How to Add ControlParameter to SqlDataSource at Runtime?

Hi!

My question is exactly the subject.

My Web Form has only a GridView and a DetailsView, there is no SqlDataSource at project time, i create the SqlDataSource at runtime using code like this in the Page_Load event: (I NEED IT TO BE CREATED DYNAMICALLY)

1Dim SQLDSAs SqlDataSource =New SqlDataSource()23 SQLDS.ID ="CustomerDataSource"4 SQLDS.ConnectionString = ConfigurationManager.ConnectionStrings("connectionstring").ConnectionString5 SQLDS.SelectCommand ="select customerid,companyname,contactname,country from customers"6 SQLDS.InsertCommand ="insert into customers(customerid,companyname,contactname,country) values(@.customerid,@.companyname,@.contactname,@.country)"7 SQLDS.UpdateCommand ="update customers set companyname=@.companyname,contactname=@.contactname,country=@.country where customerid=@.customerid"8 SQLDS.DeleteCommand ="delete from customers where customerid=@.customerid"910 SQLDS.UpdateParameters.Add(New Parameter("companyname"))11 SQLDS.UpdateParameters.Add(New Parameter("contactname"))12 SQLDS.UpdateParameters.Add(New Parameter("country"))13 SQLDS.UpdateParameters.Add(New Parameter("customerid"))1415 Page.Controls.Add(SQLDS)1617If Not Page.IsPostBackThen18 GridView1.DataKeyNames =New String() {"customerid"}19 GridView1.DataSourceID = SQLDS.ID2021' ... and so on

The DetailsView1 uses the same SqlDataSource to show data, but i could not find a way to synchronize the DetailsView1 with the GridView1 when a record is selected in the GridView1.

How can I synchronize the DetailsView?

I played with the ControlParameter but i can't find either how to add a ControlParameter in code, is there a way? Every place talking about ControlParameter shows something like this:

 
1<asp:SqlDataSource ID="SqlDataSource1" runat="server"2 ConnectionString="<%$ ConnectionStrings:Pubs%>"3 SelectCommand="SELECT [au_id], [au_lname], [au_fname], [state] FROM [authors] WHERE [state] = @.state">4 <SelectParameters>5 <asp:ControlParameter Name="state" ControlID="DropDownList1" PropertyName="SelectedValue" />6 </SelectParameters>7</asp:SqlDataSource>8
 

Ok. OK. But my SqlDataSource is created dynamically. Any ideas on how to solve this problem?

Thanks!

Here is how to add it in code:

ControlParameter cp = new ControlParameter("state", "DropDownList1", "SelectedValue");

SqlDataSource1.SelectParameters.Add(cp);

|||cant get it to work.|||

using Northwind database.

i just want to synchronize the DetailsView to show the record selected in the GridView.

thanks!

the code of the web form:

ASPX.VB

1Imports SqlHelper2Imports System.Data3Imports System.Data.SqlClient45PartialClass Customers6Inherits System.Web.UI.Page78910Protected Sub Page_Load(ByVal senderAs Object,ByVal eAs System.EventArgs)Handles Me.Load1112Dim SQLDS_GVAs SqlDataSource =New SqlDataSource()13Dim SQLDS_DVAs SqlDataSource =New SqlDataSource()1415' GridView16 SQLDS_GV.ID ="CustomerDataSource_GV"17 SQLDS_GV.ConnectionString = ConfigurationManager.ConnectionStrings("connectionstring").ConnectionString18 SQLDS_GV.SelectCommand ="select customerid,companyname,contactname,country from customers"19 SQLDS_GV.InsertCommand ="insert into customers(customerid,companyname,contactname,country) values(@.custid,@.companyname,@.contactname,@.country)"20 SQLDS_GV.UpdateCommand ="update customers set companyname=@.companyname,contactname=@.contactname,country=@.country where custid=@.custid"21 SQLDS_GV.DeleteCommand ="delete from customers where customerid=@.custid"2223 SQLDS_GV.UpdateParameters.Add(New Parameter("companyname"))24 SQLDS_GV.UpdateParameters.Add(New Parameter("contactname"))25 SQLDS_GV.UpdateParameters.Add(New Parameter("country"))26 SQLDS_GV.UpdateParameters.Add(New Parameter("custid"))2728'DetailsView29 SQLDS_DV.ID ="CustomerDataSource_DV"30 SQLDS_DV.ConnectionString = ConfigurationManager.ConnectionStrings("connectionstring").ConnectionString31 SQLDS_DV.SelectCommand ="select customerid,companyname,contactname,country from customers"32 SQLDS_DV.InsertCommand ="insert into customers(customerid,companyname,contactname,country) values(@.custid,@.companyname,@.contactname,@.country)"33 SQLDS_DV.UpdateCommand ="update customers set companyname=@.companyname,contactname=@.contactname,country=@.country where customerid=@.custid"34 SQLDS_DV.DeleteCommand ="delete from customers where customerid=@.custid"3536 SQLDS_DV.UpdateParameters.Add(New Parameter("companyname"))37 SQLDS_DV.UpdateParameters.Add(New Parameter("contactname"))38 SQLDS_DV.UpdateParameters.Add(New Parameter("country"))39 SQLDS_DV.UpdateParameters.Add(New Parameter("custid"))4041'SQLDS_DV.SelectParameters.Add("customerid", "GridView1.SelectedValue")4243 Page.Controls.Add(SQLDS_GV)44 Page.Controls.Add(SQLDS_DV)4546If Not Page.IsPostBackThen4748 GridView1.DataKeyNames =New String() {"customerid"}49 GridView1.DataSourceID = SQLDS_GV.ID5051' CRIAR AS COLUNAS MANUALMENTE52 GridView1.AutoGenerateColumns =False53 GridView1.AllowPaging =True54 GridView1.PageSize = 105556Dim bf1As BoundField =New BoundField()57Dim bf2As BoundField =New BoundField()58Dim bf3As BoundField =New BoundField()59Dim bf4As BoundField =New BoundField()6061 bf1.HeaderText ="ID"62 bf1.DataField ="customerid"63 bf1.ReadOnly =True64 bf1.SortExpression ="customerid"6566 bf2.HeaderText ="Empresa"67 bf2.DataField ="companyname"68 bf2.SortExpression ="companyname"6970 bf3.HeaderText ="Contato"71 bf3.DataField ="contactname"72 bf3.SortExpression ="contactname"7374 bf4.HeaderText ="País"75 bf4.DataField ="country"76 bf4.SortExpression ="country"7778Dim cfAs CommandField =New CommandField()79 cf.ButtonType = ButtonType.Button80 cf.ShowCancelButton =True81 cf.ShowEditButton =True82 cf.ShowSelectButton =True83 cf.ShowDeleteButton =True8485 cf.CancelText ="Cancelar"86 cf.EditText ="Alterar"87 cf.DeleteText ="Excluir"88 cf.UpdateText ="Gravar"89 cf.SelectText ="Selecionar"9091 GridView1.Columns.Add(cf)92 GridView1.Columns.Add(bf1)93 GridView1.Columns.Add(bf2)94 GridView1.Columns.Add(bf3)95 GridView1.Columns.Add(bf4)96'GridView1.Columns.Add(bf5)9798 ' ****************************99100 'Dim cp As ControlParameter = New ControlParameter("customerid", "GridView1", "SelectedValue")101 'SQLDS_DV.SelectParameters.Add(cp)102 'SQLDS_DV.SelectParameters.Add("customerid", "GridView1.SelectedValue")103104105 DetailsView1.DataKeyNames =New String() {"customerid"}106 DetailsView1.DataSourceID = SQLDS_DV.ID107108 DetailsView1.AutoGenerateRows =False109110 Dim bf1_DVAs BoundField =New BoundField()111Dim bf2_DVAs BoundField =New BoundField()112Dim bf3_DVAs BoundField =New BoundField()113Dim bf4_DVAs BoundField =New BoundField()114115 bf1_DV.HeaderText ="ID"116 bf1_DV.DataField ="customerid"117 bf1_DV.ReadOnly =True118 bf1_DV.SortExpression ="customerid"119120 bf2_DV.HeaderText ="Empresa"121 bf2_DV.DataField ="companyname"122 bf2_DV.SortExpression ="companyname"123124 bf3_DV.HeaderText ="Contato"125 bf3_DV.DataField ="contactname"126 bf3_DV.SortExpression ="contactname"127128 bf4_DV.HeaderText ="País"129 bf4_DV.DataField ="country"130 bf4_DV.SortExpression ="country"131132Dim cf_DVAs CommandField =New CommandField()133 cf_DV.ButtonType = ButtonType.Button134 cf_DV.ShowCancelButton =True135 cf_DV.ShowEditButton =True136 cf_DV.ShowSelectButton =True137 cf_DV.ShowDeleteButton =True138139 cf_DV.CancelText ="Cancelar"140 cf_DV.EditText ="Alterar"141 cf_DV.DeleteText ="Excluir"142 cf_DV.UpdateText ="Gravar"143 cf_DV.SelectText ="Selecionar"144145 DetailsView1.Fields.Add(bf1_DV)146 DetailsView1.Fields.Add(bf2_DV)147 DetailsView1.Fields.Add(bf3_DV)148 DetailsView1.Fields.Add(bf4_DV)149 DetailsView1.Fields.Add(cf_DV)150151'SQLDS_DV.SelectParameters.Add("customerid", TypeCode.String, "GridView1.SelectedValue")152153Dim cpAs ControlParameter =New ControlParameter("custid", TypeCode.String,"GridView1", GridView1.SelectedValue.ToString())154 SQLDS_DV.SelectParameters.Add(cp)155156 SQLDS_GV.DataBind()157 SQLDS_DV.DataBind()158End If159 End Sub160161 Protected Sub GridView1_SelectedIndexChanged(ByVal senderAs Object,ByVal eAs System.EventArgs)Handles GridView1.SelectedIndexChanged162'DetailsView1.DataBind()163 'DetailsView1.DataKey = GridView1.SelectedDataKey164End Sub165166End Class167

