CODEWITHSUNDEEP
c#silverlightvalidationdata-binding
Alex Burtsev
Alex Burtsev

Reputation: 12668

Silverlight DataGrid validation show validation error for all objects|properties

I have a ObservableCollection<T> where T: INotifyDataErrorInfo.

Objects in this collection have validation errors, then I bind this collection to Silverlight 4 DataGrid, is there a way to show this validation error in DataGrid? (show red cell for invalid properties for each object). By default DataGrid show validation error only when I begin to edit row, and only for active row.

Upvotes: 2

Views: 3407

Answers (1)

vortexwolf
vortexwolf

Reputation: 14037

I haven't succeeded with a TextBlock control, so I used a disabled TextBox You can change the template of the TextBox, I mean to remove border and to set its background really transparent.

multi row validatione

<sdk:DataGrid AutoGenerateColumns="False" ItemsSource="{Binding Items}" IsReadOnly="False" SelectionMode="Single">
    <sdk:DataGrid.Columns>
        <sdk:DataGridTextColumn Header="Title" Binding="{Binding Title}"/>
        <sdk:DataGridTemplateColumn Header="Link" Width="100">
            <sdk:DataGridTemplateColumn.CellTemplate>
                <DataTemplate>
                    <TextBox Text="{Binding Link, Mode=TwoWay}" Margin="2" 
                             IsEnabled="False" BorderThickness="0" Background="Transparent"/>
                </DataTemplate>
            </sdk:DataGridTemplateColumn.CellTemplate>
            <sdk:DataGridTemplateColumn.CellEditingTemplate>
                <DataTemplate>
                    <TextBox Text="{Binding Link, Mode=TwoWay}" Margin="2"/>
                </DataTemplate>
            </sdk:DataGridTemplateColumn.CellEditingTemplate>
        </sdk:DataGridTemplateColumn>
    </sdk:DataGrid.Columns>
</sdk:DataGrid>

Upvotes: 2

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