The point of the exception presumably is that you cannot two-way bind a binding-source itself, so it tries to prevent you from creating a binding which does not behave the way you would want it to. By using {Binding Path=.} you just trick the error detection. (Also it’s not unheard of that documentation is erroneous … Read more
I dont know about XamGrid but that’s what i’ll do with a standard wpf DataGrid: <DataGrid> <DataGrid.Columns> <DataGridTemplateColumn> <DataGridTemplateColumn.CellTemplate> <DataTemplate> <TextBlock Text=”{Binding DataContext.MyProperty, RelativeSource={RelativeSource AncestorType=MyUserControl}}”/> </DataTemplate> </DataGridTemplateColumn.CellTemplate> <DataGridTemplateColumn.CellEditingTemplate> <DataTemplate> <TextBox Text=”{Binding DataContext.MyProperty, RelativeSource={RelativeSource AncestorType=MyUserControl}}”/> </DataTemplate> </DataGridTemplateColumn.CellEditingTemplate> </DataGridTemplateColumn> </DataGrid.Columns> </DataGrid> Since the TextBlock and the TextBox specified in the cell templates will be part of the … Read more
I looked at a couple options and samples out there. The thing that seems to work best for me is to “bump” one of the properties that causes the Popup to reposition itself on its own. The property that I used is HorizontalOffset. I set it to (itself + 1) and then set it back … Read more
This is what I did: public class CombiningConverter : IValueConverter { public IValueConverter Converter1 { get; set; } public IValueConverter Converter2 { get; set; } public object Convert( object value, Type targetType, object parameter, CultureInfo culture) { object convertedValue = Converter1.Convert(value, targetType, parameter, culture); return Converter2.Convert( convertedValue, targetType, parameter, culture); } public object ConvertBack( object … Read more
You can bind to ANY property on a static class using the x:Static markup extension but if thy do not implement any change tracking, it might cause errors on the refresh! <TextBlock Text=”{Binding Source={x:Static sys:Environment.MachineName}}” />
⛔️ Don’t use a Bad practice! Most of the answers (including the @kontiki accepted answer) method cause the engine to rerender the entire UI on each change and Apple mentioned this as a bad practice at wwdc2021 (around time 7:40) ✅ Swift 5.5 From this version of swift, you can use binding array elements directly … Read more
Try using x:Static markup extension: <RadioButton Content=”Female” IsChecked=”{Binding Path=Gender, Converter={StaticResource genderConverter}, ConverterParameter={x:Static model:GenderType.Female}}”/> OR, you could just pass a string and use Enum.Parse to convert that string to the enum type in the converter: <RadioButton Content=”Female” IsChecked=”{Binding Path=Gender, Converter={StaticResource genderConverter}, ConverterParameter=Female}”/> – GenderType gender = (GenderType)Enum.Parse(typeof(GenderType), parameter.ToString());
You can use a MultiBinding with a converter which implements IMultiValueConverter. Just to give an answer you can (almost) copy&paste: Static resource needed: <converterNamespace:BooleanAndConverter x:Key=”booleanAndConverter” /> The ComboBox: <ComboBox Name=”MyComboBox”> <ComboBox.IsEnabled> <MultiBinding Converter=”{StaticResource booleanAndConverter}”> <Binding ElementName=”SomeCheckBox” Path=”IsChecked” /> <Binding ElementName=”AnotherCheckbox” Path=”IsChecked” /> </MultiBinding> </ComboBox.IsEnabled> </ComboBox> The code for the converter: namespace ConverterNamespace { public class … Read more
You can do this by simply using ngClass : Here first,second and third are the name of the classes. And instead of true/false , you can directly put your conditions over there <div [ngClass]=”{‘first’: true, ‘second’: true, ‘third’: false}”>…</div> In your case <div [ngClass]=”{‘loading-state’: loading, ‘my-class’: loading }”>…</div> Or Shorter Veriosn (as @matko.kvesic commented) <div … Read more
(extracted some explanation that was hidden in comments in other answer) The problem lies in the following line: this.dom.addEventListener(“click”, self.onclick, false); Here, you pass a function object to be used as callback. When the event trigger, the function is called but now it has no association with any object (this). The problem can be solved … Read more