public override ImageSource Select(DevExpress.Xpf.Grid.TreeList.TreeListRowData rowData)
{
FileSystemItemModelBase item = rowData.Row as FileSystemItemModelBase;
if (item == null)
{
return(null);
}
return(GetImageByFileItemType(item.ItemType, rowData.Node.IsExpanded, item.HasChildren()));
}
public override System.Windows.Media.ImageSource Select(DevExpress.Xpf.Grid.TreeList.TreeListRowData rowData)
{
Employee empl = (rowData.Row as Employee);
if (empl == null)
{
return(null);
}
return(GetImageByGroupName(empl.GroupName));
}
public override ImageSource Select(DevExpress.Xpf.Grid.TreeList.TreeListRowData rowData)
{
if (rowData == null || rowData.Row == null)
{
return(base.Select(rowData));
}
var type = rowData.Row.GetType();
if (!_getImageStrategies.ContainsKey(type))
{
return(base.Select(rowData));
}
return(_getImageStrategies[type](rowData.Row));
}
private void updateWidth()
{
if (!this.IsUseXlyRowIndent)
{
return;
}
this.Dispatcher.BeginInvoke(new EventHandler <EventArgs>((o, a) =>
{
try
{
double max_width = 0;
foreach (DevExpress.Xpf.Grid.RowControl row in this.HierarchyPanel.Children)
{
if (!row.IsVisible)
{
continue;
}
DevExpress.Xpf.Grid.TreeList.TreeListRowData rowData = row.DataContext as DevExpress.Xpf.Grid.TreeList.TreeListRowData;
object value = rowData.Row.GetType().GetProperty(this.XlyRowPropertyName).GetValue(rowData.Row);
FormattedText ft = new FormattedText(value.ToSafeString(),
System.Globalization.CultureInfo.CurrentUICulture,
System.Windows.FlowDirection.LeftToRight,
new Typeface((FontFamily)TextElement.GetFontFamily(this),
(FontStyle)TextElement.GetFontStyle(this),
(FontWeight)TextElement.GetFontWeight(this),
(FontStretch)TextElement.GetFontStretch(this)),
(double)TextElement.GetFontSize(this),
(Brush)TextElement.GetForeground(this));
double current_width = ft.Width + this.XlyRowIndent * rowData.Level + this.XlyRowIndentOffset;
if (max_width < current_width)
{
max_width = current_width;
}
}
this.treeList.Columns[0].Width = max_width;
}
catch (Exception ex)
{
LogHelper.Error("树展开时出错", ex);
}
}), System.Windows.Threading.DispatcherPriority.ApplicationIdle, new object[] { null, null });
}
public override ImageSource Select(DevExpress.Xpf.Grid.TreeList.TreeListRowData rowData)
{
var fileSystemItem = rowData.Row as FileSystemItem;
return(ImagesHelper.GetImage(fileSystemItem));
}
