Urgent - No mapping exists from object type Telerik.Web.UI.GridTableCell to a known managed provider native type.

[Abdul Kadar]

Hi I tried the radgrid examples from TelerikRadControlsAspNet_tutorial.pdf
I tried the Adding Detail Information on the grid ( 2.1.3. Adding Detail information).When I run the application i got the error msg,when I clicking on the + node.

No mapping exists from object type Telerik.Web.UI.GridTableCell to a known managed provider native type.

Pls help me regarding this

[Abdul Kadar]

If e.CommandName = "ExpandCollapse" Then

Session("CustomerID") = e.Item.Cells(2).Text

End If

This error occurs because of missing of the word (.text) in e.Item.Cell(2).Text in the itemcommand event of the grid.