Hi,

I need to interfere in the row template, but once I override the template(without any interfering, just took straight from BLEND) I get the following problem:
after adding a new row, the text to add a new row disappears and instead stays a strange empty row.
please respond ASAP!

Thanks,
Rachel

bellow is code:

<Window x:Class="WpfApplication6.MainWindow"
        xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
        xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
        xmlns:maskedInput="clr-namespace:Telerik.Windows.Controls.MaskedInput;assembly=Telerik.Windows.Controls.Input"
        xmlns:telerik="http://schemas.telerik.com/2008/xaml/presentation" Name="This"
      
           xmlns:grid="clr-namespace:Telerik.Windows.Controls.GridView;assembly=Telerik.Windows.Controls.GridView" 
          xmlns:controls="clr-namespace:Telerik.Windows.Controls;assembly=Telerik.Windows.Controls.GridView"
        xmlns:local="clr-namespace:WpfApplication6"       
        Title="MainWindow" >
    <Window.Resources>
        <telerik:BooleanToOpacityConverter x:Key="BooleanToOpacityConverter"/>
        <telerik:BooleanToVisibilityConverter x:Key="BooleanToVisibilityConverter"/>
        <telerik:GridLineWidthToThicknessConverter x:Key="GridLineWidthToThicknessConverter"/>

        <SolidColorBrush x:Key="GridView_InvalidEditIndicatorBackground1" Color="#7FFD0000"/>
        <SolidColorBrush x:Key="GridView_InvalidEditIndicatorBackground2" Color="#FFFCC1C1"/>
        <SolidColorBrush x:Key="GridView_InvalidEditIndicatorBackground3" Color="Red"/>
        <SolidColorBrush x:Key="GridView_InvalidEditIndicatorBackground4" Color="White"/>

        <SolidColorBrush x:Key="ItemOuterBorder_SelectedUnfocused" Color="#FF6F9DB5"/>
        <SolidColorBrush x:Key="ItemBackground_SelectedUnfocused" Color="White"/>
        <SolidColorBrush x:Key="ItemInnerBorder_SelectedUnfocused" Color="White"/>
        <SolidColorBrush x:Key="GridView_RowIndicatorCellBackground_Selected" Color="#FFF5F6F8"/>
        <LinearGradientBrush x:Key="GridView_HierarchyBackground" EndPoint="0.5,1" StartPoint="0.5,0">
            <GradientStop Color="#FFE1E1E1" Offset="1"/>
            <GradientStop Color="#FFD2D2D2"/>
        </LinearGradientBrush>
        <SolidColorBrush x:Key="GridView_RowIndicatorCellBackground" Color="#FFF5F6F8"/>
        <SolidColorBrush x:Key="GridView_NavigatorIndicatorBackground" Color="#FF075672"/>
        <LinearGradientBrush x:Key="GridView_NavigatorIndicatorBorder" EndPoint="0.5,1" StartPoint="0.5,0">
            <GradientStop Color="#FF12A500" Offset="1"/>
            <GradientStop Color="#FF5AAA50"/>
        </LinearGradientBrush>
        <SolidColorBrush x:Key="GridView_EditIndicatorBackground1" Color="#7F848484"/>
        <SolidColorBrush x:Key="GridView_EditIndicatorBackground2" Color="#FFCBCBCB"/>
        <SolidColorBrush x:Key="GridView_EditIndicatorBackground3" Color="#FF848484"/>
        <SolidColorBrush x:Key="GridView_EditIndicatorBackground4" Color="White"/>
        <LinearGradientBrush x:Key="GridView_ErrorIndicatorBackground1" EndPoint="0.5,1" StartPoint="0.5,0">
            <GradientStop Color="#FFFC9999" Offset="0"/>
            <GradientStop Color="#FFC26666" Offset="1"/>
        </LinearGradientBrush>
        <SolidColorBrush x:Key="GridView_ErrorIndicatorBackground2" Color="White"/>
        <LinearGradientBrush x:Key="GridView_ErrorIndicatorBackground3" EndPoint="0.5,1" StartPoint="0.5,0">
            <GradientStop Color="Red" Offset="0"/>
            <GradientStop Color="#FF990000" Offset="1"/>
        </LinearGradientBrush>
        <SolidColorBrush x:Key="GridView_NewRowIndicatorBackground1" Color="White"/>
        <SolidColorBrush x:Key="GridView_NewRowIndicatorBackground2" Color="#FF83A5D2"/>
        <LinearGradientBrush x:Key="GridView_NewRowIndicatorBackground3" EndPoint="1,1" StartPoint="0,0">
            <GradientStop Color="#FF92CC89" Offset="0"/>
            <GradientStop Color="#FF288A1C" Offset="1"/>
        </LinearGradientBrush>
        <LinearGradientBrush x:Key="GridView_NewRowBackground" EndPoint="0.5,1" StartPoint="0.5,0">
            <GradientStop Color="#FFE4E6EA" Offset="0.909"/>
            <GradientStop Color="#FFE3E3E3" Offset="0.074"/>
            <GradientStop Color="White" Offset="0.004"/>
            <GradientStop Color="White" Offset="0.049"/>
            <GradientStop Color="White" Offset="0.991"/>
        </LinearGradientBrush>
        <LinearGradientBrush x:Key="GridView_GroupRowIndicator" EndPoint="0.5,1" StartPoint="0.5,0">
            <GradientStop Color="#FF929394" Offset="0.46"/>
            <GradientStop Color="#FF353535"/>
        </LinearGradientBrush>
        <SolidColorBrush x:Key="ItemOuterBorder_Over" Color="#FFC2DAE3"/>
        <LinearGradientBrush x:Key="ItemInnerBorder_Over" EndPoint="0.5,1" StartPoint="0.5,0">
            <GradientStop Color="#FFE7F3F8" Offset="0"/>
            <GradientStop Color="#FFD4E7EE" Offset="1"/>
        </LinearGradientBrush>
        <LinearGradientBrush x:Key="ItemBackground_Over" EndPoint="0.5,1" StartPoint="0.5,0">
            <GradientStop Color="#FFE7F3F8" Offset="0"/>
            <GradientStop Color="#FFD4E7EE" Offset="1"/>
        </LinearGradientBrush>
        <SolidColorBrush x:Key="ItemOuterBorder_Selected" Color="#FF6F9DB5"/>
        <LinearGradientBrush x:Key="ItemInnerBorder_Selected" EndPoint="0.5,1" StartPoint="0.5,0">
            <GradientStop Color="#FFBBDBE6" Offset="0.12"/>
            <GradientStop Color="#FFB4D2DC" Offset="0"/>
            <GradientStop Color="#FF7FBFD4" Offset="1"/>
        </LinearGradientBrush>
        <LinearGradientBrush x:Key="ItemBackground_Selected" EndPoint="0.5,1" StartPoint="0.5,0">
            <GradientStop Color="#FFBBDBE6" Offset="0.12"/>
            <GradientStop Color="#FFB4D2DC" Offset="0"/>
            <GradientStop Color="#FF7FBFD4" Offset="1"/>
        </LinearGradientBrush>
        <SolidColorBrush x:Key="ItemBackground" Color="White"/>
        <SolidColorBrush x:Key="ControlOuterBorder_Invalid" Color="#FFDB000C"/>
        <SolidColorBrush x:Key="ControlInnerBorder_Invalid" Color="White"/>

