Specified argument was out of the range of valid values. Parameter name: index

Question

I have to disable the hyperlink in the gridview depending on the result of the condition in my code behind, however i always get an error of Specified argument was out of the range of valid values. Parameter name: index

here is my gridview:

<asp:GridView ID="GridView1" runat="server" DataSourceID="SqlDataSource1" 
    AllowPaging="True" DataKeyNames="v_id" 
    AutoGenerateColumns="False" AllowSorting="True" CellPadding="4" 
    CssClass="gridview">
    <RowStyle BackColor="#EFF3FB"/>
        <Columns>
            <asp:BoundField DataField="ship_name" HeaderText="Vessel Name" SortExpression="ship_name">
            <HeaderStyle CssClass ="tblheader2" />
            </asp:BoundField>
            <asp:BoundField DataField="gross_tonnage" HeaderText="Gross Tonnage" SortExpression="gross_tonnage">
            <HeaderStyle CssClass ="tblheader2" />
            </asp:BoundField>
            <asp:BoundField DataField="regional_homeport" HeaderText="Region" SortExpression="region">
            <HeaderStyle CssClass ="tblheader2" />
            </asp:BoundField>
            <asp:BoundField DataField="owner_name" HeaderText="Owner" SortExpression="owner_name">
            <HeaderStyle CssClass ="tblheader2" />
            </asp:BoundField>
            <asp:BoundField DataField="cfvgl_validity_start" HeaderText="Date Issued" SortExpression="cfvgl_validity_start" DataFormatString="{0:d}">
            <HeaderStyle CssClass ="tblheader2" />
            </asp:BoundField>
            <asp:BoundField DataField="cfvgl_validity_end" HeaderText="Expiry Date" SortExpression="cfvgl_validity_end" DataFormatString="{0:d}">
            <HeaderStyle CssClass ="tblheader2" />
            </asp:BoundField>
             <asp:CommandField EditText="Select" ControlStyle-font-Underline="false" HeaderText ="View History" ControlStyle-forecolor="blue"  ShowSelectButton="True"  SelectText="History" ItemStyle-CssClass="links">
            <HeaderStyle  CssClass ="tblheader2"/>
            </asp:CommandField >

            <asp:TemplateField>
                <ItemTemplate >
                    <asp:HyperLink ID="cfvgl" runat ="server" Target ="_blank" NavigateUrl ='<%# Eval("v_id", "~/frqd/printBFARCFVGL.aspx?CFVGLVesselID={0}")%>' Font-Underline = "false" ForeColor ="blue" CssClass ="links" >CFVGL</asp:HyperLink>
                </ItemTemplate>
                <HeaderStyle CssClass ="tblheader2" />
            </asp:TemplateField>

            <asp:TemplateField>
                <ItemTemplate>
                     <%--FGRVesselID query  string of crystal report--%>
                    <asp:Hyperlink ID="fgr" runat="server" Target ="_blank" NavigateUrl='<%#Eval("v_id", "~/operator/printBFARFGR.aspx?FGRVesselID={0}") %>' Text ="FGR" font-underline="false" ForeColor="blue" CssClass="links"></asp:Hyperlink>
                </Itemtemplate>
                <HeaderStyle CssClass ="tblheader2" />
            </asp:TemplateField>

            <asp:TemplateField>
                    <ItemTemplate>
                        <asp:LinkButton ID="LinkButton2" runat="server" CssClass ="links" ForeColor ="blue" Font-Underline ="false" Width ="100px" PostBackUrl="#openModal">Add Violation</asp:LinkButton>
                    </ItemTemplate>
                    <HeaderStyle CssClass ="tblheader2" />
            </asp:TemplateField>

            <asp:BoundField DataField="vessel_type" HeaderText="Vessel Type" SortExpression="vessel_type">
            <HeaderStyle CssClass ="tblheader2" />
            </asp:BoundField>
        </Columns>
    <FooterStyle CssClass="gridviewfooter"/>
    <PagerStyle CssClass="gridviewfooter" ForeColor="White" HorizontalAlign="Center" />
    <SelectedRowStyle BackColor="#D1DDF1" Font-Bold="True" ForeColor="#333333" />
    <HeaderStyle BackColor="#507CD1" Font-Bold="True" ForeColor="White" />
    <EditRowStyle BackColor="#2461BF" />
    <AlternatingRowStyle BackColor="White" />
    <RowStyle CssClass="gridviewrow"/>
    <EmptyDataTemplate>There are no records to display.</EmptyDataTemplate>
</asp:GridView>

Here is my code behind:

Protected Sub GridView1_RowDataBound(ByVal sender As Object, ByVal e As System.Web.UI.WebControls.GridViewRowEventArgs) Handles GridView1.RowDataBound
    Dim vesseltype As String = e.Row.Cells(10).Text

    Select Case vesseltype
        Case 1
            e.Row.Cells(10).Text = "Catcher"
        Case 2
            e.Row.Cells(10).Text = "Carrier"
        Case 3
            e.Row.Cells(10).Text = "Escortboat"
        Case 4
            e.Row.Cells(10).Text = "Sonarboat"
        Case 5
            e.Row.Cells(10).Text = "Lightboat"
        Case 6
            e.Row.Cells(10).Text = "Ranger Boat"
        Case 7
            e.Row.Cells(10).Text = "Skiffboat"
        Case 8
            e.Row.Cells(10).Text = "Tanker"
    End Select

    If e.Row.Cells(10).Text = "Catcher" Then
        e.Row.Cells(9).Enabled = True
    Else
        e.Row.Cells(9).Enabled = False
        e.Row.Cells(9).Text = "N/A"
    End If
End Sub

Answer 1

You need to add an extra check for the RowType, as shown below:

Protected Sub GridView1_RowDataBound(sender As Object, e As GridViewRowEventArgs) Handles GridView1.RowDataBound
    If e.Row.RowType = DataControlRowType.DataRow Then
        Dim vesseltype As String = e.Row.Cells(10).Text
        Select Case vesseltype
            Case 1
                e.Row.Cells(10).Text = "Catcher"
            Case 2
                e.Row.Cells(10).Text = "Carrier"
            Case 3
                e.Row.Cells(10).Text = "Escortboat"
            Case 4
                e.Row.Cells(10).Text = "Sonarboat"
            Case 5
                e.Row.Cells(10).Text = "Lightboat"
            Case 6
                e.Row.Cells(10).Text = "Ranger Boat"
            Case 7
                e.Row.Cells(10).Text = "Skiffboat"
            Case 8
                e.Row.Cells(10).Text = "Tanker"
        End Select

        If e.Row.Cells(10).Text = "Catcher" Then
            e.Row.Cells(9).Enabled = True

        Else
            e.Row.Cells(9).Enabled = False
            e.Row.Cells(9).Text = "N/A"
        End If
    End If
End Sub

Otherwise, when it binds the GridView.Footer, it'll throw an "out of range exception" as it doesn't have the same number of cells as the DataRow.