Compatibility between data types in Java and .Net

Recently I came across an interesting scenario where a Java app was consuming a .Net webservice. The challenge here was to consume a DataSet returned from a webmethod written in .Net to the calling Java UI.

One approach is to return the data in plain XML which can be done by GetXML() of the dataset but this was not acceptable. So I did a search on some similar scenarios and found out one link which lists the compatibility between different data types .. sor of a rule book you can use when you have Java UI/.Net webservice to a .Net UI/Java webservice.

http://msdn.microsoft.com/en-us/netframework/gg413252

Happy coding :)

Tree node event for fetching the selected node

Back after one year of CHANGE !!!

A few days ago one of my friend had a question about tree node, he wanted to copy the text of selected node else the app should not copy. So I did some R&D on events available with tree node. Its the OnSelectedNodeChanged..


Here is sample code for the same :)
 *********ASPX Code****************


   
   


   

   

       
   

       
            OnTreeNodeExpanded="TreeView1_TreeNodeExpanded"
            onselectednodechanged="TreeView1_SelectedNodeChanged">
       
   

   

***************************************

*****Code behind***********


protected void Page_Load(object sender, EventArgs e)
    {
        if (!IsPostBack)
        {
            Bind_tree();
        }
    }
    public void Bind_tree()
    {
        DataTable dt = Get_District();
        for (int i = 0; i < dt.Rows.Count; i++)
        {
            TreeNode no = new TreeNode();
            no.Text = dt.Rows[i]["District"].ToString();
            no.Value = dt.Rows[i]["District"].ToString();
            Get_allNodes(no);
            this.TreeView1.Nodes.Add(no);
        }
    }
    public void Get_allNodes(TreeNode no)
    {
        DataTable dt = Get_Arealist();
        DataRow[] rows = dt.Select("District='" + no.Value + "'");
        for (int i = 0; i < rows.Length; i++)
        {
            TreeNode child = new TreeNode();
            child.Text = rows[i]["Area"].ToString();
            child.Value = rows[i]["Area"].ToString();
            no.ChildNodes.Add(child);
            Get_allNodes(child);
        }
    }


    // You can get the data from your own database.
    // I get the datatable like this in order to run the sample more conveniently.
    public DataTable Get_District()
    {
        DataTable dt = new DataTable();
        DataRow dr;
        string Name = "District_1,District_2,District_3";
        string ID = "1,2,3";
        string[] list1 = Name.Split(',');
        string[] list2 = ID.Split(',');
        dt.Columns.Add(new DataColumn("District"));
        dt.Columns.Add(new DataColumn("ID"));
        for (int i = 0; i < list1.Length; i++)
        {
            dr = dt.NewRow();
            dr["District"] = list1[i];
            dr["ID"] = list2[i];
            dt.Rows.Add(dr);
        }
        return dt;
    }

    // You can get the data from your own database.
    // I get the datatable like this in order to run the sample more conveniently.
    public DataTable Get_Arealist()
    {
        DataTable dt = new DataTable();
        DataRow dr;
        string Name = "Area_1,Area_2,Area_3,Area_4,Area_5";
        string Dis = "District_1,District_1,District_1,District_3,Area_1";
        string ID = "1,2,3,4,5";
        string[] list1 = Name.Split(',');
        string[] list2 = Dis.Split(',');
        string[] list3 = ID.Split(',');
        dt.Columns.Add(new DataColumn("Area"));
        dt.Columns.Add(new DataColumn("District"));
        dt.Columns.Add(new DataColumn("ID"));
        for (int i = 0; i < list1.Length; i++)
        {
            dr = dt.NewRow();
            dr["Area"] = list1[i];
            dr["District"] = list2[i];
            dr["ID"] = list3[i];
            dt.Rows.Add(dr);
        }
        return dt;
    }
    protected void TreeView1_TreeNodeExpanded(object sender, TreeNodeEventArgs e)
    {
        TreeNodeCollection ts = null;
        if (e.Node.Parent == null)
        {
            ts = ((TreeView)sender).Nodes;
        }
        else
            ts = e.Node.Parent.ChildNodes;
        foreach (TreeNode node in ts)
        {
            if (node == e.Node)
            {
                node.Expand();
            }
            else
            {
                node.Collapse();
            }
        }

    }
    protected void TreeView1_SelectedNodeChanged(object sender, EventArgs e)
    {
        TreeNodeEventArgs xm = new TreeNodeEventArgs(this.TreeView1.SelectedNode);
        TreeView1_TreeNodeExpanded(sender, xm);
        string value = this.TreeView1.SelectedNode.Text;
        this.Label1.Text = value;
        Page.ClientScript.RegisterStartupScript(this.GetType(), "Ming", "Getvalue('" + value + "')", true);
    }



Happy Coding :)