Hi All,

 Does anybody know how to sort TreeView Nodes after dynamically adding them? The thing is in our code it's being populated dinamically and the only way to sort each node is after population. I found microsoft topic about it but I can't figure out where and how to plug in TreeView.TreeViewNodeSorter Property  

http://msdn2.microsoft.com/en-us/library/system.windows.forms.treeview.treeviewnodesorter.aspx 

Thank you in advance!

 Tatyana

That is for the winforms treeview not the Webforms treeview :(

As far as I know sorting is a manual process in the webforms tree.

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TreeViewNodeSorter is only available in windows Forms.

For Web application you have to create your own Property.

There is an Idea for using Client Callback.

this way you can submit your Treeview Nodes (with out a Postback) and on the server side you can do Manual Compare.

See the Article about Client CallBack:

Client Callback in ASP .NET 2.0

Dah, I can't believe I overlooked the subject of the topic :(

Sorry I don't think I explained that well. The page doesn't need to have sorting enabled on client callback. All I need is once the data is populated for the treeview go through the nodes and put them in the alphabetical order. Although the datatable I'm binding it too is already sorted, when  go through the nodes to populate them the order gets messed up.  Cause the way it's being populated. I'm binding to the specific node by the first letter. Every node has a Header as follows: A, B, C, D, E ... and so on. So when I bind I go throught the datatable and pick and choose the Names in the Datatable according to the letter of the node. So if it's "A" I'm only taking all Publishers which starts with letter "A", and so on until I go through the whole DataTable.

Here is where you can see that example: http://www.programmers.com/PPI_US/PartnerCenter/VendorIndex.aspx  If you expand node "Vendor A" you will see all the vendors, but they are not boudn alphabetical by Publisher Name, instead they are bound by the Publisher ID. Which is how I needed to determine the binding. So the only way to sort is afterwards I think :(

Thank you very much for your help!

Tatyana 

Could this be as easy as an order by clause in the sql?

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DOH!!!  Just re-looked at the post that say its already sorted....

maybe since its bound you need a group by and an order by ... (Grasping at straws now)

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Yes I printed out the values and it turned out that the object returned from Commerce Server Catalog (My Datatable) is not sorted like it's supposed to :(

But the sort options are set to ppi_publisher_name and not to ppi_publisher_id. But then there is a last code which I think is changing the sort:

dt.Columns.Add("ppi_publisher_id", _CatalogItems.Tables[0].Columns["ppi_publisher_id"].DataType);
2                    dt.Columns.Add("ppi_publisher_name", _CatalogItems.Tables[0].Columns["ppi_publisher_name"].DataType);
3   
4                    string lastValue = "";
5                    foreach (DataRow dr in _CatalogItems.Tables[0].Select("", "ppi_publisher_id"))
6                    {
7                        if (lastValue != dr["ppi_publisher_id"].ToString() && dr["ppi_publisher_id"] != DBNull.Value)
8                        {
9                            lastValue = dr["ppi_publisher_id"].ToString();
10                           dt.Rows.Add(dr["ppi_publisher_id"], dr["ppi_publisher_name"]);
11                       }
12                   }
13  

 So it's not the treeview but the datatable is not sorted...

 Tatyana

Glad I could help.

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