Organization Re-Structure Control : Add Sub Nodes using JQuery Modal

Hi Guys,

This is a continuation of my previous post.My colleague requested me to allow the user to add new sub nodes. I used JQuery Modal to allow the user to add a new node. Hope you like it.

1) OrganizationOrderControl.cs

using System;
using System.Collections.Generic;
using System.Linq;
using System.Reflection;
using System.Web;
using System.Web.UI;
using System.Runtime.Serialization.Json;
using System.Runtime.Serialization;
using System.Web.UI.WebControls;
using System.IO;
using System.Text;

/// <summary>
/// Summary description for OrganizationOrderControl
/// </summary>
public class OrganizationOrderControl<T> : Control
{
private List<TreeNode> Nodes { get; set; }

public OrganizationOrderControl()
{ }

public List<T> Items
{
get
{
if (ViewState["Items"] == null)
ViewState["Items"] = new List<object>();
return (List<T>)ViewState["Items"];
}
set { ViewState["Items"] = value; }
}

public string ParentColumnID
{
get
{

return (string)ViewState["ParentColumnID"];
}
set { ViewState["ParentColumnID"] = value; }
}

public string ValueMember
{
get
{

return (string)ViewState["ValueMember"];
}
set { ViewState["ValueMember"] = value; }
}

public string DisplayMember
{
get
{

return (string)ViewState["DisplayMember"];
}
set { ViewState["DisplayMember"] = value; }
}

public int TrimCharacter
{
get
{

return (int)ViewState["TrimCharacter"];
}
set { ViewState["TrimCharacter"] = value; }
}

private Type type;
private PropertyInfo parentColumn, valueColumn, displayColumn;
int p, v, i = 1;
string text, url;

/*<ol class="dd-list">
<li class="dd-item dd3-item" data-id="13">
<div class="dd-handle dd3-handle">Drag</div><div class="dd-handle">Item 13</div>
</li>
<li class="dd-item dd3-item" data-id="14">
<div class="dd-handle dd3-handle">Drag</div><div class="dd-handle">Item 14</div>
</li>
<li class="dd-item dd3-item" data-id="15">
<div class="dd-handle dd3-handle">Drag</div><div class="dd-handle">Item 15</div>
<ol class="dd-list">
<li class="dd-item dd3-item" data-id="16">
<div class="dd-handle dd3-handle">Drag</div><div class="dd-handle">Item 16</div>
</li>
<li class="dd-item dd3-item" data-id="17">
<div class="dd-handle dd3-handle">Drag</div><div class="dd-handle">Item 17</div>
</li>
<li class="dd-item dd3-item" data-id="18">
<div class="dd-handle dd3-handle">Drag</div><div class="dd3-content">Item 18</div>
</li>
</ol>
</li>
</ol>*/

protected override void Render(HtmlTextWriter writer)
{
if (this.Nodes == null)
this.Nodes = new List<TreeNode>();

url = HttpContext.Current.Request.Url.AbsoluteUri;
if (url.Contains("?"))
url = url.Substring(0, url.IndexOf("?"));

try
{
if (Items.Count > 0)
{
if (Items.Count > 1)
writer.AddAttribute(HtmlTextWriterAttribute.Class, "dd-list");
writer.RenderBeginTag(HtmlTextWriterTag.Ol);

foreach (T listItem in Items)
{
type = typeof(T);

parentColumn = type.GetProperties().Where(r => r.Name == ParentColumnID).FirstOrDefault();

valueColumn = type.GetProperties().Where(r => r.Name == ValueMember).FirstOrDefault();

displayColumn = type.GetProperties().Where(r => r.Name == DisplayMember).FirstOrDefault();

CreateNode(Convert.ToInt32(valueColumn.GetValue(listItem)),
Convert.ToInt32(parentColumn.GetValue(listItem)),
displayColumn.GetValue(listItem).ToString(),
writer);

