WPF Background, BorderBrush, BorderThickNess through IValueConverter

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Hi all,

I have developed a application which uses PRISM 4.0 in which i have a UserControl and a DataGrid in it. Based on the data grid cell value the IvalueConvertor Binded to the CellTemplate Below

C#

<DataTemplate x:Key="cellContentNumberTemplate"  >
            <TextBlock Text="{Binding}" TextAlignment="Right" Tag="{Binding Path=.}" x:Name="numTextBlock"  
                       Foreground="{Binding Path=., Converter={StaticResource fontColorConvertor}, RelativeSource={RelativeSource Self}}"  />
        </DataTemplate>

Will use the following code to get Border (Visual Parent) of that particular TextBlock

C#

Border templateBorder = Eagle.Windows.Helpers.UIHelpers.FindVisualParent<Border>(txt);

By using the Border i am changing the Background, BorderBrush, BorderThickness. which works
fine.

But when i suppose to scroll Datagrid the style what i have applied was changing to some other cell Virtually (The value was not actually changing but the datagrid mimicks the change).

do any one have this problem previously please let me get any solution for this.

Posted 8-Apr-13 21:43pm

cpquest

Updated 8-Apr-13 21:46pm

v2

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Comments

Thomas Duwe 9-Apr-13 5:57am

I used DataTriggers in the DataTemplate in conjunction with a converter in the DataTrigger's binding to return true/false if something needed a change.
For example you can trigger the changes if the DataContext of the DataGridCell changes:
<datatrigger value="True" binding="{Binding Path=DataContext, UpdateSourceTrigger=PropertyChanged, RelativeSource={RelativeSource AncestorType=DataGridCell, Mode=FindAncestor}, Converter={<converter here>}}" Value="True">
</datatrigger>

Whereas the converter needs to return true or false so that the binding will work.

And inside of DataTrigger you can then set the properties of "numTextBlock".

[no name] 9-Apr-13 6:31am

Thanks for reply,
ya i have tried. As i have mentioned above i am getting the Border which is VisualParent
of the TextBlock Which is done by the IValueConvertor with the Border object i am setting
the Background and BorderThickNess of the border.

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