Intersoft Community - WebTreeView

Node Expand Event

shailendra.senger — Mon, 16 May 2016 21:48:11 GMT

I am binding treeview at runtime by processing a List<T> appropriatly as a datasource where T is a class. Since Treeview doesn't have any inbuilt function which can make the searched node visibile to user. If treeview has large number of nodes than searching a bottom node always resides in bottom and scroll bar doesn't set appropriatly to bring that node up. However I got a work around to call ScrollIntoView() function, for searched node, on node expand event. This solution fails in a situation where searched node's grand parent is collapsed but its childrens are expanded. So when a grandparent expanded, its OnNodeExpand event fires for it only, not for its children as they already expanded.

Please let me know how can I trigger OnNodeExpand event for all children nodes as well (no matter if they already expanded).

Node Color change Issue in Drag n Drop

shailendra.senger — Wed, 27 Apr 2016 20:21:19 GMT

My application requires nodes in different colors. But tree nodes couldn't keep its asigned color when dragging node moves over on them. All the nodes between source and destination node become in black color, no matter what the color they had.

I have modified a page from webtreeview sample application and attached it.

Step to recreate the issue.

1. select 'WebGrid.Net3.5' node

2. Move it to Drag on 'WebDesktop.Net'

You will see some of Nodes, between drag source and destination nodes, lost their branded color what they had before.

Please let me know how to keep nodes color unchanged while dragging a node.

Drag Drop in Large Nodes

shailendra.senger — Fri, 22 Apr 2016 23:08:19 GMT

If you select a upper node to drag and move it all the way to the bottom nodes(scroll bar moves down). The dragged node doesnot moves to destination node. While dragging node losts it dragging ability.

This is happening in the treeview samples as well.

Attached is the your sample files through which this issue can be notice.

Step to recreate the issue:

1. Expand Group, Group0 and Group00

2. Select Group000 and move it down to drag it on Group44

Node not allowed to drop.

Please let me know how to fix it.

Automatic positioning of Scrollbar when a node searched

shailendra.senger — Tue, 12 Apr 2016 15:12:31 GMT

I have a treeview having more than 2000 nodes, so when I search a node(that resides quite below in treeview or all the nodes expanded), using Find functionality, It become selected but didn't come up to treeview visible area. I mean, you have to manually scroll down up to found node.

Is there a way to bring the searched node up or can set the scroll bar position infront of searched node.

Waiting for your response.

Thanks!

Shailendra Singh

Values not updating if set FlyPostBack to true

shailendra.senger — Tue, 15 Mar 2016 15:56:21 GMT

My application needs to do server side processing on treeview selected index change, and displays selected node text and enabled status, on the textbox and radiobuttons.

I made FlyPostBack settings to true(so that drag and drop easy), though FlyPostBack is causing postback but not updating the selected node text and enable on the textbox and radiobuttons.

How to get rid of this problem. Please suggest.

Problem in Drag Drop when OnNodeSelectedChange Event causes Postback

shailendra.senger — Fri, 11 Mar 2016 15:53:33 GMT

My application binds WebTreeview from a List<Rows> at runtime on Page_Init event. My application contains Webtreeview is on Left side and Tabs (or say Panel) on right side,. For each node selected, I need to display Node Text, ID, Enable etc. on the controls inside Tab (textbox, radio button and checkboxes controls). So I made AutoPostbackSettings settings 'True' for the OnNodeSelect. My application also requires Drag and Drop.

But the Drag Drop is not working correctly as when I select a node to drag, it is not draggable until it completes OnNodeSelectedChange event, Is ther any way to allow drag and Drop first then fire OnNodeSelectedChange event.

Please reply me.

Is there a way to referesh WebTreeView from clientside

shailendra.senger — Thu, 03 Mar 2016 16:34:50 GMT

Please let me know how to refresh WebTreeView from ClientSide. I need to refresh Treeview onDragDrop event.

I found that there is a functionbelow to refresh but it is from server side.

WebTreeView1.ClientAction.RefreshModifiedControls();

But I need to refresh the Treeview from client side.

How to automaticaly select Newly added node when Autopostback setting for NodeAdd also true

shailendra.senger — Mon, 29 Feb 2016 19:41:05 GMT

I have requirement to automaticaly select the newly added node, As I also need server side processing so I made Autopostback seetings-OnNodeAdd = true.

I tried calling Select() function of new node 'NewNode.Select();' but it is not working.

Please let me know how to automaticaly select newly added node.

Regards,

Shailendra Singh

WebTreeview Scroll Position

shailendra.senger — Fri, 26 Feb 2016 23:16:58 GMT

How to maintain WebTreeView scroll position on the postback caused by selected node.

Please answer.

Change Web treeview Node Text Color at Runtime

shailendra.senger — Tue, 02 Feb 2016 16:25:28 GMT

Hi,

I need to change the color of Intersoft treeview nodes at runtime base of certain condition.

I tried to attach my css class on WebTreeView1_InitializeNode as below but it is not working.

protected void WebTreeView1_InitializeNode(object sender, WebTreeViewNodeEventArgs e)

{

WebLoanDesignerRow WebLoanRow = (WebLoanDesignerRow)e.Node.Value;

switch (WebLoanRow.Level)

{

case (int)TreeViewSelectedLevel.Type:

default:

if (WebLoanRow.Enabled == (int)NodeEnabled.Enabled)

e.Node.CustomStyle = "SetRedColor";

break;

}

Please let me know how CustomStyle property works. and how do i able to change node color at runtime.

Also if I try to override the node text by below code then color is changing at runtime but nodes are not being selectable anymore.

e.Node.Text = "<font color='red'>" + e.Node.Text + "</font>";

Please reply me ASAP.