        <SolidColorBrush x:Key="ItemOuterBorder_Invalid" Color="#FFCE7D7D"/>
        <LinearGradientBrush x:Key="ItemInnerBorder_Invalid" EndPoint="0.5,1" StartPoint="0.5,0">
            <GradientStop Color="#FFEBF4FD"/>
            <GradientStop Color="#FFDBEAFD" Offset="1"/>
        </LinearGradientBrush>
        <LinearGradientBrush x:Key="ItemBackground_Invalid" EndPoint="0.5,1" StartPoint="0.5,0">
            <GradientStop Color="#FFFCDCDC"/>
            <GradientStop Color="#FFFCC1C1" Offset="1"/>
        </LinearGradientBrush>
        <SolidColorBrush x:Key="ItemBackground_Disabled" Color="#FFE0E0E0"/>
        <SolidColorBrush x:Key="ItemInnerBorder_Disabled" Color="#FFF8F8F8"/>
        <SolidColorBrush x:Key="GridView_GridLinesItemBorder" Color="#FFB0B0B0"/>
        <SolidColorBrush x:Key="GridView_HeaderForeground_Selected" Color="White"/>
        <SolidColorBrush x:Key="GridView_HeaderInnerBorder" Color="#FF85BCD0"/>
        <SolidColorBrush x:Key="GridView_HeaderOuterBorder_Over" Color="#FF188CAD"/>
        <SolidColorBrush x:Key="GridView_HeaderInnerBorder_Over" Color="#FF85BCD0"/>
        <LinearGradientBrush x:Key="GridView_HeaderBackground_Over" EndPoint="0.5,1" StartPoint="0.5,0">
            <GradientStop Color="#FF35B8DC"/>
            <GradientStop Color="#FF188CAD" Offset="1"/>
        </LinearGradientBrush>
        <SolidColorBrush x:Key="GridView_HeaderOuterBorder_Selected" Color="#FF198FB0"/>
        <SolidColorBrush x:Key="GridView_HeaderInnerBorder_Selected" Color="#D85BBBD6"/>
        <LinearGradientBrush x:Key="GridView_HeaderBackground_Selected" EndPoint="0.5,1" StartPoint="0.5,0">
            <GradientStop Color="#FF0E6888" Offset="0.171"/>
            <GradientStop Color="#FF137FA1" Offset="0.917"/>
            <GradientStop Color="#FF1AA1BD" Offset="0.958"/>
            <GradientStop Color="#FF032734" Offset="0.012"/>
            <GradientStop Color="#FF0A5672" Offset="0.083"/>
        </LinearGradientBrush>
        <SolidColorBrush x:Key="GridView_SortIndicatorColor" Color="#FF8DC1D3"/>
        <LinearGradientBrush x:Key="GridView_HeaderBackground" EndPoint="0.5,1" StartPoint="0.5,0">
            <GradientStop Color="#FF0E7094" Offset="1"/>
            <GradientStop Color="#FF1990B1"/>
        </LinearGradientBrush>
        <SolidColorBrush x:Key="ControlInnerBorder" Color="White"/>
        <SolidColorBrush x:Key="ControlOuterBorder" Color="#FFB1B1B1"/>

