Yes. You can prefix every expressions with ::, even the ones in ngIf or ngClass: <div ng-if=”::(user.isSomething && user.isSomethingElse)”></div> <div ng-class=”::{classNameFoo: user.isSomething}”></div> Actually, the code simply checks that the two first characters in the expression are : in order to activate the one-time binding (and then removes them, thus the parenthesis aren’t even needed). Everything … Read more
Short answer:{Binding} is not a shortcut for “binding to itself” (in the sense of RelativeSource.Self). Rather, {Binding} is equivalent to {Binding Path=.}, which binds to the current source. To elaborate: A binding has a source and a path. You can do a “binding to itself”, for example, by using <myUIControl myProperty=”{Binding RelativeSource={RelativeSource Self}, Path=x}” /> … Read more
Sadly any DataGridColumn hosted under DataGrid.Columns is not part of Visual tree and therefore not connected to the data context of the datagrid. So bindings do not work with their properties such as Visibility or Header etc (although these properties are valid dependency properties!). Now you may wonder how is that possible? Isn’t their Binding … Read more
The short answer is that early (or static) binding refers to compile time binding and late (or dynamic) binding refers to runtime binding (for example when you use reflection).
Here ya go! <RadioButton Content=”None” xmlns:sys=”clr-namespace:System;assembly=mscorlib”> <RadioButton.IsChecked> <Binding Path=”MyProperty” Converter=”{StaticResource IntToBoolConverter}”> <Binding.ConverterParameter> <sys:Int32>0</sys:Int32> </Binding.ConverterParameter> </Binding> </RadioButton.IsChecked> </RadioButton> The trick is to include the namespace for the basic system types and then to write at least the ConverterParameter binding in element form.
You can determine the character sequence emitted by a key by pressing Ctrl–v at the command line, then pressing the key you’re interested in. On my system for F12, I get ^[[24~. The ^[ represents Esc. Different types of terminals or terminal emulators can emit different codes for the same key. At a Bash prompt … Read more
Try this: <TextBlock Text=”{Binding PropertyPath, StringFormat=d}” /> which is culture sensitive and requires .NET 3.5 SP1 or above. NOTE: This is case sensitive. “d” is the short date format specifier while “D” is the long date format specifier. There’s a full list of string format on the MSDN page on Standard Date and Time Format … Read more
List does not implement IBindingList so the grid does not know about your new items. Bind your DataGridView to a BindingList<T> instead. var list = new BindingList<Person>(persons); myGrid.DataSource = list; But I would even go further and bind your grid to a BindingSource var list = new List<Person>() { new Person { Name = “Joe”, … Read more
If your value is simply a string, you can specify it as a constant in the Source property of a binding. If it is any other primitive data type, you need to define a static resource and reference this. Define the sys namespace in the root of the XAML to point to System in mscorlib, … Read more
It’s hard to guess without code, but you should be able to set the BindingMode to OneWay. <TextBox Text=”{Binding Path=MyProperty, Mode=OneWay}” /> or from code: Binding binding = new Binding(); binding.Mode = BindingMode.OneWay;