public PageModel Validate()
{
Assert.IsTrue(Value != null);
var rules = new Dictionary<string, string[]>
{
{"Id", new string[]{"required", "minlength:2", "maxlength:140"}},
{"Title", new string[]{"required", "minlength:2", "maxlength:140"}},
};
this.ValidateValue(rules);
return this;
}