private bool IsModified(CITYCOD record)
{
//Type-specific routine that takes into account relationships that should also be considered
//when deciding if there are unsaved changes. The entity properties also return true if the
//record is new or deleted.
if (record == null)
{
return(false);
}
return(record.IsModified(_context) ||
record.SupplierCity.IsModified(_context) ||
record.GeoCode.IsModified(_context)); //Mapping
}
void ClearBindings()
{
_ignoreLeaveRow = true;
_ignorePositionChange = true;
_selectedRecord = null;
BindingSourceSupplierCity.Clear();
SetReadOnly(true);
BarButtonItemDelete.Enabled = false;
BarButtonItemSave.Enabled = false;
BindingSource.DataSource = typeof(CITYCOD);
ClearMapData(); //Mapping
_ignoreLeaveRow = false;
_ignorePositionChange = false;
}
private void BarButtonItemNew_ItemClick(object sender, DevExpress.XtraBars.ItemClickEventArgs e)
{
_ignoreLeaveRow = true; //so that when the grid row changes it doesn't try to save again
if (SaveRecord(true))
{
//For some reason when there is no existing record in the binding source the Add method does not
//trigger the CurrentChanged event, but AddNew does so use that instead
_selectedRecord = (CITYCOD)BindingSource.AddNew();
//With the instant feedback data source, the new row is not immediately added to the grid, so move
//the focused row to the filter row just so that no other existing row is visually highlighted
GridViewLookup.FocusedRowHandle = DevExpress.Data.BaseListSourceDataController.FilterRow;
SetReadOnlyKeyFields(false);
TextEditCode.Focus();
SetReadOnly(false);
}
ErrorProvider.Clear();
_ignoreLeaveRow = false;
}
void SetBindings()
{
if (BindingSource.Current == null)
{
ClearBindings();
}
else
{
_selectedRecord = ((CITYCOD)BindingSource.Current);
LoadAndBindSupplierCities();
SetReadOnly(false);
SetReadOnlyKeyFields(true);
BarButtonItemDelete.Enabled = true;
BarButtonItemSave.Enabled = true;
ShowMapData(_selectedRecord); //Mapping
}
ErrorProvider.Clear();
}
private void ShowMapData(CITYCOD record)
{
GeoCode geoCode = record?.GeoCode ?? new GeoCode();
AddOrMovePushpin(geoCode);
//If a bounding box has been given, then use it
if (geoCode.NorthLat != 0)
{
var topLeft = new GeoPoint(geoCode.NorthLat, geoCode.WestLong);
var bottomRight = new GeoPoint(geoCode.SouthLat, geoCode.EastLong);
MapControl.ZoomToRegion(topLeft, bottomRight, 0);
}
else
{
//If there there is no bounding box, zoom all the way out if this is a new record, otherwise go to the
//default zoom level
MapControl.ZoomLevel = (geoCode.GeoCodeId == 0) ? 1 : 13;
}
}
private void GridViewLookup_FocusedRowChanged(object sender, DevExpress.XtraGrid.Views.Base.FocusedRowChangedEventArgs e)
{
if (!_ignoreLeaveRow)
{
GridView view = (GridView)sender;
object row = view.GetRow(e.FocusedRowHandle);
if (row != null && row.GetType() != typeof(DevExpress.Data.NotLoadedObject))
{
ReadonlyThreadSafeProxyForObjectFromAnotherThread proxy = (ReadonlyThreadSafeProxyForObjectFromAnotherThread)view.GetRow(e.FocusedRowHandle);
CITYCOD record = (CITYCOD)proxy.OriginalRow;
BindingSource.DataSource = _context.CITYCOD.Where(c => c.CODE == record.CODE)
.Include(c => c.GeoCode);
}
else
{
ClearBindings();
}
}
}
