/// <summary>
/// ReorderBehavior Reordering Event Handler - Adjusts Entity Order and GroupPreferenceId of entities after reordering
/// </summary>
/// <param name="sender">Sender</param>
/// <param name="e">ReorderingEventArgs</param>
private void ReorderBehavior_Reordering(object sender, ReorderingEventArgs e)
{
//if there are no dragged Items reordering is redundant
if (e.DraggedItems.Count().Equals(0))
{
return;
}
#region Get Dragged Element
//dragged Element
MarketSnapshotPerformanceData draggedElement = e.DraggedItems.FirstOrDefault() as MarketSnapshotPerformanceData;
//null Exception Handling
if (draggedElement == null)
{
return;
}
#endregion
#region Get Data Context
//collection of MorningSnapshotData binded to the grid
List <MarketSnapshotPerformanceData> dataContext = (e.SourceGrid.ItemsSource as ObservableCollection <MarketSnapshotPerformanceData>).ToList();
//null Exception Handling
if (dataContext == null)
{
return;
}
#endregion
#region Get Drag Drop Details
//drag drop Indexes
int dragIndex = dataContext.IndexOf(draggedElement);
int dropIndex = e.DropIndex;
//true if insertion is done after an element and False if it's done before the element
bool isDropPositionAfter = DragDropPosition.Value == DropPosition.After;
//check if the drop Index exceed the Count of List - item dropped after the last element
bool isDropIndexExceedingCount = dropIndex >= dataContext.Count;
#endregion
#region Drag Location Parameters
MarketSnapshotPreference dragBenchmarkDetails = new MarketSnapshotPreference()
{
EntityName = dataContext.ElementAt(dragIndex).MarketSnapshotPreferenceInfo.EntityName,
EntityReturnType = dataContext.ElementAt(dragIndex).MarketSnapshotPreferenceInfo.EntityReturnType,
EntityOrder = dataContext.ElementAt(dragIndex).MarketSnapshotPreferenceInfo.EntityOrder,
GroupName = dataContext.ElementAt(dragIndex).MarketSnapshotPreferenceInfo.GroupName,
GroupPreferenceID = dataContext.ElementAt(dragIndex).MarketSnapshotPreferenceInfo.GroupPreferenceID
};
#endregion
#region Drop Location Parameters
MarketSnapshotPreference dropBenchmarkDetails = new MarketSnapshotPreference()
{
EntityName = isDropIndexExceedingCount ? null : dataContext.ElementAt(dropIndex).MarketSnapshotPreferenceInfo.EntityName,
EntityReturnType = isDropIndexExceedingCount ? null : dataContext.ElementAt(e.DropIndex).MarketSnapshotPreferenceInfo.EntityReturnType,
EntityOrder = isDropIndexExceedingCount
? dataContext.ElementAt(dropIndex - 1).MarketSnapshotPreferenceInfo.EntityOrder + 1
: dataContext.ElementAt(dropIndex).MarketSnapshotPreferenceInfo.EntityOrder,
GroupName = isDropIndexExceedingCount
? dataContext.ElementAt(dropIndex - 1).MarketSnapshotPreferenceInfo.GroupName
: dataContext.ElementAt(dropIndex).MarketSnapshotPreferenceInfo.GroupName,
GroupPreferenceID = isDropIndexExceedingCount
? dataContext.ElementAt(dropIndex - 1).MarketSnapshotPreferenceInfo.GroupPreferenceID
: dataContext.ElementAt(dropIndex).MarketSnapshotPreferenceInfo.GroupPreferenceID
};
#endregion
#region Managing discrepancies in drop location
//if drop location is after the last element of same or another group the behavior picks the next element nevertheless
bool isDragdropGroupSame = dragBenchmarkDetails.GroupPreferenceID == dropBenchmarkDetails.GroupPreferenceID;
bool isDropEntityMisread = dropBenchmarkDetails.EntityOrder == 1 && isDropPositionAfter;
bool isDropLastOfSameGroup = GetLastGroupPreferenceId(dataContext, dropBenchmarkDetails.GroupPreferenceID)
