how transfer connection string in ASCx to SharePoint web.cfg

In my sharepoint site, I have a child control that points to a ascx file.

I have a user control that has embeeded connection string code that will be displayed as a web part in my sharepoint site. The connection string is embeeded in the ASCX file.

Is there a way i can get the ascx file to run on my sharepoint site without the connectstring being in the ascx file.
I would keep connection strings in Web.cfg file. Is there a way to do this?


<%@ Control Language="C#" AutoEventWireup="true" CodeFile="dg2.ascx.cs" Inherits="dg2" %>
<asp:SqlDataSource ID="SqlDataSource1" runat="server" ConnectionString="Data Source=training;Initial Catalog=employeecars;User ID=dbuser;Password=Training45;"
    SelectCommand="SELECT [employee_id], [employee_name] FROM [Employees]"></asp:SqlDataSource>
<asp:DropDownList ID="DropDownList1" runat="server" AutoPostBack="True" DataSourceID="SqlDataSource1"
    DataTextField="employee_name" DataValueField="employee_id">
</asp:DropDownList>
<asp:SqlDataSource ID="SqlDataSource2" runat="server" ConnectionString="Data Source=training;Initial Catalog=employeecars;User ID=dbuser;Password=Training45;"
    SelectCommand="SELECT [car_license], [car_model] FROM [Cars] WHERE ([employee_id] = @employee_id)">
    <SelectParameters>
        <asp:ControlParameter ControlID="DropDownList1" DefaultValue="1" Name="employee_id"
            PropertyName="SelectedValue" Type="Int32" />
    </SelectParameters>
</asp:SqlDataSource>
<asp:GridView ID="GridView1" runat="server" AutoGenerateColumns="False" CellPadding="4"
    DataSourceID="SqlDataSource2" ForeColor="#333333" GridLines="None">
    <RowStyle BackColor="#EFF3FB" />
    <Columns>
        <asp:BoundField DataField="car_license" HeaderText="car_license" SortExpression="car_license" />
        <asp:BoundField DataField="car_model" HeaderText="car_model" SortExpression="car_model" />
    </Columns>
    <FooterStyle BackColor="#507CD1" Font-Bold="True" ForeColor="White" />
    <PagerStyle BackColor="#2461BF" ForeColor="White" HorizontalAlign="Center" />
    <SelectedRowStyle BackColor="#D1DDF1" Font-Bold="True" ForeColor="#333333" />
    <HeaderStyle BackColor="#507CD1" Font-Bold="True" ForeColor="White" />
    <EditRowStyle BackColor="#2461BF" />
    <AlternatingRowStyle BackColor="White" />
</asp:GridView>

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dtotten800Asked:
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mo1oneCommented:
You can put the connection string in ConnectionStrings section in web.config of a SharePoint site.
In the code behind i.e. cs or .vb file you could read the connection string from web.config using ASP.Net configuration methods,
and then from the code use the Connection String for a Data Source. Apply this data source to the Grid
i.e. GridView1.DataSource = <Data Source created in Code>
Bind the data source i.e. execute the bind method (or dataBind) of the Grid
 
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dtotten800Author Commented:
more details example needed
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