如何使用SQL视图填充Web表单

Question

Need to use a View from SQL Server to display detail record for data stored in two tables. Have spent a week trying to use Linq to SQL classes and for whatever reason that just won't work, every time I try I get the same error 3004 (see prior question from last week). Now I am trying to use the view in a connection string similar to what I used for a gridview control. However this is a formview that needs to have questionID passed from the page with GridView. Can this be done?

Very new to programming in asp.net/C#

Pageload event:

protected void Page_Load(object sender, EventArgs e)
    {
        if (!this.IsPostBack)
        {
            string connectionString = WebConfigurationManager.ConnectionStrings["CS1"].ConnectionString;
            string selectSQL = String.Format("Select * from V_Questions where Id ='{0}'");
            SqlConnection con = new SqlConnection(connectionString);
            SqlCommand cmd = new SqlCommand(selectSQL, con);
            SqlDataAdapter adapter = new SqlDataAdapter(cmd);
            DataSet ds = new DataSet();

            adapter.Fill(ds, "Question");

            Submit_Details.DataSource = ds;
            Submit_Details.DataBind();

        }
    }

Detail page:

<%@ Page Title="" Language="C#" MasterPageFile="~/Site.Master" AutoEventWireup="true" CodeBehind="Submit_Detail.aspx.cs" Inherits="cs1.Submit.Submit_Detail" %>
<asp:Content ID="Content1" ContentPlaceHolderID="MainContent" runat="server">
   <asp:FormView ID="Submit_Details" runat="server" Datakeynames="QuestionID" RenderOuterTable="false">
    <ItemTemplate>
        <div>
            QuestionID:
            <asp:Label ID="lbl_Question" runat="server" Text='<%# Eval.("QuestionID") %>'></asp:Label>
        </div>
        <br />
        <script type="text/javascript">
            CKEDITOR.replace('txt_Stem');
        </script>
        <table>
            <tr>
                <td>
                    <asp:Image id="Image1" AlternateText="No Image" runat="server" Height="200px" ImageUrl='<%# "data:image/jpg;base64,"+ Convert.ToBase64String((byte[])Eval("ImageFile")) %>' />
                </td>
                <td>
                    <asp:Image id="Image2" AlternateText="No Image" runat="server" Height="200px" ImageUrl='<%# "data:image/jpg;base64,"+ Convert.ToBase64String((byte[])Eval("ImageFile2")) %>' />
                </td>
            </tr>
            <tr>
                <td>
                    <asp:Image id="Image3" AlternateText="No Image" runat="server" Height="200px" ImageUrl='<%# "data:image/jpg;base64,"+ Convert.ToBase64String((byte[])Eval("ImageFile3")) %>' />
                </td>
                <td>
                    <asp:Image id="Image4" AlternateText="No Image" runat="server" Height="200px" ImageUrl='<%# "data:image/jpg;base64,"+ Convert.ToBase64String((byte[])Eval("ImageFile4")) %>' />
                </td>
            </tr>
        </table>
        <br />
        <br />
        <asp:table id="table1" runat="server" GridLines="Both" BorderStyle="Solid" BorderColor="Black">
            <asp:tablerow>
                <asp:tablecell>
                    <asp:Label runat="server" ID="lbl_author" font-bold="true" Text="Author:"  Width="125"></asp:Label> 
                </asp:tablecell>
                <asp:tablecell>
                    <asp:Label ID="txt_author" runat="server" Text='<%#Item.Author %>' ></asp:Label>
                </asp:tablecell>
            </asp:tablerow>
            <asp:tablerow>
                <asp:tablecell>
                    <asp:Label runat="server" ID="lbl_Stem" font-bold="true" Text="Stem:"  Width="125"></asp:Label> 
                </asp:tablecell>
                <asp:tablecell>
                    <asp:Label ID="txt_Stem" runat="server" Text='<%# Item.Stem %>'></asp:Label>
                </asp:tablecell>
            </asp:tablerow>
            <asp:tablerow>
                <asp:tablecell>
                    <asp:Label runat="server" ID="lbl_RespA" font-bold="true" Text="Response A:"  Width="125"></asp:Label> 
                </asp:tablecell>
                <asp:tablecell>
                    <asp:Label ID="txt_RespA" runat="server" Text='<%# Item.RespA %>' ></asp:Label>
                </asp:tablecell>
            </asp:tablerow>
            <asp:tablerow>
                <asp:tablecell>
                    <asp:Label runat="server" ID="lbl_RespB" Font-Bold="true" Text="Response B:" Width="125"></asp:Label>
                </asp:tablecell>
                <asp:tablecell>
                    <asp:Label runat="server" ID="txt_RespB" Text='<%# Item.RespB %>' ></asp:Label>
                </asp:tablecell>
