In
this article I am going to explain how to set the defaultbutton for enter key
press and defaultfocus in textbox
Description:
We
use the DefaultButton and Defaultfocus to set the specific button and textbox
as default from multiple textboxes and buttons.
Implementation:
Default
button and default focus in form
HML Markup:
<html xmlns="http://www.w3.org/1999/xhtml">
<head runat="server">
<title></title>
</head>
<body>
<form id="form1" runat="server" defaultbutton="btnsubmit" defaultfocus="txtfirstname">
<fieldset style="width:25%">
<legend></legend>
<table>
<tr><td>First Name:</td><td><asp:TextBox ID="txtfirstname"
runat="server"></asp:TextBox></td></tr>
<tr><td>Last Name: </td><td><asp:textbox ID="txtlastname"
runat="server"></asp:textbox></td></tr>
<tr><td></td><td></td></tr>
<tr><td></td><td> <asp:Button ID="btnsubmit"
runat="server"
Text="Submit"
onclick="btnsubmit_Click"
/> <asp:Button ID="btnclear"
runat="server" Text="Clear" onclick="btnclear_Click" /></td></tr>
</table>
</fieldset>
</form>
</body>
</html>
We
can set the Default button and default focus from code behind. For this we have
to provide the button id and textbox id.
C#
Code:
protected void Page_Load(object
sender, EventArgs e)
{
this.Page.Form.DefaultButton
= btnsubmit.UniqueID;
this.Page.Form.DefaultFocus
= txtfirstname.ClientID;
}
VB.net
Code:
Protected Sub Page_Load(ByVal
sender As Object,
ByVal e As EventArgs) Handles
Me.Load
Me.Page.Form.DefaultButton
= btnsubmit.UniqueID
Me.Page.Form.DefaultFocus
= txtfirstname.ClientID
End Sub
Default
button and default focus in Content page
HTML Markup:
<%@ Page
Title=""
Language="C#"
MasterPageFile="~/MasterPage.master"
AutoEventWireup="true"
CodeFile="Default.aspx.cs"
Inherits="Default"
%>
<asp:Content ID="Content2" ContentPlaceHolderID="ContentPlaceHolder1" Runat="Server">
<fieldset style="width:25%">
<legend></legend>
<table>
<tr><td>First Name:</td><td><asp:TextBox ID="txtfirstname"
runat="server"></asp:TextBox></td></tr>
<tr><td>Last Name: </td><td><asp:textbox ID="txtlastname"
runat="server"></asp:textbox></td></tr>
<tr><td></td><td></td></tr>
<tr><td></td><td> <asp:Button ID="btnsubmit"
runat="server"
Text="Submit"
onclick="btnsubmit_Click"
/> <asp:Button ID="btnclear"
runat="server" Text="Clear" onclick="btnclear_Click" /></td></tr>
</table>
</fieldset>
</asp:Content>
C#
Code:
protected void Page_Load(object
sender, EventArgs e)
{
this.Page.Form.DefaultButton
= btnsubmit.UniqueID;
this.Page.Form.DefaultFocus
= txtfirstname.ClientID;
}
VB.net
Code:
Protected Sub Page_Load(ByVal
sender As Object,
ByVal e As EventArgs) Handles
Me.Load
Me.Page.Form.DefaultButton
= btnsubmit.UniqueID
Me.Page.Form.DefaultFocus
= txtfirstname.ClientID
End Sub
Default
button and default focus in Panel
We
can also set the Default button and default focus in panel using Default button
and default focus property of panel.
HTML Markup:
<%@ Page
Title=""
Language="C#"
MasterPageFile="~/MasterPage.master"
AutoEventWireup="true"
CodeFile="Default.aspx.cs"
Inherits="Default"
%>
<asp:Content ID="Content2" ContentPlaceHolderID="ContentPlaceHolder1" Runat="Server">
<fieldset style="width:25%">
<legend></legend>
<asp:Panel ID="Panel1" runat="server" Defaultbutton="btnsubmit" Defaultfocus="txtfirstname">
<table>
<tr><td>First Name:</td><td><asp:TextBox ID="txtfirstname"
runat="server"></asp:TextBox></td></tr>
<tr><td>Last Name: </td><td><asp:textbox ID="txtlastname"
runat="server"></asp:textbox></td></tr>
<tr><td></td><td></td></tr>
<tr><td></td><td> <asp:Button ID="btnsubmit"
runat="server"
Text="Submit"
onclick="btnsubmit_Click"
/> <asp:Button ID="btnclear"
runat="server" Text="Clear" onclick="btnclear_Click" /></td></tr>
</table>
</asp:Panel>
</fieldset>
</asp:Content>
C#
Code:
protected void Page_Load(object
sender, EventArgs e)
{
this.Page.Form.DefaultButton
= btnsubmit.UniqueID;
this.Page.Form.DefaultFocus
= txtfirstname.ClientID;
}
VB.net
Code:
Protected Sub Page_Load(ByVal
sender As Object,
ByVal e As EventArgs) Handles
Me.Load
Me.Page.Form.DefaultButton
= btnsubmit.UniqueID
Me.Page.Form.DefaultFocus
= txtfirstname.ClientID
End Sub
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