// Default.aspx //
<%@ Page Language="C#" AutoEventWireup="true" CodeFile="Default.aspx.cs" Inherits="_Default" %>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head id="Head1" runat="server">
<title>TreeView</title>
<script type="text/javascript">
function OnTreeClick(evt) {
var src = window.event != window.undefined ? window.event.srcElement : evt.target;
var isChkBoxClick = (src.tagName.toLowerCase() == "input" && src.type == "checkbox");
if (isChkBoxClick) {
if (src.checked == true) {
var nodeText = getNextSibling(src).innerText || getNextSibling(src).innerHTML;
var nodeValue = GetNodeValue(getNextSibling(src));
document.getElementById("label").innerHTML += nodeText + ",";
}
else {
var nodeText = getNextSibling(src).innerText || getNextSibling(src).innerHTML;
var nodeValue = GetNodeValue(getNextSibling(src));
var val = document.getElementById("label").innerHTML;
document.getElementById("label").innerHTML = val.replace(nodeText+",", "");
}
var parentTable = GetParentByTagName("table", src);
var nxtSibling = parentTable.nextSibling;
if (nxtSibling && nxtSibling.nodeType == 1) {
if (nxtSibling.tagName.toLowerCase() == "div") {
CheckUncheckChildren(parentTable.nextSibling, src.checked);
}
}
CheckUncheckParents(src, src.checked);
}
}
function CheckUncheckChildren(childContainer, check) {
var childChkBoxes = childContainer.getElementsByTagName("input");
var childChkBoxCount = childChkBoxes.length;
for (var i = 0; i < childChkBoxCount; i++) {
childChkBoxes[i].checked = check;
}
}
function CheckUncheckParents(srcChild, check) {
var parentDiv = GetParentByTagName("div", srcChild);
var parentNodeTable = parentDiv.previousSibling;
if (parentNodeTable) {
var checkUncheckSwitch;
if (check) {
var isAllSiblingsChecked = AreAllSiblingsChecked(srcChild);
if (isAllSiblingsChecked)
checkUncheckSwitch = true;
else
return;
}
else
{
checkUncheckSwitch = false;
}
var inpElemsInParentTable = parentNodeTable.getElementsByTagName("input");
if (inpElemsInParentTable.length > 0) {
var parentNodeChkBox = inpElemsInParentTable[0];
parentNodeChkBox.checked = checkUncheckSwitch;
CheckUncheckParents(parentNodeChkBox, checkUncheckSwitch);
}
}
}
function AreAllSiblingsChecked(chkBox) {
var parentDiv = GetParentByTagName("div", chkBox);
var childCount = parentDiv.childNodes.length;
for (var i = 0; i < childCount; i++) {
if (parentDiv.childNodes[i].nodeType == 1) {
if (parentDiv.childNodes[i].tagName.toLowerCase() == "table") {
var prevChkBox = parentDiv.childNodes[i].getElementsByTagName("input")[0];
if (!prevChkBox.checked) {
return false;
}
}
}
}
return true;
}
function GetParentByTagName(parentTagName, childElementObj) {
var parent = childElementObj.parentNode;
while (parent.tagName.toLowerCase() != parentTagName.toLowerCase()) {
parent = parent.parentNode;
}
return parent;
}
function getNextSibling(element) {
var n = element;
do n = n.nextSibling;
while (n && n.nodeType != 1);
return n;
}
function GetNodeValue(node) {
var nodeValue = "";
var nodePath = node.href.substring(node.href.indexOf(",") + 2, node.href.length - 2);
var nodeValues = nodePath.split("\\");
if (nodeValues.length > 1)
nodeValue = nodeValues[nodeValues.length - 1];
else
nodeValue = nodeValues[0].substr(1);
return nodeValue;
}
</script>
</head>
<body>
<form id="form1" runat="server">
<div>
<br />
<br />
<table width="600px" align="center">
<tr>
<td>
<asp:TreeView ID="tvTables" runat="server" ForeColor="Black" Font-Size="13pt"
ShowCheckBoxes="All" OnClick="OnTreeClick(event)">
</asp:TreeView>
<br />
<div id="label"></div>
</td>
</tr>
</table>
<br />
</div>
</form>
</body>
</html>
// default.aspx.cs //
using System;
using System.Collections;
using System.Configuration;
using System.Linq;
using System.Web;
using System.Web.Security;
using System.Web.UI;
using System.Web.UI.HtmlControls;
using System.Web.UI.WebControls;
using System.Web.UI.WebControls.WebParts;
using System.Xml.Linq;
using System.Data;
using System.Data.SqlClient;
public partial class _Default : System.Web.UI.Page
{
SqlConnection conn = new SqlConnection("Data Source=.;Initial Catalog=asd;Integrated Security=True");
protected void Page_Load(object sender, EventArgs e)
{
if(!this.IsPostBack)
{
PopulateTreeview();
}
}
private void PopulateTreeview()
{
try
{
DataSet ds = new DataSet();
DataTable dtparent = new DataTable();
DataTable dtchild = new DataTable();
dtparent = FillParentTable();
dtparent.TableName = "A";
dtchild = FillChildTable();
dtchild.TableName = "B";
ds.Tables.Add(dtparent);
ds.Tables.Add(dtchild);
ds.Relations.Add("children", dtparent.Columns["state_id"], dtchild.
