Was working with some data and I noticed some bug when the YValue of a point is negative while the minimum of an axis is positive.

I made a demo to reproduce the bug

xaml:

ViewModel:

public class ViewModel : INotifyPropertyChanged

    {

 

        private double _minY = -10;

        private double _maxY = 50;

        private double _stepY = 10;

 

        private double _minX = 0;

        private double _maxX = 50;

        private double _stepX = 10;

 

        public ViewModel()

        {

            MaxY = 50;

            StepY = 10;

            MinX = 0;

            MaxX = 50;

            StepX = 10;

 

            Points = new ObservableCollection<Tuple<double, double, double, double>>();

 

            Random r = new Random();

 

            Points.Add(Tuple.Create(.1, -8d, 1d, 5d));

 

            for (double i = 20; i < 50; i += 4)

            {

                Points.Add(Tuple.Create(i, i - 8, (i - 5) + (r.NextDouble() * 9 - 4.5), i - 25));

            }

        }

 

        public ObservableCollection<Tuple<double, double, double, double>> Points { get; private set; }

 

        public double MinX { get; private set; }

 

        public double MaxX { get; private set; }

 

        public double StepX { get; private set; }

 

        public double MinY

        {

            get

            {

                return _minY;

            }

            set

            {

                _minY = value;

                OnPropertyChanged("MinY");

            }

        }

 

        public double MaxY { get; private set; }

 

        public double StepY { get; private set; }

 

        protected void OnPropertyChanged(string propertyName)

        {

            if (PropertyChanged != null)

            {

                PropertyChanged.Invoke(this, new PropertyChangedEventArgs(propertyName));

            }

        }

 

        public event PropertyChangedEventHandler PropertyChanged;

    }

The slider bar changes the Minimum of the AxisY and as soon as the minimum hit 0, you can see that the line are now rendered as if the YValue of the point was 0.

I posted the following in PITS, but I wanted to also post it here in hopes of finding an easy workaround or some sort of temporary solution to my problem.

If the first PanelBarItem has ever been expanded, selecting the second of the two identical children causes the first child to be selected instead. This is easily demonstrated with the following example:

       <telerik:RadPanelBar Height="200">
                <telerik:RadPanelBarItem Header="Parent A">
                    Child
                </telerik:RadPanelBarItem>
                <telerik:RadPanelBarItem Header="Parent B">
                    Child
                </telerik:RadPanelBarItem>
       </telerik:RadPanelBar>

This is just a simple example, but it happens independent of the number of RadPanelItems or children that exist; when the second of two identical children is selected the result will be that the first child is selected.

Any ideas?

while working with the Q3 11 controls, everything worked well with draging from the TreeView.

The current scenario is that we allow reordering of tree items, but we also allow dragging outside the tree.
When the dragged treeview item is being dragged over a specific control, we cancel the drag using:

 

Telerik.Windows.DragDrop.DragDropManager.AddQueryContinueDragHandler(solutionTree, solutionTree_QueryContinueDrag);

And then in the QueryContinueDrag do:

e.Action = DragAction.Cancel;

e.Handled = true;


And call (with a BeginInvoke) to a function on my classes that starts a DragDrop (using microsoft drag drop) with my own UI.


The exception happens after the drop.

All signs point to the fact that the exception comes from your code.