            </asp:tablerow>
            <asp:tablerow>
                <asp:tablecell>
                    <asp:Label runat="server" ID="Lbl_RespC" Font-Bold="true" Text="Response C:" Width="125"></asp:Label>
                </asp:tablecell>
                <asp:tablecell>
                    <asp:Label runat="server" ID="txt_RespC" Text='<%# Item.RespC %>' ></asp:Label>
                </asp:tablecell>
            </asp:tablerow>
            <asp:tablerow>
                <asp:tablecell>
                    <asp:Label runat="server" ID="lbl_RespD" Font-Bold="true" Text="Response D:" Width="125"></asp:Label>
                </asp:tablecell>
                <asp:tablecell>
                    <asp:Label runat="server" ID="txt_RespD" Text='<%# Item.RespD %>' ></asp:Label>
                </asp:tablecell>
            </asp:tablerow>
            <asp:tablerow>
                <asp:tablecell>
                    <asp:Label runat="server" ID="lbl_RespE" Font-Bold="true" Text="Response E:" Width="125"></asp:Label>
                </asp:tablecell>
                <asp:tablecell>
                    <asp:Label runat="server" ID="txt_RespE" Text='<%# Item.RespE %>' ></asp:Label>
                </asp:tablecell>
            </asp:tablerow>
            <asp:tablerow>
                <asp:tablecell>
                    <asp:Label runat="server" ID="lbl_Answer" Font-Bold="true" Text="Answer:" Width="125"></asp:Label>
                </asp:tablecell>
                <asp:tablecell>
                    <asp:Label runat="server" ID="txt_Answer" Text='<%# Item.Answer %>' ></asp:Label>
                </asp:tablecell>
            </asp:tablerow>
            <asp:tablerow>
                <asp:tablecell>
                    <asp:Label runat="server" ID="lbl_Critique" Font-Bold="true" Text="Critique:" Width="125"></asp:Label>
                </asp:tablecell>
                <asp:tablecell>
                    <asp:Label runat="server" ID="txt_Critique" Text='<%# Item.Critique %>' ></asp:Label>
                </asp:tablecell>
            </asp:tablerow>
            <asp:tablerow>
                <asp:tablecell>
                    <asp:Label runat="server" ID="lbl_KeyObjective" Font-Bold="true" Text="Key Objective:" Width="125"></asp:Label>
                </asp:tablecell>
                <asp:tablecell>
                    <asp:Label runat="server" ID="txt_KeyObjective" Text='<%# Item.KeyObjective %>' ></asp:Label>
                </asp:tablecell>
            </asp:tablerow>
            <asp:tablerow>
                <asp:tablecell>
                    <asp:Label runat="server" ID="lbl_References" Font-Bold="true" Text="References:" Width="125"></asp:Label>
                </asp:tablecell>
                <asp:tablecell>
                    <asp:Label runat="server" ID="txt_References" Text='<%# Item.References %>' ></asp:Label>
                </asp:tablecell>
            </asp:tablerow>
            <asp:tablerow>
                <asp:tablecell>
                    <asp:Label runat="server" ID="lbl_PracticeArea1" Font-Bold="true" Text="Primary Practice Area:" Width="175"></asp:Label>
                </asp:tablecell>
                <asp:tablecell>
                    <asp:Label runat="server" ID="txt_PracticeArea1" Text='<%# Item.PracticeArea1 %>' ></asp:Label>
                </asp:tablecell>
            </asp:tablerow>
            <asp:tablerow>
                <asp:tablecell>
                    <asp:Label runat="server" ID="lbl_PracticeArea2" Font-Bold="true" Text="Secondary Practice Area:" Width="175"></asp:Label>
                </asp:tablecell>
                <asp:tablecell>
                    <asp:Label runat="server" ID="txt_PracticeArea2" Text='<%# Item.PracticeArea2 %>' ></asp:Label>
                </asp:tablecell>
            </asp:tablerow>
            <asp:tablerow>
                <asp:tablecell>
                    <asp:Label runat="server" ID="lblPracticeArea3" Font-Bold="true" Text="Tertiary Practice Area:" Width="165"></asp:Label>
                </asp:tablecell>
                <asp:tablecell>
                    <asp:Label runat="server" ID="txt_PracticeArea3" Text='<%# Item.PracticeArea3 %>' ></asp:Label>
                </asp:tablecell>
            </asp:tablerow>
            <asp:tablerow>
                <asp:tablecell>
                    <asp:Label runat="server" ID="lbl_PracticeArea4" Font-Bold="true" Text="Additional Practice Area:" Width="180"></asp:Label>
                </asp:tablecell>
                <asp:tablecell>
                    <asp:Label runat="server" ID="txt_PracticeArea4" Text='<%# Item.PracticeArea4 %>' ></asp:Label>
                </asp:tablecell>
            </asp:tablerow>

