Can't find nested SQL Query

Can someone please tell me how to refrence the Details2SqlDataSource1 in codebehind so I can do:

Details2SqlDataSource1.InsertParameters("VendorCode").DefaultValue = Request.QueryString("VendorCode")

Here's my code:
 
<%@ Page Language="VB" MasterPageFile="~/MasterPage.master" AutoEventWireup="false" CodeFile="test.aspx.vb" Inherits="test" %>

<asp:Content ID="Content1" ContentPlaceHolderID="ContentPlaceHolder1" Runat="Server">




    <table style="width:100%;">
        <tr>
            <td>
                 </td>
        </tr>
        <tr>
            <td>
                <asp:GridView ID="GridView3" runat="server" AutoGenerateColumns="False" 
                    DataKeyNames="VendorServicesCode" DataSourceID="T1SqlDataSource1" 
                    style="font-family: Verdana; font-size: x-small">
                    <Columns>
                        <asp:CommandField ShowDeleteButton="True" ShowSelectButton="True" 
                            SelectText="+" DeleteText="-" >
                            <ItemStyle VerticalAlign="Top" />
                        </asp:CommandField>
                        <asp:TemplateField HeaderText="Service" SortExpression="CategoryCode">
                            <EditItemTemplate>
                                <asp:TextBox ID="TextBox1" runat="server" Text='<%# Bind("CategoryCode") %>'></asp:TextBox>
                            </EditItemTemplate>
                            <ItemTemplate>
                                <asp:Label ID="Label1" runat="server" Text='<%# Bind("CategoryCode") %>' 
                                    Visible="False"></asp:Label>
                                <asp:Repeater ID="Repeater5" runat="server" DataSourceID="CatSqlDataSource1">
                                <ItemTemplate>
                                <%#Eval("CategoryName")%>
                                </ItemTemplate>
                                </asp:Repeater>
                                <asp:SqlDataSource ID="CatSqlDataSource1" runat="server" 
                                    ConnectionString="<%$ ConnectionStrings:SiteDataConnStr %>" 
                                    SelectCommand="SELECT * FROM [CategoryMst] WHERE ([CategoryCode] = @CategoryCode)">
                                    <SelectParameters>
                                        <asp:ControlParameter ControlID="Label1" Name="CategoryCode" 
                                            PropertyName="Text" Type="Int32" />
                                    </SelectParameters>
                                </asp:SqlDataSource>
                                <br />
                                <asp:GridView ID="GridView4" runat="server" AutoGenerateColumns="False" 
                                    DataKeyNames="VendorProductsCode" DataSourceID="T2SqlDataSource1" 
                                    GridLines="None" ShowHeader="False" Width="150px">
                                    <Columns>
                                        <asp:CommandField ShowDeleteButton="True" ShowSelectButton="True" 
                                            SelectText="+" DeleteText="-" />
                                        <asp:TemplateField HeaderText="Product" SortExpression="ProductCode">
                                            <EditItemTemplate>
                                                <asp:TextBox ID="TextBox1" runat="server" Text='<%# Bind("ProductCode") %>'></asp:TextBox>
                                            </EditItemTemplate>
                                            <ItemTemplate>
                                                <asp:Label ID="Label1" runat="server" Text='<%# Bind("ProductCode") %>' 
                                                    Visible="False"></asp:Label>
                                                <asp:Repeater ID="Repeater4" runat="server" 
                                                    DataSourceID="ProdLabelSqlDataSource1">
                                               <ItemTemplate>
                                               <%# Eval("ProductName") %>
                                               </ItemTemplate>
                                                </asp:Repeater>
                                                <asp:SqlDataSource ID="ProdLabelSqlDataSource1" runat="server" 
                                                    ConnectionString="<%$ ConnectionStrings:SiteDataConnStr %>" 
                                                    SelectCommand="SELECT * FROM [ProductMst] WHERE ([ProductCode] = @ProductCode)">
                                                    <SelectParameters>
                                                        <asp:ControlParameter ControlID="Label1" Name="ProductCode" PropertyName="Text" 
                                                            Type="Int32" />
                                                    </SelectParameters>
                                                </asp:SqlDataSource>
                                            </ItemTemplate>
                                            <ItemStyle Width="125px" />
                                        </asp:TemplateField>
                                    </Columns>
                                </asp:GridView>
                                <asp:SqlDataSource ID="T2SqlDataSource1" runat="server" 
