I have an AutoCompleteBox defined like this:

 

The ItemSource is set to a List<string>.

I then try something like this but acb_Interviewer.SelectedItem remains null and only the watermark is visible in the control.

 

 What am I doing wrong?

Hello!

I have a question about the RadContextMenu. I created my class DataGridView this class inherited from RadGridView. Look this:

 public class DataGridView : RadGridView
{

public DataGridView()
{

            // create menu
            var contextMenu = new RadContextMenu();
            RadMenuItem item = new RadMenuItem();
            item.Header = "Hello";
            contextMenu.Items.Add(item);
            contextMenu.Opened += ContextMenu_Opened;
            //add something that we can use to get the data grid on context menu events
            contextMenu.ItemClick += ContextMenu_ItemClick;
            contextMenu.Opening += ContextMenu_Opening;
            // set menu Theme
            StyleManager.SetTheme(contextMenu, StyleManager.GetTheme(this));
            RadContextMenu.SetContextMenu(this, contextMenu);

    }

}

I'm having a problem adding CartesianGridLineAnnotation to series of square cartesian plots. I have four square charts, each going from x to -x in each axis with 0,0 in the middle. I want to add a dark gridline to the 0, 0 point and CartesianGridLineAnnotation looked like the perfect thing for this. I added the following code :

  

However when I view my charts the annotation appears ​1 pixel left of the 0 value on the horizontal axis and 1 pixel above the 0 value on the vertical axis. This is true for the first two charts, the second two the vertical axis line seems to be in the perfect position yet they are being drawn with the exact same code. 

Whenever the window size of the app is changed the charts are resized to maintain a square charting area. I notice as I resize the charts the annotations move from being one side of the 0 value, to being on the 0 value, then being the other side of the 0 value. 

I am currently using an older version of the Telerik dlls (2013.3.1204.40), is there a fix/workaround that will ensure that the annotation lines are drawn exactly on the specified value? 

I've attached a picture of the four charts in question on their initial display. You can see that the black annotations do not line up with the gray grid lines.

Thanks for the help.

Hi folks.

My client had an exception, and I have no idea how to reproduce it.

Do you have any idea what could cause it?

I'm using telerik for wpf version 2015.2.728.40.

Thanks a lot!

I created the following style:


Everything works perfectly except this line:
<Setter Property="Background" Value="CornflowerBlue" />

So, how can I set the background color of a selected row?

<telerik:RadCartesianChart x:Name="cartesianChart">
    <telerik:RadCartesianChart.Annotations>
  <telerik:CartesianGridLineAnnotation Axis="{Binding ElementName=verticalAxis}" 
Value="6"
Stroke="Red"
StrokeThickness="1"/>
<telerik:CartesianGridLineAnnotation Axis="{Binding ElementName=horizontalAxis}" 
Value="2.8"
Stroke="Blue"
StrokeThickness="1"/>
</telerik:RadCartesianChart.Annotations>

<telerik:RadCartesianChart.Series>
<telerik:ScatterPointSeries>
<telerik:ScatterPointSeries.DataPoints>
<telerik:ScatterDataPoint XValue="1" YValue="5"/>
<telerik:ScatterDataPoint XValue="3" YValue="2"/>
<telerik:ScatterDataPoint XValue="4" YValue="7"/>
</telerik:ScatterPointSeries.DataPoints>
</telerik:ScatterPointSeries>
</telerik:RadCartesianChart.Series>

<telerik:RadCartesianChart.VerticalAxis>
<telerik:LinearAxis x:Name="verticalAxis"/>
</telerik:RadCartesianChart.VerticalAxis>

<telerik:RadCartesianChart.HorizontalAxis>
<telerik:LinearAxis x:Name="horizontalAxis"/>
</telerik:RadCartesianChart.HorizontalAxis>
</telerik:RadCartesianChart>

</telerik:RadCartesianChart>

Hi guys,

 

I use the RadGridView marginally, with a dynamic resizing of the cells height (with ctrl + mouse wheel), like this :

http://image.noelshack.com/fichiers/2015/47/1447859201-5988-noelpush.png

And I would like to get in my ViewModel the index of the row on the top and bottom of the view (Tstamp 23.285 (top) and 27.569 on my screenshot for the situation from the left).

 

I tried to use the ScrollPositionIndicatorTemplate but I would like a real time mode (if possible), I don't know how I can send the value to my ViewModel, and it is not very accurate anyway...

And I tried to use the ScrollChanged event (with a ScrollChangedEventArg parameter) sends wrong values. I can't use the VerticalOffset received, because it doesn't corresponds to the reality. I'm forced to go top of the RadGridView and scroll slowly all my GridView if I want receive a correct VerticalOffset (this technique updates virtualized values visibly). Can we refresh manually the "scroll values" after a modification of the height of the cells ?

