public void AddValidation(Grid grid, DataViewBase dataView)
{
Action <string, Column> setValidator = delegate(string attributeName, Column col)
{
col.Validator = delegate(object value, object item)
{
Func <string, GridValidatorDelegate> indexer = dataView.GridValidationIndexer();
GridValidatorDelegate validationRule = indexer(attributeName);
if (validationRule != null)
{
return(validationRule(value, item));
}
else
{
ValidationResult result = new ValidationResult();
result.Valid = true;
return(result);
}
};
};
if (dataView.GridValidationIndexer() != null)
{
foreach (Column col in grid.GetColumns())
{
string fieldName = col.Field;
setValidator(fieldName, col);
}
}
}
public static GridValidatorDelegate ConvertToGridValidation(ValidationRuleDelegate ruleDelegate)
{
GridValidatorDelegate validationFunction = delegate(object value, object item)
{
ValidationRules rules = new ValidationRules();
rules = ruleDelegate(rules, item, null);
ValidationResult result = new ValidationResult();
result.Valid = true;
Dictionary validationRules = Dictionary.GetDictionary(rules);
foreach (string key in validationRules.Keys)
{
// Find the ko validation rule
if (ValidationApi.Rules.ContainsKey(key))
{
ValidationRule targetRule = (ValidationRule)ValidationApi.Rules[key];
ValidationRule sourceRule = (ValidationRule)validationRules[key];
result.Valid = targetRule.Validator(value, sourceRule.Params == null ? targetRule.Params : sourceRule.Params);
result.Message = String.IsNullOrEmpty(targetRule.Message) ? sourceRule.Message : targetRule.Message;
}
else if (key == "validation")
{
// Anon rule - can be either a single or array - we assume it's an array created by the ValidationRules class
List <AnonymousRule> anonRules = (List <AnonymousRule>)validationRules[key];
foreach (AnonymousRule rule in anonRules)
{
result.Valid = rule.validator(value);
result.Message = rule.message;
if (!result.Valid)
{
break;
}
}
}
if (!result.Valid)
{
break;
}
}
return(result);
};
return(validationFunction);
}