                                    ConnectionString="<%$ ConnectionStrings:SiteDataConnStr %>" 
                                    DeleteCommand="DELETE FROM [VendorProducts] WHERE [VendorProductsCode] = @VendorProductsCode" 
                                    InsertCommand="INSERT INTO [VendorProducts] ([VendorLocationCode], [VendorCode], [VendorRegionCode], [CategoryCode], [ProductCode]) VALUES (@VendorLocationCode, @VendorCode, @VendorRegionCode, @CategoryCode, @ProductCode)" 
                                    SelectCommand="SELECT * FROM [VendorProducts] WHERE (([VendorCode] = @VendorCode) AND ([VendorLocationCode] = @VendorLocationCode) AND ([CategoryCode] = @CategoryCode))" 
                                    UpdateCommand="UPDATE [VendorProducts] SET [VendorLocationCode] = @VendorLocationCode, [VendorCode] = @VendorCode, [VendorRegionCode] = @VendorRegionCode, [CategoryCode] = @CategoryCode, [ProductCode] = @ProductCode WHERE [VendorProductsCode] = @VendorProductsCode">
                                    <SelectParameters>
                                        <asp:QueryStringParameter Name="VendorCode" QueryStringField="VendorCode" 
                                            Type="Int32" />
                                        <asp:QueryStringParameter Name="VendorLocationCode" 
                                            QueryStringField="VendorLocationCode" Type="Int32" />
                                        <asp:ControlParameter ControlID="Label1" Name="CategoryCode" 
                                            PropertyName="Text" Type="Int32" />
                                    </SelectParameters>
                                    <DeleteParameters>
                                        <asp:Parameter Name="VendorProductsCode" Type="Int32" />
                                    </DeleteParameters>
                                    <UpdateParameters>
                                        <asp:Parameter Name="VendorLocationCode" Type="Int32" />
                                        <asp:Parameter Name="VendorCode" Type="Int32" />
                                        <asp:Parameter Name="VendorRegionCode" Type="Int32" />
                                        <asp:Parameter Name="CategoryCode" Type="Int32" />
                                        <asp:Parameter Name="ProductCode" Type="Int32" />
                                        <asp:Parameter Name="VendorProductsCode" Type="Int32" />
                                    </UpdateParameters>
                                    <InsertParameters>
                                        <asp:Parameter Name="VendorLocationCode" Type="Int32" />
                                        <asp:Parameter Name="VendorCode" Type="Int32" />
                                        <asp:Parameter Name="VendorRegionCode" Type="Int32" />
                                        <asp:Parameter Name="CategoryCode" Type="Int32" />
                                        <asp:Parameter Name="ProductCode" Type="Int32" />
                                    </InsertParameters>
                                </asp:SqlDataSource>
                                <br />
                                <asp:DetailsView ID="DetailsView1" runat="server" AutoGenerateRows="False" 
                                    DataKeyNames="VendorProductsCode" DataSourceID="Details2SqlDataSource1" 
                                    Height="50px" Width="125px">
                                    <Fields>
                                        <asp:TemplateField HeaderText="Product" SortExpression="ProductCode">
                                            <EditItemTemplate>
                                                <asp:TextBox ID="TextBox1" runat="server" Text='<%# Bind("ProductCode") %>'></asp:TextBox>
                                            </EditItemTemplate>
                                            <InsertItemTemplate>
                                                <asp:DropDownList ID="DropDownList2" runat="server" 
                                                    DataSourceID="ProdDDLSqlDataSource1" DataTextField="ProductName" 
                                                    DataValueField="ProductCode" SelectedValue='<%# Bind("ProductCode") %>'>
                                                </asp:DropDownList>
                                                <asp:SqlDataSource ID="ProdDDLSqlDataSource1" runat="server" 
                                                    ConnectionString="<%$ ConnectionStrings:SiteDataConnStr %>" 
                                                    SelectCommand="SELECT * FROM [ProductMst] WHERE ([CategoryCode] = @CategoryCode) ORDER BY [ProductName]">
                                                    <SelectParameters>
                                                        <asp:ControlParameter ControlID="Label1" Name="CategoryCode" 
                                                            PropertyName="Text" Type="Int32" />
                                                    </SelectParameters>
                                                </asp:SqlDataSource>
                                            </InsertItemTemplate>
                                            <ItemTemplate>
