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System.NullReferenceException

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RichTextBox

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Robert asked on 01 Feb 2012, 01:28 AM

My company over the weekend converted to Active Directory from eDirectory, and pushed out Silverlight 5 (just listing the 2 major events on my box lately).

Friday my project was working fine and had been for a couple of months, as of Monday anytime I open a View that contains a RichTextBox my VS 2010 design window blows up with the following error.

Note: I can compile and deploy the app and everything is fine on the deployed version, just my designer is non-functional. I've uninstalled and reinstalled my telerik silverlight controls, but still get the same error.

Any Ideas?
Thanks
Robert

Error List:
Error 4 [Line: 0 Position: 0] C:\Projects\Contracts\src\ContractSystem\ContractSystem\Views\ServicesContractDetailView.xaml 600 29 ContractSystem

In the design window:

System.NullReferenceException
Object reference not set to an instance of an object.
at Telerik.Windows.Documents.UI.DocumentWebLayoutPresenter.ClearPresenterUI() in c:\TB\102\WPF_Scrum\Release_SL\Sources\Development\Documents\UI\DocumentWebLayoutPresenter.cs:line 295
at Telerik.Windows.Documents.UI.DocumentWebLayoutPresenter.DoOnDocumentChanging() in c:\TB\102\WPF_Scrum\Release_SL\Sources\Development\Documents\UI\DocumentWebLayoutPresenter.cs:line 387
at Telerik.Windows.Controls.RadRichTextBox.set_Document(RadDocument value) in c:\TB\102\WPF_Scrum\Release_SL\Sources\Development\Documents\UI\RadRichTextBox.cs:line 981
at Telerik.Windows.Documents.FormatProviders.DataProviderBase.UpdateDocument() in c:\TB\102\WPF_Scrum\Release_SL\Sources\Development\Documents\FormatProviders\DataProviderBase.cs:line 214
at Telerik.Windows.Documents.FormatProviders.DataProviderBase.RichTextBoxChangedCallback(DependencyObject sender, DependencyPropertyChangedEventArgs e) in c:\TB\102\WPF_Scrum\Release_SL\Sources\Development\Documents\FormatProviders\DataProviderBase.cs:line 89
at Telerik.Windows.PropertyMetadata.PropertyChangeHook.OnPropertyChanged(DependencyObject d, DependencyPropertyChangedEventArgs e) in c:\TB\102\WPF_Scrum\Release_SL\Sources\Development\Core\Controls\Common\System.Windows\PropertyMetadata.cs:line 262
at System.Windows.DependencyObject.RaisePropertyChangeNotifications(DependencyProperty dp, Object oldValue, Object newValue)
at System.Windows.DependencyObject.UpdateEffectiveValue(DependencyProperty property, EffectiveValueEntry oldEntry, EffectiveValueEntry& newEntry, ValueOperation operation)
at System.Windows.DependencyObject.RefreshExpression(DependencyProperty dp)
at System.Windows.Data.BindingExpression.SendDataToTarget()
at System.Windows.Data.BindingExpression.SourceAcquired()
at System.Windows.Data.BindingExpression.PerformTargetLoaded()
at System.Windows.Data.BindingExpression.TargetLoaded(Object o, RoutedEventArgs e)
at MS.Internal.CoreInvokeHandler.InvokeEventHandler(UInt32 typeIndex, Delegate handlerDelegate, Object sender, Object args)
at MS.Internal.JoltHelper.FireEvent(IntPtr unmanagedObj, IntPtr unmanagedObjArgs, Int32 argsTypeIndex, Int32 actualArgsTypeIndex, String eventName, UInt32 flags)

Microsoft.Windows.Design.Platform.InvalidDesignerUpdateException
An unhandled exception was encountered while trying to render the current silverlight project on the design surface. To diagnose this failure, please try to run the project in a regular browser using the silverlight developer runtime.

