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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...161 162 163 164 165 166 167 168 169 170 ... Item 163001 to 164000 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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