private static void DatePickerOnDateValidationError(object sender, DatePickerDateValidationErrorEventArgs e)
{
var datePicker = sender as DatePicker;
if (datePicker != null)
{
var text = e.Text;
DateTime dateTime;
if (DateTime.TryParseExact(text, "yyyyMMdd", CultureInfo.CurrentUICulture, DateTimeStyles.None, out dateTime))
{
datePicker.SelectedDate = dateTime;
}
}
}
protected override void OnDateValidationError( DatePickerDateValidationErrorEventArgs e )
{
base.OnDateValidationError( e );
// This validation error may have been raised by the "CommitInput()" call.
// If this is the case, use the _commitException member.
if( InputValidationError != null )
{
InputValidationErrorEventArgs args = ( _commitException != null )
? new InputValidationErrorEventArgs( _commitException )
: new InputValidationErrorEventArgs( e.Exception );
InputValidationError( this, args );
if( args.ThrowException )
{
throw args.Exception;
}
}
}
// iT SHOULD RETURN NULL IF THE STRING IS NOT VALID, RETURN THE DATETIME VALUE IF IT IS VALID
/// <summary>
/// Input text is parsed in the correct format and changed into a DateTime object.
/// If the text can not be parsed TextParseError Event is thrown.
/// </summary>
private DateTime?ParseText(string text)
{
DateTime newSelectedDate;
// TryParse is not used in order to be able to pass the exception to the TextParseError event
try
{
newSelectedDate = DateTime.Parse(text, DateTimeHelper.GetDateFormat(DateTimeHelper.GetCulture(this)));
if (Calendar.IsValidDateSelection(this._calendar, newSelectedDate))
{
return(newSelectedDate);
}
else
{
DatePickerDateValidationErrorEventArgs dateValidationError = new DatePickerDateValidationErrorEventArgs(new ArgumentOutOfRangeException("text", SR.Get(SRID.Calendar_OnSelectedDateChanged_InvalidValue)), text);
OnDateValidationError(dateValidationError);
if (dateValidationError.ThrowException)
{
throw dateValidationError.Exception;
}
}
}
catch (FormatException ex)
{
DatePickerDateValidationErrorEventArgs textParseError = new DatePickerDateValidationErrorEventArgs(ex, text);
OnDateValidationError(textParseError);
if (textParseError.ThrowException && textParseError.Exception != null)
{
throw textParseError.Exception;
}
}
return(null);
}
private void DatePicker_DateValidationError(object sender, DatePickerDateValidationErrorEventArgs e)
{
lblError.Text = "'" + e.Text +
"' is not a valid value because " + e.Exception.Message;
}
/// <summary>
/// Issue: The OOB DatePicker does not allow re-setting the picker to a null-value. Erasing the complete
/// contents of the textbox does not cause any validation errors wherein you would have re-setted the SelectedDate to null
/// </summary>
/// <param name="sender"></param>
/// <param name="e"></param>
private void dtEndDate_DateValidationError(object sender, DatePickerDateValidationErrorEventArgs e)
{
}
/// <summary>
/// Raises the DateValidationError event.
/// </summary>
/// <param name="e">A DatePickerDateValidationErrorEventArgs that contains the event data.</param>
protected virtual void OnDateValidationError(DatePickerDateValidationErrorEventArgs e) {
var handler = DateValidationError;
if (handler != null)
handler(this, e);
}
// IT SHOULD RETURN NULL IF THE STRING IS NOT VALID, RETURN THE DATETIME VALUE IF IT IS VALID
/// <summary>
/// Input text is parsed in the correct format and changed into a DateTime object.
/// If the text can not be parsed TextParseError Event is thrown.
/// </summary>
private DateTime? ParseText(string text) {
// TryParse is not used in order to be able to pass the exception to the TextParseError event
try {
var newSelectedDate = DateTime.Parse(text, Engine.GetDateFormat(Engine.GetCulture(this)));
if (Calendar.IsValidDateSelection(_calendar, newSelectedDate)) {
return newSelectedDate;
}
var dateValidationError = new DatePickerDateValidationErrorEventArgs(new ArgumentOutOfRangeException("text"), text);
OnDateValidationError(dateValidationError);
if (dateValidationError.ThrowException)
throw dateValidationError.Exception;
} catch (FormatException ex) {
var textParseError = new DatePickerDateValidationErrorEventArgs(ex, text);
OnDateValidationError(textParseError);
if (textParseError.ThrowException && textParseError.Exception != null)
throw textParseError.Exception;
}
return null;
}
/// <summary>
/// Raises the
/// <see cref="E:System.Windows.Controls.DatePicker.DateValidationError" />
/// event.
/// </summary>
/// <param name="e">
/// A
/// <see cref="T:System.Windows.Controls.DatePickerDateValidationErrorEventArgs" />
/// that contains the event data.
/// </param>
protected virtual void OnDateValidationError(DatePickerDateValidationErrorEventArgs e)
{
EventHandler<DatePickerDateValidationErrorEventArgs> handler = this.DateValidationError;
if (handler != null)
{
handler(this, e);
}
}
/// <summary>
/// Input text is parsed in the correct format and changed into a
/// DateTime object. If the text can not be parsed TextParseError Event
/// is thrown.
/// </summary>
/// <param name="text">Inherited code: Requires comment.</param>
/// <returns>
/// IT SHOULD RETURN NULL IF THE STRING IS NOT VALID, RETURN THE
/// DATETIME VALUE IF IT IS VALID.
/// </returns>
private DateTime? ParseText(string text)
{
DateTime newSelectedDate;
// TryParse is not used in order to be able to pass the exception to
// the TextParseError event
try
{
newSelectedDate = DateTime.Parse(text, DateTimeHelper.GetCurrentDateFormat());
if (Calendar.IsValidDateSelection(this._calendar, newSelectedDate))
{
return newSelectedDate;
}
else
{
DatePickerDateValidationErrorEventArgs dateValidationError = new DatePickerDateValidationErrorEventArgs(new ArgumentOutOfRangeException("text", System.Windows.Controls.Properties.Resources.Calendar_OnSelectedDateChanged_InvalidValue), text);
OnDateValidationError(dateValidationError);
if (dateValidationError.ThrowException)
{
throw dateValidationError.Exception;
}
}
}
catch (FormatException ex)
{
DatePickerDateValidationErrorEventArgs textParseError = new DatePickerDateValidationErrorEventArgs(ex, text);
OnDateValidationError(textParseError);
if (textParseError.ThrowException)
{
throw textParseError.Exception;
}
}
return null;
}
private void DatePicker_DateValidationError_1(object sender, DatePickerDateValidationErrorEventArgs e)
{
e.ThrowException = false;
}
protected virtual new void OnDateValidationError(DatePickerDateValidationErrorEventArgs e)
{
}
protected virtual new void OnDateValidationError(DatePickerDateValidationErrorEventArgs e)
{
}
