Intersoft Community - validation

Validation Questions

soup27 — Wed, 10 Jun 2015 04:54:42 GMT

Hi,

I want to add validation to the UXTextBox using the IDataErrorInfo Interface. My question is when the window is initialized the error info will appears two overlapping red box over the UXTextBox(see the attachments 2.png).

And when I type some in the UXTextBox to insure to pass the validation, one red box disappered and the other overlapping red box is still there(see the attachments 3.png).

What is the correct setting to use Validation feature?

UXGridView Server Side Validation

mg@hsig.ch — Wed, 02 Nov 2011 05:19:23 GMT

I use Client UI MVVM Data Application with RIA Services. I have added Atributes on Metadata Class, eg. DataAnnotations.RequiredAttribute

[Required(ErrorMessage = "Eingabe erforderlich!")]
[StringLength(250, ErrorMessage = "Es sind max. 250 Zeichen erlaubt!")]
public string FQDN { get; set; }

When the Cell is empty, I get the Errormessage in UXGridView Footer and the row has a red background color. Please have a look at attached picture (1). This works fine.

Now, I have to validate also on server side. In my case, the FQDN must be unique. So I have writ following method:

public bool IsComputerFQDNRegistered(string fqdn)
{
    return _qmsEntities.Computer.Where(c => c.FQDN == fqdn).Count() > 0;
}

In Insert and Update method, I call IsComputerFQDNRegistered, like this:

public void InsertComputer(Computer computer)
{
    if (IsComputerFQDNRegistered(computer.FQDN))
    {
        ValidationResult error = new ValidationResult("FQDN ist bereits vorhanden!", new string[] { "FQDN" });
        throw new ValidationException(error, null, computer);
    }

    if ((computer.EntityState != EntityState.Detached))
    {
        _qmsEntities.ObjectStateManager.ChangeObjectState(computer, EntityState.Added);
    }
    else
    {
        _qmsEntities.Computer.AddObject(computer);
    }
}

Now I change one FQDN in UXGridView and leave the row to save the changes. I get a Errormessage (see UXGridViewErrorMessageValitationError.png). I would like display the ValidationResult ErrorMessage (FQDN ist bereits vorhanden). Where can I find this Info?

After clicking OK on Errormessage, I can not see any errors in UXGridView. Only when I mark the row (with Errors) and change in edit mode, the Errormessage will displayed. But in the UXGridView Footer I can not see the message (please have a look at attached picture (2)). It is possible to change this behavoir? It would be great, when the background color would be red.

Thanks for help

Michael

WebGrid add pending changes from server-side

interfung — Mon, 17 Oct 2011 07:34:17 GMT

Hi,

Below is the scenario for my project.

I have a grid for user input
The grid's data-binding, layout and batch update is done at server side
The grid is paged
Call AcceptAllChanges (client-side) to invoke WebGrid1.BatchUpdate
Validation is done in WebGrid1.BatchUpdate (before write to Database, server-side). [ I wonder if there is any other events for the gird's data validation]

As I need to validate before updating data in Database; so I called "AcceptAllChanges" (client-side) to invoke the server-side "WebGrid1.BatchUpdate" event.

When Input is valid, everything goes fine. But if the input is invalid, all the Pending changes will be lost (since I call the AcceptAllChanges). Since the WebGrid is paged, so I can't use client-side to add back the pending changes.

Is there any way that I could add the Pending changes back when the grid has invalid input, so that, the data inputted before "AcceptAllChanges" can stay on the grid for users to correct.

Or is there any Event of WebGrid can be provided for validation before the WebGrid.batchUpdate Event.

Thanks and Regards,

Fung