        <SolidColorBrush x:Key="GridView_ValidationTooltipForeground" Color="#FFFFFFFF"/>
        <SolidColorBrush x:Key="GridView_ValidationTooltipOuterBorder" Color="#FFDC000C"/>
        <SolidColorBrush x:Key="GridView_ValidationTooltipInnerBorder" Color="#FFFFFFFF"/>
        <LinearGradientBrush x:Key="GridView_ValidationTooltipBackground" EndPoint="0.5,1" StartPoint="0.5,0">
            <GradientStop Color="#FFFF424C" Offset="1"/>
            <GradientStop Color="#FFC92931"/>
        </LinearGradientBrush>
        <CornerRadius x:Key="GridView_ValidationTooltipCornerRadius">1</CornerRadius>
        <SolidColorBrush x:Key="DropDownButtonForeground" Color="#FF000000"/>
        <SolidColorBrush x:Key="DropDownButtonOuterBorder" Color="#FFB2B2B2"/>
        <LinearGradientBrush x:Key="DropDownButtonBackground" EndPoint="0.5,1" StartPoint="0.5,0">
            <GradientStop Color="White"/>
            <GradientStop Color="#FFE3E8EB" Offset="1"/>
        </LinearGradientBrush>

        <ControlTemplate x:Key="GridViewRow_ValidationToolTipTemplate" TargetType="ToolTip">
            <Grid x:Name="Root" Margin="5 0" Opacity="0" RenderTransformOrigin="0,0">
                <VisualStateManager.VisualStateGroups>
                    <VisualStateGroup x:Name="OpenStates">
                        <VisualStateGroup.Transitions>
                            <VisualTransition GeneratedDuration="0"/>
                            <VisualTransition GeneratedDuration="0:0:0.2" To="Open">
                                <Storyboard>
                                    <DoubleAnimationUsingKeyFrames Storyboard.TargetName="xform" Storyboard.TargetProperty="X">
                                        <SplineDoubleKeyFrame KeyTime="0:0:0.2" Value="0"/>
                                    </DoubleAnimationUsingKeyFrames>
                                    <DoubleAnimationUsingKeyFrames Storyboard.TargetName="Root" Storyboard.TargetProperty="Opacity">
                                        <SplineDoubleKeyFrame KeyTime="0:0:0.2" Value="1"/>
                                    </DoubleAnimationUsingKeyFrames>
                                </Storyboard>
                            </VisualTransition>
                        </VisualStateGroup.Transitions>
                        <VisualState x:Name="Closed">
                            <Storyboard>
                                <DoubleAnimationUsingKeyFrames Storyboard.TargetName="Root" Storyboard.TargetProperty="Opacity">
                                    <SplineDoubleKeyFrame KeyTime="0" Value="0"/>
                                </DoubleAnimationUsingKeyFrames>
                            </Storyboard>
                        </VisualState>
                        <VisualState x:Name="Open">
                            <Storyboard>
                                <DoubleAnimationUsingKeyFrames Storyboard.TargetName="xform" Storyboard.TargetProperty="X">
                                    <SplineDoubleKeyFrame KeyTime="0" Value="0"/>
                                </DoubleAnimationUsingKeyFrames>
                                <DoubleAnimationUsingKeyFrames Storyboard.TargetName="Root" Storyboard.TargetProperty="Opacity">
                                    <SplineDoubleKeyFrame KeyTime="0" Value="1"/>
                                </DoubleAnimationUsingKeyFrames>
                            </Storyboard>
                        </VisualState>
                    </VisualStateGroup>
                </VisualStateManager.VisualStateGroups>
                <Grid.RenderTransform>
                    <TranslateTransform x:Name="xform" X="-25"/>
                </Grid.RenderTransform>
                <ItemsControl ItemsSource="{TemplateBinding Content}">
                    <ItemsControl.ItemTemplate>
                        <DataTemplate>
                            <Border
                                MinHeight="22"
                                Background="{StaticResource GridView_ValidationTooltipBackground}"
                                BorderBrush="{StaticResource GridView_ValidationTooltipOuterBorder}"
                                BorderThickness="1"
                                CornerRadius="{StaticResource GridView_ValidationTooltipCornerRadius}">
                                <Border BorderBrush="{StaticResource GridView_ValidationTooltipInnerBorder}" BorderThickness="1">
                                    <TextBlock Margin="4 1" MaxWidth="250" Foreground="{StaticResource GridView_ValidationTooltipForeground}" Text="{Binding}" TextWrapping="Wrap"/>
                                </Border>
                            </Border>
                        </DataTemplate>
                    </ItemsControl.ItemTemplate>
                    <ItemsControl.ItemsPanel>
                        <ItemsPanelTemplate>
                            <StackPanel/>
                        </ItemsPanelTemplate>
                    </ItemsControl.ItemsPanel>
                </ItemsControl>
            </Grid>
        </ControlTemplate>

