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Unable to get value of the property 'innerHTML': object is null or undefined

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Grid

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

Clive Hoggar asked on 10 Apr 2012, 08:01 PM

Hi

I am trying to open a detail page by clicking a row in the grid and passing the detail page the value of the ID column, with Javascript like this:

<script type="text/javascript">

function RowClick(sender, eventArgs) {

var MasterTableView = eventArgs.get_tableView();

var row = MasterTableView.get_dataItems()[eventArgs.get_itemIndexHierarchical()];

var cell = MasterTableView.getCellByColumnUniqueName(row, "ID");

var oWnd = radopen("Details.aspx?ID=" + cell.innerHTML);

}

</script>

But when I click a row of the grid I get the error " Unable to get value of the property 'innerHTML': object is null or undefined"
I must be missing something but I just can't see it. What am I doing wrong?

Please point me in the right direction someone!

Thanks

Clive

PS The aspx page is like this

<asp:SqlDataSource ID="SqlDataSource1" runat="server"

ConnectionString="<%$ ConnectionStrings:bessacarrConnectionString %>"

SelectCommand="SELECT [ID], [DateStart], [DateEnd], [RallyName], [Location] FROM [tblRallies] WHERE DateDiff(day, getDate(), [DateStart]) > 1 ORDER BY [DateStart]">

</asp:SqlDataSource>

<telerik:RadGrid ID="RadGrid1" runat="server" DataSourceID="SqlDataSource1"

GridLines="None" Skin="WebBlue" AutoGenerateColumns="False">

<ClientSettings>

<ClientEvents OnRowClick="RowClick" />

</ClientSettings>

<MasterTableView datakeynames="ID" datasourceid="SqlDataSource1">

<CommandItemSettings ExportToPdfText="Export to Pdf"></CommandItemSettings>

<RowIndicatorColumn>

<HeaderStyle Width="20px"></HeaderStyle>

</RowIndicatorColumn>

<ExpandCollapseColumn>

<HeaderStyle Width="20px"></HeaderStyle>

</ExpandCollapseColumn>

<Columns>

<telerik:GridBoundColumn DataField="ID" DataType="System.Int32" HeaderText="ID"

ReadOnly="True" SortExpression="ID" UniqueName="ID" Visible="False">

</telerik:GridBoundColumn>

<telerik:GridTemplateColumn DataField="DateStart" DataType="System.DateTime"

HeaderText="Start" SortExpression="DateStart" UniqueName="DateStart">

<EditItemTemplate>

<asp:TextBox ID="DateStartTextBox" runat="server"

Text='<%# Bind("DateStart") %>'></asp:TextBox>

</EditItemTemplate>

<ItemTemplate>

<asp:Label ID="DateStartLabel" runat="server" Text='<%# Eval("DateStart", "{0:dd/M/yyyy}") %>'></asp:Label>

</ItemTemplate>

</telerik:GridTemplateColumn>

<telerik:GridTemplateColumn DataField="DateEnd" DataType="System.DateTime"

HeaderText="End" SortExpression="DateEnd" UniqueName="DateEnd">

<EditItemTemplate>

<asp:TextBox ID="DateEndTextBox" runat="server" Text='<%# Bind("DateEnd") %>'></asp:TextBox>

</EditItemTemplate>

<ItemTemplate>

<asp:Label ID="DateEndLabel" runat="server" Text='<%# Eval("DateEnd", "{0:dd/M/yyyy}") %>'></asp:Label>

</ItemTemplate>

</telerik:GridTemplateColumn>

<telerik:GridBoundColumn DataField="RallyName" HeaderText="RallyName"

SortExpression="RallyName" UniqueName="RallyName">

</telerik:GridBoundColumn>

<telerik:GridBoundColumn DataField="Location" HeaderText="Location"

SortExpression="Location" UniqueName="Location">

</telerik:GridBoundColumn>

</Columns>

</MasterTableView>

<HeaderContextMenu EnableImageSprites="True" CssClass="GridContextMenu GridContextMenu_Default"></HeaderContextMenu>

</telerik:RadGrid>

<telerik:RadWindowManager ID="RadWindowManager1" runat="server">

</telerik:RadWindowManager>

Unable to get value of the property 'innerHTML': object is null or undefined

2 Answers, 1 is accepted