Using same form on multiple pages?

I am writing an application, and I have a user form, which will be the same for the users and the administrators on different pag开发者_C百科es.

I want to only create the form once, and then be able to put it on two different aspx files.

I tried it with the "control", but it then gets really complicated trying to access fields on the control from the aspx page to do the calculation, etc.

is there another way to do this? creating a form in one place, be able to add it to any aspx page, and have easy access to it's controls?

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It's not very difficult at all. You can provide an accessor method or make the control inside public.

Example: A page which displays the contents of a TextBox inside a control, when a button is pressed.

Control

<%@ Control Language="C#" AutoEventWireup="true" CodeBehind="WebUserControl1.ascx.cs" Inherits="WebApplication1.WebUserControl1" %>
<asp:TextBox ID="TextBox1" runat="server"></asp:TextBox>

Page

<form runat="server">
    <asp:Label ID="Label1" runat="server" Text="Label"></asp:Label>
    <Test:Control ID="ctlTest" runat="server" />
    <asp:Button ID="Button1" runat="server" Text="Button" OnClick="Button1_Click" />
</form> 

Code (If TextBox1 is public)

protected void Button1_Click(object sender, EventArgs e)
{
    Label1.Text = ctlTest.TextBox1.Text;
}

Or you could have, in the code of the control

public string GetText()
{
    return TextBox1.Text;
}

And in the aspx code page

protected void Button1_Click(object sender, EventArgs e)
{
    Label1.Text = ctlTest.GetText();
}

What is so difficult about that?!

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you have to create MasterPage:

http://msdn.microsoft.com/en-us/library/wtxbf3hh.aspx

so that you can share common controls between pages. Master pages can be nested, too. You can access controls on master page from child page via Master.FindControl("abc")

EDIT: it seems that you want to reuse common piece of functionality, then you might want to use user control, like in this example:

http://msdn.microsoft.com/en-us/library/3457w616.aspx

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you created the control, and do not use findControl() method to access the control that inside you UserControl, that is not feasible or proper solution.

Better to use Properies. Define Properties, so your control can be generalised and you can use that on multiple pages.