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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...161 162 163 164 165 166 167 168 169 170 ... Item 165001 to 166000 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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