public object ProvideValue(IMarkupExtensionContext context)
{
Object realSource = Source ?? context.DataContext;
if ( null != realSource && !( realSource is INotifyPropertyChanged ) ) {
throw new ArgumentException("Source must be INotifyPropertyChanged to use bindings");
}
if (null != realSource) {
BindingMode mode = BindingMode.Default;
if ( Path != null ) {
Type enumType = typeof ( BindingMode );
string[ ] enumNames = enumType.GetEnumNames( );
for ( int i = 0, len = enumNames.Length; i < len; i++ ) {
if ( enumNames[ i ] == Mode ) {
mode = ( BindingMode ) Enum.ToObject( enumType, enumType.GetEnumValues( ).GetValue( i ) );
break;
}
}
}
BindingBase binding = new BindingBase( context.Object, context.PropertyName,
(INotifyPropertyChanged) realSource, Path, mode);
if ( Converter != null )
binding.Converter = Converter;
binding.Bind( );
// mb return actual property value ?
return null;
}
return null;
}
// [TestMethod]
public void TestString()
{
SourceClass source = new SourceClass();
TargetClass target = new TargetClass();
BindingBase binding = new BindingBase(target, "Title", source, "Text", BindingMode.OneWay);
binding.Bind();
source.Text = "Text!";
Assert.AreEqual( target.Title, source.Text );
}
public void TestListBinding2() {
SourceClass source = new SourceClass();
TargetClass target = new TargetClass();
BindingBase binding = new BindingBase(target, "Items", source, "SourceItems", BindingMode.OneWay);
source.SourceItems.Add("1");
binding.Bind();
Assert.IsTrue(target.Items[0] == "1");
source.SourceItems.Remove("1");
Assert.IsTrue(target.Items.Count == 0);
}
public static void TestConversion()
{
SourceClass source = new SourceClass();
TargetClass target = new TargetClass();
BindingBase binding = new BindingBase(target, "TargetInt", source, "SourceStr", BindingMode.OneWay);
BindingBase binding2 = new BindingBase(target, "TargetStr", source, "SourceInt", BindingMode.OneWay);
binding.Bind();
binding2.Bind();
source.SourceInt = 5;
source.SourceStr = "4";
Assert.AreEqual(target.TargetInt, 4);
Assert.AreEqual(target.TargetStr, "5");
}
// [TestMethod]
public void TestMethod1()
{
SourceClass source = new SourceClass( );
TargetClass target = new TargetClass( );
BindingBase binding = new BindingBase( target, "TargetStr", source, "SourceInt" );
BindingResult lastResult = null;
binding.OnBinding += result => {
lastResult = result;
};
binding.Bind( );
target.TargetStr = "5";
Assert.IsTrue( source.SourceInt == 5 );
target.TargetStr = "invalid int";
Assert.IsTrue(source.SourceInt == 0);
Assert.IsTrue( lastResult.hasConversionError );
}
public void TestMethod1()
{
TargetClass target = new TargetClass( );
SourceClass source = new SourceClass( );
BindingBase binding = new BindingBase( target, "Text", source, "Val" );
binding.Converter = new DoubleToStringConverter( );
binding.Bind( );
source.Val = 3.0f;
Assert.IsTrue( target.Text == "3" );
target.Text = "0.5";
Assert.IsTrue( source.Val == 0.5 );
}
// [TestMethod]
public void TestValidation( ) {
SourceClass source = new SourceClass();
TargetClass target = new TargetClass();
BindingBase binding = new BindingBase(target, "TargetStr", source, "SourceInt", BindingMode.OneWay);
binding.UpdateSourceIfBindingFails = false;
binding.Bind();
target.TargetInt = 1;
source.SourceStr = "invalid int";
Assert.IsTrue( target.TargetInt == 1 );
}
// [TestMethod]
public void TestMethod1()
{
SourceClass source = new SourceClass( );
TargetClass target = new TargetClass( );
BindingBase binding = new BindingBase( target, "S", source, "Str" );
binding.Adapter = new MyAdapter( );
binding.Bind();
source.Str = "123";
Assert.IsTrue( target.GetTargetStr( ) == "123" );
target.SetTargetStr( "456" );
Assert.IsTrue(source.Str == "456");
binding.Unbind( );
source.Str = "123";
Assert.IsTrue(target.GetTargetStr() == "456");
}