This code is not resolved correctly, at the same method is defined with 3 different signatures. Only on of these method signatues does match the supplied number of parameters.
<asp:ObjectDataSource ID="SvDS" runat="server" SelectMethod="GetVViewBySkjalId" TypeName="Tls.BusinessLogic.VViewUtility" OnSelecting="SvDS_Selecting">
<SelectParameters>
<asp:Parameter Name="skjalId" Type="Int32" />
<asp:Parameter Name="isEnda" Type="boolean" DefaultValue="False" />
</SelectParameters>
</asp:ObjectDataSource>
see screen shot