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3 nested RadGrids - performance issue

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This is a migrated thread and some comments may be shown as answers.

Alexander asked on 17 Mar 2012, 10:40 AM

Hi

I'm trying to implement client side hierarchial RadGrids as described here:
http://blogs.telerik.com/vladimirenchev/posts/08-09-09/how-to-telerik-radgrid-master-detail-client-side-data-binding-using-linq-to-sql-and-webservice.aspx

This works great for 2 levels of hierarchy (RadGrid1 has a NestedView in which RadGrid2 is placed).
But as soon as I try to implement third level of hierarchy and add a RadGrid3 inside of NestedView of RadGrid2 I get dramatically worse performance - about 2 minutes to get page rendered (against 7 seconds for page with 2 levels). Page contains just pure markup, without any data bound.

Please advise, what can be done in order to workaround this performance issue.

These are the test samples I've made:
First one is a quite fast 2 levels case (contains just a label inside of RadGrid2 NestedView), second is a slow one with RadGrid3 instead of label:

Label:

<%@ Page Language="C#" AutoEventWireup="true" CodeFile="HierarchyTest-Label.aspx.cs" Inherits="HierarchyTest" %>

<%@ Register TagPrefix="telerik" Namespace="Telerik.Web.UI" Assembly="Telerik.Web.UI" %>

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">

<html xmlns="http://www.w3.org/1999/xhtml">

<head runat="server">

<title></title>

</head>

<body>

<script type="text/javascript" language="javascript">

RadGrid1_Command = function () {

console.log('RadGrid1_Command');

}

RadGrid2_Command = function () {

console.log('RadGrid2_Command');

}

RadGrid3_Command = function () {

console.log('RadGrid3_Command');

}

RadGrid1_HierarchyExpanding = function (sender, args) {

console.log('RadGrid1_HierarchyExpanding');

}

RadGrid2_HierarchyExpanding = function (sender, args) {

console.log('RadGrid2_HierarchyExpanding');

}

</script>

<form id="form1" runat="server">

<div>

<asp:ScriptManager ID="ScriptManager1" runat="server" />

<telerik:RadGrid ID="RadGrid1" runat="server" AllowPaging="True" AllowSorting="False"

GridLines="None" PageSize="10" Width="97%" Skin="Windows7">

<ClientSettings AllowColumnHide="True" AllowRowHide="True" AllowColumnsReorder="True"

ReorderColumnsOnClient="True">

<Resizing EnableRealTimeResize="True" ResizeGridOnColumnResize="True" AllowColumnResize="true"

ClipCellContentOnResize="false"></Resizing>

<ClientEvents OnCommand="RadGrid1_Command" OnHierarchyExpanding="RadGrid1_HierarchyExpanding" />

</ClientSettings>

<MasterTableView TableLayout="Fixed" AutoGenerateColumns="false" DataKeyNames="ServerId"

ClientDataKeyNames="ServerId" HierarchyLoadMode="Client">

<Columns>

<telerik:GridBoundColumn DataType="System.String" DataField="Server" HeaderText="Server"

UniqueName="Server" />

<telerik:GridBoundColumn DataType="System.String" DataField="Username" HeaderText="Username"

UniqueName="Username" />

<telerik:GridBoundColumn DataType="System.String" DataField="ServerId" UniqueName="ServerId"

Visible="false" />

</Columns>

<NestedViewTemplate>

<telerik:RadGrid runat="server" ID="RadGrid2" AllowPaging="False" AllowSorting="False"

GridLines="None" Width="97%" Skin="Windows7">

<ClientSettings AllowColumnHide="True" AllowRowHide="True" AllowColumnsReorder="True"

ReorderColumnsOnClient="True">

<Resizing EnableRealTimeResize="True" ResizeGridOnColumnResize="True" AllowColumnResize="true"

ClipCellContentOnResize="false"></Resizing>

<ClientEvents OnCommand="RadGrid2_Command" OnHierarchyExpanding="RadGrid2_HierarchyExpanding" />