<controls:ChildWindow x:Class="ContractSystem.Views.ServicesContractDetailView"

xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"

xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"

xmlns:controls="clr-namespace:System.Windows.Controls;assembly=System.Windows.Controls"

xmlns:converters="clr-namespace:ContractSystem"

xmlns:d="http://schemas.microsoft.com/expression/blend/2008"

xmlns:ei="http://schemas.microsoft.com/expression/2010/interactions"

xmlns:i="http://schemas.microsoft.com/expression/2010/interactivity"

xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"

xmlns:rtf="clr-namespace:Telerik.Windows.Documents.FormatProviders.Rtf;assembly=Telerik.Windows.Documents.FormatProviders.Rtf"

xmlns:sdk="http://schemas.microsoft.com/winfx/2006/xaml/presentation/sdk"

xmlns:telerik="http://schemas.telerik.com/2008/xaml/presentation"

xmlns:toolkit="http://schemas.microsoft.com/winfx/2006/xaml/presentation/toolkit"

Title="{Binding Path=Model.Type}"

Width="800"

Height="auto"

d:DesignHeight="1300"

d:DesignWidth="800"

FontFamily="Arial"

FontSize="12"

mc:Ignorable="d">

<controls:ChildWindow.Resources>

<converters:BoolToVisibilityConverter x:Key="BoolToVisibilityConverter" />

<DataTemplate x:Key="DeptTemplate">

<StackPanel Orientation="Horizontal">

<TextBlock Foreground="Red" Text="{Binding Path=Dept}" />

<TextBlock Text="-" />

<TextBlock Text="{Binding Path=DeptName}" />

</StackPanel>

</DataTemplate>

</controls:ChildWindow.Resources>

<ScrollViewer Background="Transparent" HorizontalScrollBarVisibility="Auto">

<StackPanel Orientation="Vertical">

<HyperlinkButton Width="175"

HorizontalAlignment="Right"

Content="Contract Example"

FontSize="12"

FontWeight="Bold"

NavigateUri="{Binding Source={StaticResource ApplicationResources},

Path=Strings.ContractExampleLink}"

TargetName="_new" />

<Border BorderBrush="LightGray"

BorderThickness="2"

CornerRadius="10"

Padding="10">

<Grid x:Name="pscGrid"

HorizontalAlignment="Center"

ShowGridLines="False">

<Grid.RowDefinitions>

<RowDefinition Height="Auto" />

<RowDefinition Height="29" />

<RowDefinition Height="29" />

<RowDefinition Height="15" />

<RowDefinition Height="29" />

<RowDefinition Height="15" />

<RowDefinition Height="29" />

<RowDefinition Height="29" />

<RowDefinition Height="auto" />

<RowDefinition Height="auto" />

<RowDefinition Height="39" />

</Grid.RowDefinitions>

<Grid.ColumnDefinitions>

<ColumnDefinition Width="175" />

<ColumnDefinition Width="575" />

</Grid.ColumnDefinitions>

<StackPanel Grid.Row="0" Grid.ColumnSpan="2">

<Grid Width="746" Margin="0,0,35,0">

<Grid.ColumnDefinitions>

<ColumnDefinition Width="auto" />

<ColumnDefinition Width="350" />

<ColumnDefinition Width="190" />

</Grid.ColumnDefinitions>

<Image Grid.Column="0"

Width="auto"

Margin="0,0,2,0"

Source="/ContractSystem;component/Assets/Jackson_County_Seal.PNG" />

<StackPanel Grid.Column="1"

HorizontalAlignment="Center"

VerticalAlignment="Center"

Orientation="Vertical">

<TextBlock Margin="5,0,5,0"

HorizontalAlignment="Center"

VerticalAlignment="Center"

FontSize="22">

Personnal Services

</TextBlock>

</StackPanel>

<StackPanel Grid.Column="2"

HorizontalAlignment="Right"

VerticalAlignment="Center"

Orientation="Horizontal">

<StackPanel Grid.Column="2"

HorizontalAlignment="Stretch"

VerticalAlignment="Center"

Orientation="Vertical">

<sdk:Label Margin="5,0,0,0" Content="{Binding Source={StaticResource ApplicationResources}, Path=PscLabels.Department}" />

<telerik:RadComboBox Grid.Row="0"

Grid.Column="2"

Width="170"

HorizontalAlignment="left"

CanAutocompleteSelectItems="True"

CanKeyboardNavigationSelectItems="True"

IsDropDownOpen="False"

IsReadOnly="True"

ItemsSource="{Binding Path=Departments}"

ItemTemplate="{StaticResource DeptTemplate}"

SelectedValue="{Binding Path=Model.Department,

Mode=TwoWay}"

SelectedValuePath="Dept" />

</StackPanel>

<sdk:DescriptionViewer Margin="5,0,0,0" Description="{Binding Source={StaticResource ApplicationResources}, Path=PscTooltips.Department}" />

