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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...211 212 213 214 215 216 217 218 219 220 ... Item 211001 to 212000 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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