Binding a treeview to xml file

Posted by A4u6178 under Regular Expressions on 6/14/2011 | Points: 10 | Views : 4048 | Status : [Member] | Replies : 2

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HI All,
I have a xml file and a treeview is binded with this xml file.(xml file is datasource for treeview)
i have binded the category dropdownlist to the xml file.(binded a node in Xml file)

Now i Need help in adding a sub categoy to the treeview, for a particular category selected in above category dropdownlist.
selecting a particular category from dropdownlist and a textbox to take name of subcategory from user on a button click i want the textbox value should be added to the particular category selected from dropdownlist.

Thanks & Regards;
aaa

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Posted by: Ndebata on: 6/15/2011 [Member] Starter | Points: 25

0	Hi You can loop all nodes and check whether the node value matches with that of Dropdownlist.selectedvalue, then add a node under this node void AddTreeNodeSelected(TreeNodeCollection Nodes,string ParentNodeValue,string NewNodeValue) { foreach (TreeNode item in Nodes) { if (item.ChildNodes.Count > 0) AddTreeNodeSelected(item.ChildNodes,ParentNodeValue,NewNodeValue); else if (!string.IsNullOrEmpty(item.Value) && item.NavigateUrl.Equals(CurrentPageName,ParentNodeValue)) { item.ChildNodes.Add(new TreeNode(NewNodeValue)); break; } } } Then Call this method where you have to pass Nodes as Treeview1.Nodes, DropDownList1.SelectedValue, TextBox1.Text to this method. Thanks, Debata A4u6178, if this helps please login to Mark As Answer. \| Alert Moderator

Hi
You can loop all nodes and check whether the node value matches with that of Dropdownlist.selectedvalue, then add a node under this node


	void AddTreeNodeSelected(TreeNodeCollection Nodes,string ParentNodeValue,string NewNodeValue)

    {

        foreach (TreeNode item in Nodes)

        {

            if (item.ChildNodes.Count > 0)

                AddTreeNodeSelected(item.ChildNodes,ParentNodeValue,NewNodeValue);

            else if (!string.IsNullOrEmpty(item.Value) && item.NavigateUrl.Equals(CurrentPageName,ParentNodeValue))

            {

                item.ChildNodes.Add(new TreeNode(NewNodeValue));

                break;

            }

        }

    }

Then Call this method where you have to pass Nodes as Treeview1.Nodes, DropDownList1.SelectedValue, TextBox1.Text to this method.

Thanks,
Debata

A4u6178, if this helps please login to Mark As Answer. | Alert Moderator

Posted by: A4u6178 on: 6/15/2011 [Member] Starter | Points: 25

0	Hi sir, Thanks , for reply and code snippet provided , em going thru ur code.. em attaching the files ... pls find the attachments of design page and code file.. help me how to proceed from thereafter.. Download source file Thanks & Regards; aaa A4u6178, if this helps please login to Mark As Answer. \| Alert Moderator

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