        <ControlTemplate x:Key="GridViewRowTemplate" TargetType="grid:GridViewRow">
            <Border BorderThickness="{TemplateBinding BorderThickness}" BorderBrush="{TemplateBinding BorderBrush}">
                <VisualStateManager.VisualStateGroups>
                    <VisualStateGroup x:Name="FocusStates">
                        <VisualState x:Name="Unfocused"/>
                        <VisualState x:Name="Focused">
                            <Storyboard>
                                <ObjectAnimationUsingKeyFrames Storyboard.TargetName="NavigatorIndicator" Storyboard.TargetProperty="(UIElement.Visibility)">
                                    <DiscreteObjectKeyFrame KeyTime="0">
                                        <DiscreteObjectKeyFrame.Value>
                                            <Visibility>Visible</Visibility>
                                        </DiscreteObjectKeyFrame.Value>
                                    </DiscreteObjectKeyFrame>
                                </ObjectAnimationUsingKeyFrames>
                            </Storyboard>
                        </VisualState>
                    </VisualStateGroup>
                    <VisualStateGroup x:Name="SelectionStates">
                        <VisualState x:Name="Unselected"/>
                        <VisualState x:Name="SelectedUnfocused">
                            <Storyboard>
                                <ObjectAnimationUsingKeyFrames Duration="0" Storyboard.TargetName="Background_Over" Storyboard.TargetProperty="(UIElement.Visibility)">
                                    <DiscreteObjectKeyFrame KeyTime="0">
                                        <DiscreteObjectKeyFrame.Value>
                                            <Visibility>Visible</Visibility>
                                        </DiscreteObjectKeyFrame.Value>
                                    </DiscreteObjectKeyFrame>
                                </ObjectAnimationUsingKeyFrames>
                                <ObjectAnimationUsingKeyFrames Storyboard.TargetName="Background_Over" Storyboard.TargetProperty="BorderBrush">
                                    <DiscreteObjectKeyFrame KeyTime="0:0:0" Value="{StaticResource ItemOuterBorder_SelectedUnfocused}"/>
                                </ObjectAnimationUsingKeyFrames>
                                <ObjectAnimationUsingKeyFrames Storyboard.TargetName="BackgroundInner_Over" Storyboard.TargetProperty="Background">
                                    <DiscreteObjectKeyFrame KeyTime="0:0:0" Value="{StaticResource ItemBackground_SelectedUnfocused}"/>
                                </ObjectAnimationUsingKeyFrames>
                                <ObjectAnimationUsingKeyFrames Storyboard.TargetName="BackgroundInner_Over" Storyboard.TargetProperty="BorderBrush">
                                    <DiscreteObjectKeyFrame KeyTime="0:0:0" Value="{StaticResource ItemInnerBorder_SelectedUnfocused}"/>
                                </ObjectAnimationUsingKeyFrames>
                            </Storyboard>
                        </VisualState>
                    </VisualStateGroup>
                    <VisualStateGroup x:Name="CommonStates">
                        <VisualState x:Name="Normal"/>
                        <VisualState x:Name="MouseOver">
                            <Storyboard>
                                <ObjectAnimationUsingKeyFrames Duration="0" Storyboard.TargetName="Background_Over" Storyboard.TargetProperty="(UIElement.Visibility)">
                                    <DiscreteObjectKeyFrame KeyTime="0">
                                        <DiscreteObjectKeyFrame.Value>
                                            <Visibility>Visible</Visibility>
                                        </DiscreteObjectKeyFrame.Value>
                                    </DiscreteObjectKeyFrame>
                                </ObjectAnimationUsingKeyFrames>
                            </Storyboard>
                        </VisualState>
                        <VisualState x:Name="Selected">
                            <Storyboard>
                                <ObjectAnimationUsingKeyFrames Duration="0" Storyboard.TargetName="Background_Selected" Storyboard.TargetProperty="(UIElement.Visibility)">
                                    <DiscreteObjectKeyFrame KeyTime="0">
                                        <DiscreteObjectKeyFrame.Value>
                                            <Visibility>Visible</Visibility>
                                        </DiscreteObjectKeyFrame.Value>
                                    </DiscreteObjectKeyFrame>
                                </ObjectAnimationUsingKeyFrames>
                                <ObjectAnimationUsingKeyFrames Storyboard.TargetName="NavigatorIndicatorBackground" Storyboard.TargetProperty="Background">
                                    <DiscreteObjectKeyFrame KeyTime="0:0:0" Value="{StaticResource GridView_RowIndicatorCellBackground_Selected}"/>
                                </ObjectAnimationUsingKeyFrames>
