protected virtual void SubAreaControl_Leaving(object sender, WPFUserControl.AutoCompleteTextBoxControlEventArgs e)
{
if (SubjectLocationControl.ListBoxReadOnly)
{
// get the country / area / subarea names from UI
var countryName = CountryControl.GetCurrentText();
var areaName = AreaControl.GetCurrentText();
var subAreaName = SubAreaControl.GetCurrentText();
// get country object from UI
if (CountryControl.GetCurrentObject() is Country country)
{
// find the corresponding subject location (need to match country, area and subarea)
var subjectLocations = country.SubjectLocations.Where(c => c.Country.Name == countryName && c.Area.Name == areaName && c.SubArea.Name == subAreaName).ToList();
// valid subject Locations
if (subjectLocations != null)
{
// refresh control
RefreshControl(subjectLocations?.OfType <Location>().ToList(), SubjectLocationControl);
}
}
}
else
{
RefreshControl(_allSubjectLocations?.OfType <Location>().ToList(), SubjectLocationControl);
}
// take subarea name from subarea object (if in database) or from UI text
SetSubAreaDisplayItem(e.Object is SubArea subArea ? subArea.Name : SubAreaControl.GetCurrentText());
SubjectLocationControl.SetFocus();
}
protected virtual void CountryControl_Leaving(object sender, WPFUserControl.AutoCompleteTextBoxControlEventArgs e)
{
// if area control is ready only, only area of the assigned country can be selected
if (AreaControl.ListBoxReadOnly)
{
RefreshControl((e.Object as Country)?.Areas?.OfType <Location>().ToList(), AreaControl);
}
// otherwise all existing areas can be selected (or new onces can be entered)
else
{
RefreshControl(_allAreas.OfType <Location>().ToList(), AreaControl);
}
// clear old text
SubAreaControl.ClearText();
SubjectLocationControl.ClearText();
SubjectLocationLatitudeControl.Text = null;
SubjectLocationLongitudeControl.Text = null;
// derived class can set the view model property
// take country name from country object (if in database) or from UI text
SetCountryDisplayItem(e.Object as Country != null ? (e.Object as Country).Name : CountryControl.GetCurrentText());
// set focus to the respective text box
AreaControl.SetFocus();
}
protected virtual void SubjectLocationControl_Leaving(object sender, WPFUserControl.AutoCompleteTextBoxControlEventArgs e)
{
// take subject location name from subject location object (if in database) or from UI text
SetSubjectLocationDisplayItem(e.Object is SubjectLocation subjectLocation ? subjectLocation.Name : SubjectLocationControl.GetCurrentText());
}