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1. Validation Function
using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;
using System.ComponentModel.DataAnnotations;
using System.Web.Mvc;
using System.Reflection;
namespace WebApplication10.Models
{
public class ValidateCheckBoxAttribute: ValidationAttribute, IClientValidatable
{
private readonly string[] _fields;
private const string DefaultErrorMessage = "{0} is mandatory";
public string firstPropertyName { get; set; }
public ValidateCheckBoxAttribute(string[] fields)
{
_fields = fields;
}
protected override ValidationResult IsValid(object value, ValidationContext validationContext)
{
PropertyInfo propertyFirst = validationContext.ObjectType.GetProperty(_fields[0]);
PropertyInfo propertySecond = validationContext.ObjectType.GetProperty(_fields[1]);
PropertyInfo property3 = validationContext.ObjectType.GetProperty(_fields[2]);
var valueFirst = propertyFirst.GetValue(validationContext.ObjectInstance, null);
var valueSecond = propertySecond.GetValue(validationContext.ObjectInstance, null);
var value3 = property3.GetValue(validationContext.ObjectInstance, null);
var dispFirst = ModelMetadataProviders.Current.GetMetadataForProperty(null, validationContext.ObjectType, _fields[0]);
var dispSecond = ModelMetadataProviders.Current.GetMetadataForProperty(null, validationContext.ObjectType, _fields[1]);
var disp3 = ModelMetadataProviders.Current.GetMetadataForProperty(null, validationContext.ObjectType, _fields[2]);
var firstName = dispFirst.GetDisplayName();
var secondName = dispSecond.GetDisplayName();
var th = disp3.GetDisplayName();
return null;
}
public IEnumerable<ModelClientValidationRule> GetClientValidationRules(ModelMetadata metadata, ControllerContext context)
{
Type type = Type.GetType(metadata.ContainerType.FullName);
var model = Activator.CreateInstance(type);
var provider = new DataAnnotationsModelMetadataProvider();
var firstDisplayName = provider.GetMetadataForProperty(() => model, type, _fields[0]);
var secondDisplayName = provider.GetMetadataForProperty(() => model, type, _fields[1]);
var thirdDisplayName = provider.GetMetadataForProperty(() => model, type, _fields[2]);
var one = firstDisplayName.DisplayName;
var second = secondDisplayName.DisplayName;
var third = thirdDisplayName.DisplayName;
var rule = new ModelClientValidationRule
{
ValidationType = "validatecheckbox",
ErrorMessage = " is mandatory"
};
rule.ValidationParameters.Add("fields", string.Join(",", _fields));
yield return rule;
}
}
}
2. Model
using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;
using System.ComponentModel.DataAnnotations;
namespace WebApplication10.Models
{
public class Customer
{
[ValidateCheckBox(new string[] { "IsActive", "FirstName", "LastName"})]
[Display(Name = "First Name")]
public string FirstName { get; set; }
[Display(Name="Is Active")]
public bool IsActive { get; set; }
[Display(Name = "Last Name etc....")]
public string LastName { get; set; }
}
}
