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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...191 192 193 194 195 196 197 198 199 200 ... Item 190001 to 191000 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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