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Virtualization

ID	Contact Title	Contact Name	Country	Rating


1	Accountant	Jaime Yorres	Italy	1 2 3 4 5
2	Sales Agent	Paul Henriot	France	1 2 3 4 5
3	Sales Agent	Elizabeth Lincoln	Italy	1 2 3 4 5
4	Sales Representative	Matti Karttunen	England	1 2 3 4 5
5	Sales Consultant	Paul Henriot	Austria	1 2 3 4 5
6	Sales Manager	Patricio Simpson	Spain	1 2 3 4 5
7	Marketing Manager	Matti Karttunen	USA	1 2 3 4 5
8	Accountant	Antonio Moreno	Brazil	1 2 3 4 5
9	Accounting Manager	Pascale Cartrain	England	1 2 3 4 5
10	Sales Associate	Georg Pipps	Austria	1 2 3 4 5
11	Sales Manager	Howard Snyder	Spain	1 2 3 4 5
12	Sales Representative	Matti Karttunen	Spain	1 2 3 4 5
13	Sales Consultant	Matti Karttunen	USA	1 2 3 4 5
14	Sales Agent	Elizabeth Lincoln	England	1 2 3 4 5
15	Sales Representative	Hanna Moos	Spain	1 2 3 4 5
16	Sales Manager	Hanna Moos	France	1 2 3 4 5
17	Sales Consultant	Hanna Moos	Italy	1 2 3 4 5
18	Accountant	Hanna Moos	France	1 2 3 4 5
19	Sales Representative	Pascale Cartrain	Spain	1 2 3 4 5
20	Owner	Jaime Yorres	Germany	1 2 3 4 5
21	Sales Agent	Howard Snyder	Spain	1 2 3 4 5
22	Sales Associate	Hanna Moos	Italy	1 2 3 4 5
23	Sales Agent	Howard Snyder	France	1 2 3 4 5
24	Sales Manager	Jaime Yorres	Spain	1 2 3 4 5
25	Sales Consultant	Antonio Moreno	Spain	1 2 3 4 5
26	Sales Representative	Paul Henriot	Austria	1 2 3 4 5
27	Accountant	Howard Snyder	Germany	1 2 3 4 5
28	Accountant	Georg Pipps	Bulgaria	1 2 3 4 5
29	Sales Representative	Paul Henriot	Germany	1 2 3 4 5
30	Accountant	Patricio Simpson	USA	1 2 3 4 5
31	Marketing Manager	Hanna Moos	England	1 2 3 4 5
32	Sales Manager	Pascale Cartrain	Germany	1 2 3 4 5
33	Sales Manager	Matti Karttunen	England	1 2 3 4 5
34	Owner	Matti Karttunen	Argentina	1 2 3 4 5
35	Owner	Patricio Simpson	Argentina	1 2 3 4 5
36	Accountant	Paul Henriot	Bulgaria	1 2 3 4 5
37	Sales Manager	Elizabeth Lincoln	Austria	1 2 3 4 5
38	Accounting Manager	Pascale Cartrain	France	1 2 3 4 5
39	Accounting Manager	Pascale Cartrain	Austria	1 2 3 4 5
40	Accounting Manager	Hanna Moos	Argentina	1 2 3 4 5
41	Marketing Manager	Matti Karttunen	Italy	1 2 3 4 5
42	Marketing Manager	Georg Pipps	Germany	1 2 3 4 5
43	Owner	Matti Karttunen	France	1 2 3 4 5
44	Marketing Manager	Paul Henriot	Argentina	1 2 3 4 5
45	Sales Associate	Antonio Moreno	Bulgaria	1 2 3 4 5
46	Sales Associate	Howard Snyder	Brazil	1 2 3 4 5
47	Sales Representative	Matti Karttunen	Germany	1 2 3 4 5
48	Marketing Manager	Hanna Moos	England	1 2 3 4 5
49	Sales Associate	Antonio Moreno	Italy	1 2 3 4 5
50	Accounting Manager	Howard Snyder	Austria	1 2 3 4 5
51	Marketing Assistant	Jaime Yorres	England	1 2 3 4 5
52	Marketing Assistant	Georg Pipps	Germany	1 2 3 4 5
53	Accountant	Patricio Simpson	Bulgaria	1 2 3 4 5
54	Sales Manager	Patricio Simpson	France	1 2 3 4 5
55	Accounting Manager	Howard Snyder	Austria	1 2 3 4 5
56	Sales Agent	Paul Henriot	USA	1 2 3 4 5
