<%@ Page Language="C#" AutoEventWireup="true" CodeBehind="default.aspx.cs" Inherits="JQSuiteASPNETExample.examples.grid.treegrid.filebrowser._default" %>
<%@ Register Assembly="Trirand.Web" TagPrefix="trirand" Namespace="Trirand.Web.UI.WebControls" %>
<!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>jqGrid ASP.NET example with SqlDataSource</title>
<!-- The jQuery UI theme that will be used by the grid -->
<link rel="stylesheet" type="text/css" media="screen" href="http://ajax.aspnetcdn.com/ajax/jquery.ui/1.8.16/themes/redmond/jquery-ui.css" />
<!-- The jQuery UI theme extension jqGrid needs -->
<link rel="stylesheet" type="text/css" media="screen" href="/themes/ui.jqgrid.css" />
<!-- jQuery runtime minified -->
<script src="http://ajax.microsoft.com/ajax/jquery/jquery-1.7.1.min.js" type="text/javascript"></script>
<!-- The localization file we need, English in this case -->
<script src="/js/trirand/i18n/grid.locale-en.js" type="text/javascript"></script>
<!-- The jqGrid client-side javascript -->
<script src="/js/trirand/jquery.jqGrid.min.js" type="text/javascript"></script>
<!-- This jQuery UI library is needed only for the code tabs, not needed by the grid per se -->
<style type="text/css">
body, html { font-size: 80%; }
</style>
</head>
<body>
<form id="form1" runat="server">
<trirand:JQGrid runat="server" ID="FileDataGrid" Width="650px" Height="350px">
<Columns>
<trirand:JQGridColumn DataField="ID" PrimaryKey="True" Visible="false" />
<trirand:JQGridColumn DataField="Name" Width="350" Sortable="false" />
<trirand:JQGridColumn DataField="Size" Width="100" Sortable="false"/>
<trirand:JQGridColumn DataField="DateCreated" HeaderText="Date Created" Width="100" Sortable="false" />
<trirand:JQGridColumn DataField="LastModified" HeaderText="Last Modified" Width="100" Sortable="false" />
</Columns>
<TreeGridSettings
Enabled="true"
ExpandedIcon="ui-icon-folder-open"
CollapsedIcon="ui-icon-folder-collapsed"
LeafIcon="ui-icon-document"
/>
</trirand:JQGrid>
<br /><br />
<trirand:codetabs runat="server" id="tabs"></trirand:codetabs>
</form>
</body>
</html>
using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;
using System.Web.UI;
using System.Web.UI.WebControls;
using Trirand.Web.UI.WebControls;
using System.Collections;
namespace JQSuiteASPNETExample.examples.grid.treegrid.filebrowser
{
public partial class _default : System.Web.UI.Page
{
public class DirectoryEntry
{
public string ID { get; set; }
public bool IsDir { get; set; }
public string Name { get; set; }
public string Size { get; set; }
public string DateCreated { get; set; }
public string LastModified { get; set; }
public bool tree_expanded { get; set; }
public bool tree_leaf { get; set; }
public int tree_level { get; set; }
public string tree_parent { get; set; }
}
protected void Page_Load(object sender, EventArgs e)
{
if (FileDataGrid.AjaxCallBackMode == AjaxCallBackMode.RequestData)
{
string startingPath = Request.MapPath("~/examples");
JQGridTreeExpandData expandData = FileDataGrid.GetTreeExpandData();
if (expandData.ParentID != null)
// GetDirectoryFrom hash returns the full path of the folder per its key (in the ID field of the row)
startingPath = GetDirectoryFromHash(expandData.ParentID);
// Take a snapshot of the file system.
System.IO.DirectoryInfo dir = new System.IO.DirectoryInfo(startingPath);
IEnumerable dirList = dir.GetDirectories("*.*",
System.IO.SearchOption.TopDirectoryOnly);
IEnumerable fileList = dir.GetFiles("*.*",
System.IO.SearchOption.TopDirectoryOnly);
// ********************************************************************************************
// when selecting rows, you need to specify some or all of the following reserved fields
// tree_level - the level of the row in the tree hierarchy. 0 is for root row.
// tree_leaf - if the row is leaf (no child rows). This will make it non-expandable and will have an alternative icon
// tree_expanded - if the row is expanded by default or not
// tree_parent - the primary key (ID) of the parent row (only applicable for child rows)
// tree_loaded - true/false - if the tree nodes are already loaded. Can be used to show several levels expanded by default.
// ********************************************************************************************
var dirs = from directory in dirList
orderby directory.Name
select new DirectoryEntry
{
// Use Hashtable to make sure there is unique key per folder fullname
ID = AddDirectoryToHash(directory.FullName),
IsDir = true,
Name = "" + directory.Name + "",
Size = "[dir]",
DateCreated = directory.CreationTime.ToString("d"),
LastModified = directory.LastWriteTime.ToString("d"),
tree_parent = expandData.ParentID,
tree_expanded = false,
tree_leaf = false,
tree_level = expandData.ParentLevel + 1
};
var files = from file in fileList
orderby file.Name
select new DirectoryEntry
{
// ID is the primary key and must be set to an unique key
// GUIDs can be used without the "-" - not allowed for IDs in HTML
ID = Guid.NewGuid().ToString().Replace("-", ""),
IsDir = false,
Name = file.Name,
Size = file.Length.ToString(),
DateCreated = file.CreationTime.ToString("d"),
LastModified = file.LastWriteTime.ToString("d"),
tree_parent = expandData.ParentID,
tree_leaf = true,
tree_level = expandData.ParentLevel + 1
};
var allFilesAndFolders = files.Concat(dirs)
.AsQueryable()
.OrderBy(f => f.Name)
.OrderBy(f => f.IsDir == false);
FileDataGrid.DataSource = allFilesAndFolders;
FileDataGrid.DataBind();
}
}
private string AddDirectoryToHash(string fullName)
{
Hashtable directoryHash = new Hashtable();
if (Session["directoryHash"] != null)
directoryHash = Session["directoryHash"] as Hashtable;
string key = directoryHash.Count.ToString();
directoryHash.Add(key, fullName);
Session["directoryHash"] = directoryHash;
return key;
}
private string GetDirectoryFromHash(string key)
{
Hashtable directoryHash = new Hashtable();
if (Session["directoryHash"] != null)
directoryHash = Session["directoryHash"] as Hashtable;
return directoryHash[key] as string;
}
}
}
Switch theme:
Theming is based on the very popular jQuery
ThemeRoller standard. This is the same theming mechanism used by jQuery UI and is now a de-facto standard for jQuery based components.
The benefits of using ThemeRoller are huge. We can offer a big set of ready to use themes created by professional designers, including Windows-like themes (Redmond), Apple-like theme (Cupertino), etc.
In addition to that any jQuery UI controls on the same page will pick the same theme.
Last, but not least, you can always roll your own ThemeRoller theme, using the superb
Theme Editor
To use a theme, simply reference 2 Css files in your Html <head> section - the ThemeRoller theme you wish to use, and the jqGrid own ThemeRoller Css file. For example (Redmond theme):
<link rel="stylesheet" type="text/css" media="screen" href="/themes/redmond/jquery-ui-1.8.2.custom.css" />
<link rel="stylesheet" type="text/css" media="screen" href="/themes/ui.jqgrid.css" />