Forms Data Controls :: Reload User Control When Event Occurs On Web

I have a user control with a datalist loaded on my web page and also a web form to add another entry to the datalist when the button to submit the new entry I need to reload the user contol to show the new entry

<h1>Admin</h1>
<h2>News</h2>
<asp:label ID="lblSearch" Text="Select News: " runat="server" />
<asp:DropDownList ID="NewsList" runat="server" CssClass="DropDownMenu" />
<asp:Button ID="btnSearch" Text="Search" runat="server" OnClick="btnSearch_Click" />
<br />
<br />
<asp:Label ID="dbErrorMessage" ForeColor="Red" runat="server" />
<asp:Label ID="Successfulmessage" runat="server" />
<br />
<asp:Label ID="lblTitle" runat="server" Text="Title" CssClass="TextBoxLabel" />
<br />
<asp:TextBox ID="txtTitle" runat="server" CssClass="TextBox" />
<br />
<br />
<asp:Label ID="lblNews" runat="server" Text="News" CssClass="TextBoxLabel" />
<br />
<asp:TextBox ID="txtNews" runat="server" TextMode="MultiLine" Width="500px" Rows="10" CssClass="TextBox" />
<br />
<asp:Button ID="btnSubmit" Text="Submit" runat="server" Onclick="btnSubmit_Click" />
<asp:Button ID="btnUpdate" Text="Update" runat="server" OnClick="btnUpdate_Click" />
<asp:Button ID="btnDelete" Text="Delete" runat="server" OnClick="btnDelete_Click" />
<br />
<br />
<uc1:NewsList ID="NewsList1" runat="server" />
<br />
protected void btnSubmit_Click(object sender, EventArgs e)
{
// Define data objects
SqlConnection conn;
SqlCommand comm;
// Read the connection string from Web.Config
string connectionString = ConfigurationManager.ConnectionStrings["platiummindproductions"].ConnectionString;
// Initialise connection
conn = new SqlConnection(connectionString);
// Create Command
comm = new SqlCommand("INSERT INTO News (Title, Date, News) VALUES (@Title, @Date, @News)", conn);
// Add command parameters
comm.Parameters.Add("@Title", System.Data.SqlDbType.NVarChar, 50);
comm.Parameters["@Title"].Value = txtTitle.Text;
comm.Parameters.Add("@Date", System.Data.SqlDbType.DateTime);
comm.Parameters["@Date"].Value = DateTime.Now;
comm.Parameters.Add("@News", System.Data.SqlDbType.NVarChar, 4000);
comm.Parameters["@News"].Value = txtNews.Text;
// Enclose database in try-catch-finally
try
{
// Clear message labels
Successfulmessage.Text = "";
dbErrorMessage.Text = "";
// Open the connection
conn.Open();
// Execute the command
comm.ExecuteNonQuery();
DataBind();
// Display sussessful message
Successfulmessage.Text = "News Updated successfully!";
}
catch
{
// Display error message
dbErrorMessage.Text = "Error updating the News details! Please try again later!";
}
finally
{
// Close the connection
conn.Close();
}
}