                            </Storyboard>
                        </VisualState>
                    </VisualStateGroup>
                    <VisualStateGroup x:Name="ValueStates">
                        <VisualState x:Name="RowValid"/>
                        <VisualState x:Name="RowInvalid">
                            <Storyboard>
                                <ObjectAnimationUsingKeyFrames Storyboard.TargetName="Background_Invalid" Storyboard.TargetProperty="(UIElement.Visibility)">
                                    <DiscreteObjectKeyFrame KeyTime="0">
                                        <DiscreteObjectKeyFrame.Value>
                                            <Visibility>Visible</Visibility>
                                        </DiscreteObjectKeyFrame.Value>
                                    </DiscreteObjectKeyFrame>
                                </ObjectAnimationUsingKeyFrames>
                                <ObjectAnimationUsingKeyFrames Storyboard.TargetName="ErrorIndicator" Storyboard.TargetProperty="(UIElement.Visibility)">
                                    <DiscreteObjectKeyFrame KeyTime="0">
                                        <DiscreteObjectKeyFrame.Value>
                                            <Visibility>Visible</Visibility>
                                        </DiscreteObjectKeyFrame.Value>
                                    </DiscreteObjectKeyFrame>
                                </ObjectAnimationUsingKeyFrames>
                            </Storyboard>
                        </VisualState>
                    </VisualStateGroup>
                    <VisualStateGroup x:Name="EditStates">
                        <VisualState x:Name="ReadOnlyMode"/>
                        <VisualState x:Name="EditMode">
                            <Storyboard>
                                <ObjectAnimationUsingKeyFrames Storyboard.TargetName="EditIndicator" Storyboard.TargetProperty="Visibility">
                                    <DiscreteObjectKeyFrame KeyTime="0">
                                        <DiscreteObjectKeyFrame.Value>
                                            <Visibility>Visible</Visibility>
                                        </DiscreteObjectKeyFrame.Value>
                                    </DiscreteObjectKeyFrame>
                                </ObjectAnimationUsingKeyFrames>
                            </Storyboard>
                        </VisualState>
                        <VisualState x:Name="InvalidEditMode">
                            <Storyboard>
                                <ObjectAnimationUsingKeyFrames Storyboard.TargetName="Background_Invalid" Storyboard.TargetProperty="(UIElement.Visibility)">
                                    <DiscreteObjectKeyFrame KeyTime="0">
                                        <DiscreteObjectKeyFrame.Value>
                                            <Visibility>Visible</Visibility>
                                        </DiscreteObjectKeyFrame.Value>
                                    </DiscreteObjectKeyFrame>
                                </ObjectAnimationUsingKeyFrames>
                                <ObjectAnimationUsingKeyFrames Storyboard.TargetName="InvalidEditableIndicator" Storyboard.TargetProperty="Visibility">
                                    <DiscreteObjectKeyFrame KeyTime="0">
                                        <DiscreteObjectKeyFrame.Value>
                                            <Visibility>Visible</Visibility>
                                        </DiscreteObjectKeyFrame.Value>
                                    </DiscreteObjectKeyFrame>
                                </ObjectAnimationUsingKeyFrames>
                            </Storyboard>
                        </VisualState>
                    </VisualStateGroup>
                </VisualStateManager.VisualStateGroups>
                <grid:SelectiveScrollingGrid x:Name="grid">
                    <Grid.ColumnDefinitions>
                        <ColumnDefinition Width="Auto"/>
                        <ColumnDefinition Width="Auto"/>
                        <ColumnDefinition Width="Auto"/>
                        <ColumnDefinition Width="*"/>
                    </Grid.ColumnDefinitions>
                    <Grid.RowDefinitions>
                        <RowDefinition Height="*"/>
                        <RowDefinition Height="Auto"/>
                        <RowDefinition Height="Auto"/>
                        <RowDefinition Height="Auto"/>
                    </Grid.RowDefinitions>
                    <Border x:Name="SelectionBackground"
                        Grid.Column="2"
                        Grid.ColumnSpan="2"
                        Background="{TemplateBinding Background}"
                        Margin="{TemplateBinding Margin}"
                        VerticalAlignment="{TemplateBinding VerticalContentAlignment}"
                        Padding="{TemplateBinding Padding}"
                        grid:SelectiveScrollingGrid.SelectiveScrollingClip="True"/>
                    <Border x:Name="Background_Over"
