I'm trying to bind the visibility property of a DataGridTextColumn to the IsChecked value of a combo box (cbIP). For most columns, I have solved the problem in XAML with lines like this:
<DataGridTextColumn Header="Time" Binding="{Binding MeasureTime}" Visibility="{Binding Source={x:Reference cbMeasureTime}, Path=IsChecked, Converter={StaticResource BoolToVisConverter}}"></DataGridTextColumn>
However, some columns regard values that are based on arrays of varying length (and therefore varying number of columns). This I have no problem creating in the code behind. The only problem is the visibility property. I have come this far:
private void Page_Loaded_1(object sender, RoutedEventArgs e)
{
for (int i = 0; i < ds.NumberOfIPValues; i++)
{
DataGridTextColumn col = new DataGridTextColumn() { Header = String.Format("IP #{0} (mV/V)", i + 1) };
col.Binding = new Binding(String.Format("IP[{0}]",i));
Binding b = new Binding("Visibility");
b.Source = cbIP;
b.Path = new PropertyPath(typeof(CheckBox).GetProperty("IsChecked"));
b.Converter = new BoolToVisibilityConverter();
BindingOperations.SetBinding(col, DataGridTextColumn.VisibilityProperty, b);
ViewInTableDataGrid.Columns.Add(col);
}
}
Needless to say, it doesn't work. I see the columns, but the checkbox doesnt work. (It works for the XAML-generated columns.
What do I do wrong?
Thanks in advance!
I work the other way -> Try This where the list of columns are used to generate the check boxes, and then toggle the visiblity..
<ItemsControl ItemsSource="{Binding Path=Columns, ElementName=dgSearchResult, NotifyOnTargetUpdated=True, NotifyOnSourceUpdated=True}" >
<ItemsControl.ItemTemplate>
<DataTemplate >
<Grid>
<Grid.ColumnDefinitions>
<ColumnDefinition Width="Auto"/>
<ColumnDefinition Width="5"/>
<ColumnDefinition Width="Auto"/>
</Grid.ColumnDefinitions>
<CheckBox Content="{Binding Path=Header}" IsChecked="{Binding Path=Visibility, NotifyOnTargetUpdated=True, NotifyOnSourceUpdated=True, Mode=TwoWay, Converter={StaticResource BooleanToHiddenConvertor}}" />
</Grid>
</DataTemplate>
</ItemsControl.ItemTemplate>
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