public void Validate()
{
// Validate all validators on this form, ensuring first invalid
// control (in tab order) is selected
Control firstInTabOrder = null;
ValidatorCollection validators = ValidatorManager.GetValidators(_hostingForm);
if (null == validators)
{
return;
}
foreach (BaseValidator validator in validators)
{
// Validate control
validator.Validate();
// Record tab order if before current recorded tab order
if (!validator.IsValid)
{
if ((firstInTabOrder == null) || (firstInTabOrder.TabIndex > validator.ControlToValidate.TabIndex))
{
firstInTabOrder = validator.ControlToValidate;
}
}
}
// Select first invalid control in tab order, if any
if (firstInTabOrder != null)
{
firstInTabOrder.Focus();
if (firstInTabOrder is TextBoxBase)
{
TextBoxBase textbox = firstInTabOrder as TextBoxBase;
textbox.SelectionStart = 0;
textbox.SelectionLength = textbox.Text.Length;
}
}
}
private void Form_Closed(object sender, EventArgs e)
{
// DeRegister from ValidatorCollection
ValidatorManager.DeRegister(this, (Form)sender);
}
private void Form_Load(object sender, EventArgs e)
{
// Register with ValidatorManager
ValidatorManager.Register(this, (Form)sender);
}