如何在WPF中创建网格并使用FrameworkElementFactory设置RowDefinitations？

Question

I want to use FrameworkElementFactory to create a grid template, but how to define its RowDefinition s ?

as the code

FrameworkElementFactory gridFactory = new FrameworkElementFactory(typeof(Grid));
FrameworkElementFactory RowDefinitionFactory1 = new FrameworkElementFactory(typeof(RowDefinition));
gridFactory.AppendChild(RowDefinitionFactory1);
FrameworkElementFactory RowDefinitionFactory2 = new FrameworkElementFactory(typeof(RowDefinition));
gridFactory.AppendChild(RowDefinitionFactory2);

it will throw exception...

because the <RowDefinitation> should be under <Grid.RowDefinitations>

Answer 1

FrameworkElementFactory has been deprecated:

This class is a deprecated way to programmatically create templates, which are subclasses of FrameworkTemplate such as ControlTemplate or DataTemplate; not all of the template functionality is available when you create a template using this class. The recommended way to programmatically create a template is to load XAML from a string or a memory stream using the Load method of the XamlReader class.

The suggested route is to use XamlReader.Load or XamlReader.Parse if you need to programmatically create templates.

var template = 
    "<Grid>" +
        "<Grid.RowDefinitions>" +
            "<RowDefinition/>" +
            "<RowDefinition/>" +
        "</Grid.RowDefinitions>" +
    "</Grid>";

var markup = XamlReader.Parse(template);