ErrorProvider/Combobox -- validation not showing

Thank you for your reply Rocky…

That helped – that’s a cool way to bind.

But, now I am stuck at another hurdle (lack of CSLA knowledge. Trying to learn CSLA, while trying to keep up with the project time-line)

Your help is very much appreciated.

Table structure is as follows: ‘Project’ table has a foreignKey (fkFacilityInfo), pointing to ‘FacilityInfo’ table.

I have two objects ‘Project’ and ‘FacilityInfo’ Project object has reference to the FaclityInfo object through the variable (_facilityInfo).

If I update a property on the ‘Project’ object and press the save button, both the parent (Project) and the child (FacilityInfo) gets updated – No problem.

How do I call the update on the child object (FacilityInfo) when I just update a property on the facilityInfo object without updating the property on the parent object (Project).

Along the same lines of problem (Parent/Chile), how do I call the ‘ValidationRules.CheckRules(); on the child ?

Code Sample on the Project.cs:

***********************

private void DataPortal_Create(Criteria criteria)

{                

/// Initialize all the related child objects

      _facilityInfo = FacilityInfo.GetNew();

      InitializeProperty();

      ValidationRules.CheckRules();

}

protected override void DataPortal_Update()

{                

      ///tried the below two lines, hoping that it would call DataPortal_Update on the FacilityInfo   ///object – but did not work

//_facilityInfo.ApplyEdit();

//_facilityInfo.Save();

_facilityInfo.Update();

      Update();

}

private void Update()

{

    ProjectConfigurationDAL.SetProject(this);

}

Code Sample on the FacilityInfo.cs

**********************************

   public static FacilityInfo GetNew()

   {           

      return new FacilityInfo();

   }

private FacilityInfo()

{          

   _state = "-1";

   //ValidationRules.CheckRules(); ///commented this line as it was breaking

}

internal void Update()

        {

            ProjectConfigurationDAL.SetFacilityInfo(this);

        }

      /// The below method never gets executed

        protected override void DataPortal_Update()

        {

            Update();

        }

Thanks a ton in advance !!!

Regards

Hari

Make sure your data binding is set up correctly. The error provider control will work fine with a combobox control, but only if the control is properly configured with data binding.

I usually use drag-and-drop binding to get it set up right ( because otherwise I almost always bind the wrong control properties...)

1. get rid of any existing control on your form
2. in the Data Sources window, configure the object's property to use a combobox
3. drag the property onto the form to create the combobox
4. now drag the list object containing the list items from Data Sources onto the combobox

I have found this to be a reliable way to get combobox binding to work.