}
if (Items.Count > 1)
writer.RenderEndTag();

writer.RenderEndTag();

if (HttpContext.Current.Request.Url.AbsoluteUri.Contains("?"))
{
if (Items.Count > 1)
writer.RenderEndTag();
writer.AddAttribute(HtmlTextWriterAttribute.Class, "spanBack");
writer.RenderBeginTag(HtmlTextWriterTag.Span);
writer.AddAttribute(HtmlTextWriterAttribute.Href, "javascript:window.history.back();");

writer.RenderBeginTag(HtmlTextWriterTag.A);
writer.Write("Back");
writer.RenderEndTag();
writer.RenderEndTag();
}

}
}
catch (Exception ex)
{

}

base.Render(writer);

}

private void CreateNode(int id, int parentID, string text, HtmlTextWriter writer)
{
if (parentID == -1)
{
TreeNode _Node = new TreeNode(text, id.ToString());
this.Nodes.Add(_Node);
writer.AddAttribute("data-id", id.ToString());
writer.AddAttribute(HtmlTextWriterAttribute.Id, "dd-item" + id);
writer.AddAttribute(HtmlTextWriterAttribute.Class, "dd-item dd3-item");
writer.RenderBeginTag(HtmlTextWriterTag.Li);
writer.AddAttribute(HtmlTextWriterAttribute.Class, "dd-handle dd3-handle");
writer.RenderBeginTag(HtmlTextWriterTag.Div);
writer.Write(id);
writer.RenderEndTag();

writer.AddAttribute(HtmlTextWriterAttribute.Class, "dd3-content");
writer.RenderBeginTag(HtmlTextWriterTag.Div);
writer.Write(text);
writer.AddAttribute(HtmlTextWriterAttribute.Type, "button");
writer.AddAttribute(HtmlTextWriterAttribute.Class, "addButton");
writer.AddAttribute(HtmlTextWriterAttribute.Onclick, "openModal(" + id + ");");
writer.AddAttribute(HtmlTextWriterAttribute.Value, "+");
writer.RenderBeginTag(HtmlTextWriterTag.Input);
writer.RenderEndTag();
writer.RenderEndTag();
writer.RenderBeginTag(HtmlTextWriterTag.Ol);
}

if (parentID != -1)
{

foreach (TreeNode _Node in this.Nodes)
{
if (_Node.Value == parentID.ToString())
{
writer.AddAttribute("data-id", id.ToString());
writer.AddAttribute(HtmlTextWriterAttribute.Id, "dd-item" + id);
writer.AddAttribute(HtmlTextWriterAttribute.Class, "dd-item dd3-item");
writer.RenderBeginTag(HtmlTextWriterTag.Li);

writer.AddAttribute(HtmlTextWriterAttribute.Class, "dd-handle dd3-handle");
writer.RenderBeginTag(HtmlTextWriterTag.Div);
writer.Write(id);
writer.RenderEndTag();

writer.AddAttribute(HtmlTextWriterAttribute.Class, "dd3-content");
writer.RenderBeginTag(HtmlTextWriterTag.Div);
writer.Write(text);
writer.AddAttribute(HtmlTextWriterAttribute.Type, "button");
writer.AddAttribute(HtmlTextWriterAttribute.Class, "addButton");
writer.AddAttribute(HtmlTextWriterAttribute.Value, "+");
writer.AddAttribute(HtmlTextWriterAttribute.Onclick, "openModal(" + id + ");");
writer.RenderBeginTag(HtmlTextWriterTag.Input);
writer.RenderEndTag();
writer.RenderEndTag();

TreeNode childNode = new TreeNode(text, id.ToString());
//_Node.ChildNodes.Add(childNode);
GetChildNodes(id, parentID, childNode, writer);

writer.RenderEndTag();

}
}

}

}

private void GetChildNodes(int id, int parentID, TreeNode node, HtmlTextWriter writer)
{

try
{

var filter = Filter<T>(Items, ParentColumnID, id.ToString());
if (filter.Count > 0)
{
writer.RenderBeginTag(HtmlTextWriterTag.Ol);
foreach (T listItem in filter)
{
type = typeof(T);

