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Dataform validation errors being repeated

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DataForm

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peter asked on 21 Jun 2012, 01:07 PM

Hi, I have a dataform, and i am implementing IDataErrorInfo, the problem i am encountering is that errors are being displayed twice for instance "Please Provide First Name" is repeated twice in the validation summary. I am using a style for the validation summary which i actually saw in one of your samples "CRM". This is what the style looks like maybe someone can spot whats causing my issue;

<dataForm:DataFormValidationSummary x:Name="PART_ValidationSummary" Visibility="Collapsed" Grid.Row="3" Height="Auto">

<dataForm:DataFormValidationSummary.Style>

<Style TargetType="dataForm:DataFormValidationSummary">

<Setter Property="Template">

<Setter.Value>

<ControlTemplate>

<ItemsControl IsTabStop="False" ItemsSource="{Binding RelativeSource={RelativeSource TemplatedParent}, Path=Errors}" Background="{StaticResource ValidationBrush}" Foreground="{StaticResource MainBrush}" >

<ItemsControl.Style>

<Style TargetType="ItemsControl">

<Setter Property="Template">

<Setter.Value>

<ControlTemplate>

<ScrollViewer IsTabStop="False" Name="ScrollViewer" Background="{TemplateBinding Background}" BorderThickness="0" ScrollViewer.VerticalScrollBarVisibility="Auto" ScrollViewer.HorizontalScrollBarVisibility="Auto" Foreground="{TemplateBinding Foreground}">

<ItemsPresenter/>

</ScrollViewer>

</ControlTemplate>

</Setter.Value>

</Setter>

<Setter Property="ItemTemplate">

<Setter.Value>

<DataTemplate>

<StackPanel Orientation="Horizontal">

<TextBlock Margin="5,5,0,5" Text="{Binding Path=ErrorContent}" />

</StackPanel>

</DataTemplate>

</Setter.Value>

</Setter>

<Setter Property="MaxHeight" Value="75"/>

</Style>

</ItemsControl.Style>

</ItemsControl>

</ControlTemplate>

</Setter.Value>

</Setter>

<Setter Property="MaxHeight" Value="75"/>

</Style>

</dataForm:DataFormValidationSummary.Style>

</dataForm:DataFormValidationSummary>

And heres an example of one of my Validation columns;

string _error;

const string ErrorText = "Error in Member Details";

public string Error

{

get { return _error; }

}

public string this[string columnName]

{

get

{

_error = null;

switch (columnName)

{

case "EnvironmentName":

{

if (string.IsNullOrEmpty(EnvironmentName))

_error = "must contain data";

break;

}

return _error;

}

Then my dataform on the fields i need validated I have;

NotifyOnValidationError

=True,ValidatesOnDataErrors=True

I appreciate any help, thanks

Dataform validation errors being repeated

2 Answers, 1 is accepted