</StackPanel>

</Grid>

</StackPanel>

<StackPanel Grid.Row="1"

Grid.Column="1"

Margin="0,0,40,0"

HorizontalAlignment="Right"

Orientation="Horizontal">

<sdk:Label Margin="0,0,5,0" Content="{Binding Source={StaticResource ApplicationResources}, Path=PscLabels.Custom}" />

<CheckBox Grid.Row="1"

Grid.Column="1"

VerticalAlignment="Center"

Content=""

IsChecked="{Binding Path=Model.Custom,

Mode=TwoWay}"

IsThreeState="False" />

<sdk:DescriptionViewer Description="{Binding Source={StaticResource ApplicationResources}, Path=PscTooltips.Custom}" />

</StackPanel>

<!--

<StackPanel Grid.Row="1"

Grid.Column="1"

HorizontalAlignment="Right"

Orientation="Horizontal">

<sdk:Label Content="{Binding Source={StaticResource ApplicationResources}, Path=PscLabels.Department}" />

<telerik:RadComboBox Grid.Column="1"

Width="175"

HorizontalAlignment="left"

CanAutocompleteSelectItems="True"

CanKeyboardNavigationSelectItems="True"

IsDropDownOpen="False"

IsReadOnly="True"

ItemsSource="{Binding Path=Departments}"

ItemTemplate="{StaticResource DeptTemplate}"

SelectedValue="{Binding Path=Model.Department,

Mode=TwoWay}"

SelectedValuePath="Dept" />

<sdk:DescriptionViewer Description="{Binding Source={StaticResource ApplicationResources}, Path=PscTooltips.Department}" />

</StackPanel>

-->

<sdk:Label Grid.Row="2"

Grid.Column="0"

Grid.ColumnSpan="2"

HorizontalAlignment="Center"

Content="Contractor's Information"

FontWeight="Bold" />

<sdk:Label Grid.Row="3"

Grid.Column="0"

Content="{Binding Source={StaticResource ApplicationResources},

Path=PscLabels.Cname}" />

<TextBox Grid.Row="3"

Grid.Column="1"

Width="565"

HorizontalAlignment="Left"

VerticalAlignment="Center"

MaxLength="50"

Style="{StaticResource TextBoxStyle}"

Text="{Binding Path=Model.CName,

Mode=TwoWay}" />

<sdk:Label Grid.Row="4"

Grid.Column="0"

Content="{Binding Source={StaticResource ApplicationResources},

Path=PscLabels.AddressStreet}" />

<TextBox Grid.Row="4"

Grid.Column="1"

Width="565"

HorizontalAlignment="Left"

VerticalAlignment="Center"

MaxLength="50"

Style="{StaticResource TextBoxStyle}"

Text="{Binding Path=Model.AddressStreet,

Mode=TwoWay}" />

<sdk:Label Grid.Row="5"

Grid.Column="0"

Content="{Binding Source={StaticResource ApplicationResources},

Path=PscLabels.City}" />

<TextBox Grid.Row="5"

Grid.Column="1"

Width="565"

HorizontalAlignment="Left"

VerticalAlignment="Center"

MaxLength="50"

Style="{StaticResource TextBoxStyle}"

Text="{Binding Path=Model.City,

Mode=TwoWay}" />

<sdk:Label Grid.Row="6"

Grid.Column="0"

Content="{Binding Source={StaticResource ApplicationResources},

Path=PscLabels.State}" />

<!--  <ComboBox Grid.Column="1" Grid.Row="5" ItemsSource="{Binding Path=States}" DisplayMemberPath="ShortState" SelectedValue="{Binding Path=Model.State, Mode=TwoWay}" SelectedValuePath="ShortState" HorizontalAlignment="left" Width="175" />  -->

<telerik:RadComboBox Grid.Row="6"

Grid.Column="1"

Width="175"

Height="25"

HorizontalAlignment="left"

CanAutocompleteSelectItems="True"

CanKeyboardNavigationSelectItems="True"

DisplayMemberPath="ShortState"

IsDropDownOpen="False"

IsReadOnly="True"

ItemsSource="{Binding Path=States}"

SelectedValue="{Binding Path=Model.State,

Mode=TwoWay}"

SelectedValuePath="ShortState" />

<sdk:Label Grid.Row="7"

Grid.Column="0"

Content="{Binding Source={StaticResource ApplicationResources},

Path=PscLabels.Zipcode}" />

<TextBox Grid.Row="7"