//if (i == 10) break;

parentColumn = type.GetProperties().Where(r => r.Name == ParentColumnID).FirstOrDefault();

valueColumn = type.GetProperties().Where(r => r.Name == ValueMember).FirstOrDefault();

displayColumn = type.GetProperties().Where(r => r.Name == DisplayMember).FirstOrDefault();

v = Convert.ToInt32(valueColumn.GetValue(listItem));

p = Convert.ToInt32(parentColumn.GetValue(listItem));

text = displayColumn.GetValue(listItem).ToString();
writer.AddAttribute("data-id", v.ToString());
writer.AddAttribute(HtmlTextWriterAttribute.Class, "dd-item dd3-item");
writer.AddAttribute(HtmlTextWriterAttribute.Id, "dd-item" + v);
writer.RenderBeginTag(HtmlTextWriterTag.Li);

writer.AddAttribute(HtmlTextWriterAttribute.Class, "dd-handle dd3-handle");
writer.RenderBeginTag(HtmlTextWriterTag.Div);
writer.Write(id);
writer.RenderEndTag();
writer.AddAttribute(HtmlTextWriterAttribute.Class, "dd3-content");
writer.RenderBeginTag(HtmlTextWriterTag.Div);
writer.Write(text);
writer.AddAttribute(HtmlTextWriterAttribute.Type, "button");
writer.AddAttribute(HtmlTextWriterAttribute.Class, "addButton");
writer.AddAttribute(HtmlTextWriterAttribute.Value, "+");
writer.AddAttribute(HtmlTextWriterAttribute.Onclick, "openModal(" + v + ");");
writer.RenderBeginTag(HtmlTextWriterTag.Input);
writer.RenderEndTag();
writer.RenderEndTag();
//writer.RenderBeginTag(HtmlTextWriterTag.Ol);
TreeNode child = new TreeNode(v.ToString(), p.ToString());

node.ChildNodes.Add(child);
GetChildNodes(v, id, child, writer);

//writer.RenderEndTag();
writer.RenderEndTag();

}
writer.RenderEndTag();

}

}
catch (Exception ex)
{

}

}

private List<T> Filter<T>(
List<T> collection,
string property,
string filterValue)
{
var filteredCollection = new List<T>();
foreach (var item in collection)
{
// To check multiple properties use,
// item.GetType().GetProperties(BindingFlags.Public | BindingFlags.Instance)

var propertyInfo =
item.GetType()
.GetProperty(property, BindingFlags.Public | BindingFlags.Instance);
if (propertyInfo == null)
throw new NotSupportedException("property given does not exists");

string propertyValue = propertyInfo.GetValue(item, null).ToString();
if (propertyValue == filterValue)
filteredCollection.Add(item);
}

return filteredCollection;
}

}

2) OrganizationOrderControl.ascx

<%@ Control Language="C#" AutoEventWireup="true" CodeFile="OrganizationOrderControl.ascx.cs" Inherits="OrganizationChart_OrganizationOrderControl" %>
<script src="../Scripts/jquery.nestable.js"></script>
<link rel="stylesheet" href="http://code.jquery.com/ui/1.11.4/themes/smoothness/jquery-ui.css">

<script src="http://code.jquery.com/ui/1.11.4/jquery-ui.js"></script>

<style type="text/css">
.addButton {
position: absolute;

right: 10px;
top: 5px;
}

.required {
color:red;
display:inline;
}

.tree ol {
padding-top: 20px; position: relative;

transition: all 0.5s;
-webkit-transition: all 0.5s;
-moz-transition: all 0.5s;
}

.tree li {
float: left; text-align: center;
list-style-type: none;
position: relative;
padding: 20px 1px 0 1px;

transition: all 0.5s;
-webkit-transition: all 0.5s;
-moz-transition: all 0.5s;
}

/*We will use ::before and ::after to draw the connectors*/

.tree li::before, .tree li::after{
content: '';
position: absolute; top: 0; right: 50%;
border-top: 1px solid #ccc;
width: 50%; height: 20px;
}
.tree li::after{
right: auto; left: 50%;
border-left: 1px solid #ccc;
}

