Refactored/gist:6776801

## gistfile1.txt
<%@ Page Language="C#" AutoEventWireup="true" Inherits="System.Web.UI.Page" Debug="true" %>
<%@ Import Namespace="Sitecore" %>
<%@ Import Namespace="Sitecore.Configuration" %>
<%@ Import Namespace="Sitecore.Jobs" %>
<%@ Import Namespace="Sitecore.Search" %>

<!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 runat="server">
        <title>Rebuild database crawlers</title>
        <script runat="server">

            protected void Page_Load(object sender, EventArgs e)
            {
                if (!IsPostBack)
                {
                    ShowIndexes();
                }
            }

            protected void RebuildBtn_Click(object sender, EventArgs args)
            {
                foreach (ListItem item in cblIndexes.Items)
                {
                    if (item.Selected)
                    {
                        var options = new JobOptions("RebuildSearchIndex", "index", Client.Site.Name, new Builder(item.Value), "Rebuild");
                        options.AfterLife = TimeSpan.FromMinutes(1.0);
                        JobManager.Start(options);
                    }
                }
            }

            private IDictionary<string, Index> GetSearchIndexes()
            {
                var configuration = Factory.CreateObject("search/configuration", true) as SearchConfiguration;
                return configuration.Indexes;
            }

            private void ShowIndexes()
            {
                foreach (var index in GetSearchIndexes())
                {
                    cblIndexes.Items.Add(new ListItem(index.Key, index.Key));
                }
            }

            public class Builder
            {
                private readonly string _indexName;

                public Builder(string indexName)
                {
                    _indexName = indexName;
                }

                public void Rebuild()
                {
                    var index = SearchManager.GetIndex(_indexName);
                    if (index != null)
                    {
                        index.Rebuild();
                    }
                }
            }

        </script>
    </head>
    <body>
        <form id="form1" runat="server">
            <div>
                <table>
                    <thead>
                        <tr>
                            <td>Available crawlers</td>
                        </tr>
                    </thead>
                    <tr>
                        <td>
                            <asp:CheckBoxList ID="cblIndexes" runat="server">
                            </asp:CheckBoxList>
                        </td>
                    </tr>
                    <tr>
                        <td>
                            <asp:Button ID="btnRebuild" runat="server" Text="Rebuild" OnClick="RebuildBtn_Click" />
                        </td>
                    </tr>
                </table>
            </div>
        </form>
    </body>
</html>
	<%@ Page Language="C#" AutoEventWireup="true" Inherits="System.Web.UI.Page" Debug="true" %>
	<%@ Import Namespace="Sitecore" %>
	<%@ Import Namespace="Sitecore.Configuration" %>
	<%@ Import Namespace="Sitecore.Jobs" %>
	<%@ Import Namespace="Sitecore.Search" %>

	<!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 runat="server">
	<title>Rebuild database crawlers</title>
	<script runat="server">

	protected void Page_Load(object sender, EventArgs e)
	{
	if (!IsPostBack)
	{
	ShowIndexes();
	}
	}

	protected void RebuildBtn_Click(object sender, EventArgs args)
	{
	foreach (ListItem item in cblIndexes.Items)
	{
	if (item.Selected)
	{
	var options = new JobOptions("RebuildSearchIndex", "index", Client.Site.Name, new Builder(item.Value), "Rebuild");
	options.AfterLife = TimeSpan.FromMinutes(1.0);
	JobManager.Start(options);
	}
	}
	}

	private IDictionary<string, Index> GetSearchIndexes()
	{
	var configuration = Factory.CreateObject("search/configuration", true) as SearchConfiguration;
	return configuration.Indexes;
	}

	private void ShowIndexes()
	{
	foreach (var index in GetSearchIndexes())
	{
	cblIndexes.Items.Add(new ListItem(index.Key, index.Key));
	}
	}

	public class Builder
	{
	private readonly string _indexName;

	public Builder(string indexName)
	{
	_indexName = indexName;
	}

	public void Rebuild()
	{
	var index = SearchManager.GetIndex(_indexName);
	if (index != null)
	{
	index.Rebuild();
	}
	}
	}

	</script>
	</head>
	<body>
	<form id="form1" runat="server">
	<div>
	<table>
	<thead>
	<tr>
	<td>Available crawlers</td>
	</tr>
	</thead>
	<tr>
	<td>
	<asp:CheckBoxList ID="cblIndexes" runat="server">
	</asp:CheckBoxList>
	</td>
	</tr>
	<tr>
	<td>
	<asp:Button ID="btnRebuild" runat="server" Text="Rebuild" OnClick="RebuildBtn_Click" />
	</td>
	</tr>
	</table>
	</div>
	</form>
	</body>
	</html>