                        Margin="1 1 1 2"
                        BorderThickness="1"
                        CornerRadius="1"
                        BorderBrush="{StaticResource ItemOuterBorder_Over}"
                        Grid.Column="2"
                        Grid.ColumnSpan="2"
                        Visibility="Collapsed"
                        grid:SelectiveScrollingGrid.SelectiveScrollingClip="True">
                        <Border x:Name="BackgroundInner_Over" BorderThickness="1" BorderBrush="{StaticResource ItemInnerBorder_Over}" Background="{StaticResource ItemBackground_Over}"/>
                    </Border>
                    <Border x:Name="Background_Selected"
                        Margin="1 1 1 2"
                        BorderThickness="1"
                        CornerRadius="1"
                        BorderBrush="{StaticResource ItemOuterBorder_Selected}"
                        Grid.Column="2"
                        Grid.ColumnSpan="2"
                        Visibility="Collapsed"
                        grid:SelectiveScrollingGrid.SelectiveScrollingClip="True">
                        <Border BorderThickness="1" BorderBrush="{StaticResource ItemInnerBorder_Selected}" Background="{StaticResource ItemBackground_Selected}"/>
                    </Border>
                    <Border x:Name="Background_Invalid"
                        Margin="1 1 1 2"
                        BorderThickness="1"
                        CornerRadius="1"
                        BorderBrush="{StaticResource ItemOuterBorder_Invalid}"
                        Grid.Column="2"
                        Grid.ColumnSpan="2"
                        Visibility="Collapsed"
                        grid:SelectiveScrollingGrid.SelectiveScrollingClip="True">
                        <Border BorderThickness="1" BorderBrush="{StaticResource ItemInnerBorder_Invalid}" Background="{StaticResource ItemBackground_Invalid}"/>
                    </Border>
                    <controls:GridViewToggleButton
                        Grid.Column="2"
                        x:Name="PART_HierarchyExpandButton"
                        Width="25"
                        grid:SelectiveScrollingGrid.SelectiveScrollingOrientation="Vertical"
                        Opacity="{Binding IsExpandable, RelativeSource={RelativeSource TemplatedParent}, Converter={StaticResource BooleanToOpacityConverter}}"
                        IsHitTestVisible="{Binding IsExpandable, RelativeSource={RelativeSource TemplatedParent}}"
                        Visibility="{Binding HasHierarchy, RelativeSource={RelativeSource TemplatedParent}, Converter={StaticResource BooleanToVisibilityConverter}}"
                        IsChecked="{Binding IsExpanded, Mode=TwoWay, RelativeSource={RelativeSource TemplatedParent}}"
                        IsTabStop="{TemplateBinding IsTabStop}"
                        telerik:StyleManager.Theme="Summer"/>
                    <Border Grid.Column="2" grid:SelectiveScrollingGrid.SelectiveScrollingOrientation="Vertical" Visibility="{Binding HasHierarchy, RelativeSource={RelativeSource TemplatedParent}, Converter={StaticResource BooleanToVisibilityConverter}}"/>
                    <grid:DataCellsPresenter Grid.Column="3" telerik:StyleManager.Theme="Summer" x:Name="PART_DataCellsPresenter"/>
                    <Border x:Name="PART_RowBorder"
                        BorderBrush="{TemplateBinding HorizontalGridLinesBrush}"
                        BorderThickness="{Binding HorizontalGridLinesWidth, RelativeSource={RelativeSource TemplatedParent}, Converter={StaticResource GridLineWidthToThicknessConverter}, ConverterParameter=Bottom}"
                        Grid.ColumnSpan="4"
                        Grid.Column="1"
                        Grid.RowSpan="4"
                        VerticalAlignment="Bottom"
                        grid:SelectiveScrollingGrid.SelectiveScrollingClip="True"/>
                    <Border
                        Background="{StaticResource GridView_HierarchyBackground}"
                        grid:SelectiveScrollingGrid.SelectiveScrollingClip="True"
                        Grid.Column="2"
                        Grid.Row="2"
                        Grid.ColumnSpan="2"
                        Padding="6"
                        BorderBrush="{StaticResource ControlOuterBorder}"
                        BorderThickness="0,1"
                        Visibility="{Binding IsExpanded, RelativeSource={RelativeSource TemplatedParent}, Converter={StaticResource BooleanToVisibilityConverter}}">
                        <ContentPresenter x:Name="PART_HierarchyChildPresenter" grid:SelectiveScrollingGrid.SelectiveScrollingClip="True"/>
                    </Border>
                    <grid:DetailsPresenter x:Name="PART_DetailsPresenter"
                        grid:SelectiveScrollingGrid.SelectiveScrollingClip="True"
                        Grid.Column="2"
                        Grid.ColumnSpan="2"
                        Grid.Row="1"
                        DetailsProvider="{TemplateBinding DetailsProvider}"
