AspxGridview 不支持所指定的方法

[挂日的木木]

 Protected Sub grid_CustomCallback(ByVal sender As Object, ByVal e As DevExpress.Web.ASPxGridView.ASPxGridViewCustomCallbackEventArgs)
        If e.Parameters = "Cancel" Then
            grid.CancelEdit()
        End If
        If e.Parameters = "Update" Then
            grid.UpdateEdit()

        End If
        If Session("Dt2").ToString() <> "" Then
            If CType(Session("Dt2"), DataTable).Rows.Count > 0 Then
                grid.DataSourceID = ""
                grid.DataSource = CType(Session("Dt2"), DataTable)
            End If
        Else
            grid.DataBind()
        End If


        grid.DataBind()
    End Sub

 Protected Sub grid_RowUpdating(ByVal sender As Object, ByVal e As DevExpress.Web.Data.ASPxDataUpdatingEventArgs)
        Dim EditDt As DataTable = CType(ViewState("Dt1"), DataTable).Clone()
        Dim NewDt As DataTable
        Dim Dt1 As DataTable
        If Session("Dt2").ToString() <> "" Then
            If CType(Session("Dt2"), DataTable).Rows.Count > 0 Then
                EditDt = CType(Session("Dt2"), DataTable)
            End If
        End If

        If EditDt.Rows.Count > 0 Then
            Dt1 = EditDt.Copy()
        Else
            Dt1 = CType(ViewState("Dt1"), DataTable)
        End If
        NewDt = Dt1.Clone()
        Dim dr() As DataRow
        dr = Dt1.Select("1=1")
        For i As Integer = 0 To dr.Length - 1
            If dr(i)("key_seq") = e.NewValues("key_seq") Then
                dr(i)("type") = e.NewValues("type")
                dr(i)("ship_to_addr") = e.NewValues("ship_to_addr")
                dr(i)("billing_addr") = e.NewValues("billing_addr")
                dr(i)("description") = e.NewValues("description")
                dr(i)("country") = e.NewValues("country")
                dr(i)("vatax_no") = e.NewValues("vatax_no")
                dr(i)("ean_code") = e.NewValues("ean_code")
                dr(i)("address1") = e.NewValues("address1")
                dr(i)("address_txt1") = e.NewValues("address_txt1")
                dr(i)("address_txt2") = e.NewValues("address_txt2")
                dr(i)("address_txt3") = e.NewValues("address_txt3")
                dr(i)("district_txt") = e.NewValues("district_txt")
                dr(i)("zip_code") = e.NewValues("zip_code")
                dr(i)("city_txt") = e.NewValues("city_txt")
                dr(i)("state_txt") = e.NewValues("state_txt")
            End If
            NewDt.ImportRow(CType(dr(i), DataRow))
        Next

        Session("Dt2") = NewDt

        grid.DataSourceID = ""
        grid.DataSource = NewDt
        grid.DataBind()

  <EditForm>
              ......
                     <td style="white-space: nowrap; width: 150px" align="right" colspan="2">
                                                                            <input type="button" value=" O K " onclick='grid.PerformCallback("Update");' />
                                                                            <input type="button" value="Cancel" onclick='grid.PerformCallback("Cancel");' />
                                                                        </td>
.............                       
  </EditForm>

[阿日斯朗]

我也遇到同样的问题，解决不了

[小路子的宝]

我也是 不知道怎么解决