Create WebGrid in Server-side programmatically but Error in Sorting

uwei — Thu, 30 Mar 2017 03:31:50 GMT

I want to sort when user click colums, but there is error when it clicked. (see attach: Error01.png)

There is not struncture of root table in webgrid.

only the code like:

<ISWebGrid:WebGrid>
<LayoutSettings RowHeightDefault="26px" AllowSorting="Yes">
...
</LayoutSettings>
</ISWebGrid:WebGrid>

How can I fix it?

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