DotNetOcean: How To set Default Button for ENTER key pressed event, and How To set Focus on a particular Control when Page loads, and How To Shift Focus from One Control To Another when TAB key is pressed

Friday, December 16

How To set Default Button for ENTER key pressed event, and How To set Focus on a particular Control when Page loads, and How To Shift Focus from One Control To Another when TAB key is pressed

<%@ Page Language="C#" AutoEventWireup="true" CodeFile="Default.aspx.cs" Inherits="_Default" %>

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">

<html xmlns="http://www.w3.org/1999/xhtml" >
<head  runat="server">
    <title>Untitled Page</title>
</head>
<body>
    <form id="form1"  runat="server" defaultbutton="Button1" defaultfocus="TextBox1">
    
    <asp:TextBox ID="TextBox1" Text="Focus1" runat="server" TabIndex="1">
    <asp:TextBox ID="TextBox2" Text="Focus2" runat="server" TabIndex="2">
    <asp:TextBox ID="TextBox3" Text="Focus3" runat="server" TabIndex="3">
    <asp:TextBox ID="TextBox4" Text="Focus4" runat="server" TabIndex="4">
    <asp:Button  runat="server" ID="Button1" Text="DefaultClick-IfPressed-EnterKey" OnClick="DefaultButtonClicked"/>
    <asp:Button  runat="server" ID="Button2" Text="ClickExplicitly" OnClick="ExplicitlyClicked"/>
    
    </form>
</body>
</html>

if you are using master page then you have to do like this

my master page source:

 <%@ Master Language="C#" AutoEventWireup="true" CodeFile="MasterPage.master.cs" Inherits="MasterPage" %>

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">

<html xmlns="http://www.w3.org/1999/xhtml">
<head runat="server">
    <title></title>
    <asp:ContentPlaceHolder id="head" runat="server">
    </asp:ContentPlaceHolder>
</head>
<body>
    <form id="form1" runat="server">
    <div>
        <asp:ContentPlaceHolder id="ContentPlaceHolder1" runat="server">
        
        </asp:ContentPlaceHolder>
    </div>
    </form>
</body>
</html>

my content page source:

 <%@ Page Title="" Language="C#" MasterPageFile="~/MasterPage.master" AutoEventWireup="true" CodeFile="Default5.aspx.cs" Inherits="Default5" %>

<asp:Content ID="Content1" ContentPlaceHolderID="head" Runat="Server">
</asp:Content>
<asp:Content ID="Content2" ContentPlaceHolderID="ContentPlaceHolder1" Runat="Server">
    <asp:Button ID="Button1" runat="server" onclick="Button1_Click" Text="Button" />
    <br />
    <asp:TextBox ID="TextBox1" runat="server"></asp:TextBox>
</asp:Content>

my content page code behind:

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

public partial class Default5 : System.Web.UI.Page
{
    protected void Page_Load(object sender, EventArgs e)
    {
        Page.Form.DefaultButton = Button1.UniqueID;
    }
    protected void Button1_Click(object sender, EventArgs e)
    {
        Response.Write("ha ha click me ");
    }
}