Accessing value from the controls within a dynamically loaded web user control (asp.net c#)

Question

I have created a web user control (MemberDetails.ascx) which is loaded dynamically on a page (Member.aspx) for my website. The control has some TextBoxes. I want to store the values inputted by a user in these TextBoxes to a database on the click event of a button that is on the Member.aspx page (i.e. not a part of user control).

I'll use a small code for example.

Member.ascx page:

<%@ Control Language="C#" AutoEventWireup="true" CodeFile="MemberDetails.ascx.cs" Inherits="Users_MemberDetails" %>
<div align="center">
<table runat="server" align="center" bordercolor="Black" id="tbl1">
<tr>
<td>First Name:</td><td><asp:TextBox ID="txtFname" runat="server" /></td>
</tr>
   <tr>
   <td>Last Name:</td><td><asp:TextBox ID="txtLname" runat="server" /></td>
   </tr>
</table>
</div>

Member.aspx.cs :

using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;
using System.Web.UI;
using System.Web.UI.WebControls;

public partial class Users_Booking : System.Web.UI.Page
{

 protected void Page_Load(object sender, EventArgs e)
 {
    UserControl Memberuc;
    Memberuc = (UserControl)LoadControl("MemberDetails.ascx");
    Memberuc.ID = "Memberuc1";
    PlaceHolder1.Controls.Add(Memberuc);
 }
 protected void btnSave_Click(object sender, EventArgs e)
 {
   /*Code for saving the input to a database*/
 }
}

I have tried several methods (using properties and FindControl etc.) to do it using suggestions on various forums, but nothing worked for me. Please post the required code. Thanks.

Matthew Abbott · Accepted Answer · 2010-07-31 18:58:40Z

1

As the control will load its own viewstate, you could probably push the logic for the call to your DAL in your control:

public interface IMyUserControl
{
  void Save();
}

public class MemberDetails : UserConntrol, IMyUserControl
{
  // Other stuff here.

  public void Save()
  {
    string forename = txtFname.Text;
    string surname = txtLname.Text;

    // Call your DAL here.
  }
}

And then call it from your page:

protected void btnSave_Click(object sender, EventArgs e)
{
  var control = PlaceHolder1.FindControl("Memberuc1") as IMyUserControl;
  if (control != null)
  {
    control.Save();
  }
}

Thats all untested, but should point you in the right direction.

answered Jul 31, 2010 at 18:58

Matthew Abbott

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