How to stop treeview random calling after postback

Question

I have created a treeview in my project but problem while cliking on nodes then all nodes coming to show again to below of tree.

Srinivasan Ramamoorthi · Answer

You have to call populate treeview outside of if else condition and inside for loop. Refer below code private void PopulateTreeView(int parentId, TreeNode parentNode) { TreeNode childNode; foreach (DataRow dr in _acountsTb.Select("[parent]=" + parentId)) { TreeNode t = new TreeNode(); t.Text = dr["code"].ToString() + " - " + dr["ac_name"].ToString(); t.Name = dr["code"].ToString(); t.Tag = _acountsTb.Rows.IndexOf(dr); if (parentNode == null) { treeView1.Nodes.Add(t); childNode = t; } else { parentNode.Nodes.Add(t); childNode = t; } PopulateTreeView(Convert.ToInt32(dr["code"].ToString()), childNode); } }

sanjeev roy · Answer

##My code like below , where is wrong ?pls private void PopulateTreeView(DataTable dtParent, int parentId, TreeNode treeNode) { foreach (DataRow row in dtParent.Rows) { TreeNode child = new TreeNode { Text = row["Name"].ToString(), Value = row["ID"].ToString() }; if (parentId == 0) { TreeView1.Nodes.Add(child); DataTable dtChild = this.GetData("SELECT ID, Name FROM PAN_IEPlanning.dbo.TbliEGarmentSubType WHERE ParentID = " + child.Value); PopulateTreeView(dtChild, int.Parse(child.Value), child); } else { treeNode.ChildNodes.Add(child); } } }

sanjeev roy · Answer

I mean how to stope recursive function on tree view .

Srinivasan Ramamoorthi · Answer

Can you share the way you are binding the data source?

sanjeev roy · Answer

Ramamoorthi, I had check with this code but not solved even i had tried by some other , still showing same .

Srinivasan Ramamoorthi · Answer

There should be a problem in the way you are binding the dataset. You can refer examples online or share the code Refer this article too https://www.aspsnippets.com/Articles/Populate-Bind-TreeView-from-database-in-ASPNet.aspx

Vikas Panwar · Answer

https://www.c-sharpcorner.com/UploadFile/955025/treeview-control-in-Asp-Net/

Vikas Panwar · Answer

https://www.c-sharpcorner.com/UploadFile/b926a6/create-treeview-in-Asp-Net-with-sql-database-tables/

How to stop treeview random calling after postback

Answers (8)