Populate (Bind) ASP.Net DataList control inside Repeater using C# and VB.Net

I am trying to create election software. I have table above which has Ballot records of Candidates’ names contesting for different elections, Election Name, their short bio, the positions contesting for (Ballot Question), as well as the Admin Names who created the Ballot.

I have searched all over for solutions to this but seem not to find any solution. IT IS VERY DIFFICULT FOR ME as I don’t know much about coding (I am still learning).

Please I’m asking for help. How can I create such that when an Admin adds new Ballot Question, it will display on web page; and when a candidate is added to that Ballot question, it will also display accordingly and under that Ballot Question.

For example: If Admin “Richard” creates an election and adds a Ballot Question (“President”); Richard will then go on to add candidate, with the candidate’s Name, short bio and maybe image. Then the candidates’ details will fall under that Ballot Question that the candidate is registered for.

Election Name: 2021 Youth Elections

Ballot Question: President

Candidate Name: Francis Duru

Short bio: Very Brilliant

Election Name: 2021 Youth Elections

Ballot Question: Secretary

Candidate Name: Queen Donald

Short bio: Awesome person

This is my HTML and code. 

<div>
    <asp:Label ID="Label1" runat="server" Text="Richard"></asp:Label>
    <asp:Label ID="Label2" runat="server" Text="2021 Youth Elections"></asp:Label>
    <asp:Repeater ID="Repeater1" runat="server" OnItemDataBound="Repeater1_ItemDataBound">
        <ItemTemplate>
            <div class="container-fluid shadow p-3 mb5 bg-white rounded">
                <table>
                    <tr>
                        <asp:Label ID="Lblone" runat="server" Text='<%# DataBinder.Eval(Container.DataItem, "BallotQuestion") %>'></asp:Label>
                        <br />
                        <asp:DataList ID="DataList1" runat="server">
                            <ItemTemplate>
                                     <asp:RadioButton ID="RadioButton1" runat="server" />
                                    <asp:Label ID="lbl" runat="server" Text='<%# DataBinder.Eval(Container.DataItem, "CandidateName") %>'></asp:Label>
                                    <asp:Label ID="Labl1" runat="server" Text='<%# DataBinder.Eval(Container.DataItem, "Shortbio") %>'></asp:Label>
                            </ItemTemplate>
                        </asp:DataList>
                        <asp:Button ID="Button1" runat="server" Text="Add Option" />
                    </tr>
                </table>
            </div>
        </ItemTemplate>
    </asp:Repeater>
</div>

    protected void Page_Load(object sender, EventArgs e)
    {
        if (!IsPostBack)
        {
            Repeater1.DataSource = GetData("SELECT * FROM [Questions] WHERE AdminName = '" + Label1.Text + "' AND ElectionName = '" + Label2.Text + "'");
            Repeater1.DataBind();
        }
    }
    private static DataTable GetData(string query)
    {
        using (SqlConnection con = new SqlConnection("Data Source = (LocalDB)\\MSSQLLocalDB;AttachDbFilename=|DataDirectory|\\BallotDB.mdf;Integrated Security = True;"))
        {
            using (SqlCommand cmd = new SqlCommand())
            {
                cmd.CommandText = query;
                using (SqlDataAdapter da = new SqlDataAdapter())
                {
                    cmd.Connection = con;
                    da.SelectCommand = cmd;
                    using (DataSet ds = new DataSet())
                    {
                        DataTable dt = new DataTable();
                        da.Fill(dt);
                        return dt;
                    }
                }
            }
        }
    }
    protected void Repeater1_ItemDataBound(object sender, RepeaterItemEventArgs e)
    {
        if (e.Item.ItemType == ListItemType.Item || e.Item.ItemType == ListItemType.AlternatingItem)
        {
            DataList DataList1 = (DataList)e.Item.FindControl("DataList1");
            DataList1.DataSource = GetData("SELECT * FROM [Questions] WHERE AdminName = '" + Label1.Text + "' AND ElectionName = '" + Label2.Text + "'");
            DataList1.DataBind();
        }
    }