public void AddFilterProperty(string propertyName, object propertyValue, string extensionMethod,
OperatorEnumeration operatorAction, bool isNegation = false)
{
var property = _context.DataSetType.GetProperty(propertyName);
var propertyType = property?.PropertyType;
if (propertyType != typeof(string) && extensionMethod != LinqOperatorConstants.ConstantEquals)
{
throw new ArgumentException($"Property ${propertyName} not support method ${extensionMethod}");
}
if (propertyType == null)
{
return;
}
var propertyAccess =
Expression.MakeMemberAccess(_context.ParameterExpression,
property ?? throw new InvalidOperationException());
var methodInfo = propertyType.GetMethod(extensionMethod, new[] { propertyType });
var castValue = ObjectCasterUtil.CastPropertiesType(property, propertyValue);
var propertyConstant = Expression.Constant(castValue, propertyType);
if (propertyType.IsGenericType &&
propertyType.GetGenericTypeDefinition() == typeof(Nullable <>) &&
propertyType == typeof(DateTime?))
{
var converted = Expression.Convert(propertyConstant, typeof(object));
if (isNegation)
{
AddNegationExpression(operatorAction, propertyAccess, methodInfo, converted);
}
else
{
AddNormalExpression(operatorAction, propertyAccess, methodInfo, converted);
}
}
else
{
if (isNegation)
{
AddNegationExpression(operatorAction, propertyAccess, methodInfo, propertyConstant);
}
else
{
AddNormalExpression(operatorAction, propertyAccess, methodInfo, propertyConstant);
}
}
}
public void AddFilterListProperty(string propertyName, object propertyValue, OperatorEnumeration operatorAction)
{
var property = _context.DataSetType.GetProperty(propertyName);
var propertyType = property?.PropertyType;
if (propertyType == null)
{
return;
}
var castValue = ObjectCasterUtil.CastPropertiesTypeList(property, propertyValue);
var methodInfo = castValue.GetType()
.GetMethod(LinqOperatorConstants.ConstantContains, new[] { propertyType });
var list = Expression.Constant(castValue);
var value = Expression.Property(_context.ParameterExpression, propertyName);
AddNormalExpression(operatorAction, list, methodInfo, value);
}
