[Solved] Why textbox is not appearing on Clicking the CREDIT/DEBIT radiobutton in C# .net? [closed]

You have to use AutoPostBack=”true” and you can use the below code. Its working Aspx <%@ Page Language=”C#” AutoEventWireup=”true” CodeBehind=”WebForm1.aspx.cs” Inherits=”Stack_Overflow.WebForm1″ %> <!DOCTYPE html> <html xmlns=”http://www.w3.org/1999/xhtml”> <head runat=”server”> <title></title> </head> <body> <form id=”form1″ runat=”server”> <div> <asp:Button ID=”Button1″ runat=”server” Text=”Button” OnClick=”Button1_Click” /> <asp:RadioButton ID=”RadioButton1″ AutoPostBack=”true” runat=”server” Text=”Credit” OnCheckedChanged=”RadioButton1_CheckedChanged” GroupName=”a”> </asp:RadioButton> <asp:RadioButton ID=”RadioButton2″ AutoPostBack=”true” runat=”server” Text=”Debit” OnCheckedChanged=”RadioButton2_CheckedChanged” … Read more