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An urgent question about the checkbox in treeview in asp.net ~~

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Post time: 2020-1-25 18:20:01
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I added the showcheckbox attribute when I was doing treeview, but because I did n’t know how to add the id of the selected node to the database for the first time, my treeview is database-bound. Please help me, it is better to have detailed code, thank you ~~
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Post time: 2020-2-15 01:45:01
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foreach (TreeNode node in tnBaseNode.Nodes)
{
  if (node.Checked == true)
  {
     // Insert data
  }
}
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 Author| Post time: 2020-2-15 09:00:02
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More details, please, I want to write in the OnClick event of Button, I'm in trouble ~~
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Post time: 2020-6-20 11:30:01
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protected void Button1_Click(object sender, EventArgs e)
        {
            ArrayList arr = new ArrayList();
            foreach (TreeNode node in TreeView1.Nodes)
            {
                if (node.Checked == true)
                {
                    arr.Add(node.Value);//node.Value is the bound ID
                }
            }
            . . . . . //Add code to the database
        }
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 Author| Post time: 2020-7-10 19:15:01
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Thanks a lot! !
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