Columns["state_id"]);
if (ds.Tables[0].Rows.Count > 0)
{
tvTables.Nodes.Clear();
foreach (DataRow masterRow in ds.Tables[0].Rows)
{
TreeNode masterNode = new TreeNode((string)masterRow["state"],
Convert.ToString(masterRow["state_id"]));
tvTables.Nodes.Add(masterNode);
tvTables.CollapseAll();
foreach (DataRow childRow in masterRow.GetChildRows("Children"))
{
TreeNode childNode = new TreeNode((string)childRow["district"],
Convert.ToString(childRow["state_id"]));
masterNode.ChildNodes.Add(childNode);
childNode.Value = Convert.ToString(childRow["district_id"]);
}
}
}
}
catch (Exception ex)
{
throw new Exception("Unable to populate treeview" + ex.Message);
}
}
private DataTable FillParentTable()
{
DataSet ds = new DataSet();
DataTable dt = new DataTable();
DataTable dtnew = new DataTable();
conn.Open();
string cmdstr = "Select * from State_mst";
SqlCommand cmd = new SqlCommand(cmdstr, conn);
SqlDataAdapter adp = new SqlDataAdapter(cmd);
adp.Fill(ds);
cmd.ExecuteNonQuery();
dt = ds.Tables[0];
conn.Close();
dtnew = dt.Copy();
return dtnew;
}
private DataTable FillChildTable()
{
DataSet ds = new DataSet();
DataTable dt = new DataTable();
DataTable dtnew = new DataTable();
conn.Open();
string cmdstr = "Select * from District_mst";
SqlCommand cmd = new SqlCommand(cmdstr, conn);
SqlDataAdapter adp = new SqlDataAdapter(cmd);
adp.Fill(ds);
cmd.ExecuteNonQuery();
dt = ds.Tables[0];
conn.Close();
dtnew = dt.Copy();
return dtnew;
}
}
<%@ Page Language="C#" AutoEventWireup="true" CodeFile="Default.aspx.cs" Inherits="_Default" %>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head id="Head1" runat="server">
<title>TreeView</title>
<script type="text/javascript">
function OnTreeClick(evt) {
var src = window.event != window.undefined ? window.event.srcElement : evt.target;
var isChkBoxClick = (src.tagName.toLowerCase() == "input" && src.type == "checkbox");
if (isChkBoxClick) {
if (src.checked == true) {
var nodeText = getNextSibling(src).innerText || getNextSibling(src).innerHTML;
var nodeValue = GetNodeValue(getNextSibling(src));
document.getElementById("label").innerHTML += nodeText + ",";
}
else {
var nodeText = getNextSibling(src).innerText || getNextSibling(src).innerHTML;
var nodeValue = GetNodeValue(getNextSibling(src));
var val = document.getElementById("label").innerHTML;
document.getElementById("label").innerHTML = val.replace(nodeText+",", "");
}
var parentTable = GetParentByTagName("table", src);
var nxtSibling = parentTable.nextSibling;
if (nxtSibling && nxtSibling.nodeType == 1) {
if (nxtSibling.tagName.toLowerCase() == "div") {
CheckUncheckChildren(parentTable.nextSibling, src.checked);
}
}
CheckUncheckParents(src, src.checked);
}
}
function CheckUncheckChildren(childContainer, check) {
var childChkBoxes = childContainer.getElementsByTagName("input");
var childChkBoxCount = childChkBoxes.length;
for (var i = 0; i < childChkBoxCount; i++) {
childChkBoxes[i].checked = check;
}
}
function CheckUncheckParents(srcChild, check) {
var parentDiv = GetParentByTagName("div", srcChild);
var parentNodeTable = parentDiv.previousSibling;
if (parentNodeTable) {
var checkUncheckSwitch;
if (check) {
var isAllSiblingsChecked = AreAllSiblingsChecked(srcChild);
if (isAllSiblingsChecked)
checkUncheckSwitch = true;
else
return;
}
else
{
checkUncheckSwitch = false;
}
var inpElemsInParentTable = parentNodeTable.getElementsByTagName("input");
if (inpElemsInParentTable.length > 0) {
var parentNodeChkBox = inpElemsInParentTable[0];
parentNodeChkBox.checked = checkUncheckSwitch;
CheckUncheckParents(parentNodeChkBox, checkUncheckSwitch);
}
}
}
function AreAllSiblingsChecked(chkBox) {
var parentDiv = GetParentByTagName("div", chkBox);
var childCount = parentDiv.childNodes.length;
for (var i = 0; i < childCount; i++) {
