private void beforeNodeExpand(object sender, BeforeExpandEventArgs e)
{
if (!e.CanExpand)
{
return;
}
if (!UseLazyLoading)
{
return;
}
var nodeToExpand = NodeFrom(e.Node);
foreach (var child in nodeToExpand.Children)
{
var childNode = NodeFrom(child);
//already added and expended!
if (childNode != null && childNode.HasChildren)
{
continue;
}
child.Children.Each(AddNode);
}
}
void TreeList_BeforeExpand(object sender, BeforeExpandEventArgs e)
{
if (!(bool)((object[])e.Node.Tag)[1])
{
DrawTree(e.Node);
}
}
void TreeList_BeforeExpand(object sender, BeforeExpandEventArgs e)
{
//if (!(bool)((object[])e.Node.Tag)[1]) DrawTree(e.Node);
if (!((MyNode)e.Node.Tag).IsLoad)
{
DrawTree(e.Node);
}
}
private void treeList1_BeforeExpand(object sender, BeforeExpandEventArgs e)
{
if (e.Node.Tag != null)
{
Cursor currentCursor = Cursor.Current;
Cursor.Current = Cursors.WaitCursor;
InitFolders(e.Node.GetDisplayText("FullName"), e.Node);
e.Node.Tag = null;
Cursor.Current = currentCursor;
}
}
public void ObjectExplorer_OnBeforeExpand(BeforeExpandEventArgs e)
{
if (_refreshing)
{
return;
}
if (e.Node.Nodes.Count <= 0)
{
var model = GetModelForNode(e.Node);
LoadDataForObjectExplorerDynamically(model);
}
}
private void BeforeExpand(object sender, BeforeExpandEventArgs e)
{
if (e.Node.Nodes.Count != 0)
{
return;
}
DataRow row = e.Node.Tag as DataRow;
foreach (DataRow childRow in row.GetChildRows(row.Table.ChildRelations[0]))
{
TreeListNode node = MasterTreeList.AppendNode(new object[] { childRow["ID"], childRow["ParentID"], childRow["Value"] }, e.Node, childRow);
node.HasChildren = childRow.Table.ChildRelations.Count != 0;
}
}
private void treeFile_BeforeExpand(object sender, BeforeExpandEventArgs e)
{
if (e.Node.GetDisplayText("Type") == "Folder" && e.Node.HasChildren && e.Node.Nodes.Count == 0)
{
string dirPath = e.Node.GetDisplayText("Dir");
var curNode = e.Node.ParentNode;
while (curNode != null)
{
dirPath = curNode.GetDisplayText("Dir") + "\\" + dirPath;
curNode = curNode.ParentNode;
}
dirPath = Path.Combine(RootFolder, dirPath);
treeFile.BeginUnboundLoad();
string[] lstDir = Directory.GetDirectories(dirPath);
foreach (var dir in lstDir)
{
string dirName = Path.GetFileName(dir);
var node = treeFile.AppendNode(new object[] { "Folder", dirName }, e.Node);
node.HasChildren = true;
}
List <string> files = new List <string>();
if (FilterString == "")
{
files = Directory.GetFiles(dirPath).Select(f => Path.GetFileName(f)).ToList();
}
else
{
var lstExt = FilterString.Split(';');
foreach (var ex in lstExt)
{
var ff = Directory.GetFiles(dirPath, ex).Select(f => Path.GetFileName(f)).ToList();
foreach (var f in ff)
{
files.Add(f);
}
}
}
foreach (var file in files.OrderBy(f => f).ToList())
{
var node = treeFile.AppendNode(new object[] { "File", file }, e.Node);
node.HasChildren = false;
}
treeFile.EndUnboundLoad();
}
}
private void TreeListServerFolderExplorerOnBeforeExpand(object sender, BeforeExpandEventArgs e)
{
if (e.Node.HasChildren && e.Node.Nodes.Count < 1)
{
//TODO - probably should move this to the DAL
var fullPath = GetFullPathForTreeNode(e.Node, @"\");
var xpDirTreeCommand = $"exec xp_dirtree '{fullPath}', 1, 1";
DataSet dataSet = App.Connection.CurrentServer.ConnectionContext.ExecuteWithResults(xpDirTreeCommand);
dataSet.Tables[0].DefaultView.Sort = "file ASC";
DataTable dataTable = dataSet.Tables[0].DefaultView.ToTable();
foreach (DataRow row in dataTable.Rows)
{
CreateSubDirectoryNode(e, row, fullPath);
}
}
}
private void CreateSubDirectoryNode(BeforeExpandEventArgs e, DataRow row, string fullPath)
{
var subDirectory = row["subdirectory"].ToString();
var nodeIsAFile = IsThisAFile(row["file"].ToString());
if (nodeIsAFile)
{
if (!IsThisABackupFile(fullPath + subDirectory))
{
return;
}
var node = e.Node.Nodes.Add(subDirectory, fullPath + subDirectory, nodeIsAFile);
node.HasChildren = false;
}
else
{
var node = e.Node.Nodes.Add(subDirectory, fullPath + subDirectory, nodeIsAFile);
node.HasChildren = true;
}
}
private void treeList_BeforeExpand(object sender, BeforeExpandEventArgs beea)
{
}
private void protectDoubleClickOnNode(
BeforeExpandEventArgs e)
{
// Avoid expanding/collapsing upon double click.
if (treeView.WasDoubleClick)
{
if (e.Node.Level > 0)
{
e.CanExpand = false;
treeView.WasDoubleClick = false;
}
}
}
void treeList1_BeforeExpand(object sender, BeforeExpandEventArgs e) {
}
private void treeView_BeforeExpand(object sender, BeforeExpandEventArgs e)
{
protectDoubleClickOnNode(e);
}
void tree_BeforeExpand(object sender, BeforeExpandEventArgs e)
{
(sender as TreeList).FocusedNode = e.Node;
}
private void treeListItemCat_BeforeExpand(object sender, BeforeExpandEventArgs e)
{
TreeListNode focusedNode = e.Node;
LoadChildNodes(focusedNode);
}
void treeList1_BeforeExpand(object sender, BeforeExpandEventArgs e) {
//DataRow row=treeList1.GetDataRecordByNode(e.Node) as DataRow;
string id = e.Node["ID"].ToString();
if (id.Contains("_")&& e.Node.Nodes.Count==1) {
e.Node.Nodes.Clear();
inittq(id.Substring(0, id.Length - 1));
}
e.CanExpand = true;
}
/// <summary>
/// Раскрытие узла
/// </summary>
/// <param name="sender"></param>
/// <param name="e"></param>
private void TreeListWrapper_BeforeExpand(object sender, BeforeExpandEventArgs e)
{
LoadNodes(e.Node.Tag, e.Node);
}
void OnNavigationTreeNodeBeforeExpand(object sender, BeforeExpandEventArgs e)
{
}
void TreeList_BeforeExpand(object sender, BeforeExpandEventArgs e)
{
GenerateTestChildrenNodes(e.Node);
}
/// <summary>
/// 展开下级树
/// </summary>
/// <param name="sender"></param>
/// <param name="e"></param>
private void _pwListTree_BeforeExpand(object sender, BeforeExpandEventArgs e)
{
_TryShowNextLevel(e.Node);
return;
}
private void treeList1_BeforeExpand(object sender, BeforeExpandEventArgs e)
{
}