private static Expression GetMethodCallExpression(Enums.LogicalOperator logicalOperator, Expression filterExpression, MethodCallExpression methodCallExpression)
{
switch (logicalOperator)
{
case Enums.LogicalOperator.And:
filterExpression = filterExpression == null
? (Expression)methodCallExpression
: Expression.And(filterExpression, methodCallExpression);
break;
case Enums.LogicalOperator.Or:
filterExpression = filterExpression == null
? (Expression)methodCallExpression
: Expression.Or(filterExpression, methodCallExpression);
break;
default:
filterExpression = filterExpression == null
? (Expression)methodCallExpression
: Expression.And(filterExpression, methodCallExpression);
break;
}
return(filterExpression);
}
/// <summary>
/// Add filter to data model
/// </summary>
/// <param name="dataModel"></param>
/// <param name="columnName"></param>
/// <param name="columnType"></param>
/// <param name="columnValue"></param>
/// <param name="_operator"></param>
/// <param name="logicalOperator"></param>
/// <returns></returns>
public void AddFilter(string columnName, Enums.ParameterType columnType, string columnValue, Enums.CompareOperator _operator, Enums.LogicalOperator logicalOperator = Enums.LogicalOperator.none)
{
if (DataModel.Filters == null)
{
DataModel.Filters = new List <Filter>();
}
DataModel.Filters.Add(new Filter()
{
Column = columnName,
ValueType = columnType.ToString().Remove(0, 1),
Value = columnValue,
Operator = _operator.ToString(),
LogicalOperator = logicalOperator.ToString()
});
}