57	Sales Manager	Patricio Simpson	Italy	1 2 3 4 5
58	Marketing Assistant	Matti Karttunen	Bulgaria	1 2 3 4 5
59	Accountant	Howard Snyder	Germany	1 2 3 4 5
60	Sales Consultant	Hanna Moos	Argentina	1 2 3 4 5
61	Accountant	Paul Henriot	Germany	1 2 3 4 5
62	Accountant	Hanna Moos	Bulgaria	1 2 3 4 5
63	Accounting Manager	Pascale Cartrain	France	1 2 3 4 5
64	Sales Representative	Georg Pipps	Brazil	1 2 3 4 5
65	Sales Agent	Georg Pipps	Spain	1 2 3 4 5
66	Sales Agent	Patricio Simpson	Italy	1 2 3 4 5
67	Sales Associate	Hanna Moos	Austria	1 2 3 4 5
68	Marketing Manager	Patricio Simpson	England	1 2 3 4 5
69	Accountant	Howard Snyder	Italy	1 2 3 4 5
70	Marketing Manager	Matti Karttunen	Bulgaria	1 2 3 4 5
71	Sales Representative	Georg Pipps	Italy	1 2 3 4 5
72	Accounting Manager	Jaime Yorres	USA	1 2 3 4 5
73	Marketing Assistant	Matti Karttunen	Argentina	1 2 3 4 5
74	Marketing Manager	Patricio Simpson	France	1 2 3 4 5
75	Sales Representative	Howard Snyder	England	1 2 3 4 5
76	Owner	Antonio Moreno	Austria	1 2 3 4 5
77	Sales Representative	Patricio Simpson	France	1 2 3 4 5
78	Marketing Assistant	Patricio Simpson	Germany	1 2 3 4 5
79	Sales Representative	Matti Karttunen	England	1 2 3 4 5
80	Sales Agent	Patricio Simpson	Italy	1 2 3 4 5
81	Marketing Assistant	Matti Karttunen	Italy	1 2 3 4 5
82	Accounting Manager	Patricio Simpson	Brazil	1 2 3 4 5
83	Sales Manager	Matti Karttunen	France	1 2 3 4 5
84	Sales Manager	Howard Snyder	Argentina	1 2 3 4 5
85	Sales Agent	Hanna Moos	England	1 2 3 4 5
86	Accounting Manager	Patricio Simpson	Germany	1 2 3 4 5
87	Sales Representative	Pascale Cartrain	Spain	1 2 3 4 5
88	Sales Agent	Paul Henriot	Austria	1 2 3 4 5
89	Sales Manager	Hanna Moos	England	1 2 3 4 5
90	Sales Agent	Elizabeth Lincoln	Brazil	1 2 3 4 5
91	Marketing Assistant	Pascale Cartrain	Austria	1 2 3 4 5
92	Owner	Jaime Yorres	France	1 2 3 4 5
93	Accountant	Antonio Moreno	Italy	1 2 3 4 5
94	Sales Manager	Pascale Cartrain	Germany	1 2 3 4 5
95	Marketing Assistant	Elizabeth Lincoln	France	1 2 3 4 5
96	Sales Manager	Howard Snyder	Bulgaria	1 2 3 4 5
97	Accountant	Pascale Cartrain	Germany	1 2 3 4 5
98	Sales Associate	Howard Snyder	England	1 2 3 4 5
99	Accounting Manager	Howard Snyder	Bulgaria	1 2 3 4 5
100	Sales Associate	Hanna Moos	Bulgaria	1 2 3 4 5


...161 162 163 164 165 166 167 168 169 170 ... Item 166001 to 167000 of 300000 Page: of 300 GoPage size:

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Columns
- ID
- Contact Title
- Contact Name
- Country
- Rating

About this demo
C#
VB
Download demo code files
Isolate this demo as a stand-alone application

RadGrid's virtualization feature allows you to handle hundreds of thousands of rows without negatively impacting the user experience. The control achieves this thanks to its ItemsPerView property allowing you to control the number of items loaded at a time. Users can now scroll, as well as show, hide, resize and reorder columns without any waiting time.

