview? please advise.

Thanks,
Andy

GridView

answered on 03 Apr 2012