                        telerik:StyleManager.Theme="Summer"/>
                    <grid:IndentPresenter x:Name="PART_IndentPresenter"
                        telerik:StyleManager.Theme="Summer"
                        IndentLevel="{TemplateBinding IndentLevel}"
                        Grid.Column="1"
                        Grid.RowSpan="4"
                        grid:SelectiveScrollingGrid.SelectiveScrollingOrientation="Vertical"/>
                    <Border x:Name="PART_IndicatorPresenter"
                        Width="25"
                        VerticalAlignment="Stretch"
                        Grid.Column="0"
                        Visibility="{TemplateBinding RowIndicatorVisibility}"
                        grid:SelectiveScrollingGrid.SelectiveScrollingOrientation="Vertical"
                        Grid.RowSpan="3"
                        BorderBrush="{StaticResource ControlOuterBorder}"
                        BorderThickness="0 0 1 1">
                        <Border x:Name="NavigatorIndicatorBackground"
                            Background="{StaticResource GridView_RowIndicatorCellBackground}"
                            BorderBrush="{StaticResource ControlInnerBorder}"
                            BorderThickness="1">
                            <Grid>
                                <Grid x:Name="NavigatorIndicator" HorizontalAlignment="Center" VerticalAlignment="Center" Width="11" Height="11" Visibility="Collapsed">
                                    <Path
                                        Stretch="Fill"
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                                        HorizontalAlignment="Center"
                                        VerticalAlignment="Center"
                                        Width="8"
                                        Height="8"
                                        Fill="{StaticResource GridView_NavigatorIndicatorBackground}"/>
                                </Grid>
                                <Grid x:Name="EditIndicator" HorizontalAlignment="Center" VerticalAlignment="Center" Width="16" Height="10" Visibility="Collapsed">
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                                <Grid x:Name="InvalidEditableIndicator" HorizontalAlignment="Center" VerticalAlignment="Center" Width="16" Height="10" Visibility="Collapsed">
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                                <Grid x:Name="ErrorIndicator" HorizontalAlignment="Center" VerticalAlignment="Center" Width="16" Height="16" Visibility="Collapsed">
                                    <Path
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                                        Stretch="Fill"
                                        Margin="7,3"
                                        Data="M1.4901161E-07,8 L1.0000001,8 2.0000002,8 2.0000002,9 2.0000002,10 1.0000003,10 1.0000003,9 1.0000001,10 1.4901161E-07,10 1.4901161E-07,9 z M1.4901161E-07,0 L1.0000001,0 2.0000002,0 2.0000002,1 2.0000002,2 2.0000002,3 2.0000002,4.0000001 2.0000002,5 2.0000002,5.9999999 2.0000002,7 1.0000001,7 1.4901161E-07,7 1.4901161E-07,5.9999999 1.4901161E-07,5 1.4901161E-07,4.0000001 1.4901161E-07,3 1.4901161E-07,2 0,1 z"/>
                                    <Path Fill="{StaticResource GridView_ErrorIndicatorBackground3}" Stretch="Fill" Data="M4,15 L5,15 6,15 7,15 8,15 9,15 10,15 11,15 12,15 12,16 11,16 10,16 9,16 8,16 7,16 6,16 5,16 4,16 z M12,14 L13,14 13,15 12,15 z M3,14 L4,14 4,15 3,15 z M13,13 L14,13 14,14 13,14 z M2,13 L3,13 3,14 2,14 z M14,12 L15,12 15,13 14,13 z M1,12 L2,12 2,13 1,13 z M7,11 L7,12 7,13 8,13 9,13 9,12 9,11 8,11 z M15,4 L16,4 16,5 16,6 16,7 16,8 16,9 16,10 16,11 16,12 15,12 15,11 15,10 15,9 15,8 15,7 15,6 15,5 z M0,4 L1,4 1,5 1,6 1,7 1,8 1,9 1,10 1,11 1,12 0,12 0,11 0,10 0,9 0,8 0,7 0,6 0,5 z M14,3 L15,3 15,4 14,4 z M7,3 L7,4 7,5 7,6 7,7 7,8 7,9 7,10 8,10 9,10 9,9 9,8 9,7 9,6 9,5 9,4 9,3 8,3 z M1,3 L2,3 2,4 1,4 z M13,2 L14,2 14,3 13,3 z M4,2 L5,2 6,2 7,2 8,2 9,2 10,2 11,2 12,2 12,3 13,3 13,4 14,4 14,5 14,6 14,7 14,8 14,9 14,10 14,11 14,12 13,12 13,13 12,13 12,14 11,14 10,14 9,14 8,14 7,14 6,14 5,14 4,14 4,13 3,13 3,12 2,12 2,11 2,10 2,9 2,8 2,7 2,6 2,5 2,4 3,4 3,3 4,3 z M2,2 L3,2 3,3 2,3 z M12,1 L13,1 13,2 12,2 z M3,1 L4,1 4,2 3,2 z M4,0 L5,0 6,0 7,0 8,0 9,0 10,0 11,0 12,0 12,1 11,1 10,1 9,1 8,1 7,1 6,1 5,1 4,1 z"/>
                                    <ToolTipService.ToolTip>
                                        <ToolTip x:Name="validationTooltip" Placement="Bottom" Content="{TemplateBinding Errors}" Template="{StaticResource GridViewRow_ValidationToolTipTemplate}"/>
                                    </ToolTipService.ToolTip>
                                </Grid>
                                <Border x:Name="PART_RowResizer" Background="Transparent" Height="2" VerticalAlignment="Bottom" Cursor="SizeNS"/>
                            </Grid>
                        </Border>
                    </Border>
                </grid:SelectiveScrollingGrid>
            </Border>
        </ControlTemplate>