                                                <asp:Label ID="Label1" runat="server" Text='<%# Bind("ProductCode") %>'></asp:Label>
                                            </ItemTemplate>
                                        </asp:TemplateField>
                                        <asp:CommandField ShowInsertButton="True" />
                                    </Fields>
                                </asp:DetailsView>
                                <asp:SqlDataSource ID="Details2SqlDataSource1" runat="server" 
                                    ConnectionString="<%$ ConnectionStrings:SiteDataConnStr %>" 
                                    DeleteCommand="DELETE FROM [VendorProducts] WHERE [VendorProductsCode] = @VendorProductsCode" 
                                    InsertCommand="INSERT INTO [VendorProducts] ([VendorLocationCode], [VendorCode], [VendorRegionCode], [CategoryCode], [ProductCode]) VALUES (@VendorLocationCode, @VendorCode, @VendorRegionCode, @CategoryCode, @ProductCode)" 
                                    SelectCommand="SELECT * FROM [VendorProducts] WHERE ([VendorProductsCode] = @VendorProductsCode)" 
                                    UpdateCommand="UPDATE [VendorProducts] SET [VendorLocationCode] = @VendorLocationCode, [VendorCode] = @VendorCode, [VendorRegionCode] = @VendorRegionCode, [CategoryCode] = @CategoryCode, [ProductCode] = @ProductCode WHERE [VendorProductsCode] = @VendorProductsCode">
                                    <SelectParameters>
                                        <asp:ControlParameter ControlID="GridView4" Name="VendorProductsCode" 
                                            PropertyName="SelectedValue" Type="Int32" />
                                    </SelectParameters>
                                    <DeleteParameters>
                                        <asp:Parameter Name="VendorProductsCode" Type="Int32" />
                                    </DeleteParameters>
                                    <UpdateParameters>
                                        <asp:Parameter Name="VendorLocationCode" Type="Int32" />
                                        <asp:Parameter Name="VendorCode" Type="Int32" />
                                        <asp:Parameter Name="VendorRegionCode" Type="Int32" />
                                        <asp:Parameter Name="CategoryCode" Type="Int32" />
                                        <asp:Parameter Name="ProductCode" Type="Int32" />
                                        <asp:Parameter Name="VendorProductsCode" Type="Int32" />
                                    </UpdateParameters>
                                    <InsertParameters>
                                        <asp:Parameter Name="VendorLocationCode" Type="Int32" />
                                        <asp:Parameter Name="VendorCode" Type="Int32" />
                                        <asp:Parameter Name="VendorRegionCode" Type="Int32" />
                                        <asp:Parameter Name="CategoryCode" Type="Int32" />
                                        <asp:Parameter Name="ProductCode" Type="Int32" />
                                    </InsertParameters>
                                </asp:SqlDataSource>
                            </ItemTemplate>
                        </asp:TemplateField>
                    </Columns>
                </asp:GridView>
                <asp:SqlDataSource ID="T1SqlDataSource1" runat="server" 
                    ConnectionString="<%$ ConnectionStrings:SiteDataConnStr %>" 
                    DeleteCommand="DELETE FROM [VendorServices] WHERE [VendorServicesCode] = @VendorServicesCode" 
                    InsertCommand="INSERT INTO [VendorServices] ([VendorLocationCode], [VendorRegionCode], [VendorCode], [CategoryCode]) VALUES (@VendorLocationCode, @VendorRegionCode, @VendorCode, @CategoryCode)" 
                    SelectCommand="SELECT * FROM [VendorServices] WHERE (([VendorCode] = @VendorCode) AND ([VendorLocationCode] = @VendorLocationCode))" 
                    UpdateCommand="UPDATE [VendorServices] SET [VendorLocationCode] = @VendorLocationCode, [VendorRegionCode] = @VendorRegionCode, [VendorCode] = @VendorCode, [CategoryCode] = @CategoryCode WHERE [VendorServicesCode] = @VendorServicesCode">
                    <SelectParameters>
                        <asp:QueryStringParameter Name="VendorCode" QueryStringField="VendorCode" 
                            Type="Int32" />
                        <asp:QueryStringParameter Name="VendorLocationCode" 
                            QueryStringField="VendorLocationCode" Type="Int32" />
                    </SelectParameters>
                    <DeleteParameters>
                        <asp:Parameter Name="VendorServicesCode" Type="Int32" />
                    </DeleteParameters>
                    <UpdateParameters>
                        <asp:Parameter Name="VendorLocationCode" Type="Int32" />
                        <asp:Parameter Name="VendorRegionCode" Type="Int32" />
                        <asp:Parameter Name="VendorCode" Type="Int32" />
                        <asp:Parameter Name="CategoryCode" Type="Int32" />
                        <asp:Parameter Name="VendorServicesCode" Type="Int32" />
                    </UpdateParameters>
                    <InsertParameters>
                        <asp:Parameter Name="VendorLocationCode" Type="Int32" />
