Question

So I have a gridview within a gridview (I have a one to many table) my first gridview is working well, but my second gridview has a sqldatasource that has a select parameter(the default value was just for testing)

<asp:SqlDataSource ID="dsCountryByTripID" runat="server" 
        ConnectionString="<%$ ConnectionStrings:bahDatabase %>" 
        SelectCommand="spSelectCitiesByTripID" SelectCommandType="StoredProcedure">
        <SelectParameters>
        <asp:Parameter Type="Int32" Name="tripID"  DefaultValue="56" />
        </SelectParameters>
    </asp:SqlDataSource>

during my Gridview1 row databound I am trying to grab the columns that match the tripID. But dsCountryByTripID which is my datasource, is only going inputted with the last tripID.

 protected void GridView1_RowDataBound1(object sender, GridViewRowEventArgs e)
    {
        GridView gv2 = (GridView)e.Row.FindControl("GridView2");
        if (e.Row.RowType == DataControlRowType.DataRow)
        {
            dsCountryByTripID.SelectParameters.Clear();
            DataRowView drv = (DataRowView)e.Row.DataItem;
            string tripID = (drv["pkiTripId"]).ToString();
            dsCountryByTripID.SelectParameters.Add("tripID", DbType.Int32, tripID);
            //gv2.DataBind();
            //e.Row.DataBind();

        }
    }

Answer 1

here you can read why it only executes the last “tripId”: http://msdn.microsoft.com/en-us/library/tw738475(VS.80).aspx
The sql datasource only gets executed at the end of the page, so every time you go through a row the tripID is overriden.

Do you really need to use the datasource? Can’t you use ado.net or something different for you dataaccess?

Hope this helps.