private void textBox1_TextChanged(object sender, TextChangedEventArgs e)
{
// The function may be called, while the window has not been created completely.
// So we have to check, if the button can already be referenced.
if (SaveButton != null)
{
// Check if textBox1 is empty or
// textBox1.text is already in the list of saved strings.
if (string.IsNullOrWhiteSpace(textBox1.Text) ||
SavedTextBoxTexts.IndexOf(textBox1.Text) >= 0)
{
// Disable Button
SaveButton.IsEnabled = false;
if (WpfHelpers.Confirmation(resources.QuitWithoutSaving, resources.Changes))
{
}
}
else
{
// If textBox1.text has not been saved already
// or is an empty string or a string of whitespaces,
// enable the SaveButton (again).
SaveButton.IsEnabled = true;
}
}
}
// This is executed, when the other button has been clicked.
// The text in textBox1 will not be saved.
private void AnotherButton_Click(object sender, RoutedEventArgs e)
{
if (WpfHelpers.Confirmation(resources.QuitWithoutSaving, resources.Changes))
{
// Move to other page ...
}
}
private void textBox1_TextChanged(object sender, TextChangedEventArgs e)
{
if (SaveButton != null)
{
if (!string.IsNullOrWhiteSpace(textBox1.Text) ||
textBox1.Text == TextBoxDefaultValue)
{
SaveButton.IsEnabled = false;
if (WpfHelpers.Confirmation(resources.QuitWithoutSaving, resources.Changes))
{
}
}
}
}
private void textBox1_TextChanged(object sender, TextChangedEventArgs e)
{
if (SaveButton != null)
{
if (string.IsNullOrWhiteSpace(textBox1.Text) ||
SavedTextBoxTexts.IndexOf(textBox1.Text) >= 0)
{
SaveButton.IsEnabled = false;
if (WpfHelpers.Confirmation(resources.QuitWithoutSaving, resources.Changes))
{
}
}
else
{
SaveButton.IsEnabled = true;
}
}
}