if (parentDiv.childNodes[i].nodeType == 1) {
if (parentDiv.childNodes[i].tagName.toLowerCase() == "table") {
var prevChkBox = parentDiv.childNodes[i].getElementsByTagName("input")[0];
if (!prevChkBox.checked) {
return false;
}
}
}
}
return true;
}
function GetParentByTagName(parentTagName, childElementObj) {
var parent = childElementObj.parentNode;
while (parent.tagName.toLowerCase() != parentTagName.toLowerCase()) {
parent = parent.parentNode;
}
return parent;
}
function getNextSibling(element) {
var n = element;
do n = n.nextSibling;
while (n && n.nodeType != 1);
return n;
}
function GetNodeValue(node) {
var nodeValue = "";
var nodePath = node.href.substring(node.href.indexOf(",") + 2, node.href.length - 2);
var nodeValues = nodePath.split("\\");
if (nodeValues.length > 1)
nodeValue = nodeValues[nodeValues.length - 1];
else
nodeValue = nodeValues[0].substr(1);
return nodeValue;
}
</script>
</head>
<body>
<form id="form1" runat="server">
<div>
<br />
<br />
<table width="600px" align="center">
<tr>
<td>
<asp:TreeView ID="tvTables" runat="server" ForeColor="Black" Font-Size="13pt"
ShowCheckBoxes="All" OnClick="OnTreeClick(event)">
</asp:TreeView>
<br />
<div id="label"></div>
</td>
</tr>
</table>
<br />
</div>
</form>
</body>
</html>
// default.aspx.cs //
using System;
using System.Collections;
using System.Configuration;
using System.Linq;
using System.Web;
using System.Web.Security;
using System.Web.UI;
using System.Web.UI.HtmlControls;
using System.Web.UI.WebControls;
using System.Web.UI.WebControls.WebParts;
using System.Xml.Linq;
using System.Data;
using System.Data.SqlClient;
public partial class _Default : System.Web.UI.Page
{
SqlConnection conn = new SqlConnection("Data Source=.;Initial Catalog=asd;Integrated Security=True");
protected void Page_Load(object sender, EventArgs e)
{
if(!this.IsPostBack)
{
PopulateTreeview();
}
}
private void PopulateTreeview()
{
try
{
DataSet ds = new DataSet();
DataTable dtparent = new DataTable();
DataTable dtchild = new DataTable();
dtparent = FillParentTable();
dtparent.TableName = "A";
dtchild = FillChildTable();
dtchild.TableName = "B";
ds.Tables.Add(dtparent);
ds.Tables.Add(dtchild);
ds.Relations.Add("children", dtparent.Columns["state_id"], dtchild.
Columns["state_id"]);
if (ds.Tables[0].Rows.Count > 0)
{
tvTables.Nodes.Clear();
foreach (DataRow masterRow in ds.Tables[0].Rows)
{
TreeNode masterNode = new TreeNode((string)masterRow["state"],
Convert.ToString(masterRow["state_id"]));
tvTables.Nodes.Add(masterNode);
tvTables.CollapseAll();
foreach (DataRow childRow in masterRow.GetChildRows("Children"))
{
TreeNode childNode = new TreeNode((string)childRow["district"],
Convert.ToString(childRow["state_id"]));
masterNode.ChildNodes.Add(childNode);
childNode.Value = Convert.ToString(childRow["district_id"]);
}
}
}
}
catch (Exception ex)
{
throw new Exception("Unable to populate treeview" + ex.Message);
}
}
private DataTable FillParentTable()
{
DataSet ds = new DataSet();
DataTable dt = new DataTable();
DataTable dtnew = new DataTable();
conn.Open();
string cmdstr = "Select * from State_mst";
SqlCommand cmd = new SqlCommand(cmdstr, conn);
SqlDataAdapter adp = new SqlDataAdapter(cmd);
adp.Fill(ds);
cmd.ExecuteNonQuery();
dt = ds.Tables[0];
conn.Close();
dtnew = dt.Copy();
return dtnew;
}
private DataTable FillChildTable()
{
DataSet ds = new DataSet();
DataTable dt = new DataTable();
DataTable dtnew = new DataTable();
conn.Open();
string cmdstr = "Select * from District_mst";
SqlCommand cmd = new SqlCommand(cmdstr, conn);
SqlDataAdapter adp = new SqlDataAdapter(cmd);
adp.Fill(ds);
cmd.ExecuteNonQuery();
dt = ds.Tables[0];
conn.Close();
dtnew = dt.Copy();
return dtnew;
}
}
// SQL TABLE //
OUTPUT
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