public bool UpdateErrorProviderTextForProperty(string errorMessage, string propertyName)
{
if (string.IsNullOrEmpty(propertyName))
{
throw new ArgumentNullException("propertyName");
}
if (string.IsNullOrEmpty(errorMessage))
{
throw new ArgumentNullException("errorMessage");
}
bool result = false;
Binding bindingGivenPropertyName = this.GetBindingGivenPropertyName(propertyName);
if (bindingGivenPropertyName != null)
{
ExchangeErrorProvider exchangeErrorProvider = this.enabledBindingSources[(BindingSource)bindingGivenPropertyName.DataSource];
StringBuilder stringBuilder = new StringBuilder(exchangeErrorProvider.GetError(bindingGivenPropertyName.Control));
if (stringBuilder.Length > 0)
{
stringBuilder.AppendLine();
}
stringBuilder.Append(errorMessage);
Control errorProviderAnchor = InputValidationProvider.GetErrorProviderAnchor(bindingGivenPropertyName.Control);
exchangeErrorProvider.SetError(errorProviderAnchor, stringBuilder.ToString());
result = true;
}
return(result);
}
private void BindingCompleted(object sender, BindingCompleteEventArgs e)
{
Control errorProviderAnchor = InputValidationProvider.GetErrorProviderAnchor(e.Binding.Control);
if (e.BindingCompleteState != BindingCompleteState.Success)
{
if (e.BindingCompleteContext == BindingCompleteContext.DataSourceUpdate)
{
StrongTypeException ex = e.Exception as StrongTypeException;
if ((ex == null || ex.IsTargetProperty) && e.Binding.Control.Enabled)
{
this.GetErrorProvider((BindingSource)e.Binding.DataSource).SetError(errorProviderAnchor, e.ErrorText);
this.AddErrorBindingForControl(e.Binding);
}
e.Binding.ControlUpdateMode = ControlUpdateMode.Never;
}
}
else
{
e.Binding.ControlUpdateMode = ControlUpdateMode.OnPropertyChanged;
if (this.RemoveSuccessfulBindingForControl(e.Binding))
{
this.GetErrorProvider((BindingSource)e.Binding.DataSource).SetError(errorProviderAnchor, string.Empty);
}
}
e.Cancel = false;
this.SetModifiedBindingMembers(e);
}
private void RaiseDataBoundPropertyChanged(object sender, EventArgs e)
{
Control control = sender as Control;
if (control != null)
{
foreach (ExchangeErrorProvider exchangeErrorProvider in this.enabledBindingSources.Values)
{
Control errorProviderAnchor = InputValidationProvider.GetErrorProviderAnchor(control);
exchangeErrorProvider.SetError(errorProviderAnchor, "");
}
}
EventHandler eventHandler = (EventHandler)base.Events[InputValidationProvider.EventDataBoundPropertyChanged];
if (eventHandler != null)
{
eventHandler(this, e);
}
}
private void Control_EnabledChanged(object sender, EventArgs e)
{
Control control = (Control)sender;
if (!control.Enabled)
{
foreach (object obj in control.DataBindings)
{
Binding binding = (Binding)obj;
BindingSource bindingSource = binding.DataSource as BindingSource;
if (bindingSource != null)
{
ExchangeErrorProvider errorProvider = this.GetErrorProvider(bindingSource);
if (errorProvider != null)
{
Control errorProviderAnchor = InputValidationProvider.GetErrorProviderAnchor(control);
errorProvider.SetError(errorProviderAnchor, string.Empty);
}
}
}
}
}
