Master Page and Themes in ASP. NET Using Visual Studio

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Master Page and Themes in ASP. NET Using Visual Studio


Real-world applications, such as applications for online banking, shopping, and reservation, should accommodate a consistent look and feel, which enriches users, ‘ experience of visiting websites. In ASP. NET 4.5 master pages, themes, and Cascading Style Sheet (CSS) are available, which facilitates developers in giving a consistent look and feel to Web Applications. Master pages help to incorporate visual consistency in web applications. Earlier, we used to add control and layout on each and every page manually, which was a time-consuming process. Now, with the help of master pages, we can define the layout of a web page once and all the other pages of the Web application can inherit that layout in addition to possessing their own content. A template page is created in the master page, based on which all the other pages of a web application are derived. 


This helps to maintain consistency in terms of kook and feel across all the web pages of a web application or website. In ASP. NET 4.5, you can also use CSS and themes to maintain consistency in the design of your web application. CSS and themes are generally used to give efficient appearance to web pages.


The need for a master page, themes, and CSS arises when you want to create web pages that contain some common element. For example, you want to create a website for your company in which all the web pages must have a header showing the logo of the company. You can create the website by using the concept of the master page. 


Describing Master Pages


A master page defines the overall layout of a web application and all the other web pages of the web application are derived from the master page. It contains controls, banners, a navigation menu, and other elements that you want to include in all pages of your web application. This makes your web application more maintainable and also avoids duplication of code. The content pages display their own properties as well as the properties inherited from the master pages. 


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 The following are the key functions of the master page:


  • Defining common properties of websites, such as banners, navigation menus, and other elements that can be accessed by the content page. 
  • Allowing single or multiple content pages to access it. 
  • Displaying the content of each content page in its content placeholder. 


A master page is actually a template that is referred by all the content pages for using its content in the web application. It has the  .master extension while a content page has the. aspx extension. To create a master page for a web application, identify the controls that you want to display on the pages, add these controls to the master page, and then create the Content PlaceHolder placeholder to store the content of the web pages. The content stored in ContentPlaceHolder can be replaced by any content in an associated content page. When you run the web application, the layout of the master page and the content of ContentPlaceHolder are merged to display the resultant web page. 


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The are two types of master pages, simple master pages and nested master pages. In this section, you learn about:


  • Creating a simple master page
  • Creating a nested master page
  • Creating a Web Form using a master page  

Let’s discuss these in detail. 


1. Creating Simple Master Pages


A simple master page simplifies your website design by allowing you to create content pages. It is a page that is combined with the content page to display the appearance and functionality of the combined web page. The concept of simple master and content pages can be better visualized with the help. 


The master and content pages are combined together to generate a simple page called a combined page that inherits the properties from both pages. 


2. Exploring Themes


Themes help you to maintain a consistent look and feel across all Or several pages of your website. Themes or used when you want to keep the style and layout information files separate from other website files. You can apply a theme on all the pages of your web application to maintain a consistent appearance. Themes can include images and skin files; the skin files set the visual properties of ASP. NET Controls. A skin Is a file with the  .skin extension that contains property settings for individual controls, such as button, Texbox, or label. You can either define styles for each control in different skin files or for all the controls in a single skin file. Themes are of two types, which are as follows:


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(i). Page theme: Contains the skin of control, style sheets, graphics file, and other resources inside the subfolders of the App_Theme folder that is present in the Solution Explorer window. It is applied to a single page of a web application. For different themes, separate subfolders are created in the App_Theme folder. 


(ii). Global theme: Refers to a theme that is applied to all the web applications on a web server an includes property settings, style sheets settings, and graphics. The allows you to maintain all the web applications on the same Web server and define the same style for all the Web pages. Global themes are stored in the Themes folder and can be accessed by any website. 


Describing Cascading Style Sheet


Similar to themes, CSS is also used to give a consistent look to the web page in a web application. CSS is used to design a web page efficiently. It also saves time when there is a change in the design of the web page. You can change the design of a web application rapidly using CSS. For example, suppose there are five text boxes on a web page in the yellow background color. Now, if you need to change the color to green then without CSS you have to change the color of each text box explicitly. However, with CSS you just need to change the color at one place in the style defined for the text box in CSS. You have to create a CSS file the define styles for the different controls. After creating the CSS file, you need to include it in a web page to define styles. CSS is very popular because it is understood by all the latest browsers. Therefore, it is the language for the presentation of web pages among developeFinally,




So, friends, I hope you liked this article and you will learn about Master Page and Themes in ASP.  NET Using Visual Studio, you must have understood and learned it well. To create computer and laptop applications and software, you need to know ASP.Net and its coding.  So that you can create software for computers, PCs, and laptops.


Finally, I would like to tell you that if you like this Master Page and Themes in ASP.  If you liked the information about NET Using Visual Studio and you liked this post of ours then do share it on social media so that other people can also learn it.  If you want to ask anything, please comment below.



 Master Page and Themes in ASP. NET Using Visual


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