        </asp:table>

    </ItemTemplate>
</asp:FormView>

Form that is passing the query string for the new form. The top link is the one is question (for Submit_Detail).

<asp:GridView ID="GridView1" runat="server" Caption="Submitted Questions" AllowSorting="True" 
CaptionAlign="Left" EmptyDataText="You have not submitted any Questions." PageSize="5"
AutoGenerateColumns="false">
<Columns>
    <asp:TemplateField>
        <ItemTemplate>
            <asp:Label ID="QuestionID" runat="server" Text='<%# Eval("QuestionID") %>' />
        </ItemTemplate>
    </asp:TemplateField>
    <asp:BoundField DataField="KeyObjective" HeaderText="Key Objective" ItemStyle-Width="150" />
    <asp:BoundField DataField="SubmitDate" HeaderText="Submitted Date" ItemStyle-Width="50" />
    <asp:TemplateField>
        <ItemTemplate>
            <asp:LinkButton ID="Details" runat="server" Text="View Details" PostBackUrl='<%# "~/Submit/Submit_Detail.aspx?Id=" + Eval("QuestionID")  %>'></asp:LinkButton>
        </ItemTemplate>
    </asp:TemplateField>
    <asp:TemplateField>
        <ItemTemplate>
            <asp:LinkButton ID="Clone" runat="server" Text="Create Clone" PostBackUrl='<%# "~/Submit/Submit_Clone.aspx?Id=" + Eval("QuestionID")  %>'></asp:LinkButton>
        </ItemTemplate>
    </asp:TemplateField>
</Columns>

</asp:GridView>

Answer 1

What you are wanting to use is a Query string

an example would be

www.yourwebsite.com?Param=100

http://www.dotnetperls.com/querystring

Answer 2

I think you might have several problems. Not looking into the asp section yet, I think the first is you are not quite correctly using the SqlDataAdapter and not finishing the command text construction.

Try something like the following code replacing your first page load method example. Notice comments symbol showing where several lines have changed.

protected void Page_Load(object sender, EventArgs e)
{
    string connectionString = ""; //preserve your connection string
    SqlConnection con = new SqlConnection(connectionString);
    string selectSQL = String.Format("SELECT * FROM V_QUESTIONS WHERE Id = @ID"); //
    SqlCommand cmd = new SqlCommand(selectSQL, con);
    cmd.Parameters.Add("@ID", SqlDbType.Int); //
    SqlDataAdapter adapter = new SqlDataAdapter(cmd);
    DataSet ds = new DataSet();
    adapter.Fill(ds, "Question");

    Submit_Details.DataSource = ds;
    Submit_Details.DataBind();
}

Having added where necessary to your page load method, you will then also need to assign the necessary question id number to the value property of the cmd.Parameters as described in this documentation: https://msdn.microsoft.com/en-us/library/system.data.sqlclient.sqlcommand.parameters(v=vs.110).aspx

Do that before calling the adapter.Fill(ds, "Question") , making sure that your table name is also right.