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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...191 192 193 194 195 196 197 198 199 200 ... Item 193001 to 194000 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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