TreeView Check Box population

Hi everyone...

I have populated a treeview. (like Category.JPG in the zip file), Now I am getting the datatable containing the treeview node values. and on the basis of that I need to make "checked" the check boxes at the time of page load. I am getting the Parent nodes only by using the following code below. But unable to get the child nodes.

            DataTable dt = ds1.Tables[0];
            foreach (TreeNode node in TreeViewArticleCatagory.Nodes)
            {
                foreach (DataRow dr in dt.Rows)
                {
                    if (Convert.ToString(dr["Item"]) == node.Value)
                    {
                        node.Checked = true;
                        //TreeViewArticleCatagory.SelectedNode.Checked = true;
                    }
                }
            }

Please help me....

Thanks in advance.....

yes at last completed....
     private void methode()
     {
        ds1 = new DataSet();
        ds1 = oCategory.GetCategoriesOfArticle(ArticleID); // Use your own methode
        if (ds1 !=null && ds1.Tables[0].Rows.Count > 0)
        {
            foreach (TreeNode node in TreeViewArticleCatagory.Nodes)
            {
                CheckNodes(node);
            }
        }
    }
    private void CheckNodes(TreeNode _node)
    {
        if (_node.ChildNodes.Count > 0)
        {
            CheckIfNodeValueExistsInDataTable(_node, ds1);

            foreach (TreeNode _childNode in _node.ChildNodes)
            {
                CheckNodes(_childNode);
            }
        }
        else
        {
            CheckIfNodeValueExistsInDataTable(_node, ds1);
        }
    }
    private void CheckIfNodeValueExistsInDataTable(TreeNode _node, DataSet _dsCatogories)
    {
           DataTable dtNodes = _dsCatogories.Tables[0];
           DataRow[] drow= dtNodes.Select("Item='" + _node.Value+"'");
           if (drow != null && drow.Length > 0)
           {
               _node.Checked = true;
           }
    }

1 Reply

Know the answer? Post it — somebody with the same question will find it here.

Arindam Rudra16y ago
yes at last completed....
     private void methode()
     {
        ds1 = new DataSet();
        ds1 = oCategory.GetCategoriesOfArticle(ArticleID); // Use your own methode
        if (ds1 !=null && ds1.Tables[0].Rows.Count > 0)
        {
            foreach (TreeNode node in TreeViewArticleCatagory.Nodes)
            {
                CheckNodes(node);
            }
        }
    }
    private void CheckNodes(TreeNode _node)
    {
        if (_node.ChildNodes.Count > 0)
        {
            CheckIfNodeValueExistsInDataTable(_node, ds1);

            foreach (TreeNode _childNode in _node.ChildNodes)
            {
                CheckNodes(_childNode);
            }
        }
        else
        {
            CheckIfNodeValueExistsInDataTable(_node, ds1);
        }
    }
    private void CheckIfNodeValueExistsInDataTable(TreeNode _node, DataSet _dsCatogories)
    {
           DataTable dtNodes = _dsCatogories.Tables[0];
           DataRow[] drow= dtNodes.Select("Item='" + _node.Value+"'");
           if (drow != null && drow.Length > 0)
           {
               _node.Checked = true;
           }
    }