public IEnumerable <ValidationResult> Validate(ValidationContext validationContext)
{
if (Sales != null && Sales.Any())
{
var percentOfAllAreas = Sales.Where(t => t.AreaPercent.HasValue).Sum(t => t.AreaPercent);
var percentOfAllDepartments = Sales.Where(t => t.DepartmentPercent.HasValue).Sum(t => t.DepartmentPercent);
if (Sales.Where(t => t.AreaId.HasValue && t.AreaId > 0).GroupBy(t => t.AreaId).Any(t => t.Count() > 1))
{
yield return(new ValidationResult("You can not add the same areas."));
}
if (Sales.Where(t => t.DepartmentId.HasValue && t.DepartmentId > 0).GroupBy(t => t.DepartmentId).Any(t => t.Count() > 1))
{
yield return(new ValidationResult("You can not add the same departments."));
}
if (percentOfAllAreas > 0 && percentOfAllAreas != 100)
{
yield return(new ValidationResult("A sum of percents for all areas must be equal to 100."));
}
if (percentOfAllDepartments > 0 && percentOfAllDepartments != 100)
{
yield return(new ValidationResult("A sum of percents for all departments must be equal to 100."));
}
if (Sales.Any(t => t.AreaId.HasValue && !t.AreaPercent.HasValue))
{
yield return(new ValidationResult("You can not save area without percents."));
}
if (Sales.Any(t => t.DepartmentId.HasValue && !t.DepartmentPercent.HasValue))
{
yield return(new ValidationResult("You can not save department without percents."));
}
if (Sales.Any(t => !t.AreaId.HasValue && t.AreaPercent.HasValue))
{
yield return(new ValidationResult("You can not save percentage without areas."));
}
if (Sales.Any(t => !t.DepartmentId.HasValue && t.DepartmentPercent.HasValue))
{
yield return(new ValidationResult("You can not save percentage without departments."));
}
}
}