Posts Tagged ‘masterpage’

Programmatically Submit Form on Enter Key in C#

January 8th, 2010 No Comments

By default, a majority of the pages and all the functions on a C# Web Application page are all contained within a single form element. Therefore, there may be multiple buttons or other postback controls within a single form. And this may be the reason why there isn’t by default a control which is automatically called when the web users hits the ENTER button.

To Assign a Default On a Standard C# Webpage

This is the default way and involves the name of the control. If you have a ASP Button called btnSearch, the code you would include in the Page_Load function.

this.Form.DefaultButton = “btnSearch”;

To Assign a Default On a Content Page (from a MasterPage) C# Webpage

If your Web application uses MasterPages and you want to assign a control to submit the form on the Enter key, you concept is the same as above, but you’ll need to pass the UniqueId of the control. Assume a control called btnSearch on a ContentPage, add the following to the Page_Load function.

this.Form.DefaultButton = btnSearch.UniqueId;

Some benefits to programmatically assigning the Enter key is your ability to change which Postback function to assign based on how the web user enters the page. Other than that, assigning the default submit control is a major convenience factor for web users.

References:
http://msdn.microsoft.com/en-us/library/system.web.ui.htmlcontrols.htmlform.defaultbutton.aspx

Posted in C# Tags: , , , ,

How to Apply a Master Page to an Existing Webpage

March 10th, 2008 2 Comments

An updated Article Available at: Easily Convert An Existing Web Form to a Web Content Form (with a Master Page)

To convert an exist ing aspx page without a masterpage site template is easy. We are going to walk through a simple example for which can be applied to other situations. Assume you have the following page called Default.aspx (with it’s associated Default.aspx.cs page which we will not need to worry about).

<%@ Page Language="C#" AutoEventWireup="true" CodeBehind="Default.aspx.cs" Inherits="WebApplication1._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>Hello World</title>
  </head>
  <body>
    <form id="form1" runat="server">
      <div>Hello World</div>
    </form>
  </body>
</html>

Now a standard masterpage with two content place holders (one for header information and the other for the main body content) is created for your web application called Site1.Master. Header and footer text has been added that will appear for every content item.

<%@ Master Language="C#" AutoEventWireup="true" CodeBehind="Site1.master.cs" Inherits="WebApplication1.Site1" %>  <!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" >
<html>
  <head runat="server">
    <title>Untitled Page</title>
    <asp:ContentPlaceHolder ID="head" runat="server"> </asp:ContentPlaceHolder>
  </head>
  <body>
    Hello World Header!
    <form id="form1" runat="server">
      <div>
        <asp:ContentPlaceHolder ID="ContentPlaceHolder1" runat="server">
        </asp:ContentPlaceHolder>
      </div>
    </form>
    Hello World Footer!
  </body>
</html>

First, an <%@ Page> tag is should be added to the first line. See resulting code for necessary tag attributes. Any page specific tags from the within the head tags except for <title> are placed inside the <asp:Content ID=”Content1″>. If there are no specific tags, this section will be present, but empty. Likewise, all content in the body (labeled in green in the above example), will be placed into <asp:Content ID=”Content2″>. To give your item template a title, there is a field in <%@ Page> called title which contains the page title (labeled in red in the above example). The final Default.aspx page will be as follows:

<%@ Page Language="C#" MasterPageFile="~/Site1.Master" AutoEventWireup="true" CodeBehind="Default.aspx.cs" Inherits="WebApplication1.WebForm1" Title="Hello World" %>
<asp:Content ID="Content1" ContentPlaceHolderID="head" runat="server">
</asp:Content>
<asp:Content ID="Content2" ContentPlaceHolderID="ContentPlaceHolder1" runat="server">Hello World
</asp:Content>

A regular webpage has now been converted to work with your defined masterpage! You can follow this as a basis to larger more complexed pages.

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