Grid.Column="1"

Width="175"

Margin="0,4"

HorizontalAlignment="Left"

VerticalAlignment="Center"

MaxLength="20"

Style="{StaticResource TextBoxStyle}"

Text="{Binding Path=Model.Zipcode,

Mode=TwoWay}" />

<StackPanel Grid.Row="8"

Grid.Column="0"

Orientation="Horizontal">

<sdk:Label Content="Citizenship" />

<sdk:DescriptionViewer Margin="5,0,0,0" Description="{Binding Source={StaticResource ApplicationResources}, Path=PscTooltips.Citizenship}" />

</StackPanel>

<TextBox Grid.Row="8"

Grid.Column="1"

Width="565"

HorizontalAlignment="Left"

VerticalAlignment="Center"

MaxLength="50"

Style="{StaticResource TextBoxStyle}"

Text="{Binding Path=Model.Citizen,

Mode=TwoWay}" />

<StackPanel Grid.Row="9"

Grid.Column="0"

Orientation="Horizontal">

<sdk:Label Content="{Binding Source={StaticResource ApplicationResources}, Path=PscLabels.Alien}" />

<sdk:DescriptionViewer Margin="5,0,0,0" Description="{Binding Source={StaticResource ApplicationResources}, Path=PscTooltips.Alien}" />

</StackPanel>

<CheckBox Grid.Row="9"

Grid.Column="1"

VerticalAlignment="Center"

Content=""

IsChecked="{Binding Path=Model.Alien,

Mode=TwoWay}"

IsThreeState="False" />

<StackPanel Grid.Row="11"

Grid.Column="1"

Grid.ColumnSpan="2"

Orientation="Horizontal">

<sdk:Label Content="{Binding Source={StaticResource ApplicationResources}, Path=PscLabels.SSN}" />

<!--  <sdk:DescriptionViewer Description="{Binding Source={StaticResource ApplicationResources}, Path=PscTooltips.SSN}"/>  -->

<TextBox Width="150"

Margin="5,0,0,0"

VerticalAlignment="Center"

MaxLength="50"

Style="{StaticResource TextBoxStyle}"

Text="{Binding Path=Model.SSN,

Mode=TwoWay}" />

<sdk:Label Margin="5,0,0,0"

Content="OR"

FontSize="12"

FontWeight="Bold"

Padding="5" />

<sdk:Label Content="{Binding Source={StaticResource ApplicationResources}, Path=PscLabels.TaxID}" />

<!--  <sdk:DescriptionViewer Description="{Binding Source={StaticResource ApplicationResources}, Path=PscTooltips.TaxID}"/>  -->

<TextBox Width="150"

Margin="5,0,0,0"

VerticalAlignment="Center"

MaxLength="50"

Style="{StaticResource TextBoxStyle}"

Text="{Binding Path=Model.TaxID,

Mode=TwoWay}" />

</StackPanel>

<StackPanel Grid.Row="12"

Grid.Column="0"

Orientation="Horizontal">

<sdk:Label Content="{Binding Source={StaticResource ApplicationResources}, Path=PscLabels.BusinessLic}" />

<!--  <sdk:DescriptionViewer Description="{Binding Source={StaticResource ApplicationResources}, Path=PscTooltips.BusinessLic}"/>  -->

</StackPanel>

<TextBox Grid.Row="12"

Grid.Column="1"

Width="565"

HorizontalAlignment="Left"

VerticalAlignment="Center"

MaxLength="50"

Style="{StaticResource TextBoxStyle}"

Text="{Binding Path=Model.BusinessLic,

Mode=TwoWay}" />

<StackPanel Grid.Row="14"

Grid.Column="0"

Orientation="Horizontal">

<sdk:Label Content="{Binding Source={StaticResource ApplicationResources}, Path=PscLabels.EffectiveDate}" />

<sdk:DescriptionViewer Margin="5,0,0,0" Description="{Binding Source={StaticResource ApplicationResources}, Path=PscTooltips.EffectiveDate}" />

</StackPanel>

<telerik:RadDatePicker Grid.Row="14"

Grid.Column="1"

Width="175"

Height="25"

HorizontalAlignment="left"

SelectedDate="{Binding Path=Model.EffectiveDate,

Mode=TwoWay}"

Style="{StaticResource RadDatePickerStyle}" />

<StackPanel Grid.Row="15"

