Hi Keith, If I understand your scenario - object A has an object's collection of type B which must contains 2 elements. You can decorate MasterA class with following attribute(Note: It works for Aggregated collections only...): [ RuleCriteria ( "MasterA.CollectionOfB.Count" , DefaultContexts...

4. Validation [System.ComponentModel. Browsable ( false )] [ RuleFromBoolProperty ( "Auction.AuctionTypeCollection.Unique" , DefaultContexts .Save, "Auction type entries must be unique and must use all TypeOfAuction." )] public bool IsValid{ get { Array enumVaules = Enum .GetValues...

Hi Alex, You can use validation to create a custom error message for your custom server control. Take a look at the Validation demo . The error icon and description next to an editor is only available if it's rendered by our ASPxEditors Library. Thanks.

How can I change/update editmask in runtime? I have a class like that: public class Customers : BaseObject { public Customers(Session session) : base(session) { } private Countries counties; public Countries Countries { get { return counties; } set { counties = value; OnChanged("Countries"...

Hi Bryant, The control must have focus for it work. So make sure you click within the control and then it will activate the validation. I just tested the validation for new records and it works fine. Take a look at this help topic: Row Validation and Error Indication How to: Validate Rows Also, I've...

Hi Alberto, I just tested the validation for new records and it works fine. The control must have focus for it work. So make sure you click within the control and then it will activate the validation. This may help you also: Re: Validation in grid for propertiestextedit Thanks.

After using Client Side validation on EditForm the page still does a postback and erases the error message from screen?. Any way to stop that?. I use the following javascript to check is page is valid function ApproveUpdate(CurStatus) { if (!ASPxClientEdit.ValidateEditorsInContainerById( 'FELineTab'...

Hi! I tried to use ASPxTextBox on my form (no grid this time) as a currency value editor and have a question about validation. There's ValidationSettings property with many subproperties. For my task I wanted to use RegularExpression, so I entered ValidationExpression, set CauseValidation=true and...

Hi! I have to use my own custom server control (picture selection control - composite control with TextBox and else) in a ASPxGridView. I put it in the EditItemTemplate of a used column. But what do I have to do to enable this column's validation. I put code in a RowValidating event as it's described...

Hi! I'm pretty new to ASPxGrid and here's what I couldn't find in help file = how to validate a float value being edited in a grid on the client side? Is there any editor's setting? How validation should be done on the client-side for all other types of values? Thanks.