Or is there a function that directly gives me these rows ?

 

I hope to have correctly explained the problem. Thanks for your help!

Regards.

Hi,

We are heavy users of the GridView control. We have run into binding errors, however, when using UniqueName and DataMemberBinding. In our grids, we bind all columns using DataMemberBinding, but we use UniqueName on some columns that are NOT for binding and instead have a custom cell template defined (e.g. place buttons in the cell). The UniqueName is used for this column so we can toggle its visibility when the user exports the grid to Excel. In this case, the code gets a reference to the grid, gets the column to disable by the UniqueName and then turns the visibility to off. After the export, it turns the visibility on.

Here's a snippet:


This all works fine, but the output window can have hundreds and hundreds of binding errors (one for each row in the grid!!) which hurts performance. If we remove the UniqueName it goes away, but then we can't toggle the columns on/off.

A previous post on this topic in the Silverlight forums dates from 2011 and mentions UniqueName being deprecated yet in the latest DLL it is still very much present and useful. Is there any solution for this situation? For now, we are finding the column to toggle using the header but this makes localization extremely challenging.

Steve

Hello,

Using RadCartesianChart with three LineSeries as below, ItemsSource bound to three members of ObservableCollection<prodnMonthly>.  Charts display nicely with initial LinearAxis, but when axes are programmatically changed to LogarithmicAxis, data disappears and no vertical axis values are shown.  Horizontal axis values are displayed correctly throughout.

Guidance would be appreciated!

Regards,
Bob

                      <telerik:RadCartesianChart Grid.Row="2" x:Name="ProdnChart" Margin="10" Background="White"
                                                   Visibility="{Binding IsSelectedEntityProductionData, Converter={StaticResource BoolToVisibilityConverter}}">
                                               
                            <telerik:RadCartesianChart.HorizontalAxis >
                                <telerik:DateTimeContinuousAxis x:Name="ProdnChartHorAxis" LabelFitMode="Rotate" LastLabelVisibility="Clip" LabelFormat="MMM-yy"
                                    Minimum="{Binding ElementName=ProdnTimeBar, Path=SelectionStart}" Maximum="{Binding ElementName=ProdnTimeBar, Path=SelectionEnd}"
                                                                MajorStepUnit="Month" />
                            </telerik:RadCartesianChart.HorizontalAxis>
                            <!-- Tooltip -->
                            <telerik:RadCartesianChart.Behaviors>
                                <telerik:ChartTooltipBehavior Placement="Top" VerticalOffset="0"  />
                            </telerik:RadCartesianChart.Behaviors>
                          
                            <telerik:RadCartesianChart.TooltipTemplate>
                                <DataTemplate>
                                    <Border Background="White" BorderBrush="Black" BorderThickness="1" CornerRadius="2">
                                        <Grid>
                                            <Grid.RowDefinitions>
                                                <RowDefinition Height="Auto" />
                                                <RowDefinition Height="Auto" />
                                                <RowDefinition Height="Auto" />
                                                <RowDefinition Height="Auto" />
                                                <RowDefinition Height="Auto" />
                                            </Grid.RowDefinitions>
                                            <Grid.ColumnDefinitions>
                                                <ColumnDefinition Width="Auto" />
                                                <ColumnDefinition Width="Auto" />
                                                <ColumnDefinition Width="Auto" />
                                            </Grid.ColumnDefinitions>
                                           
                                            <Border Grid.Row="0" Grid.ColumnSpan="3" BorderBrush="Black" BorderThickness="0,0,0,1" >
                                                <TextBlock Text="{Binding DataItem.ProductionDate, StringFormat='yyyy MMMMM'}" FontWeight="Black" HorizontalAlignment="Center" Margin="0,3,0,3" />
                                            </Border>
                                            <TextBlock Grid.Row="1" Grid.Column="0" Text="Oil:" Margin="5,3,5,0"/>
                                            <TextBlock Grid.Row="1" Grid.Column="1" Text="{Binding DataItem.Oil, StringFormat='#,0'}" HorizontalAlignment="Right" Margin="5,3,3,0" />
                                            <TextBlock Grid.Row="1" Grid.Column="2" Text="BBL" Margin="0,3,5,0"/>
                                            <TextBlock Grid.Row="2" Grid.Column="0" Text="Gas:" Margin="5,0,5,0"/>
                                            <TextBlock Grid.Row="2" Grid.Column="1" Text="{Binding DataItem.Gas, StringFormat='#,0'}" HorizontalAlignment="Right" Margin="5,0,3,0" />
                                            <TextBlock Grid.Row="2" Grid.Column="2" Text="MCF" Margin="0,0,5,0"/>
                                            <TextBlock Grid.Row="3" Grid.Column="0" Text="Water:" Margin="5,0,5,3"/>
                                            <TextBlock Grid.Row="3" Grid.Column="1" Text="{Binding DataItem.Water, StringFormat='#,0'}" HorizontalAlignment="Right" Margin="5,0,3,3" />
                                            <TextBlock Grid.Row="3" Grid.Column="2" Text="BBL" Margin="0,0,5,3"/>
                                        </Grid>
                                    </Border>
                                </DataTemplate>
                            </telerik:RadCartesianChart.TooltipTemplate>
                            <telerik:RadCartesianChart.Grid>
                                <telerik:CartesianChartGrid MajorLinesVisibility="XY" />
                            </telerik:RadCartesianChart.Grid>
                           