Grid.Column="0"

Orientation="Horizontal">

<sdk:Label Content="{Binding Source={StaticResource ApplicationResources}, Path=PscLabels.EndContract}" />

<sdk:DescriptionViewer Margin="5,0,0,0" Description="{Binding Source={StaticResource ApplicationResources}, Path=PscTooltips.EndContract}" />

</StackPanel>

<telerik:RadDatePicker Grid.Row="15"

Grid.Column="1"

Width="175"

Height="25"

HorizontalAlignment="left"

SelectedDate="{Binding Path=Model.EndContract,

Mode=TwoWay}"

Style="{StaticResource RadDatePickerStyle}" />

<StackPanel Grid.Row="16"

Grid.Column="0"

Orientation="Horizontal">

<sdk:Label Content="{Binding Source={StaticResource ApplicationResources}, Path=PscLabels.ScopeOfWork}" />

<sdk:DescriptionViewer Margin="5,0,0,0" Description="{Binding Source={StaticResource ApplicationResources}, Path=PscTooltips.ScopeOfWork}" />

</StackPanel>

<!--  <TextBox Grid.Column="1" Grid.Row="15" Text="{Binding Path=Model.ScopeOfWork, Mode=TwoWay}" HorizontalAlignment="Stretch" MaxLength="5000" VerticalAlignment="Top" Height="100" VerticalScrollBarVisibility="Auto" TextWrapping="Wrap" />  -->

<rtf:RtfDataProvider RichTextBox="{Binding ElementName=rtbScopeOfWork}"

Rtf="{Binding Model.ScopeOfWork,

Mode=TwoWay}"

SetupDocument="RtfDataProvider_SetupDocument" />

<telerik:RadRichTextBox x:Name="rtbScopeOfWork"

Grid.Row="16"

Grid.Column="1"

Width="550"

Height="175"

Margin="0,5"

HorizontalAlignment="Left"

VerticalAlignment="Top"

DocumentInheritsDefaultStyleSettings="True"

FontSize="12"

HorizontalScrollBarVisibility="Hidden"

IsContextMenuEnabled="True"

IsSelectionMiniToolBarEnabled="True"

IsSpellCheckingEnabled="False"

Style="{StaticResource RadRichTextBoxStyle}"

VerticalScrollBarVisibility="Auto" />

<sdk:Label Grid.Row="17"

Grid.Column="0"

Content="{Binding Source={StaticResource ApplicationResources},

Path=PscLabels.MaximumSum}" />

<TextBox Grid.Row="17"

Grid.Column="1"

Width="550"

Height="175"

Margin="0,5"

HorizontalAlignment="Left"

VerticalAlignment="Center"

FontSize="12"

MaxLength="50"

Style="{StaticResource TextBoxStyle}"

Text="{Binding Path=Model.MaximumSum,

Mode=TwoWay}" />

<StackPanel Grid.Row="18"

Grid.Column="1"

Grid.ColumnSpan="2"

Orientation="Vertical">

<HyperlinkButton HorizontalAlignment="Center"

Content="Insurance Guidlines"

FontSize="12"

NavigateUri="http://10.20.10.117/docs/InsuranceGuidelines.pdf"

Padding="2"

TargetName="_new" />

<StackPanel HorizontalAlignment="Center"

Background="LightGray"

Orientation="Horizontal">

<Border Width="200"

BorderBrush="Black"

BorderThickness="1"

CornerRadius="5"

Padding="5">

<StackPanel Orientation="Vertical">

<sdk:DescriptionViewer Width="Auto" Description="{Binding Source={StaticResource ApplicationResources}, Path=PscTooltips.ProLiability}" />

<sdk:Label Content="{Binding Source={StaticResource ApplicationResources}, Path=PscLabels.ProLiability}" />

<ListBox x:Name="ProLiability"

DisplayMemberPath="Name"

ItemsSource="{Binding Path=ProfLiabilities}"

SelectedValue="{Binding Path=Model.ProLiability,

Mode=TwoWay}"

SelectedValuePath="Name" />

</StackPanel>

</Border>

<Border Width="200"

BorderBrush="Black"

BorderThickness="1"

CornerRadius="5"

Padding="5">

<StackPanel Orientation="Vertical">

<sdk:DescriptionViewer Description="{Binding Source={StaticResource ApplicationResources}, Path=PscTooltips.AutoLiability}" />