        <Style x:Key="MyRowStyle" TargetType="{x:Type grid:GridViewRow}">
            <Setter Property="Template" Value="{StaticResource GridViewRowTemplate}"/>
        </Style>
    </Window.Resources>
    <Grid >
        <telerik:RadGridView AutoGenerateColumns="True" Margin="20" RowStyle="{StaticResource MyRowStyle}"
                    CanUserDeleteRows="True"
                    CanUserInsertRows="True"
                    ItemsSource="{Binding MyList,
                                          Mode=TwoWay}"
                    ShowInsertRow="True"
                  />
    </Grid>

</Window>

using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.ComponentModel.DataAnnotations;
using System.Globalization;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
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.MaskedInput;

namespace WpfApplication6
{
    /// <summary>
    /// Interaction logic for MainWindow.xaml
    /// </summary>
    public partial class MainWindow : Window
    {
        private List<Person> _myList;
        public List<Person> MyList
        {
            get { return _myList; }
            set { _myList = value; }
        }

        public MainWindow()
        {
            MyList = new List<Person>();
            MyList.Add(new Person() { ID = 9, Name = "Rachel", Amount = 55 });
            InitializeComponent();
            This.DataContext = this;
        }

    }
    public class Person
    {
       
        private int? _iD;
        [DisplayName("ID")]
        public int? ID
        {
            get { return _iD; }
            set { _iD = value; }
        }


        [DisplayName("Name")]
        public string Name { get; set; }

        [DisplayName("Amount")]
        public int Amount { get; set; }
    }

  
}

Hello,
I bugfixing an application where the following issue happens:
There is a RadViewGrid WPF control implemented. When the filter icon on a column is clicked opens a popup filter window. If I click on any of the filtering operators or the logical operators (I want to change them) the popup filter window immediately closes. I can't open the operator combobox to select any other than the default.
When I click the filter icon on the column again, so opening the popup window again, then I see, that the previously selected operator is stay in selected state (I mean it highlighted). It seems if it has been stucked.
The data which populate the RadViewGrid is coming from a test class (in-memory data) exactly as it is written in your documentation:
http://docs.telerik.com/devtools/wpf/controls/radgridview/populating-with-data/in-memory-date

I made a brand new WPF project to test the filter icon. The solution has only a RadViewGrid control, and I populated it with in-memory data. In this test project the filter window works perfectly, I can open the filtering or logical operator combobox, and select another operator. This means, the Telerik assembIies I use are ok.

Unfortunately I stuck with this issue and need help. Did you expereince any similar issue? What can prevent the filtering/logical operator comboboxes to open and force the filtering popup window to close?

Thank you for any help in advance!
Attila

Hi,

I'm using VS2013 and Telerik V2014.3.1202.40. If I enter a text in the control and I click somewhere in the text, the carret position changed but the SelectionChanged event are not triggered.

Thank's
Alain

I have a very large collection of Items Which needs to be displayed On MAP.

I am using a VisualizationLayer with clustering Enabled . Could you please help me out to Load this data in an async Way . So that I don't have to wait for all the Items to be loaded to see the MAP and My application is Frozen till then .


Regards
Vinutha

Hi,

in our production app my team noticed strange behavior of RadChart control. Points on LineSeries wasn't on their place after zooming. First we thought, that was problem with our XAML styles or data provided via ObservableCollection, but everything was ok. Then we try to reproduce the bug on clean new WPF project and we did it. When you have more then one LineSeries (when you have one that bug exists too, but hard to notice, becouse only few or exacly one point can have wrong position) on your Chart and try to zoom, then points change their position to wrong, like not rerendering at all. I attached screenshot and solution that reproducing this bug. Can you try yourself and confirm that is a bug in your RadChart control?

There's solution: http://www27.zippyshare.com/v/oJX0ymTg/file.html

Greetings,
Paul.

Hello,

I have this little question. I know how to apply sum function on all rows in GridView.

My question is: it is possible to apply sum function only on selected rows in GridView??

Thanks Petr.

I am using HeatMap for my application and ı copied/ paste demos example to My application.But ı couldnt fix QuickStart part.

Best Regards To Team ...

Hi,

I'm creating a RadCartesianChart with a ScatterLineSeries from the code behind. I was hoping to have each datapoint in a series represented by a random shape (like a triangle). Is this possible? I can't work out how to do it.

Thanks,

Hi,

I'm trying to recreate an existing polar chart. The existing chart shows curved lines between each datapoint and the default for RadPolarChart is straight lines. I've attached examples to explain.

Is it possible to have curved lines?

Hi...I'm Jimmy . New VB.Net 2008 programmer. Developing POS software.
I had a question , can anybody help me ? Should i use RAD for WinForm
or RAD for WPF.Will the WPF more powerful than Winform the near future?

Rgds
Jimmy