/// <summary>
/// trigger Data Annotation validators on a model
/// </summary>
/// <param name="model">The object to validate</param>
/// <param name="errorList">List to return validation errors if model if not of type BaseWebModel</param>
/// <returns>bool</returns>
public bool Validate(object model, List <ErrorModel> errorList = null)
{
bool valid = false;
var validationContext = new ValidationContext(model, null, null);// { MemberName = "FirstName" };
var validationResults = new List <ValidationResult>();
System.ComponentModel.DataAnnotations.Validator.TryValidateObject(model, validationContext, validationResults, true);
if (validationResults != null)
{
if (validationResults.Count == 0)
{
valid = true;
}
else
{
//we've got validation errors!
foreach (ValidationResult result in validationResults)
{
if (model is BaseWebModel)
{
//put result message onto model
AddResultMessages((BaseWebModel)model, result);
}
else
{
//put result message onto errorList
AddResultMessages(errorList, result);
}
}
//put the errors from the BaseWebModel into the errorList if user has supplied one.
if (model is BaseWebModel && errorList != null)
{
BaseWebModel tempModel = (BaseWebModel)model;
errorList.AddRange(tempModel.ErrorList);
}
}
}
return(valid);
}
/// <summary>
/// adds Validation results onto a BaseWebModel object's ErrorList
/// </summary>
/// <param name="obj">object of type BaseWebModel to add validation result</param>
/// <param name="result">validation result</param>
protected void AddResultMessages(BaseWebModel obj, ValidationResult result)
{
ErrorModel error = new ErrorModel();
if (result != null)
{
error.BusinessMessage = result.ErrorMessage;
error.Code = string.Join(",", result.MemberNames.ToArray());
error.DetailMessage = result.ErrorMessage;
error.ServiceName = obj.GetType().AssemblyQualifiedName;
}
//Add ErrorModel objs to this.ErrorList
if (obj.ErrorList == null)
{
obj.ErrorList = new List <ErrorModel>();
}
obj.ErrorList.Add(error);
}
/// <summary>
/// trigger Data Annotation validators on a model and return the results for the requested array of fields
/// </summary>
/// <param name="model">The object validate</param>
/// <param name="fieldNames">array of field to return validation error for</param>
/// <param name="errorList">List to return validation errors if model if not of type BaseWebModel</param>
/// <returns>bool</returns>
public bool Validate(object model, string[] fieldNames, List <ErrorModel> errorList = null)
{
bool valid = true;
var validationContext = new ValidationContext(model, null, null);
var validationResults = new List <ValidationResult>();
System.ComponentModel.DataAnnotations.Validator.TryValidateObject(model, validationContext, validationResults, true);
foreach (ValidationResult result in validationResults)
{
foreach (string fieldName in fieldNames)
{
List <string> invalidFieldNames = result.MemberNames.ToList <string>();
if (invalidFieldNames.Contains(fieldName))
{
valid = false;
if (model is BaseWebModel)
{
//put result message onto model
AddResultMessages((BaseWebModel)model, result);
}
else
{
//put result message onto errorList
AddResultMessages(errorList, result);
}
break;
}
}
}
//put all the errors on the BaseWebModel into the errorList if user has supplied one.
if (valid == false && model is BaseWebModel && errorList != null)
{
BaseWebModel tempModel = (BaseWebModel)model;
errorList.AddRange(tempModel.ErrorList);
}
return(valid);
}