<sdk:Label Content="{Binding Source={StaticResource ApplicationResources}, Path=PscLabels.AutoLiability}" />

<ListBox x:Name="AutoLiability"

DisplayMemberPath="Name"

ItemsSource="{Binding Path=AutoLiabilities}"

SelectedValue="{Binding Path=Model.AutoLiability,

Mode=TwoWay}"

SelectedValuePath="Name" />

</StackPanel>

</Border>

</StackPanel>

<StackPanel HorizontalAlignment="Center"

Background="LightGray"

Orientation="Horizontal">

<Border Width="200"

BorderBrush="Black"

BorderThickness="1"

CornerRadius="5"

Padding="5">

<StackPanel Orientation="Vertical">

<sdk:DescriptionViewer Description="{Binding Source={StaticResource ApplicationResources}, Path=PscTooltips.GenLiability}" />

<sdk:Label Content="{Binding Source={StaticResource ApplicationResources}, Path=PscLabels.GenLiability}" />

<ListBox x:Name="GeneralLiability"

DisplayMemberPath="Name"

ItemsSource="{Binding Path=GeneralLiabilities}"

SelectedValue="{Binding Path=Model.GenLiability,

Mode=TwoWay}"

SelectedValuePath="Name" />

</StackPanel>

</Border>

<Border Width="200"

BorderBrush="Black"

BorderThickness="1"

CornerRadius="5"

Padding="5">

<StackPanel x:Name="spUmbrella" Orientation="Vertical">

<sdk:DescriptionViewer Description="{Binding Source={StaticResource ApplicationResources}, Path=PscTooltips.UmbrellaLiability}" />

<sdk:Label Content="{Binding Source={StaticResource ApplicationResources}, Path=PscLabels.UmbrellaLiability}" />

<ListBox x:Name="UmbrellaLiability"

DisplayMemberPath="Name"

ItemsSource="{Binding Path=UmbrellaLiabilities}"

SelectedValue="{Binding Path=Model.UmbrellaLiability,

Mode=TwoWay}"

SelectedValuePath="Name" />

</StackPanel>

</Border>

</StackPanel>

<StackPanel Grid.Row="19"

Grid.Column="0"

Grid.ColumnSpan="2"

Width="550"

HorizontalAlignment="Left"

Orientation="Vertical">

<StackPanel Orientation="Horizontal">

<CheckBox x:Name="chkExhibitB"

Height="25"

Content="{Binding Source={StaticResource ApplicationResources},

Path=PscLabels.ExhibitB}"

IsChecked="{Binding Path=Model.ExhibitB,

Mode=TwoWay}"

IsThreeState="False"

TabIndex="19" />

<sdk:DescriptionViewer Description="{Binding Source={StaticResource ApplicationResources}, Path=PscTooltips.ExhibitB}" />

</StackPanel>

<StackPanel Grid.Row="20"

Grid.Column="0"

Grid.ColumnSpan="2"

Width="550"

Orientation="Vertical"

Visibility="{Binding ElementName=chkExhibitB,

Path=IsChecked,

Converter={StaticResource BoolToVisibilityConverter},

FallbackValue=Collapsed}">

<StackPanel Orientation="Horizontal">

<CheckBox x:Name="chkSubcontracts"

Height="25"

Content="{Binding Source={StaticResource ApplicationResources},

Path=PscLabels.Subcontracts}"

IsChecked="{Binding Path=Model.Subcontracts,

Mode=TwoWay}"

IsThreeState="False"

TabIndex="21" />

<sdk:DescriptionViewer Description="{Binding Source={StaticResource ApplicationResources}, Path=PscTooltips.Subcontracts}" />

</StackPanel>

<StackPanel HorizontalAlignment="Left"

Orientation="Vertical"

Visibility="{Binding ElementName=chkSubcontracts,

Path=IsChecked,

Converter={StaticResource BoolToVisibilityConverter},

FallbackValue=Collapsed}">

<StackPanel Orientation="Horizontal">

<sdk:Label Width="150" Content="{Binding Source={StaticResource ApplicationResources}, Path=PscLabels.FirstExhibit}" />

<TextBox x:Name="txtExhibit1"

Width="200"

Style="{StaticResource TextBoxStyle}"

Text="{Binding Path=Model.FirstExhibit,

Mode=TwoWay}"