This is the stack stace:
   at MS.Win32.UnsafeNativeMethods.DoDragDrop(IDataObject dataObject, IOleDropSource dropSource, Int32 allowedEffects, Int32[] finalEffect)
   at System.Windows.OleServicesContext.OleDoDragDrop(IDataObject dataObject, IOleDropSource dropSource, Int32 allowedEffects, Int32[] finalEffect)
   at System.Windows.DragDrop.OleDoDragDrop(DependencyObject dragSource, DataObject dataObject, DragDropEffects allowedEffects)
   at System.Windows.DragDrop.DoDragDrop(DependencyObject dragSource, Object data, DragDropEffects allowedEffects)
   at Telerik.Windows.DragDrop.DragDropManager.DoDragDrop(DependencyObject dragSource, Object data, DragDropEffects allowedEffects, DragDropKeyStates initialKeyState, Object dragVisual, Point relativeStartPoint, Point dragVisualOffset)
   at Telerik.Windows.DragDrop.DragInitializer.StartDrag()
   at Telerik.Windows.DragDrop.DragInitializer.StartDragPrivate(UIElement sender)
   at Telerik.Windows.DragDrop.DragInitializer.DragSourcePreviewMouseMove(Object sender, MouseEventArgs e)
   at System.Windows.Input.MouseEventArgs.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)
   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.Threading.Dispatcher.PushFrame(DispatcherFrame frame)
   at System.Windows.Application.RunDispatcher(Object ignore)
   at System.Windows.Application.RunInternal(Window window)
   at System.Windows.Application.Run(Window window)
   at System.Windows.Application.Run()
   at Unitronics.Shell.UI.App.Main() in C:\Users\itais\Desktop\NG\NG Projects\Sources\Unitronics.Shell\Unitronics.Shell.UI\obj\Debug\App.g.cs:line 0
   at System.AppDomain._nExecuteAssembly(RuntimeAssembly assembly, String[] args)
   at System.AppDomain.ExecuteAssembly(String assemblyFile, Evidence assemblySecurity, String[] args)
   at Microsoft.VisualStudio.HostingProcess.HostProc.RunUsersAssembly()
   at System.Threading.ThreadHelper.ThreadStart_Context(Object state)
   at System.Threading.ExecutionContext.Run(ExecutionContext executionContext, ContextCallback callback, Object state, Boolean ignoreSyncCtx)
   at System.Threading.ExecutionContext.Run(ExecutionContext executionContext, ContextCallback callback, Object state)
   at System.Threading.ThreadHelper.ThreadStart()




A similar problem was reported here:http://www.telerik.com/community/forums/wpf/draganddrop/app-crash-when-dropping-into-wordpad.aspx


Please fix it, or suggest a fix ASAP.

Thanks.

 

 

 

 

 

 

 

 

Hello. I have som trouble with dynamic create DataTemplate.
and i need set DataMemberBiding on this column,
so usually I use somthing like this
but I can't found DataMemberBidingProperty. 
What can I use instead?

Dear Telerik Team Member
Hiii can anyone help me i have very common issue.I m making hospital managment software and i want to keep track of appointents in sql 2008 using linq which are made on rad-schedulerview..one more issue i want to make customs appointment window like it have one combobox which get data from database,on selecting value from combobox i retrive other value on text box then show that information on 
rad-schedulerview's appointment panel i mean on that small note which will place on timeline

Thanks In Advance
Kaustubh

We have implemented the WPF expander. however on first click on the closed expander, nothing occurs. User has to click twice for expander to function. Subsequent to that, exoander works fine. Any suggestions?

I have a treeview with tri-state mode enabled bound to a hierachical data source. When I check some children of a node (but not all), a red adorner border surrounds the whole RadTreeViewItem. A screenshot is attached.

How do I disable this border?

RadTreeView XAML:


HierarchicalDataTemplate:


RadTreeViewItemStyle:



Thank you,

James

Hi,

in my project I have a RadGridView with all features enable: Sorting, Grouping, etc...

In my grid, I have a GridViewSelectColumn to let my users to select all the rows they want. With this kind of column, I think, the logical pattern was respected by having a checkbox in the header to select/unselect all the rows in the grid. I'm trying to get an answer why this kind of column is missing when you grouping data. What should I do if I group a set of data by date and for a specific date I want to select all the subset items (more than 500 items)???

I'm trying to implement something but I don't know how to acheive it. Actually, I have a problem with the interaction of the groupcheckbox and the rest of the grid. I need to have my groupcheckbox to react the same has the header one, I mean, if I click a on of my groupcheckbox, I need to select all teh group subset and of course, if that mean that all data in the grid is selected after my click, of course the header checkbox should become check. Of course, my groupcheckbox should react to the fact that not all subset data was selected or not by becoming check or not. If the master header checkbox in the header should check all my groupcheckbox and so on...

