Values from textbox not reaching codebehind.

See more:

C#

ASP.NET

I have a form in my website, which, on being filled is supposed to be stored in a database. I'm using a stored procedure for this. When i called the procedure using the code-behind, null was getting stored in the database. When I hard-coded the values of the parameters, I found that the text from the text-box is not reaching the code-behind.

aspx code:

 <table>
                 <tr>
                     <td class="auto-style2">
             <asp:Label runat="server" >Name <span class="req">*</span></asp:Label>
                         </td>
                     <td class="auto-style1">
             <asp:TextBox ID="tb_name" runat="server" CssClass="form_tb"></asp:TextBox>
                
                            

             <asp:RequiredFieldValidator runat="server" Text="Name is mandatory" ValidationGroup="1" Font-Italic="true" Font-Size="10" ForeColor="Red" ControlToValidate="tb_name">
             </asp:RequiredFieldValidator>
            </td>
             </tr>

            <tr>
                <td class="auto-style2">
             
             <asp:Label runat="server" >E-mail <span class="req">*</span></asp:Label>
                    </td>
                <td class="auto-style1">
             <asp:TextBox runat="server" ID="tb_mail" CssClass="form_tb"></asp:TextBox>

                       

                    <asp:RequiredFieldValidator ID="RequiredFieldValidator1" runat="server" ControlToValidate="tb_mail" Font-Italic="true" Text="Specify valid email address"
                 ValidationGroup="1" Font-Size="10" ForeColor="Red"></asp:RequiredFieldValidator>
                    <br />
                    <asp:RegularExpressionValidator ID="regexEmailValid" runat="server" ForeColor="Red" ValidationGroup="1" Font-Italic="true" Text="*Invalid Email Address "
                 ValidationExpression="\w+([-+.]\w+)*@\w+([-.]\w+)*\.\w+([-.]\w+)*" ControlToValidate="tb_mail" Font-Size="10">
                 
             </asp:RegularExpressionValidator>

             
                </td>
             </tr>

            <tr>
                <td class="auto-style2">
             <asp:Label runat="server">Contact Number <span class="req">*</span></asp:Label>
                </td>
                <td class="auto-style1">
             <asp:TextBox runat="server" ID="tb_num" CssClass="form_tb" MaxLength="10"></asp:TextBox>

                       
            <asp:RequiredFieldValidator ID="rfv_phone" runat="server" ControlToValidate="tb_num" Font-Italic="true" Text="Specify valid email address"
                 ValidationGroup="1" Font-Size="10" ForeColor="Red"></asp:RequiredFieldValidator>
                    <br />
             <asp:RegularExpressionValidator ID="rev_num" runat="server" ValidationGroup="1" ControlToValidate="tb_num" ForeColor="Red" Font-Italic="true" Font-Size="10"
                  ValidationExpression="[0-9]{10}">*Invalid Number</asp:RegularExpressionValidator>
             </td>
                </tr>
</table>

My code-behind for storing the values:

name.Value = tb_name.Text;
        email.Value = "hgd@hjf.jf";
        phone.Value = "654789076";

The value of name isn't being passed.

connect = new SqlConnection(ConfigurationManager.ConnectionStrings["ConnectionString"].ConnectionString);
            cmnd = new SqlCommand("submit_form", connect);
            cmnd.CommandType = CommandType.StoredProcedure;

            

            cmnd.Parameters.Add(name);
            cmnd.Parameters.Add(email);
            cmnd.Parameters.Add(phone);
            try
            {
                connect.Open();
                cmnd.ExecuteNonQuery();
            }
            finally
            {
                if (connect != null)
                    connect.Close();
            }

Could it be because i have an update panel around the submit button?

<div id="btn_holder">
                <asp:UpdatePanel ID="UpdatePanel1" runat="server" UpdateMode="Conditional">
                <ContentTemplate>
                 <asp:Button ID="submit_btn" runat="server" CssClass="submit" Text="Volunteer" ValidationGroup="1" CausesValidation="true" OnClick="btn_submitClick" />

                 <asp:Button ID="reset_btn" runat="server" CssClass="submit" Text="Reset" OnClick="resetClick"  />

                 <br /><br />
                 <asp:Label runat="server" ID="lblRes" Font-Size="12" Font-Italic="true"></asp:Label>
                 </ContentTemplate>
                 </asp:UpdatePanel>
             </div>

Kindly help me out.