private void InnerControlOnDrop(object theSender, DragDropUserControl.DragDropEventArgs theE)
{
var aSender = theSender as DragDropUserControl;
if (aSender == null)
{
return;
}
var aRowIndexFromMouseDown = theE.RowIndexFromMouseDown;
var aRowIndexOfItemUnderMouseToDrop = theE.RowIndexOfItemUnderMouseToDrop;
var aColumnIndexFromMouseDown = theE.ColumnIndexFromMouseDown;
var aColumnIndexOfItemUnderMouseToDrop = theE.ColumnIndexOfItemUnderMouseToDrop;
if (aRowIndexFromMouseDown == 0 || aRowIndexOfItemUnderMouseToDrop == 0 || aColumnIndexFromMouseDown == 0 || aColumnIndexOfItemUnderMouseToDrop == 0)
{
aSender.AllowThisOneColumnDragDrop = false;
aSender.AllowThisOneRowDragDrop = false;
}
if (aRowIndexFromMouseDown <= parameters.RowLabels.Count && aRowIndexOfItemUnderMouseToDrop > parameters.RowLabels.Count)
{
aSender.AllowThisOneRowDragDrop = false;
}
if (aRowIndexFromMouseDown > parameters.RowLabels.Count && aRowIndexOfItemUnderMouseToDrop <= parameters.RowLabels.Count)
{
aSender.AllowThisOneRowDragDrop = false;
}
if (aColumnIndexFromMouseDown <= parameters.ColumnLabels.Count && aColumnIndexOfItemUnderMouseToDrop > parameters.ColumnLabels.Count)
{
aSender.AllowThisOneColumnDragDrop = false;
}
if (aColumnIndexFromMouseDown > parameters.ColumnLabels.Count && aColumnIndexOfItemUnderMouseToDrop <= parameters.ColumnLabels.Count)
{
aSender.AllowThisOneColumnDragDrop = false;
}
if (aRowIndexFromMouseDown > activeRowCount || aRowIndexOfItemUnderMouseToDrop > activeRowCount)
{
aSender.AllowThisOneRowDragDrop = false;
}
if (aRowIndexFromMouseDown == aRowIndexOfItemUnderMouseToDrop)
{
aSender.AllowThisOneRowDragDrop = false;
}
if (aColumnIndexFromMouseDown == aColumnIndexOfItemUnderMouseToDrop)
{
aSender.AllowThisOneColumnDragDrop = false;
}
if (ReOrdered != null)
{
TriggerReOrder(aRowIndexFromMouseDown, aRowIndexOfItemUnderMouseToDrop, aColumnIndexFromMouseDown, aColumnIndexOfItemUnderMouseToDrop, aSender);
}
}
private void TriggerReOrder(int theRowIndexFromMouseDown, int theRowIndexOfItemUnderMouseToDrop, int theColumnIndexFromMouseDown, int theColumnIndexOfItemUnderMouseToDrop, DragDropUserControl theSender)
{
if (theSender.AllowThisOneRowDragDrop && theRowIndexFromMouseDown <= parameters.RowLabels.Count &&
theRowIndexOfItemUnderMouseToDrop <= parameters.RowLabels.Count)
{
if (theRowIndexFromMouseDown > theRowIndexOfItemUnderMouseToDrop)
{
var aSwapValue = rowLabels[theRowIndexFromMouseDown];
int aI = theRowIndexFromMouseDown;
for (; aI > theRowIndexOfItemUnderMouseToDrop; aI--)
{
rowLabels[aI] = rowLabels[aI - 1];
}
rowLabels[aI] = aSwapValue;
}
else
{
var aSwapValue = rowLabels[theRowIndexFromMouseDown];
int aI = theRowIndexFromMouseDown;
for (; aI < theRowIndexOfItemUnderMouseToDrop; aI++)
{
rowLabels[aI] = rowLabels[aI + 1];
}
rowLabels[aI] = aSwapValue;
}
ReOrderEventArgs aE = new ReOrderEventArgs(rowLabels.Values.ToList(), columnLabels.Values.ToList());
ReOrdered(this, aE);
}
else if (theSender.AllowThisOneColumnDragDrop && theColumnIndexFromMouseDown <= parameters.ColumnLabels.Count &&
theColumnIndexOfItemUnderMouseToDrop <= parameters.ColumnLabels.Count)
{
if (theColumnIndexFromMouseDown > theColumnIndexOfItemUnderMouseToDrop)
{
var aSwapValue = rowLabels[theColumnIndexFromMouseDown];
int aI = theColumnIndexFromMouseDown;
for (; aI > theRowIndexOfItemUnderMouseToDrop; aI--)
{
rowLabels[aI] = rowLabels[aI - 1];
}
rowLabels[aI] = aSwapValue;
}
else
{
var aSwapValue = rowLabels[theColumnIndexFromMouseDown];
int aI = theColumnIndexFromMouseDown;
for (; aI < theColumnIndexOfItemUnderMouseToDrop; aI++)
{
rowLabels[aI] = rowLabels[aI + 1];
}
rowLabels[aI] = aSwapValue;
}
ReOrderEventArgs aE = new ReOrderEventArgs(rowLabels.Values.ToList(), columnLabels.Values.ToList());
ReOrdered(this, aE);
}
}
private void InitializeInnerControl()
{
DataTable aDataTable = new DataTable();
int aColumnCount = parameters.RowLabels.Aggregate(1, (current, aLabel) => current * parameters.Data[aLabel].Count);
aColumnCount += parameters.ColumnLabels.Count;
var aColumnHeaders = CreateColumnHeaders(aColumnCount);
foreach (var aHeader in aColumnHeaders)
{
if (!aDataTable.Columns.Contains(aHeader))
{
aDataTable.Columns.Add(aHeader);
}
}
List<List<object>> aRowLabelsData = CreateHeadersData(parameters.RowLabels);
for (int aI = 0; aI < parameters.RowLabels.Count; aI++)
{
List<object> aRow = new List<object>();
for (int aCount = 0; aCount < parameters.ColumnLabels.Count; aCount++)
{
aRow.Add(string.Empty);
}
foreach (var aSubList in aRowLabelsData)
{
aRow.Add(aSubList[aI]);
}
aDataTable.Rows.Add(aRow.ToArray());
}
List<List<object>> aColumnLabelsData = CreateHeadersData(parameters.ColumnLabels);
foreach (var aSubList in aColumnLabelsData)
{
aDataTable.Rows.Add(aSubList.ToArray());
}
activeRowCount = aDataTable.Rows.Count;
for (int aI = activeRowCount + 1; aI < TOTAL_ROW; aI++)
{
aDataTable.Rows.Add(new List<object>().ToArray());
}
innerControl = new DragDropUserControl(aDataTable);
innerControl.OnDrop += InnerControlOnDrop;
ChangeInerControlStyle();
}