</ClientSettings>

<MasterTableView TableLayout="Fixed" AutoGenerateColumns="false" ClientDataKeyNames="Id"

HierarchyLoadMode="Client">

<Columns>

<telerik:GridImageColumn DataType="System.String" HeaderText="St" DataImageUrlFormatString="Images\{0}.gif"

DataImageUrlFields="Active" ImageWidth="16px" ImageHeight="16px" HeaderStyle-Width="26px" />

<telerik:GridBoundColumn DataType="System.String" DataField="JobName" UniqueName="JobName"

HeaderText="Job Name" HeaderStyle-Width="170px" />

<telerik:GridBoundColumn DataType="System.String" DataField="Description" UniqueName="Description"

HeaderText="Description" HeaderStyle-Width="250px" />

<telerik:GridBoundColumn DataType="System.String" DataField="Result" UniqueName="Result"

HeaderText="Result" />

<telerik:GridBoundColumn DataType="System.String" DataField="NextRunStr" UniqueName="NextRunStr"

HeaderText="Next run" HeaderStyle-Width="120px" />

<telerik:GridBoundColumn DataType="System.String" DataField="DateCreatedStr" UniqueName="DateCreatedStr"

HeaderText="Date created" HeaderStyle-Width="120px" />

<telerik:GridBoundColumn DataType="System.String" DataField="Status" UniqueName="Status"

HeaderText="Status" />

<telerik:GridBoundColumn DataType="System.String" DataField="Id" UniqueName="ID"

Visible="false" />

</Columns>

<NestedViewTemplate>

<asp:Label runat="server" Text="Level 3" />

</NestedViewTemplate>

</MasterTableView>

</telerik:RadGrid>

</NestedViewTemplate>

</MasterTableView>

</telerik:RadGrid>

</div>

</form>

</body>

</html>

RadGrid:

<%@ Page Language="C#" AutoEventWireup="true" CodeFile="HierarchyTest-Label.aspx.cs" Inherits="HierarchyTest" %>

<%@ Register TagPrefix="telerik" Namespace="Telerik.Web.UI" Assembly="Telerik.Web.UI" %>

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">

<html xmlns="http://www.w3.org/1999/xhtml">

<head id="Head1" runat="server">

<title></title>

</head>

<body>

<script type="text/javascript" language="javascript">

RadGrid1_Command = function () {

console.log('RadGrid1_Command');

}

RadGrid2_Command = function () {

console.log('RadGrid2_Command');

}

RadGrid3_Command = function () {

console.log('RadGrid3_Command');

}

RadGrid1_HierarchyExpanding = function (sender, args) {

console.log('RadGrid1_HierarchyExpanding');

}

RadGrid2_HierarchyExpanding = function (sender, args) {

console.log('RadGrid2_HierarchyExpanding');

}

</script>

<form id="form1" runat="server">

<div>

<asp:ScriptManager ID="ScriptManager1" runat="server" />

<telerik:RadGrid ID="RadGrid1" runat="server" AllowPaging="True" AllowSorting="False"

GridLines="None" PageSize="10" Width="97%" Skin="Windows7">

<ClientSettings AllowColumnHide="True" AllowRowHide="True" AllowColumnsReorder="True"

ReorderColumnsOnClient="True">

<Resizing EnableRealTimeResize="True" ResizeGridOnColumnResize="True" AllowColumnResize="true"

ClipCellContentOnResize="false"></Resizing>

<ClientEvents OnCommand="RadGrid1_Command" OnHierarchyExpanding="RadGrid1_HierarchyExpanding" />

</ClientSettings>

<MasterTableView TableLayout="Fixed" AutoGenerateColumns="false" DataKeyNames="ServerId"

ClientDataKeyNames="ServerId" HierarchyLoadMode="Client">

<Columns>

<telerik:GridBoundColumn DataType="System.String" DataField="Server" HeaderText="Server"

UniqueName="Server" />

<telerik:GridBoundColumn DataType="System.String" DataField="Username" HeaderText="Username"

