void HandleSort(int column)
{
if (column > -1 && this.AllowSorting && this.Columns[column].AllowSorting)
{
// get view
var view = _view as ICollectionViewEx;
var args = new SortingColumnEventArgs(this.Columns[column]);
if (this.SortingColumn != null)
{
SortingColumn(this, args);
}
if (view != null)
{
// get column to sort
var col = this.Columns[column];
var direction = ListSortDirection.Ascending;
var sds = view.SortDescriptions;
// get property to sort on
var pn = col.BoundPropertyName;
if (!string.IsNullOrEmpty(pn))
{
if (!args.Cancel)
{
// apply new sort
try
{
// if already sorted, reverse direction
foreach (var sd in sds)
{
if (sd.PropertyName == pn && sd.Direction == ListSortDirection.Ascending)
{
direction = ListSortDirection.Descending;
break;
}
}
using (view.DeferRefresh())
{
sds.Clear();
sds.Add(new SortDescription(pn, direction));
}
}
catch
{
}
}
else
{
if (this.SortMode == SortMode.Manual)
{
// if already sorted, reverse direction
foreach (var sd in ManualSortDescriptions)
{
if (sd.PropertyName == pn && sd.Direction == ListSortDirection.Ascending)
{
direction = ListSortDirection.Descending;
break;
}
}
ManualSortDescriptions.Clear();
ManualSortDescriptions.Add(new SortDescription(pn, direction));
this.Invalidate();
}
}
}
else
{
if (this.SortMode == SortMode.Manual)
{
var name = this.Columns[column].ColumnName + this.Columns[column].ItemIndex;
// if already sorted, reverse direction
foreach (var sd in ManualSortDescriptions)
{
if (sd.PropertyName == name && sd.Direction == ListSortDirection.Ascending)
{
direction = ListSortDirection.Descending;
break;
}
}
ManualSortDescriptions.Clear();
ManualSortDescriptions.Add(new SortDescription(name, direction));
this.Invalidate();
}
}
}
}
}
void HandleSort(int column)
{
if (column > -1 && this.AllowSorting && this.Columns[column].AllowSorting)
{
// get view
var view = _view as ICollectionViewEx;
var args = new SortingColumnEventArgs(this.Columns[column]);
if (this.SortingColumn != null)
{
SortingColumn(this, args);
}
if (view != null)
{
// get column to sort
var col = this.Columns[column];
var direction = ListSortDirection.Ascending;
var sds = view.SortDescriptions;
// get property to sort on
var pn = col.BoundPropertyName;
if (!string.IsNullOrEmpty(pn))
{
if (!args.Cancel)
{
// apply new sort
try
{
// if already sorted, reverse direction
foreach (var sd in sds)
{
if (sd.PropertyName == pn && sd.Direction == ListSortDirection.Ascending)
{
direction = ListSortDirection.Descending;
break;
}
}
using (view.DeferRefresh())
{
sds.Clear();
sds.Add(new SortDescription(pn, direction));
}
}
catch
{
}
}
else
{
if (this.SortMode == SortMode.Manual)
{
// if already sorted, reverse direction
foreach (var sd in ManualSortDescriptions)
{
if (sd.PropertyName == pn && sd.Direction == ListSortDirection.Ascending)
{
direction = ListSortDirection.Descending;
break;
}
}
ManualSortDescriptions.Clear();
ManualSortDescriptions.Add(new SortDescription(pn, direction));
this.Invalidate();
}
}
}
else
{
if (this.SortMode == SortMode.Manual)
{
var name = this.Columns[column].ColumnName + this.Columns[column].ItemIndex;
// if already sorted, reverse direction
foreach (var sd in ManualSortDescriptions)
{
if (sd.PropertyName == name && sd.Direction == ListSortDirection.Ascending)
{
direction = ListSortDirection.Descending;
break;
}
}
ManualSortDescriptions.Clear();
ManualSortDescriptions.Add(new SortDescription(name, direction));
this.Invalidate();
}
}
}
}
}