/*We need to remove left-right connectors from elements without
any siblings*/
.tree li:only-child::after, .tree li:only-child::before {
display: none;
}

/*Remove space from the top of single children*/
.tree li:only-child{ padding-top: 0;}

/*Remove left connector from first child and
right connector from last child*/
.tree li:first-child::before, .tree li:last-child::after{
border: 0 none;
}
/*Adding back the vertical connector to the last nodes*/
.tree li:last-child::before{
border-right: 1px solid #ccc;
border-radius: 0 5px 0 0;
-webkit-border-radius: 0 5px 0 0;
-moz-border-radius: 0 5px 0 0;
}
.tree li:first-child::after{
border-radius: 5px 0 0 0;
-webkit-border-radius: 5px 0 0 0;
-moz-border-radius: 5px 0 0 0;
}

/*Time to add downward connectors from parents*/
.tree ol ol::before{
content: '';
position: absolute; top: 0; left: 50%;
border-left: 1px solid #ccc;
width: 0; height: 20px;
}

.cf:after { visibility: hidden; display: block; font-size: 0; content: " "; clear: both; height: 0; }
* html .cf { zoom: 1; }
*:first-child+html .cf { zoom: 1; }

html { margin: 0; padding: 0; }
body { font-size: 100%; margin: 0; padding: 1.75em; font-family: 'Helvetica Neue', Arial, sans-serif; }

h1 { font-size: 1.75em; margin: 0 0 0.6em 0; }

a { color: #2996cc; }
a:hover { text-decoration: none; }

p { line-height: 1.5em; }
.small { color: #666; font-size: 0.875em; }
.large { font-size: 1.25em; }

/**
* Nestable
*/

.dd { position: relative; display: block; margin: 0; padding: 0; max-width: 600px; list-style: none; font-size: 13px; line-height: 20px; }

.dd-list { display: block; position: relative; margin: 0; padding: 0; list-style: none; }
.dd-list .dd-list { padding-left: 30px; }
.dd-collapsed .dd-list { display: none; }

.dd-item,
.dd-empty,
.dd-placeholder { display: block; position: relative; margin: 0; padding: 0; min-height: 20px; font-size: 13px; line-height: 20px; }

.dd-handle { display: block; height: 30px; margin: 5px 0; padding: 5px 10px; color: #333; text-decoration: none; font-weight: bold; border: 1px solid #ccc;
background: #fafafa;
background: -webkit-linear-gradient(top, #fafafa 0%, #eee 100%);
background: -moz-linear-gradient(top, #fafafa 0%, #eee 100%);
background: linear-gradient(top, #fafafa 0%, #eee 100%);
-webkit-border-radius: 3px;
border-radius: 3px;
box-sizing: border-box; -moz-box-sizing: border-box;
}
.dd-handle:hover { color: #2ea8e5; background: #fff; }

.dd-item > button { display: block; position: relative; cursor: pointer; float: left; width: 25px; height: 20px; margin: 5px 0; padding: 0; text-indent: 100%; white-space: nowrap; overflow: hidden; border: 0; background: transparent; font-size: 12px; line-height: 1; text-align: center; font-weight: bold; }
.dd-item > button:before { content: '+'; display: block; position: absolute; width: 100%; text-align: center; text-indent: 0; }
.dd-item > button[data-action="collapse"]:before { content: '-'; }

