GridViewEventResult IGridViewEventListener.PreProcessEvent(
GridViewEvent eventData)
{
if (eventData.Info.Id != KnownEvents.CurrentChanged)
{
return((GridViewEventResult)null);
}
if (eventData.Originator is RadDataView <GridViewRowInfo> )
{
if (this.IsInEditMode)
{
return(new GridViewEventResult(true, true));
}
return((GridViewEventResult)null);
}
PositionChangingEventArgs args = new PositionChangingEventArgs(eventData.Arguments[0] as GridViewRowInfo, eventData.Arguments[1] as GridViewColumn);
this.OnPositionChanging(args);
if (args.Cancel)
{
return(new GridViewEventResult(false, true));
}
return((GridViewEventResult)null);
}
protected virtual void OnPositionChanging(PositionChangingEventArgs args)
{
GridViewRowInfo currentRow = this.gridViewElement.Template.CurrentRow;
GridViewColumn currentColumn = currentRow?.ViewTemplate.CurrentColumn;
this.oldRowIsNewRow = false;
if (this.IsInEditMode)
{
if (!this.endEditCore)
{
args.Cancel = !this.CloseEditor();
}
this.wasInEditMode = this.GridViewElement.BeginEditMode != RadGridViewBeginEditMode.BeginEditProgrammatically;
}
else
{
object oldValue = currentRow == null || currentColumn == null ? (object)null : currentRow[currentColumn];
object newValue = oldValue;
if (this.RaiseCellValidatingEvent(currentRow, currentColumn, newValue, oldValue))
{
args.Cancel = true;
return;
}
this.RaiseCellValidatedEvent(currentRow, currentColumn, newValue);
}
if (!args.Cancel && args.Row != currentRow)
{
args.Cancel = !this.FinishEditingOperation();
this.oldRowIsNewRow = currentRow is GridViewNewRowInfo;
}
if (!args.Cancel)
{
return;
}
this.wasInEditMode = false;
}