                        <asp:Parameter Name="VendorRegionCode" Type="Int32" />
                        <asp:Parameter Name="VendorCode" Type="Int32" />
                        <asp:Parameter Name="CategoryCode" Type="Int32" />
                    </InsertParameters>
                </asp:SqlDataSource>
                <asp:DetailsView ID="DetailsView2" runat="server" AutoGenerateRows="False" 
                    DataKeyNames="VendorServicesCode" DataSourceID="DetailsSqlDataSource1" 
                    Height="50px" Width="125px" 
                    style="font-family: Verdana; font-size: x-small">
                    <Fields>
                        <asp:TemplateField HeaderText="Category" SortExpression="CategoryCode">
                            <EditItemTemplate>
                                <asp:DropDownList ID="DropDownList1" runat="server" 
                                    DataSourceID="ServicesDDLSqlDataSource1" DataTextField="CategoryName" 
                                    DataValueField="CategoryCode" SelectedValue='<%# Bind("CategoryCode") %>'>
                                </asp:DropDownList>
                                <asp:SqlDataSource ID="ServicesDDLSqlDataSource1" runat="server" 
                                    ConnectionString="<%$ ConnectionStrings:SiteDataConnStr %>" 
                                    SelectCommand="SELECT [CategoryName], [CategoryCode] FROM [CategoryMst] ORDER BY [CategoryName]">
                                </asp:SqlDataSource>
                            </EditItemTemplate>
                            <InsertItemTemplate>
                                <asp:DropDownList ID="DropDownList1" runat="server" 
                                    DataSourceID="ServicesDDLSqlDataSource1" DataTextField="CategoryName" 
                                    DataValueField="CategoryCode" SelectedValue='<%# Bind("CategoryCode") %>'>
                                </asp:DropDownList>
                                <asp:SqlDataSource ID="ServicesDDLSqlDataSource1" runat="server" 
                                    ConnectionString="<%$ ConnectionStrings:SiteDataConnStr %>" 
                                    SelectCommand="SELECT [CategoryName], [CategoryCode] FROM [CategoryMst] ORDER BY [CategoryName]">
                                </asp:SqlDataSource>
                            </InsertItemTemplate>
                            <ItemTemplate>
                                <asp:Label ID="Label1" runat="server" Text='<%# Bind("CategoryCode") %>'></asp:Label>
                            </ItemTemplate>
                        </asp:TemplateField>
                        <asp:CommandField ShowInsertButton="True" />
                    </Fields>
                </asp:DetailsView>
                <asp:SqlDataSource ID="DetailsSqlDataSource1" runat="server" 
                    ConnectionString="<%$ ConnectionStrings:SiteDataConnStr %>" 
                    DeleteCommand="DELETE FROM [VendorServices] WHERE [VendorServicesCode] = @VendorServicesCode" 
                    InsertCommand="INSERT INTO [VendorServices] ([VendorLocationCode], [VendorRegionCode], [VendorCode], [CategoryCode]) VALUES (@VendorLocationCode, @VendorRegionCode, @VendorCode, @CategoryCode)" 
                    SelectCommand="SELECT * FROM [VendorServices] WHERE (([VendorCode] = @VendorCode) AND ([VendorLocationCode] = @VendorLocationCode) AND ([VendorServicesCode] = @VendorServicesCode))" 
                    UpdateCommand="UPDATE [VendorServices] SET [VendorLocationCode] = @VendorLocationCode, [VendorRegionCode] = @VendorRegionCode, [VendorCode] = @VendorCode, [CategoryCode] = @CategoryCode WHERE [VendorServicesCode] = @VendorServicesCode">
                    <SelectParameters>
                        <asp:QueryStringParameter Name="VendorCode" QueryStringField="VendorCode" 
                            Type="Int32" />
                        <asp:QueryStringParameter Name="VendorLocationCode" 
                            QueryStringField="VendorLocationCode" Type="Int32" />
                        <asp:ControlParameter ControlID="GridView3" Name="VendorServicesCode" 
                            PropertyName="SelectedValue" Type="Int32" />
                    </SelectParameters>
                    <DeleteParameters>
                        <asp:Parameter Name="VendorServicesCode" Type="Int32" />
                    </DeleteParameters>
                    <UpdateParameters>
                        <asp:Parameter Name="VendorLocationCode" Type="Int32" />
                        <asp:Parameter Name="VendorRegionCode" Type="Int32" />
                        <asp:Parameter Name="VendorCode" Type="Int32" />
                        <asp:Parameter Name="CategoryCode" Type="Int32" />
                        <asp:Parameter Name="VendorServicesCode" Type="Int32" />
                    </UpdateParameters>
                    <InsertParameters>
                        <asp:Parameter Name="VendorLocationCode" Type="Int32" />
                        <asp:Parameter Name="VendorRegionCode" Type="Int32" />
                        <asp:Parameter Name="VendorCode" Type="Int32" />
                        <asp:Parameter Name="CategoryCode" Type="Int32" />
                    </InsertParameters>
                </asp:SqlDataSource>
                <br />
            </td>
        </tr>
    </table>