                            <telerik:RadCartesianChart.Annotations >
                                <telerik:CartesianGridLineAnnotation
                                    Axis="{Binding ElementName=ProdnChart, Path=HorizontalAxis}"
                                    Value="01/01/1960" Stroke="Tomato" StrokeThickness="3"
                                    ToolTipService.ToolTip="Well test Jan 1960"/>
                               
                            </telerik:RadCartesianChart.Annotations>
                           
                           
                           
                            <telerik:RadCartesianChart.Series >
                                        
                                <!-- Gas -->
                                <telerik:LineSeries  x:Name="GasSeries" Stroke="Red" StrokeThickness="1"
                                                     ItemsSource="{Binding prodnMonthlies}" ValueBinding="Gas"
                                                     CategoryBinding="ProductionDate"
                                                     VerticalAxis="{Binding SelectedVerticalAxisOption.GasAxis}"                                                    
                                                     >
                                   
                                    <telerik:LineSeries.PointTemplate>
                                        <DataTemplate>
                                            <Ellipse Height="4" Width="4" Fill="Red" />
                                        </DataTemplate>
                                    </telerik:LineSeries.PointTemplate>
                                    <telerik:LineSeries.LegendSettings>
                                        <telerik:SeriesLegendSettings Title="Gas" />
                                    </telerik:LineSeries.LegendSettings>
                                </telerik:LineSeries>
                                <!-- Oil -->
                                <telerik:LineSeries  x:Name="OilSeries" Stroke="DarkGreen" StrokeThickness="1"
                                                     ItemsSource="{Binding prodnMonthlies}" ValueBinding="Oil"
                                                     CategoryBinding="ProductionDate"
                                                     VerticalAxis="{Binding SelectedVerticalAxisOption.OilAxis}"
                                                     >
                                    <telerik:LineSeries.PointTemplate>
                                        <DataTemplate>
                                            <Ellipse Height="4" Width="4" Fill="DarkGreen" />
                                        </DataTemplate>
                                    </telerik:LineSeries.PointTemplate>
                                    <telerik:LineSeries.LegendSettings>
                                        <telerik:SeriesLegendSettings Title="DarkGreen" />
                                    </telerik:LineSeries.LegendSettings>
                                </telerik:LineSeries>
                                <!-- Water -->
                                <telerik:LineSeries  x:Name="WaterSeries" Stroke="Blue" StrokeThickness="0.7"
                                                     ItemsSource="{Binding prodnMonthlies}" ValueBinding="Water"
                                                     CategoryBinding="ProductionDate"
                                                     VerticalAxis="{Binding SelectedVerticalAxisOption.WaterAxis}"
                                                     >
                                    <telerik:LineSeries.PointTemplate>
                                        <DataTemplate>
                                            <Ellipse Height="3" Width="3" Fill="Blue" />
                                        </DataTemplate>
                                    </telerik:LineSeries.PointTemplate>
                                    <telerik:LineSeries.LegendSettings>
                                        <telerik:SeriesLegendSettings Title="Blue" />
                                    </telerik:LineSeries.LegendSettings>
                                </telerik:LineSeries>
                            </telerik:RadCartesianChart.Series>
                           
                            <!-- Chart Context Menu -->
                            <telerik:RadContextMenu.ContextMenu>
                                <telerik:RadContextMenu>
                                    <!-- Vertical Axis -->
                                    <telerik:RadMenuItem Header="Axis">
                                       
                                        <telerik:RadMenuItem Header="Linear"
                                            IsCheckable="False" IsChecked="{Binding SelectedVerticalAxisOption.Label, Converter={StaticResource StringEqualityToBoolConverter}, ConverterParameter='Linear'}"
                                            ToolTipService.ToolTip="Click for a linear vertical axis"
                                            Command="{Binding ChartContextMenuAxisCommand}" CommandParameter="Linear"/>
                                       
