private void ValidateDemoRow(object sender, GridRowValidationEventArgs e)
{
e.Handled = true;
ValidationInvoices row = e.Row as ValidationInvoices;
if (row != null)
{
e.IsValid = row.OrderDate < row.RequiredDate;
if (!e.IsValid)
{
e.ErrorContent = "\"Order Date\" must be precede \"Required Date\"";
}
}
}
private void grid_InvalidRowException(object sender, InvalidRowExceptionEventArgs e)
{
ValidationInvoices row = e.Row as ValidationInvoices;
if (row != null)
{
if (row.OrderDate >= row.RequiredDate)
{
e.ExceptionMode = ExceptionMode.DisplayError;
e.WindowCaption = "Error";
e.ErrorText = "\"Order Date\" must be precede \"Required Date\"";
return;
}
}
}
public GridValidationViewModel()
{
var fullInvoices = NWindData <Invoices> .DataSource;
Random rand = new Random();
foreach (Invoices inv in fullInvoices)
{
ValidationInvoices vi = new ValidationInvoices()
{
CustomerID = inv.CustomerID,
OrderDate = inv.OrderDate,
RequiredDate = inv.RequiredDate,
OrderID = rand.Next() % 7 == 0 ? -inv.OrderID : inv.OrderID,
ProductName = rand.Next() % 5 == 0 ? string.Empty : inv.ProductName,
Freight = rand.Next() % 11 == 0 ? -inv.Freight : inv.Freight,
};
Invoices.Add(vi);
}
}