ASPX 

1<%@. Page Language="VB" AutoEventWireup="false" CodeFile="Customers.aspx.vb" Inherits="Customers" %>23<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">45<html xmlns="http://www.w3.org/1999/xhtml" >6<head runat="server">7 <title>Untitled Page</title>8</head>9<body>10 <form id="form1" runat="server">11 <div>12 <asp:GridView ID="GridView1" runat="server" CellPadding="4" ForeColor="#333333" GridLines="None" AllowSorting="True" AutoGenerateColumns="False">13 <FooterStyle BackColor="#5D7B9D" Font-Bold="True" ForeColor="White" />14 <RowStyle BackColor="#F7F6F3" ForeColor="#333333" />15 <EditRowStyle BackColor="#999999" />16 <SelectedRowStyle BackColor="#E2DED6" Font-Bold="True" ForeColor="#333333" />17 <PagerStyle BackColor="#284775" ForeColor="White" HorizontalAlign="Center" />18 <HeaderStyle BackColor="#5D7B9D" Font-Bold="True" ForeColor="White" />19 <AlternatingRowStyle BackColor="White" ForeColor="#284775" />20 </asp:GridView>21 <br />22 <asp:DetailsView ID="DetailsView1" runat="server" CellPadding="4" ForeColor="#333333"23 GridLines="None" Height="50px" Width="125px" AutoGenerateDeleteButton="True" AutoGenerateEditButton="True" AutoGenerateInsertButton="True" DefaultMode="Edit">24 <FooterStyle BackColor="#5D7B9D" Font-Bold="True" ForeColor="White" />25 <CommandRowStyle BackColor="#E2DED6" Font-Bold="True" />26 <EditRowStyle BackColor="#999999" />27 <RowStyle BackColor="#F7F6F3" ForeColor="#333333" />28 <PagerStyle BackColor="#284775" ForeColor="White" HorizontalAlign="Center" />29 <FieldHeaderStyle BackColor="#E9ECF1" Font-Bold="True" />30 <HeaderStyle BackColor="#5D7B9D" Font-Bold="True" ForeColor="White" />31 <AlternatingRowStyle BackColor="White" ForeColor="#284775" />32 </asp:DetailsView>3334 </div>35 </form>36</body>37</html>38