Please help me, I know I'm not for from the solution ;)

Window1.xaml
------------------
<Window x:Class="RadControlsWpfApp6.Window1"
  xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
  xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
  xmlns:telerik="http://schemas.telerik.com/2008/xaml/presentation"               
        xmlns:alain="clr-namespace:RadControlsWpfApp6"
  Title="Window1" Height="300" Width="300" WindowState="Maximized" Name="Me">
  <Grid>
        <telerik:RadGridView x:Name="grid" AutoGenerateColumns="False" IsReadOnly="True" RowIndicatorVisibility="Collapsed" SelectionMode="Multiple" PreviewMouseLeftButtonUp="grid_PreviewMouseLeftButtonUp" SelectionChanged="grid_SelectionChanged">
            <telerik:RadGridView.GroupHeaderTemplate>
                <DataTemplate>
                    <StackPanel Orientation="Horizontal" >
                        <alain:GridViewGroupCheckBox x:Name="GroupCheckBox"/>
                        <TextBlock Margin="5 0" Text="{Binding Group.Key}" />
                    </StackPanel>
                </DataTemplate>
            </telerik:RadGridView.GroupHeaderTemplate>
            <telerik:RadGridView.Columns>
                <telerik:GridViewSelectColumn />
                <telerik:GridViewDataColumn DataMemberBinding="{Binding Path=LastName}" Header="LastName" />
                <telerik:GridViewDataColumn DataMemberBinding="{Binding Path=FirstName}" Header="FirstName" />
            </telerik:RadGridView.Columns>
        </telerik:RadGridView>
    </Grid>
</Window>


Window1.xaml.cs
---------------------

using System;
using System.Collections.Generic;
using System.Linq;
using System.Net;
using System.Windows;
using System.Windows.Controls;
using System.Windows.Documents;
using System.Windows.Input;
using System.Windows.Media;
using System.Windows.Media.Animation;
using System.Windows.Shapes;

using Telerik.Windows.Controls;
using Telerik.Windows.Controls.GridView;
using Telerik.Windows.Data; 

namespace RadControlsWpfApp6
{
    /// <summary>
    /// Interaction logic for Window1.xaml
    /// </summary>
    public partial class Window1 : Window
    {
        public Window1()
        {
            InitializeComponent();
           
            AllPersons = new List<Person>();

            AllPersons.Add(new Person() { LastName = "Test2", FirstName = "Test1" });
            AllPersons.Add(new Person() { LastName = "Test1", FirstName = "Test2" });
            AllPersons.Add(new Person() { LastName = "Test2", FirstName = "Test1" });

            grid.ItemsSource = AllPersons;
        }

        public List<Person> AllPersons { get; set; }

        private void grid_PreviewMouseLeftButtonUp(object sender, MouseButtonEventArgs e)
        {
            var senderElement = (FrameworkElement)e.OriginalSource;
            var clickedCell = senderElement.ParentOfType<GridViewHeaderCell>();

            if (clickedCell != null)
            {
                CheckBox chkHeader = clickedCell.Column.Header as CheckBox;
                if (chkHeader != null)
                {
                    IEnumerable<GridViewGroupRow> grpRows = grid.ChildrenOfType<GridViewGroupRow>();
                    GridViewGroupCheckBox.CheckUncheckItems(true, !(bool)chkHeader.IsChecked, grpRows);
                }
            }
        }

        private void grid_SelectionChanged(object sender, SelectionChangeEventArgs e)
        {
            GridViewItemContainerGenerator container = this.grid.ItemContainerGenerator;
                       
            foreach (var oneItem in e.AddedItems)
            {                               
                object obj = container.ContainerFromItem(oneItem);               
            }

            foreach (var oneItem in e.RemovedItems)
            {
            }
        }
    }

    public class Person
    {
        public string LastName { get; set; }
        public string FirstName { get; set; }
    }
}

GridViewGroupCheckBox.xaml
--------------------------------------
<UserControl x:Class="RadControlsWpfApp6.GridViewGroupCheckBox"
    xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
    xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
    Height="Auto" Width="Auto">
    <Grid>
        <CheckBox x:Name="cbGroup" Click="cbGroup_Click" />
    </Grid>
</UserControl>


