public void BindingExtensionBaseTest()
{
string text = @"<FrameworkElement xmlns='http://schemas.microsoft.com/winfx/2006/xaml/presentation' xmlns:x='http://schemas.microsoft.com/winfx/2006/xaml' Width='{Binding DoubleValue}'/>";
FrameworkElement element = XamlLoader.Load(XamlParser.Parse(text)) as FrameworkElement;
BindingTestDataContext dataContext = new BindingTestDataContext();
dataContext.DoubleValue = 100;
element.DataContext = dataContext;
Assert.AreEqual(100, element.Width);
dataContext.DoubleValue = 200;
Assert.AreEqual(200, element.Width);
element.Width = 300;
Assert.AreEqual(300, dataContext.DoubleValue);
}
public void StyleDataTriggerTest()
{
string text = @"
<Style xmlns='http://schemas.microsoft.com/winfx/2006/xaml/presentation' xmlns:x='http://schemas.microsoft.com/winfx/2006/xaml' xmlns:test='clr-namespace:Granular.Presentation.Tests;assembly=Granular.Presentation.Tests'>
<Setter Property='FrameworkElement.Width' Value='100'/>
<Style.Triggers>
<DataTrigger Binding='{Binding DoubleValue}' Value='1'>
<Setter Property='FrameworkElement.Width' Value='200'/>
</DataTrigger>
</Style.Triggers>
</Style>";
TestStyle style = new TestStyle();
XamlLoader.Load(style, XamlParser.Parse(text));
Control control = new Control();
BindingTestDataContext dataContext = new BindingTestDataContext();
dataContext.DoubleValue = 1;
control.Style = style;
Assert.AreEqual(100, control.Width);
control.DataContext = dataContext;
Assert.AreEqual(200, control.Width);
dataContext.DoubleValue = 2;
Assert.AreEqual(100, control.Width);
dataContext.DoubleValue = 1;
Assert.AreEqual(200, control.Width);
control.DataContext = null;
Assert.AreEqual(100, control.Width);
}
public void BindingExtensionConverterTest()
{
string text = @"<FrameworkElement xmlns='http://schemas.microsoft.com/winfx/2006/xaml/presentation' xmlns:x='http://schemas.microsoft.com/winfx/2006/xaml' xmlns:test='clr-namespace:Granular.Presentation.Tests.Data;assembly=Granular.Presentation.Tests' Width='{Binding IntValue, Converter={test:BindingTestIntToDoubleConverter}, ConverterParameter=10}'/>";
FrameworkElement element = XamlLoader.Load(XamlParser.Parse(text)) as FrameworkElement;
BindingTestDataContext dataContext = new BindingTestDataContext();
dataContext.IntValue = 10;
element.DataContext = dataContext;
Assert.AreEqual(100, element.Width);
dataContext.IntValue = 20;
Assert.AreEqual(200, element.Width);
element.Width = 300;
Assert.AreEqual(30, dataContext.IntValue);
}
public void BindingExtensionBaseTest()
{
string text = @"<FrameworkElement xmlns='http://schemas.microsoft.com/winfx/2006/xaml/presentation' xmlns:x='http://schemas.microsoft.com/winfx/2006/xaml' Width='{Binding DoubleValue}'/>";
FrameworkElement element = XamlLoader.Load(XamlParser.Parse(text)) as FrameworkElement;
BindingTestDataContext dataContext = new BindingTestDataContext();
dataContext.DoubleValue = 100;
element.DataContext = dataContext;
Assert.AreEqual(100, element.Width);
dataContext.DoubleValue = 200;
Assert.AreEqual(200, element.Width);
element.Width = 300;
Assert.AreEqual(300, dataContext.DoubleValue);
}
public void BindingExtensionConverterTest()
{
string text = @"<FrameworkElement xmlns='http://schemas.microsoft.com/winfx/2006/xaml/presentation' xmlns:x='http://schemas.microsoft.com/winfx/2006/xaml' xmlns:test='clr-namespace:Granular.Presentation.Tests.Data;assembly=Granular.Presentation.Tests' Width='{Binding IntValue, Converter={test:BindingTestIntToDoubleConverter}, ConverterParameter=10}'/>";
FrameworkElement element = XamlLoader.Load(XamlParser.Parse(text)) as FrameworkElement;
BindingTestDataContext dataContext = new BindingTestDataContext();
dataContext.IntValue = 10;
element.DataContext = dataContext;
Assert.AreEqual(100, element.Width);
dataContext.IntValue = 20;
Assert.AreEqual(200, element.Width);
element.Width = 300;
Assert.AreEqual(30, dataContext.IntValue);
}