Questions on UI for WPF Forum

8 answers

217 views

Hi,

for q1 2010 the RadEditor is announced.
we need for our new wpf-application a textcontrol with following functions:

- tables
- styles
- rtf

can the version from q1 2010 handle this functionality?

is a telerik-FileDialog available in de wpf-version?

thx for information

General Discussions

answered on 07 Jan 2011

4 answers

171 views

GRIDVIEW to SORT ONLY IN ASCENDING AND DESCENDING

Hi
i want that my gridview column should sort the data only in ascending and descending . not in the order the data were created in the gridview
Please help me find the solution

GridView

answered on 07 Jan 2011

6 answers

407 views

[Solved] Commit edit from details view

We would like to have "advanced editing" for some cells in the details view: some cells in a row are simple to edit (strings, integers), others are quite complex and using a custom data template with lots of controls make the grid very cumbersome to use and un-pleasant to see.
Anyway, we have bound the data succesfully, but we would like to avoid automatic "commit" of the edit until the user wants to do so (pressing "Enter", clicking a button...)
We tried with a button; in the event handler for click we inserted the line

private void btnSave_Click(object sender, RoutedEventArgs e)

{

this.RadGridView1.CommitEdit();

}

But to no avail: the selected row grid remains in edit mode, changes are not saved

Which is the correct way to do so?
Thanks,
Lorenzo

GridView

answered on 07 Jan 2011

3 answers

129 views

Random Drag error?

I have code that overrides the default appointment edit behavior on double click and opens a seperate UIElement that overlays the ScheduleView for editing the appointment. When I navigate back (ie. push the scheduleview back into view), I get this error... Interestingly, If I walk it through debug, I don't see the error and everything works as I would expect it to. Note that I am not dragging anythiing. I am just merely double clicking on an appt to launch a new UIElement and then having that UIElement go away to have the error occur.

Object reference not set to an instance of an object.

Details:

System.NullReferenceException: Object reference not set to an instance of an object.

at Telerik.Windows.Controls.ScheduleViewBase.StartDrag(DragDropQueryEventArgs e, AppointmentItem clickedItem, DragDropState state)

at Telerik.Windows.Controls.AppointmentItem.OnAppointmentItemsDragQuery(Object sender, DragDropQueryEventArgs e)

at Telerik.Windows.Controls.DragDrop.DragDropQueryEventArgs.InvokeEventHandler(Delegate genericHandler, Object genericTarget)

at System.Windows.RoutedEventArgs.InvokeHandler(Delegate handler, Object target)

at System.Windows.EventRoute.InvokeHandlersImpl(Object source, RoutedEventArgs args, Boolean reRaised)

at System.Windows.UIElement.RaiseEventImpl(DependencyObject sender, RoutedEventArgs args)

at Telerik.Windows.Controls.DragDrop.RadDragAndDropManager.DragDropProvider_DragQuery(Object sender, DragDropQueryEventArgs e)

at Telerik.Windows.Controls.DragDrop.DragDropProviderBase.RaiseDragQuery()

at Telerik.Windows.Controls.DragDrop.WPFSimulatedDragDropProvider.TryStartDrag(IMouseEventArgs e)

at Telerik.Windows.Controls.DragDrop.SimulatedDragDropProvider.OnTrackedElementMouseMoveInternal(IMouseEventArgs e)

at Telerik.Windows.Controls.DragDrop.SimulatedDragDropProvider.OnCoverRectangleMouseMoveInternal(IMouseEventArgs e)

at Telerik.Windows.Controls.DragDrop.WPFSimulatedDragDropProvider.OnCoverRectangleMouseMove(Object sender, MouseEventArgs e)

at System.Windows.RoutedEventArgs.InvokeHandler(Delegate handler, Object target)

at System.Windows.EventRoute.InvokeHandlersImpl(Object source, RoutedEventArgs args, Boolean reRaised)

at System.Windows.UIElement.RaiseEventImpl(DependencyObject sender, RoutedEventArgs args)

at System.Windows.ContentElement.RaiseTrustedEvent(RoutedEventArgs args)

at System.Windows.Input.InputManager.ProcessStagingArea()

at System.Windows.Input.MouseDevice.Synchronize()

at System.Windows.Input.MouseDevice.ChangeMouseCapture(IInputElement mouseCapture, IMouseInputProvider providerCapture, CaptureMode captureMode, Int32 timestamp)

at System.Windows.Input.MouseDevice.Capture(IInputElement element, CaptureMode captureMode)

at System.Windows.Input.Mouse.Capture(IInputElement element)

at System.Windows.Documents.Hyperlink.OnMouseLeftButtonDown(Object sender, MouseButtonEventArgs e)

at System.Windows.RoutedEventArgs.InvokeHandler(Delegate handler, Object target)

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.RoutedEventArgs.InvokeHandler(Delegate handler, Object target)

at System.Windows.EventRoute.InvokeHandlersImpl(Object source, RoutedEventArgs args, Boolean reRaised)

at System.Windows.UIElement.RaiseEventImpl(DependencyObject sender, RoutedEventArgs args)

at System.Windows.ContentElement.RaiseTrustedEvent(RoutedEventArgs args)

at System.Windows.Input.InputManager.ProcessStagingArea()

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)

at System.Windows.Threading.Dispatcher.WrappedInvoke(Delegate callback, Object args, Int32 numArgs, Delegate catchHandler)

at System.Windows.Threading.Dispatcher.InvokeImpl(DispatcherPriority priority, TimeSpan timeout, Delegate method, Object args, Int32 numArgs)