</asp:Content>

jfierst

1/29/2008 6:51:25 PM

asp.net.presentation-controls

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What error are you getting?

Regards

Partha Mandayam
Sr Prog Analyst
Kaiser Permanente

mcp111

1/29/2008 7:28:31 PM

Object reference not set to an instance of an object.

Line 31:
Line 32: Dim Details2SqlDataSource1 As SqlDataSource
Line 33: Details2SqlDataSource1 = GridView3.SelectedRow.FindControl("Details2SqlDataSource1")

[NullReferenceException: Object reference not set to an instance of an object.]
   test.Page_Load(Object sender, EventArgs e) in C:\websites\telegent\test.aspx.vb:33
   System.Web.UI.Control.OnLoad(EventArgs e) +99
   System.Web.UI.Control.LoadRecursive() +47
   System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint) +1436

jfierst

1/29/2008 7:42:17 PM

Can you please explain what exactly you want to do in line 33?

Regards

Partha Mandayam
Sr Prog Analyst
Kaiser Permanente

mcp111

1/29/2008 8:50:08 PM

I am simply trying to access the sqlquery so I can then do this:
Details2SqlDataSource1.InsertParameters("VendorCode").DefaultValue = Request.QueryString("VendorCode") 
Details2SqlDataSource1.InsertParameters("VendorLocationCode").DefaultValue = Request.QueryString("VendorLocationCode")

Details2SqlDataSource1.InsertParameters("CategoryCode").DefaultValue = Label1.Text

jfierst

1/29/2008 8:53:55 PM

You can directly do this in Page_Load. Why are you doing Findcontrol?

