protected override object GetValueCore(object component)
{
if (m_propertyDescriptor != null)
{
object value;
try
{
value = m_propertyDescriptor.GetValue(component);
}
catch (DataException)
{
// We have to return null if the datarow is deleted from the DataTable.
// When the System.Data.DataRow have RowState == detached, it can be because it has been deleted
// or it being inserted, nothing special found to differentiate that 2 state. So doing a try catch.
value = null;
}
CultureInfo converterCulture = this.ConverterCulture;
if (converterCulture == null)
{
converterCulture = CultureInfo.InvariantCulture;
}
return(this.GetBindingConverter(component).Convert(
value, this.DataType,
this.ConverterParameter, converterCulture));
}
if (m_bindingPathValueExtractorForRead == null)
{
CultureInfo converterCulture = this.ConverterCulture;
if (converterCulture == null)
{
converterCulture = CultureInfo.InvariantCulture;
}
PropertyPath propertyPath = null;
if (!string.IsNullOrEmpty(this.ValuePath))
{
propertyPath = new PropertyPath(this.ValuePath, BindingPathValueExtractor.EmptyObjectArray);
}
m_bindingPathValueExtractorForRead = new BindingPathValueExtractor(
this.ValueXPath, propertyPath, false,
this.DataType,
this.GetBindingConverter(component),
this.ConverterParameter, converterCulture);
}
return(m_bindingPathValueExtractorForRead.GetValueFromItem(component));
}
protected override void SetValueCore(object component, object value)
{
if (m_propertyDescriptor != null)
{
CultureInfo converterCulture = this.ConverterCulture;
if (converterCulture == null)
{
converterCulture = CultureInfo.InvariantCulture;
}
object convertedValue = this.GetBindingConverter(component).ConvertBack(
value,
m_propertyDescriptor.PropertyType,
this.ConverterParameter,
converterCulture);
m_propertyDescriptor.SetValue(component, convertedValue);
}
else
{
if (m_bindingPathValueExtractorForWrite == null)
{
CultureInfo converterCulture = this.ConverterCulture;
if (converterCulture == null)
{
converterCulture = CultureInfo.InvariantCulture;
}
PropertyPath propertyPath = null;
if (!string.IsNullOrEmpty(this.ValuePath))
{
propertyPath = new PropertyPath(this.ValuePath, BindingPathValueExtractor.EmptyObjectArray);
}
m_bindingPathValueExtractorForWrite = new BindingPathValueExtractor(
this.ValueXPath, propertyPath, true,
this.DataType,
this.GetBindingConverter(component), this.ConverterParameter, converterCulture);
}
m_bindingPathValueExtractorForWrite.SetValueToItem(component, value);
}
base.SetValueCore(component, value);
}
protected override void SetValueCore( object component, object value )
{
if( m_propertyDescriptor != null )
{
CultureInfo converterCulture = this.ConverterCulture;
if( converterCulture == null )
converterCulture = CultureInfo.InvariantCulture;
object convertedValue = this.GetBindingConverter( component ).ConvertBack(
value,
m_propertyDescriptor.PropertyType,
this.ConverterParameter,
converterCulture );
m_propertyDescriptor.SetValue( component, convertedValue );
}
else
{
if( m_bindingPathValueExtractorForWrite == null )
{
CultureInfo converterCulture = this.ConverterCulture;
if( converterCulture == null )
converterCulture = CultureInfo.InvariantCulture;
PropertyPath propertyPath = null;
if( !string.IsNullOrEmpty( this.ValuePath ) )
propertyPath = new PropertyPath( this.ValuePath, BindingPathValueExtractor.EmptyObjectArray );
m_bindingPathValueExtractorForWrite = new BindingPathValueExtractor(
this.ValueXPath, propertyPath, true,
this.DataType,
this.GetBindingConverter( component ), this.ConverterParameter, converterCulture );
}
m_bindingPathValueExtractorForWrite.SetValueToItem( component, value );
}
base.SetValueCore( component, value );
}
protected override object GetValueCore( object component )
{
if( m_propertyDescriptor != null )
{
object value;
try
{
value = m_propertyDescriptor.GetValue( component );
}
catch( DataException )
{
// We have to return null if the datarow is deleted from the DataTable.
// When the System.Data.DataRow have RowState == detached, it can be because it has been deleted
// or it being inserted, nothing special found to differentiate that 2 state. So doing a try catch.
value = null;
}
CultureInfo converterCulture = this.ConverterCulture;
if( converterCulture == null )
converterCulture = CultureInfo.InvariantCulture;
return this.GetBindingConverter( component ).Convert(
value, this.DataType,
this.ConverterParameter, converterCulture );
}
if( m_bindingPathValueExtractorForRead == null )
{
CultureInfo converterCulture = this.ConverterCulture;
if( converterCulture == null )
converterCulture = CultureInfo.InvariantCulture;
PropertyPath propertyPath = null;
if( !string.IsNullOrEmpty( this.ValuePath ) )
propertyPath = new PropertyPath( this.ValuePath, BindingPathValueExtractor.EmptyObjectArray );
m_bindingPathValueExtractorForRead = new BindingPathValueExtractor(
this.ValueXPath, propertyPath, false,
this.DataType,
this.GetBindingConverter( component ),
this.ConverterParameter, converterCulture );
}
return m_bindingPathValueExtractorForRead.GetValueFromItem( component );
}