== dragBenchmarkDetails.GroupPreferenceID && isDropEntityMisread;
bool isDropLastOfOtherGroup = (!isDropLastOfSameGroup) && isDropEntityMisread;
#endregion
bool isDragWithinGroup = isDragdropGroupSame ? (!isDropLastOfOtherGroup) : isDropLastOfSameGroup;
if (isDragWithinGroup)
{
UpdateParametersForSameGroupReordering(dataContext, dragBenchmarkDetails, dropBenchmarkDetails, isDropLastOfSameGroup);
}
else
{
UpdateParametersForDiffGroupReordering(dataContext, dragBenchmarkDetails, dropBenchmarkDetails, isDropLastOfOtherGroup);
}
}
/// <summary>
/// ReorderBehavior Reordering Event Handler - Adjusts Entity Order and GroupPreferenceId of entities after reordering
/// </summary>
/// <param name="sender">Sender</param>
/// <param name="e">ReorderingEventArgs</param>
private void ReorderBehavior_Reordering(object sender, ReorderingEventArgs e)
{
// if there are no dragged Items reordering is redundant
if (e.DraggedItems.Count().Equals(0))
{
return;
}
#region Get Dragged Element
// dragged Element
CSTUserPreferenceInfo draggedElement = e.DraggedItems.FirstOrDefault() as CSTUserPreferenceInfo;
// null Exception Handling
if (draggedElement == null)
{
return;
}
#endregion
#region Get Data Context
// collection of CSTUserPreferenceInfo binded to the grid
List <CSTUserPreferenceInfo> dataContext = (e.SourceGrid.ItemsSource as ObservableCollection <CSTUserPreferenceInfo>).ToList();
// null Exception Handling
if (dataContext == null)
{
return;
}
#endregion
#region Get Drag Drop Details
// drag Drop Indexes
int dragIndex = dataContext.IndexOf(draggedElement);
int dropIndex = e.DropIndex;
// true if insertion is done after an element and False if it's done before the element
bool dropPositionIsAfter = DragDropPosition.Value == DropPosition.After;
// check if the drop Index exceed the Count of List - item dropped after the last element
bool dropIndexExceedsCount = dropIndex >= dataContext.Count;
#endregion
#region Drag Location Parameters
CSTUserPreferenceInfo dragUserPreferenceInfo = new CSTUserPreferenceInfo()
{
ScreeningId = dataContext.ElementAt(dragIndex).ScreeningId,
DataDescription = dataContext.ElementAt(dragIndex).DataDescription,
UserName = UserSession.SessionManager.SESSION.UserName,
ListName = dataContext.ElementAt(dragIndex).ListName,
Accessibility = dataContext.ElementAt(dragIndex).Accessibility,
DataPointsOrder = dataContext.ElementAt(dragIndex).DataPointsOrder,
TableColumn = dataContext.ElementAt(dragIndex).TableColumn
};
#endregion
#region Drop Location Parameters
CSTUserPreferenceInfo dropUserPreferenceInfo = new CSTUserPreferenceInfo()
{
ScreeningId = dropIndexExceedsCount ? null : dataContext.ElementAt(dropIndex).ScreeningId,
DataDescription = dropIndexExceedsCount ? null : dataContext.ElementAt(e.DropIndex).DataDescription,
UserName = UserSession.SessionManager.SESSION.UserName,
ListName = dataContext.ElementAt(dragIndex).ListName,
Accessibility = dataContext.ElementAt(dragIndex).Accessibility,
DataPointsOrder = dropIndexExceedsCount ? dataContext.ElementAt(dropIndex - 1).DataPointsOrder
: dataContext.ElementAt(dropIndex).DataPointsOrder,
TableColumn = dataContext.ElementAt(dragIndex).TableColumn
};
#endregion
// update the data points order of list
UpdateParametersForSameGroupReordering(dataContext, dragUserPreferenceInfo, dropUserPreferenceInfo, dropIndexExceedsCount);
}
private void SignalFilters_ChildReordered(object sender, ReorderingEventArgs e)
{
Root.IsDataModified = true;
}