.dd-placeholder,
.dd-empty { margin: 5px 0; padding: 0; min-height: 30px; background: #f2fbff; border: 1px dashed #b6bcbf; box-sizing: border-box; -moz-box-sizing: border-box; }
.dd-empty { border: 1px dashed #bbb; min-height: 100px; background-color: #e5e5e5;
background-image: -webkit-linear-gradient(45deg, #fff 25%, transparent 25%, transparent 75%, #fff 75%, #fff),
-webkit-linear-gradient(45deg, #fff 25%, transparent 25%, transparent 75%, #fff 75%, #fff);
background-image: -moz-linear-gradient(45deg, #fff 25%, transparent 25%, transparent 75%, #fff 75%, #fff),
-moz-linear-gradient(45deg, #fff 25%, transparent 25%, transparent 75%, #fff 75%, #fff);
background-image: linear-gradient(45deg, #fff 25%, transparent 25%, transparent 75%, #fff 75%, #fff),
linear-gradient(45deg, #fff 25%, transparent 25%, transparent 75%, #fff 75%, #fff);
background-size: 60px 60px;
background-position: 0 0, 30px 30px;
}

.dd-dragel { position: absolute; pointer-events: none; z-index: 9999; }
.dd-dragel > .dd-item .dd-handle { margin-top: 0; }
.dd-dragel .dd-handle {
-webkit-box-shadow: 2px 4px 6px 0 rgba(0,0,0,.1);
box-shadow: 2px 4px 6px 0 rgba(0,0,0,.1);
}

/**
* Nestable Extras
*/

.nestable-lists { display: block; clear: both; padding: 30px 0; width: 100%; border: 0; border-top: 2px solid #ddd; border-bottom: 2px solid #ddd; }

#nestable-menu { padding: 0; margin: 20px 0; }

#nestable-output,
#nestable2-output { width: 100%; height: 7em; font-size: 0.75em; line-height: 1.333333em; font-family: Consolas, monospace; padding: 5px; box-sizing: border-box; -moz-box-sizing: border-box; }

#nestable2 .dd-handle {
color: #fff;
border: 1px solid #999;
background: #bbb;
background: -webkit-linear-gradient(top, #bbb 0%, #999 100%);
background: -moz-linear-gradient(top, #bbb 0%, #999 100%);
background: linear-gradient(top, #bbb 0%, #999 100%);
}
#nestable2 .dd-handle:hover { background: #bbb; }
#nestable2 .dd-item > button:before { color: #fff; }

@media only screen and (min-width: 700px) {

.dd { float: left; width: 48%; }
.dd + .dd { margin-left: 2%; }

}

.dd-hover > .dd-handle { background: #2ea8e5 !important; }

/**
* Nestable Draggable Handles
*/

.dd3-content { display: block; height: 30px; margin: 5px 0; padding: 5px 10px 5px 40px; color: #333; text-decoration: none; font-weight: bold; border: 1px solid #ccc;
background: #fafafa;
background: -webkit-linear-gradient(top, #fafafa 0%, #eee 100%);
background: -moz-linear-gradient(top, #fafafa 0%, #eee 100%);
background: linear-gradient(top, #fafafa 0%, #eee 100%);
-webkit-border-radius: 3px;
border-radius: 3px;
box-sizing: border-box; -moz-box-sizing: border-box;
}
.dd3-content:hover { color: #2ea8e5; background: #fff; }

.dd-dragel > .dd3-item > .dd3-content { margin: 0; }

.dd3-item > button { margin-left: 30px; }

.dd3-handle { position: absolute; margin: 0; left: 0; top: 0; cursor: pointer; width: 30px; text-indent: 100%; white-space: nowrap; overflow: hidden;
border: 1px solid #aaa;
background: #ddd;
background: -webkit-linear-gradient(top, #ddd 0%, #bbb 100%);
background: -moz-linear-gradient(top, #ddd 0%, #bbb 100%);
background: linear-gradient(top, #ddd 0%, #bbb 100%);
border-top-right-radius: 0;
border-bottom-right-radius: 0;
}
.dd3-handle:before { content: '≡'; display: block; position: absolute; left: 0; top: 3px; width: 100%; text-align: center; text-indent: 0; color: #fff; font-size: 20px; font-weight: normal; }
.dd3-handle:hover { background: #ddd; }