Visibility="Visible" />

<sdk:DescriptionViewer Description="{Binding Source={StaticResource ApplicationResources}, Path=PscTooltips.FirstExhibit}" />

</StackPanel>

<StackPanel Orientation="Horizontal">

<sdk:Label Width="150" Content="{Binding Source={StaticResource ApplicationResources}, Path=PscLabels.SecondExhibit}" />

<TextBox x:Name="txtExhibit2"

Width="200"

Style="{StaticResource TextBoxStyle}"

Text="{Binding Path=Model.SecondExhibit,

Mode=TwoWay}"

Visibility="Visible" />

<sdk:DescriptionViewer Description="{Binding Source={StaticResource ApplicationResources}, Path=PscTooltips.SecondExhibit}" />

</StackPanel>

<CheckBox x:Name="chkTravel"

Height="25"

Content="{Binding Source={StaticResource ApplicationResources},

Path=PscLabels.Travel}"

IsChecked="{Binding Path=Model.Travel,

Mode=TwoWay}"

IsThreeState="False"

TabIndex="26" />

<StackPanel Orientation="Horizontal">

<CheckBox x:Name="chkCustom"

Height="25"

Content="{Binding Source={StaticResource ApplicationResources},

Path=PscLabels.CustomClauses}"

IsChecked="{Binding Path=Model.HasCustomClauses,

Mode=TwoWay}"

IsThreeState="False"

TabIndex="27" />

<sdk:DescriptionViewer Description="{Binding Source={StaticResource ApplicationResources}, Path=PscTooltips.CustomClauses}" />

</StackPanel>

<StackPanel x:Name="canvasCustom"

Width="550"

Height="auto"

VerticalAlignment="Center"

Orientation="Vertical"

Visibility="{Binding ElementName=chkCustom,

Path=IsChecked,

Converter={StaticResource BoolToVisibilityConverter},

FallbackValue=Collapsed}">

<rtf:RtfDataProvider RichTextBox="{Binding ElementName=rtbCustomClause}"

Rtf="{Binding Model.CustomClauses,

Mode=TwoWay}"

SetupDocument="RtfDataProvider_SetupDocument" />

<telerik:RadRichTextBox x:Name="rtbCustomClause"

Grid.Row="15"

Grid.Column="1"

Width="550"

Height="175"

HorizontalAlignment="Left"

VerticalAlignment="Top"

DocumentInheritsDefaultStyleSettings="True"

FontSize="12"

HorizontalScrollBarVisibility="Hidden"

IsContextMenuEnabled="True"

IsSelectionMiniToolBarEnabled="True"

IsSpellCheckingEnabled="False"

Style="{StaticResource RadRichTextBoxStyle}"

VerticalScrollBarVisibility="Auto" />

</StackPanel>

<StackPanel Name="spButtons"

Grid.Row="21"

Grid.Column="1"

HorizontalAlignment="Center"

Orientation="Horizontal">

<telerik:RadButton x:Name="OKButton"

Width="75"

Height="23"

Click="OKButton_Click"

Content="Save"

IsEnabled="{Binding Path=CanSave,

Mode=TwoWay}" Margin="0,0,5,0" />

<telerik:RadButton x:Name="CancelButton"

Width="75"

Height="23"

Click="CancelButton_Click"

Content="Cancel" Margin="5" />

</StackPanel>

<!--

<StackPanel Grid.Row="22" Grid.Column="0" VerticalAlignment="Bottom">

<Image Source="/ContractSystem;component/Assets/Quill6.JPG"

Width="33" Grid.Column="0" Height="33"

HorizontalAlignment="Left" VerticalAlignment="Bottom" IsHitTestVisible="True" />

</StackPanel>

-->

</Grid>

</Border>

<!--

<Border Width="125"

BorderBrush="Gray"

BorderThickness="2"

CornerRadius="10">

<StackPanel>

<sdk:Label Content="For office use only" Foreground="Red" />

<sdk:Label Content="{Binding Path=Model.Type, Mode=TwoWay}" />

<sdk:Label Content="{Binding Path=Model.ContractType, Mode=TwoWay}" />

<sdk:Label Content="{Binding Path=Model.AddedBy, Mode=TwoWay}" />

<sdk:Label Content="{Binding Path=Model.DateAdded, Mode=TwoWay}" />

</StackPanel>

</Border>

-->

</StackPanel>

</ScrollViewer>

</controls:ChildWindow>

System.NullReferenceException

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