                                        <telerik:RadMenuItem Header="Logarithmic"
                                            IsCheckable="False" IsChecked="{Binding SelectedVerticalAxisOption.Label, Converter={StaticResource StringEqualityToBoolConverter}, ConverterParameter='Logarithmic'}"              
                                            ToolTipService.ToolTip="Click for a linear vertical axis"
                                            Command="{Binding ChartContextMenuAxisCommand}" CommandParameter="Logarithmic"/>
                                       
                                    </telerik:RadMenuItem>   
                                </telerik:RadContextMenu>
                            </telerik:RadContextMenu.ContextMenu>
                        </telerik:RadCartesianChart>


      public class prodnMonthly : INotifyPropertyChanged
        {
            private string _entity;
            private DateTime _productionDate;
            private int _gas;
            private int _oil;
            private int _water;
            private int _bOE;
            private double _percentWater;
            private double _ratioGasOil;
            private int _monthsInProduction;
            private double? _oilDecline;
            private double? _gasDecline;

            public string Entity
            {
                get
                {
                    return _entity;
                }
                set
                {
                    if (value != _entity)
                    {
                        _entity = value;
                        RaisePropertyChanged("Entity");
                    }
                }
            }
            public DateTime ProductionDate
            {
                get
                {
                    return _productionDate;
                }
                set
                {
                    if (value != _productionDate)
                    {
                        _productionDate = value;
                        RaisePropertyChanged("ProductionDate");
                    }
                }
            }
            public int Gas
            {
                get
                {
                    return _gas;
                }
                set
                {
                    if (value != _gas)
                    {
                        _gas = value;
                        RaisePropertyChanged("Gas");
                    }
                }
            }
            public int Oil
            {
                get
                {
                    return _oil;
                }
                set
                {
                    if (value != _oil)
                    {
                        _oil = value;
                        RaisePropertyChanged("Oil");
                    }
                }
            }
            public int Water
            {
                get
                {
                    return _water;
                }
                set
                {
                    if (value != _water)
                    {
                        _water = value;
                        RaisePropertyChanged("Water");
                    }
                }
            }
            public int BOE
            {
                get
                {
                    return _bOE;
                }
                set
                {
                    if (value != _bOE)
                    {
                        _bOE = value;
                        RaisePropertyChanged("BOE");
                    }
                }
            }
            public double PercentWater
            {
                get
                {
                    return _percentWater;
                }
                set
                {
                    if (value != _percentWater)
                    {
                        _percentWater = value;
                        RaisePropertyChanged("PercentWater");
                    }
                }
            }
            public double RatioGasOil
            {
                get
                {
                    return _ratioGasOil;
                }
                set
                {
                    if (value != _ratioGasOil)
                    {
                        _ratioGasOil = value;
                        RaisePropertyChanged("RatioGasOil");
                    }
                }
            }
            public int MonthsInProduction
            {
                get
                {
                    return _monthsInProduction;
                }
                set
                {
                    if (value != _monthsInProduction)
                    {
                        _monthsInProduction = value;
                        RaisePropertyChanged("MonthsInProduction");
                    }
                }
            }
            public double? OilDecline
            {
                get
                {
                    return _oilDecline;
                }
                set
                {
                    if (value != _oilDecline)
                    {
                        _oilDecline = value;
                        RaisePropertyChanged("OilDecline");
                    }
                }
            }
            public double? GasDecline
            {
                get
                {
                    return _gasDecline;
                }
                set
                {
                    if (value != _gasDecline)
                    {
                        _gasDecline = value;
                        RaisePropertyChanged("GasDecline");
                    }
                }
            }
            public event PropertyChangedEventHandler PropertyChanged;
            protected void RaisePropertyChanged(string _name)
            {
                PropertyChangedEventHandler handler = PropertyChanged;
                if (handler != null)
                {
                    handler(this, new PropertyChangedEventArgs(_name));
                }
            }
            public prodnMonthly(string _entity, DateTime _pdate, int _oil, int _gas, int _water, int _boe,
                              double _ratioGasOil, double _percentWater, int _monthsInProduction)
            {
                Entity = _entity;
                ProductionDate = _pdate;
                Oil = _oil;
                Gas = _gas;
                Water = _water;
                BOE = _boe;
                RatioGasOil = _ratioGasOil;
                PercentWater = _percentWater;
                MonthsInProduction = _monthsInProduction;
                OilDecline = null;
                GasDecline = null;
            }
        }

 

Hi,

To use the CaretFactory on the radtextbox as suggested as workaround by a telerik developer ( http://www.telerik.com/forums/automationproperties-not-reqognized-by-narrator ) I needed to update my dll's to version 2015.2.728.45.

This update broke my drag drop support in the application. When I use a touch screen to drag drop nothing is happining, before the update everything whas fine, tried to get the version without the update and the drag drop is working again.

Any idea how to fix this functionality? good drag drop support is one of the main reasons we are using telerik.