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.PushFrameImpl(DispatcherFrame frame)

at System.Windows.Application.RunInternal(Window window)

at System.Windows.Application.Run()

at Metrix.UI.App.Main() in C:\Users\rodneyy\Documents\Visual Studio 2010\Projects\M530\Client\Metrix.UI\obj\Debug\App.g.cs:line 0

at System.AppDomain._nExecuteAssembly(RuntimeAssembly assembly, String[] args)

at System.Runtime.Hosting.ApplicationActivator.CreateInstance(ActivationContext activationContext, String[] activationCustomData)

at Microsoft.VisualStudio.HostingProcess.HostProc.RunUsersAssemblyDebugInZone()

at System.Threading.ExecutionContext.Run(ExecutionContext executionContext, ContextCallback callback, Object state, Boolean ignoreSyncCtx)

at System.Threading.ExecutionContext.Run(ExecutionContext executionContext, ContextCallback callback, Object state)

ScheduleView

answered on 07 Jan 2011

2 answers

315 views

[Solved] Using ItemsSourceBinding on a System.Data.DataRow

I have a GridViewComboBoxColumn bound to a System.Data.DataRow, and I am having trouble using ItemsSourceBinding to bind the items to another column on the row. If I use ItemsSource I have no trouble - see the sample code below.

How should I be using ItemsSourceBinding for a System.Data.DataRow data context?

public partial class MainWindow : Window

{

public MainWindow()

{

StackPanel stackPanel = new StackPanel();

stackPanel.Children.Add( CreateItemsSourceGridTelerik_WORKING() );

stackPanel.Children.Add( CreateItemsSourceGridTelerik_NOTWORKING() );

Content = stackPanel;

}

public class Node

{

public string Description { get; set; }

public string Code { get; set; }

}

RadGridView CreateItemsSourceGridTelerik_WORKING()

{

RadGridView grid = new RadGridView { AutoGenerateColumns = false };

grid.Columns.Add( new GridViewComboBoxColumn

{

DataMemberBinding = new Binding( "Column" ),

DisplayMemberPath = "Description",

SelectedValueMemberPath = "Code",

ItemsSource = new Node[] {

new Node { Description = "One", Code = "1" },

new Node { Description = "Two", Code = "2" }

},

} );

DataTable table = new DataTable();

table.Columns.Add( "Column" );

DataRow row = table.NewRow();

table.Rows.Add( row );

row[ "Column" ] = "2";

grid.ItemsSource = table.DefaultView;

return grid;

}

RadGridView CreateItemsSourceGridTelerik_NOTWORKING()

{

RadGridView grid = new RadGridView { AutoGenerateColumns = false };

grid.Columns.Add( new GridViewComboBoxColumn

{

DataMemberBinding = new Binding( "Column" ),

DisplayMemberPath = "Description",

SelectedValueMemberPath = "Code",

ItemsSourceBinding = new Binding( "ColumnItems" ),

} );

DataTable table = new DataTable();

table.Columns.Add( "Column" );

table.Columns.Add( "ColumnItems" );

DataRow row = table.NewRow();

table.Rows.Add( row );

row[ "Column" ] = "2";

row[ "ColumnItems" ] = new Node[] {

new Node { Description = "One", Code = "1" },

new Node { Description = "Two", Code = "2" }

};

grid.ItemsSource = table.DefaultView;

return grid;

}

GridView

answered on 06 Jan 2011

7 answers

364 views

Drag and drop

Hello,
I need to implement a drag and drop to reorder rows in a RadTreeListView, and to drop items from RadTreeView to the RadTreeListView control.
Do you have some example of this and also example on how to build the dragged tooltip.

Thank you

TreeListView

answered on 06 Jan 2011

11 answers

326 views

Load/save filters settings

Hi,

For one of my customer, I've to load the filter settings of a RadGridView when I load the application, and save them when I quit the application.

How can I do that?

Thank you!

GridView

answered on 06 Jan 2011

0 answers

177 views

WPF GridView Editing template

Hi,

i want to include an editing template in my gridview as per the attachment. Users will be able to add new row only through the editing template (last row) . Also in the template, all the fields by default should be in edit (not in display mode). Is there any way to achieve this? Currently the gridview is allowing only one cell as editable mode by default. Its not allowing the whole row to be in editable mode. The code snippet below is allowing a single cell to be in editable mode.

var rowToEdit = this.grdReferrals.ItemContainerGenerator.ContainerFromItem(this.grdReferrals.SelectedItem) as GridViewRow;

if (rowToEdit != null)

{

GridViewCell currentCell = (GridViewCell)rowToEdit.Cells[0];

if (null != currentCell)

currentCell.IsCurrent = true;

rowToEdit.BeginEdit();

}

Expecting a quick reply from you,

Regards,
Saranya.

GridView

asked on 06 Jan 2011

3 answers

309 views

RadDateTimePicker Default Style

Hi guys,

I would like to change a the style of RadDateTimePicker (selection color etc). For that purpose I would like to ask you about default styles for the mentioned control.

P.S. I'd like also to notify about the bug that I've found.
If you will click on the red dot that you will find in attached image the control will disappeared.

Thank you in advance,
Julian

DateTimePicker

answered on 06 Jan 2011

3 answers

107 views

How to cancel drop in handler specified by AddDropInfoHandler method

When DragComplete status is hit in my DropInfo handler, I want to update something in the DB. If that fails, I would like the appointment drop to be canceled. How can I achieve this?

Thanks,
Rod

ScheduleView

answered on 06 Jan 2011