private void treeList1_CalcNodeDragImageIndex(object sender, CalcNodeDragImageIndexEventArgs e)
{
try
{
if (e.Node[treeListColumn3].ToString() == "Folder")
{
e.ImageIndex = 0;
}
if (e.Node[treeListColumn3].ToString() == "File")
{
if (e.Node.ParentNode == treeList1.FocusedNode.ParentNode)
{
e.ImageIndex = -1;
return;
}
if (e.ImageIndex == 0)
{
if (e.Node.Id > treeList1.FocusedNode.Id)
{
e.ImageIndex = 2;
}
else
{
e.ImageIndex = 1;
}
}
}
}
catch { }
}
private void tlItem_CalcNodeDragImageIndex(object sender, CalcNodeDragImageIndexEventArgs e)
{
TreeList tl = sender as TreeList;
if (GetDragDropEffect(tl, tl.FocusedNode) == DragDropEffects.None)
{
e.ImageIndex = -1; // no icon
}
else
{
e.ImageIndex = 1; // the reorder icon (a curved arrow)
}
}
void treeList_CalcNodeDragImageIndex(object sender, CalcNodeDragImageIndexEventArgs e)
{
DXDragEventArgs ea = TreeList.GetDXDragEventArgs(e.DragArgs);
if (!object.Equals(ea.RootNode, ea.TargetRootNode))
{
e.ImageIndex = -1;
}
else
{
e.ImageIndex = 1;
}
}
private void calcNodeDragImageIndex(CalcNodeDragImageIndexEventArgs e)
{
var selectedNodes = getSelectedTreeNodes();
if (getDragDropEffect(selectedNodes) == DragDropEffects.None)
{
e.ImageIndex = -1; // no icon
}
else
{
e.ImageIndex = 2; // the reorder icon (a curved arrow)
}
}
private void TreeList1_CalcNodeDragImageIndex(object sender, CalcNodeDragImageIndexEventArgs e)
{
TreeList tl = sender as TreeList;
DXDragEventArgs args = e.DragArgs.GetDXDragEventArgs(tl);
TreeListNode node = args.Data.GetData(typeof(TreeListNode)) as TreeListNode;
// draging treelist item
if (node != null)
{
// invalid drop location, show nothing
if (GetDragDropEffect(tl, node) == DragDropEffects.None)
{
e.ImageIndex = -1;
}
// dropping a child onto a parent, show INSERT arrow
else if (args.TargetNode.Level == 0 && node.Level > 0)
{
e.ImageIndex = 0;
}
// otherwise show AFTER arrow
else
{
e.ImageIndex = 2;
}
}
// dragging grid row
else
{
EstimateProjectType pt = args.Data.GetData(typeof(EstimateProjectType)) as EstimateProjectType;
EstimateCalculator calc = args.Data.GetData(typeof(EstimateCalculator)) as EstimateCalculator;
bool isProject = pt != null;
//object gridObject = args.Data.GetData(typeof(object));
// invalid drop location, show nothing
DragDropEffects dde;
if (isProject)
{
dde = GetDragDropEffect(tl, pt);
}
else
{
dde = GetDragDropEffect(tl, calc);
}
if (dde == DragDropEffects.None)
{
e.ImageIndex = -1; // no icon
}
// dropping a CALCULATOR onto a parent, show INSERT arrow
else if (args.TargetNode.Level == 0 && !isProject)
{
e.ImageIndex = 0;
}
// otherwise show AFTER arrow
else
{
e.ImageIndex = 2;
}
}
}
private void treeView_CalcNodeDragImageIndex(
object sender,
CalcNodeDragImageIndexEventArgs e)
{
var tree = (TreeList)sender;
if (getDragDropEffect(tree, tree.FocusedNode) == DragDropEffects.None)
{
e.ImageIndex = -1; // no icon
}
else
{
e.ImageIndex = 1; // the reorder icon (a curved arrow)
}
}
