public void ConvertTest()
{
var converter = new NumberToPercentConverter();
object value = null;
object parameters = null;
var result = converter.Convert(value, typeof(object), parameters, CultureInfo.InvariantCulture);
Assert.IsNull(result);
// if not decimal return value
const int IntValue = 100;
value = IntValue;
result = converter.Convert(value, typeof(object), parameters, CultureInfo.InvariantCulture);
Assert.AreEqual(result, IntValue);
value = 100m;
result = converter.Convert(value, typeof(object), parameters, CultureInfo.InvariantCulture);
Assert.AreEqual(result, 1m);
value = 0m;
result = converter.Convert(value, typeof(object), parameters, CultureInfo.InvariantCulture);
Assert.AreEqual(result, 0m);
value = 233m;
result = converter.Convert(value, typeof(object), parameters, CultureInfo.InvariantCulture);
Assert.AreEqual(result, 2.33m);
}
private static ConverterInfo GetConverterInfo(IColumnItem column)
{
var localProperty = column.Property;
IValueConverter converterObject = null;
object converterParameter = null;
var converterString = string.Empty;
PropertyInfo sourceProperty = null;
if (ReferenceFieldsHelper.IsReferenceProperty(localProperty))
{
// Field type specific attributes should be taken from source.
var refInfo = ReferenceFieldsHelper.GetCrossRefInfo(localProperty);
sourceProperty = new ReferenceFieldsHelper().GetSourcePropertyInfo(refInfo.Item1, refInfo.Item2);
}
var prop = sourceProperty ?? localProperty;
if (PropertyIsDateTime(localProperty, column))
{
var datetimeFormat = ReferenceFieldsHelper.GetDateTimeFormat(prop);
if (!string.IsNullOrEmpty(datetimeFormat))
{
converterObject = new DateTimeFormatConverter();
converterString = string.Format(CultureInfo.InvariantCulture, "Converter={{StaticResource DateTimeFormatConverter}}, ConverterParameter={0}", datetimeFormat);
}
}
else if (localProperty.PropertyType == typeof(string))
{
var approvalAttribute = (ApprovalDefinitionAttribute)(sourceProperty ?? prop).GetCustomAttributes(typeof(ApprovalDefinitionAttribute), false).FirstOrDefault();
if (approvalAttribute != null)
{
converterObject = new ApprovalStateToDisplayNameConverter();
converterString = string.Format(CultureInfo.InvariantCulture, "Converter={{StaticResource ApprovalStateToDisplayNameConverter}}");
}
}
else if (prop.PropertyType == typeof(bool?))
{
var checkboxSettings = ReferenceFieldsHelper.GetCheckboxSettings(prop);
if (checkboxSettings != null && checkboxSettings.IsSwitchToggle)
{
var param = new[]
{
checkboxSettings.UndefinedLabel,
checkboxSettings.FalseLabel,
checkboxSettings.TrueLabel
};
converterObject = new CheckboxToCustomValueConverter();
converterParameter = string.Join("~", param).Replace(' ', '_').Replace('\'', '^');
converterString = string.Format(CultureInfo.InvariantCulture, "Converter={{StaticResource checkboxToCustomValueConverter}}, ConverterParameter={0}", converterParameter);
}
}
var numericAttribute = (NumericAttribute)prop.GetCustomAttributes(typeof(NumericAttribute), false).FirstOrDefault();
if (numericAttribute != null)
{
switch (numericAttribute.NumericType)
{
case NumericTypes.Percentage:
converterObject = new NumberToPercentConverter();
converterString = string.Format(CultureInfo.InvariantCulture, "Converter={{StaticResource NumberToPercentConverter}}");
break;
}
}
return new ConverterInfo(converterObject, converterParameter, converterString);
}
