Validation on TextBox

Hi

Hi

I am using master details method I am showing data on grid  and after selecting a grid
his details showing on textbox.

Now i want to update data and I want validation on it. and want to fire proper error message too.

Mention code is not fireing any message.

Thanks

Hi Denisk

This is how I am getting records on Datagrid

public ObservableCollection<STUDENT> Students { get; private set; }
             var query = _mgr.STUDENTs;
              query.ExecuteAsync(op => { op.Results.ForEach(Students.Add);}, null);

Like this I am showing details with Clicking on Data grid
private void StudentGrid_SelectionChanged(object sender, SelectionChangedEventArgs e)
        {
            if (StudentGrid.SelectedItem == null)
            {
                return;
            }
            else
            {
              StudentSorders   aa = (StudentSorders)StudentGrid.SelectedItem;
                _id = aa.ID;
               txtName.Text = aa.NOME;
            }
        }
Here after diplaying record on txtbox i am doing add/delete/ update operation and this time
i need validation.

private void btnUpdate_Click(object sender, RoutedEventArgs e)
        {
                    STUDENT stud = Students.Where(t => t.ID == Convert.ToDecimal(_id)).Single();
                    stud.NAME = txtName.Text;
                    StudentGrid.ItemsSource = Students;
                    _mgr.SaveChangesAsync();
        }

Thanks

No..
I did not implemented any manual code

I already been went thru this page
This validation work only on Data form or grid...
How can I populate error on text box.

Thanks

Hey Denisk

Thanks for your sharing but this file is corrupted and not able to open in my side
would you like to share again..


Thanks

Hi
Thanks example looking cool
I am try to running but I have one error

 public class NoNumberVerifier : PropertyValueVerifier
            {

                public NoNumberVerifier(Type pType, string propertyName, string displayName = null, bool? shouldTreatEmptyStringAsNull = null)
                    : base(new PropertyValueVerifierArgs(pType, propertyName, false, displayName, shouldTreatEmptyStringAsNull))// error line
                {

           
             

            }

Error    1    'IdeaBlade.Validation.PropertyValueVerifierArgs' does not contain a constructor that takes 5 arguments    C:\Users\vend\Documents\Visual Studio 2010\Projects\DevF\ValidDensk\ValidDenskWeb\Student.cs    38    28    ValidDenskWeb

HI Denisk

I could not found any upgrade version of Devforce.
Where I can find new version?

Thanks