/// <summary>
/// 格式化TreeList样式和属性
/// </summary>
/// <param name="tree">TreeList</param>
/// <param name="type"></param>
/// <param name="showColumns">显示列头</param>
/// <param name="showIndicator">显示指示列</param>
public static void TreeFormat(TreeList tree, NodeIconType type = NodeIconType.General, bool showColumns = false, bool showIndicator = false)
{
// 使列标题文字居中显示
foreach (TreeListColumn column in tree.Columns)
{
if (column.FieldName == "index")
{
column.SortOrder = SortOrder.Ascending;
}
column.OptionsColumn.AllowSort = false;
column.AppearanceHeader.TextOptions.HAlignment = HorzAlignment.Center;
}
// 格式化TreeList属性
tree.BorderStyle = BorderStyles.NoBorder;
tree.KeyFieldName = "id";
tree.ParentFieldName = "parentId";
tree.OptionsBehavior.Editable = false;
tree.OptionsView.ShowColumns = showColumns;
tree.OptionsView.ShowIndicator = showIndicator;
tree.OptionsView.ShowHorzLines = false;
tree.OptionsView.ShowVertLines = false;
tree.RowHeight = 23;
tree.VertScrollVisibility = DevExpress.XtraTreeList.ScrollVisibility.Always;
CustomDrawNodeImages(tree, type);
}
/// <summary>
/// 注册TreeList控件重绘节点图标事件
/// </summary>
/// <param name="tree">TreeList</param>
/// <param name="type">图标类型</param>
private static void CustomDrawNodeImages(TreeList tree, NodeIconType type)
{
tree.CustomDrawNodeImages += (sender, args) =>
{
switch (type)
{
case NodeIconType.General:
var node = args.Node;
args.SelectImageIndex = node.Level == 0 || node.HasChildren ? (node.Expanded ? 2 : 1) : 0;
break;
case NodeIconType.Category:
args.SelectImageIndex = args.Node.Expanded ? 2 : 1;
break;
case NodeIconType.NodeType:
args.SelectImageIndex = (int)args.Node.GetValue("nodeType");
break;
case NodeIconType.Organization:
args.SelectImageIndex = (int)args.Node.GetValue("nodeType") - 1;
break;
case NodeIconType.OnlyLevel0:
if (args.Node.Level > 0)
{
return;
}
args.SelectImageIndex = (int)args.Node.GetValue("nodeType");
break;
case NodeIconType.Custom:
break;
default:
throw new ArgumentOutOfRangeException(nameof(type), type, null);
}
};
}
/// <summary>
/// 初始化TreeListLookUpEdit
/// </summary>
/// <param name="control">TreeListLookUpEdit</param>
/// <param name="list">MemberSelect集合</param>
/// <param name="type">图标类型</param>
public static void InitTreeListLookUpEdit(TreeListLookUpEdit control, List <TreeLookUpMember> list, NodeIconType type = NodeIconType.General)
{
control.Properties.DataSource = list;
control.Properties.DisplayMember = "name";
control.Properties.ValueMember = "id";
control.Properties.PopupFormMinSize = new Size(60, 0);
control.Properties.TreeList.ParentFieldName = "parentId";
TreeFormat(control.Properties.TreeList, type);
}