Regards

Partha Mandayam
Sr Prog Analyst
Kaiser Permanente

mcp111

1/29/2008 9:07:02 PM

The query is located within Gridview3. I can't access it directly.

jfierst

1/29/2008 9:11:04 PM

THe query is associated with the sqldatasource and the gridview is bound to the sqldatasource. So you can access the sqldatasource directly.

Regards

Partha Mandayam
Sr Prog Analyst
Kaiser Permanente

mcp111

1/29/2008 9:32:42 PM

The datasource I am trying to get to is Details2SqlDataSource1 which is bound to a DetailsView, and both the detailsview and the Details2SqlDataSource1 are inside the Gridview3 gridview.

When I try to set it in pageload with simply:

Details2SqlDataSource1.InsertParameters("VendorCode").DefaultValue = Request.QueryString("VendorCode")

, it says Details2SqlDataSource1 is not declared. That makes me think that I need to do a findcontrol on it.

jfierst

1/30/2008 2:03:21 PM

try this
Dim ds As sqldatasource = TryCast(GridView3.SelectedRow.FindControl("Details2SqlDataSource1"), sqldatasource)
ds.InsertParameters("VendorCode").DefaultValue = Request.QueryString("VendorCode")
Regards

Partha Mandayam
Sr Prog Analyst
Kaiser Permanente

mcp111

1/30/2008 3:55:37 PM

Nope, didn't work.

Object reference not set to an instance of an object.

Description: An unhandled exception occurred during the execution of the current web request. Please review the stack trace for more information about the error and where it originated in the code.

Exception Details: System.NullReferenceException: Object reference not set to an instance of an object.

jfierst

1/30/2008 4:02:13 PM

In what event are you writing this code?

Regards

Partha Mandayam
Sr Prog Analyst
Kaiser Permanente

mcp111

1/30/2008 6:26:50 PM

I have tried Page Load, and GridView3_RowDataBound, and GridView3_Load

jfierst

1/30/2008 6:34:55 PM

try this in Page_Load
try this
Dim ds As sqldatasource = TryCast(GridView3.FindControl("Details2SqlDataSource1"), sqldatasource)
ds.InsertParameters("VendorCode").DefaultValue = Request.QueryString("VendorCode")

Selectedrow probably doesn't make sense while loading.
Regards

Partha Mandayam
Sr Prog Analyst
Kaiser Permanente

mcp111

1/30/2008 8:45:57 PM

Object reference not set to an instance of an object

jfierst

1/30/2008 8:54:50 PM

Hi jfierst ,
Try to invoke findcontrol method in GridView3_RowDataBound and you need to do it in the rows which RowType equals DataRow.
See my codes below.
        protected void GridView3_RowDataBound(object sender, GridViewRowEventArgs e)
        {
            if (e.Row.RowType == DataControlRowType.DataRow)
            {
                //do findcontrol 
            }
        }
 

Samu Zhang
Microsoft Online Community Support

Please remember to click “Mark as Answer” on the post that helps you, and to click “Unmark as Answer” if a marked post does not actually answer your question.

Samu

1/31/2008 5:28:34 AM

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Like the title I need the function that AutoCompleteExtender has. so I search AutoCompleteExtender control in the RC control toolkit list,but I can't find it. and I google it, the control seems to be in the atlas. now,can I use the AutoCompleteExtender control,and does it drop by the ajax.net.if I can,how can I get it,I hava install the RC.if I can't any control instead it? Of course, you need to install another Apps called AJAX Features CTP Dec, then you will get it back.The more you cook the ASP.NET, the much better you taste it....

Can't find nested controls on UserControls with New version of AjaxToolKit.dll
I have noticed much improvement in Accordion, and overall speed in the Toolkit with the June release but It seems something broke the ability to get a reference to a nested control with the latest June Toolkit release (in my case specifically within a TabContainer). With the previous release I had the following scenario without any problems: Partial extract of code inside userControl that is contained within Accordion control: <asp:ScriptManagerProxy id="ScriptManagerProxy1" runat="server"> </asp:ScriptManagerProxy> <div> <aj...

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Resources last updated: 11/26/2015 8:12:42 PM