This demo shows how quickly Telerik's ASP.NET DataGrid can handle user interactions with 300,000 items. You can configure the component to allow scrolling through the entire data set or only through the current page by using EnableCurrentPageScrollOnly property,.

<%@ Page Language="vb" AutoEventWireup="false" CodeFile="DefaultVB.aspx.vb" Inherits="Telerik.GridExamplesVBNET.Performance.Virtualization.DefaultVB" %>

<%@ Register TagPrefix="telerik" Namespace="Telerik.Web.UI" Assembly="Telerik.Web.UI" %>
<%@ Register TagPrefix="qsf" Namespace="Telerik.QuickStart" %>
<!DOCTYPE html>
<html xmlns='http://www.w3.org/1999/xhtml'>
<head runat="server">
    <title>Telerik ASP.NET Example</title>
    <link href="styles.css" rel="stylesheet" />
</head>
<body>
    <form id="form1" runat="server">
    <telerik:RadScriptManager runat="server" ID="RadScriptManager1" />
    <telerik:RadSkinManager ID="RadSkinManager1" runat="server" ShowChooser="true" />
    <telerik:RadAjaxLoadingPanel runat="server" ID="RadAjaxLoadingPanel1"></telerik:RadAjaxLoadingPanel>
    <telerik:RadAjaxPanel runat="server" ID="RadAjaxPanel" LoadingPanelID="RadAjaxLoadingPanel1" CssClass="demo-container">
        <telerik:RadGrid RenderMode="Lightweight" ID="RadGrid1" runat="server"  AutoGenerateColumns="false"
            AllowSorting="true" GroupingEnabled="false"
            EnableHeaderContextMenu="true" AllowPaging="true" PageSize="1000" OnNeedDataSource="RadGrid1_NeedDataSource">
            <MasterTableView TableLayout="Fixed">
                <Columns>
                    <telerik:GridBoundColumn UniqueName="ID" HeaderText="ID" HeaderStyle-Width="50px" DataField="ID"></telerik:GridBoundColumn>
                    <telerik:GridBoundColumn UniqueName="ContactTitle" HeaderText="Contact Title" HeaderStyle-Width="150px" DataField="ContactTitle"></telerik:GridBoundColumn>
                    <telerik:GridBoundColumn UniqueName="ContactName" HeaderText="Contact Name" HeaderStyle-Width="150" DataField="ContactName"></telerik:GridBoundColumn>
                    <telerik:GridBoundColumn UniqueName="Country" HeaderText="Country" HeaderStyle-Width="100px" DataField="Country"></telerik:GridBoundColumn>
                    <telerik:GridRatingColumn UniqueName="Rating" HeaderText="Rating" HeaderStyle-Width="100px" DataField="Rating"></telerik:GridRatingColumn>
                </Columns>
            </MasterTableView>
            <ClientSettings ReorderColumnsOnClient="true" AllowColumnsReorder="true" ColumnsReorderMethod="Reorder">
                <Virtualization EnableVirtualization="true" InitiallyCachedItemsCount="2000"
                    LoadingPanelID="RadAjaxLoadingPanel1" ItemsPerView="100"/>
                <Scrolling AllowScroll="true" UseStaticHeaders="true" ScrollHeight="500px" />
                <Resizing AllowColumnResize="true" />
            </ClientSettings>
            <PagerStyle Mode="NextPrevNumericAndAdvanced"></PagerStyle>
        </telerik:RadGrid>
    </telerik:RadAjaxPanel>
    </form>
</body>
</html>

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