asp.net does not support multiple runat=server forms on the same page, to solve this problem, you can place each form in a separate panel control so that users can simply switch between different panel through radio buttons.
The code is as follows:
2formexample.aspx
<%@ Page language= "C #" codebehind= "2FormExample.cs" autoeventwireup= "false"
Inherits= "_3leaf_app. C2formexample "%>
<meta Name=vs_targetschema content= "HTML 4.0" >
<meta name= "generator" content= "Microsoft Visual Studio 7.0" >
<meta name= "Code_language" content= "C #" ><body>
<form method= "POST" runat= "Server" id=form1>
<p>lookup by
<asp:radiobutton id=radiobutton1 runat= "Server" text= "Name" autopostback= "True" groupname=g1
Checked=true></asp:radiobutton>
<asp:radiobutton id=radiobutton2 runat= "Server" text= "last Name" autopostback= "True"
Groupname=g1></asp:radiobutton></p>
<p></p>
<p>
<asp:panel id=panel1 runat= "Server" visible=true>
The Name:
<asp:textbox id=textbox1 runat= "Server" ></asp:TextBox>
<asp:requiredfieldvalidator id=requiredfieldvalidator1 runat= "Server" errormessage= "*"
Controltovalidate= "TextBox1" ></asp:RequiredFieldValidator>
<asp:button id=button1 runat= "Server" text= "Submit" ></asp:Button>
</asp:Panel>
<asp:panel id=panel2 runat= "Server" visible=false>
Last Name:
<asp:textbox id=textbox2 runat= "Server" ></asp:TextBox>
<asp:requiredfieldvalidator id=requiredfieldvalidator2 runat= "Server" errormessage= "*"
Controltovalidate= "TextBox2" ></asp:RequiredFieldValidator>
<asp:button id=button2 runat= "Server" text= "Submit" ></asp:Button>
</asp:Panel>
<p></p>
<p>
<asp:label id=label1 runat= "Server" ></asp:label>
</p>
</form>
</body>
2FormExample.cs
Namespace _3leaf_app
{
Using System;
Using System.Collections;
Using System.ComponentModel;
Using System.Data;
Using System.Drawing;
Using System.Web;
Using System.Web.SessionState;
Using System.Web.UI;
Using System.Web.UI.WebControls;
Using System.Web.UI.HtmlControls;
<summary>
Summary description for C2formexample.
</summary>
public class C2FormExample:System.Web.UI.Page
{
protected System.Web.UI.WebControls.Button Button2;
protected System.Web.UI.WebControls.RequiredFieldValidator RequiredFieldValidator2;
protected System.Web.UI.WebControls.TextBox TextBox2;
protected System.Web.UI.WebControls.Button Button1;
protected System.Web.UI.WebControls.RequiredFieldValidator RequiredFieldValidator1;
protected System.Web.UI.WebControls.TextBox TextBox1;
protected System.Web.UI.WebControls.Label Label1;
protected System.Web.UI.WebControls.Panel Panel2;
protected System.Web.UI.WebControls.Panel Panel1;
protected System.Web.UI.WebControls.RadioButton RadioButton2;
protected System.Web.UI.WebControls.RadioButton RadioButton1;
Public C2formexample ()
{
Page.Init + = new System.EventHandler (Page_Init);
}
protected void Page_Load (object sender, EventArgs e)
{
if (! IsPostBack)
{
}
}
protected void Page_Init (object sender, EventArgs e)
{
//
Codegen:this the call are required by the asp+ Windows Form Designer.
//
InitializeComponent ();
}
<summary>
Required to Designer support-do not modify
The contents is with the Code Editor.
</summary>
private void InitializeComponent ()
{
Radiobutton1.checkedchanged + = new System.EventHandler (this. radiobutton1_checkedchanged);
Button1.Click + = new System.EventHandler (this. Button1_Click);
Radiobutton2.checkedchanged + = new System.EventHandler (this. radiobutton2_checkedchanged);
Button2.click + = new System.EventHandler (this. button2_click);
This. Load + = new System.EventHandler (this. Page_Load);
}
public void button2_click (object sender, System.EventArgs e)
{
Label1.Text = "You want to search on the last name";
}
public void button1_click (object sender, System.EventArgs e)
{
Label1.Text = "You want to search on the name of";
}
public void Radiobutton2_checkedchanged (object sender, System.EventArgs e)
{
Panel1.visible = false;
Panel2.visible = true;
}
public void Radiobutton1_checkedchanged (object sender, System.EventArgs e)
{
Panel1.visible = true;
Panel2.visible = false;
}
}
}