</style>
<script >

var dialog,parentId, pluginArrayArg = new Array();

$(document).ready(
function()
{
var form,
// From http://www.whatwg.org/specs/web-apps/current-work/multipage/states-of-the-type-attribute.html#e-mail-state-%28type=email%29
emailRegex = /^[a-zA-Z0-9.!#$%&'*+\/=?^_`{|}~-]+@[a-zA-Z0-9](?:[a-zA-Z0-9-]{0,61}[a-zA-Z0-9])?(?:\.[a-zA-Z0-9](?:[a-zA-Z0-9-]{0,61}[a-zA-Z0-9])?)*$/,
name = $(<%= string.Format("'#{0}'",sname.ClientID) %>),
sType = $(<%= string.Format("'#{0}'",sType.ClientID) %>),
allFields = $([]).add(name).add(sType);

function checkLength(o, n, min, max) {
if (o.val().length > max || o.val().length < min) {
o.addClass("ui-state-error");
updateTips("Length of " + n + " must be between " +
min + " and " + max + ".");
return false;
} else {
return true;
}
}





dialog = $("#dialog-form").dialog({
autoOpen: false,
height: 300,
width: 350,
modal: true,
buttons: {
"Create Sub node": function () {

var valid = true;
allFields.removeClass("ui-state-error");



valid = valid && checkLength(name, "Structure Name", 1, 200);
if (valid) {

if (confirm('Are you sure?')) {
$(<%= string.Format("'#{0}'",newname.ClientID) %>).val(name.val());
$(<%= string.Format("'#{0}'",newtype.ClientID) %>).val(sType.val());

eval("<%= Page.ClientScript.GetPostBackEventReference(btnSave, string.Empty) %>");
$(<%= string.Format("'#{0}'",newpid.ClientID) %>).val("");
$(<%= string.Format("'#{0}'",newname.ClientID) %>).val("");
$(<%= string.Format("'#{0}'",newtype.ClientID) %>).val(1);
name.val("");
sType.val(1);
parentId = 0;
dialog.dialog("close");
}
}
},
Cancel: function () {
dialog.dialog("close");
}
},
close: function () {
allFields.removeClass("ui-state-error");
}
});

form = dialog.find("form").on("submit", function (event) {
event.preventDefault();
addNode();
});





//$('#nestable3').nestable();
var updateOutput = function (e) {
var list = e.length ? e : $(e.target),
output = list.data('output');

if (window.JSON) {
output.val(JSON.stringify(list.nestable('serialize')));//, null, 2));
} else {
output.val('JSON browser support required for this demo.');
}
};

// activate Nestable for list 1
$( <%= string.Format("'#{0}'",nestable3.ClientID) %>).nestable({
group: 1
})
.on('change', updateOutput);

updateOutput($( <%= string.Format("'#{0}'",nestable3.ClientID) %>).data('output', $(<%= string.Format("'#{0}'",nestableoutput.ClientID) %>)));
}
);

function openModal(parent) {
dialog.dialog("open");
$(<%= string.Format("'#{0}'",newpid.ClientID) %>).val(parent);
}


</script>
<input type="hidden" id="nestableoutput" runat="server"></input>
<input type="hidden" id="newpid" runat="server"></input>
<input type="hidden" id="newname" runat="server"></input>
<input type="hidden" id="newtype" runat="server"></input>
<div class="cf nestable-lists">



<div class="dd" id="nestable3" runat="server">

</div>

</div>

<div id="dialog-form" title="Create Sub node">

<fieldset>
<label for="sname">Structure Name<p class="required">*</p></label><br />
<input type="text" runat="server" name="sname" id="sname" class="text ui-widget-content ui-corner-all"><br />


<input type="submit" runat="server" id="btnAdd" tabindex="-1" style="position:absolute; top:-1000px">

</fieldset>

</div>
<asp:Button ID="btnSave" OnClientClick="return confirm('Are you sure?');" runat="server" OnClick="btnClick_Click" Text="Save Changes" />

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