UniqueName="Username" />

<telerik:GridBoundColumn DataType="System.String" DataField="ServerId" UniqueName="ServerId"

Visible="false" />

</Columns>

<NestedViewTemplate>

<telerik:RadGrid runat="server" ID="RadGrid2" AllowPaging="False" AllowSorting="False"

GridLines="None" Width="97%" Skin="Windows7">

<ClientSettings AllowColumnHide="True" AllowRowHide="True" AllowColumnsReorder="True"

ReorderColumnsOnClient="True">

<Resizing EnableRealTimeResize="True" ResizeGridOnColumnResize="True" AllowColumnResize="true"

ClipCellContentOnResize="false"></Resizing>

<ClientEvents OnCommand="RadGrid2_Command" OnHierarchyExpanding="RadGrid2_HierarchyExpanding" />

</ClientSettings>

<MasterTableView TableLayout="Fixed" AutoGenerateColumns="false" ClientDataKeyNames="Id"

HierarchyLoadMode="Client">

<Columns>

<telerik:GridImageColumn DataType="System.String" HeaderText="St" DataImageUrlFormatString="Images\{0}.gif"

DataImageUrlFields="Active" ImageWidth="16px" ImageHeight="16px" HeaderStyle-Width="26px" />

<telerik:GridBoundColumn DataType="System.String" DataField="JobName" UniqueName="JobName"

HeaderText="Job Name" HeaderStyle-Width="170px" />

<telerik:GridBoundColumn DataType="System.String" DataField="Description" UniqueName="Description"

HeaderText="Description" HeaderStyle-Width="250px" />

<telerik:GridBoundColumn DataType="System.String" DataField="Result" UniqueName="Result"

HeaderText="Result" />

<telerik:GridBoundColumn DataType="System.String" DataField="NextRunStr" UniqueName="NextRunStr"

HeaderText="Next run" HeaderStyle-Width="120px" />

<telerik:GridBoundColumn DataType="System.String" DataField="DateCreatedStr" UniqueName="DateCreatedStr"

HeaderText="Date created" HeaderStyle-Width="120px" />

<telerik:GridBoundColumn DataType="System.String" DataField="Status" UniqueName="Status"

HeaderText="Status" />

<telerik:GridBoundColumn DataType="System.String" DataField="Id" UniqueName="ID"

Visible="false" />

</Columns>

<NestedViewTemplate>

<telerik:RadGrid runat="server" ID="RadGrid3" AllowPaging="False" AllowSorting="False"

GridLines="None">

<ClientSettings AllowColumnHide="False" AllowRowHide="False" AllowColumnsReorder="False"

ReorderColumnsOnClient="False">

<ClientEvents OnCommand="RadGrid3_Command" />

</ClientSettings>

<MasterTableView TableLayout="Fixed" AutoGenerateColumns="false" DataKeyNames="TaskId">

<Columns>

<telerik:GridImageColumn DataType="System.String" HeaderText="St" DataImageUrlFormatString="Images\{0}.gif"

DataImageUrlFields="Active" ImageWidth="16px" ImageHeight="16px" HeaderStyle-Width="26px" />

<telerik:GridBoundColumn DataType="System.String" DataField="TaskName" UniqueName="TaskName"

HeaderText="Task Name" HeaderStyle-Width="170px" />

<telerik:GridBoundColumn DataType="System.String" DataField="TaskId" UniqueName="TaskId"

HeaderStyle-Width="170px" Visible="False" />

</Columns>

</MasterTableView>

</telerik:RadGrid>

</NestedViewTemplate>

</MasterTableView>

</telerik:RadGrid>

</NestedViewTemplate>

</MasterTableView>

</telerik:RadGrid>

</div>

</form>

</body>

</html>

1 Answer, 1 is accepted

answered on 21 Mar 2012, 01:22 PM

Hello Alexander,

The performance when using nested RadGrid controls declared in NestedViewTemplate degrades exponentially. In such scenarios you could use a DetailTables approach will increase performance substantially or follow the described general performance optimization techniques.

All the best,
Antonio Stoilkov
the Telerik team

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