GridViewGroupCheckBox.xaml.cs
------------------------------------------

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Windows;
using System.Windows.Controls;
using System.Windows.Data;
using System.Windows.Documents;
using System.Windows.Input;
using System.Windows.Media;
using System.Windows.Media.Imaging;
using System.Windows.Navigation;
using System.Windows.Shapes;

using Telerik.Windows.Controls;
using Telerik.Windows.Controls.GridView;
using Telerik.Windows.Data;

namespace RadControlsWpfApp6
{
    /// <summary>
    /// Interaction logic for GridViewGroupCheckBox.xaml
    /// </summary>
    public partial class GridViewGroupCheckBox : UserControl
    {
        #region Constructors.
        /// <summary>
        /// Costructor.
        /// </summary>
        public GridViewGroupCheckBox()
        {
            InitializeComponent();
            mIsChecked = false;
        }
        #endregion

        #region Public properties.
        public bool IsChecked
        {
            get
            {
                return mIsChecked;
            }
            set
            {
                if (mIsChecked != value)
                {
                    mIsChecked = value;
                    cbGroup.IsChecked = mIsChecked;
                }
            }
        }

        public GridViewGroupRow GroupRow
        {
            get
            {
                return cbGroup.ParentOfType<GridViewGroupRow>();
            }
        }
        #endregion.

        #region Private event handlers.
        /// <summary>
        /// CheckBox click triggered.
        /// </summary>
        /// <param name="sender"></param>
        /// <param name="e"></param>       
        private void cbGroup_Click(object sender, RoutedEventArgs e)
        {
            mIsChecked = (bool)(sender as CheckBox).IsChecked;
            applyChangesOnGrid(sender as CheckBox);
        }
        #endregion

        #region Private medthods.
        /// <summary>
        /// Apply changes
        /// </summary>
        /// <param name="pCheckBox"></param>
        private void applyChangesOnGrid(CheckBox pCheckBox)
        {
            CheckUncheckItems(false, (bool)pCheckBox.IsChecked, this.GroupRow);

            IEnumerable<GridViewGroupRow> groupsChildRows = this.GroupRow.ChildrenOfType<GridViewGroupRow>();
            CheckUncheckItems(false, (bool)pCheckBox.IsChecked, groupsChildRows);
        }

        /// <summary>
        /// Select/unselect all items in a group.
        /// </summary>
        /// <param name="pCheck">TRUE to select or FALSE to unselect.</param>
        /// <param name="pGroupRows">Group of rows.</param>
        static public void CheckUncheckItems(bool pIsInAllSelectionMode, bool pCheck, GridViewGroupRow pGroupRows)
        {
            if (!pIsInAllSelectionMode)
            {
                var theGrid = pGroupRows.ParentOfType<GridViewDataControl>();
                IEnumerable<CheckBox> allCheckBox = pGroupRows.ChildrenOfType<CheckBox>();

                if (allCheckBox != null)
                {
                    foreach (CheckBox oneCheckBox in allCheckBox)
                    {
                        oneCheckBox.IsChecked = pCheck;
                    }
                }

                if (theGrid != null)
                {
                    foreach (var item in pGroupRows.Items)
                    {
                        if (pCheck)
                        {
                            theGrid.SelectedItems.Add(item);
                        }
                        else
                        {
                            theGrid.SelectedItems.Remove(item);
                        }
                    }
                }
            }
        }

        /// <summary>
        /// For each sub group rows, select/unselect all items in a group.
        /// </summary>       
        /// <param name="pCheck">TRUE to select or FALSE to unselect.</param>
        /// <param name="pGroupsRows">List of groups rows.</param>
        static public void CheckUncheckItems(bool pIsInAllSelectionMode, bool pCheck, IEnumerable<GridViewGroupRow> pGroupsRows)
        {
            foreach (GridViewGroupRow oneGroupRow in pGroupsRows)
            {
                CheckUncheckItems(pIsInAllSelectionMode, pCheck, oneGroupRow);
            }
        }
        #endregion

        #region Private declarations.
        private bool mIsChecked;
        #endregion
    }
}

Thank's

Hello,
I have a problem with the title of the views. In my case I have 5 views:
1 - dayview
2 - WeekView
3 - WorkWeekView
4 - MonthView
5 - TimeLineView
I noticed that when I switch to workWeekView, I get the title of dayview.
I could tell how to fix this?

Thanks!

Hello,

i try to set the MaxWidth of a RadNumericUpDown to a Value of 20, but the ActualWidth is allways 60. Is this a bug or am I doing something wrong?

<telerik:RadNumericUpDown Name="numeric" MaxWidth="20" ShowButtons="False" ></telerik:RadNumericUpDown>