Asp Net Web Server Controls is your guide to making your site work the way you want it to. With this book, you’ll learn how to configure and manage Asp Net Web Server Controls to make your site faster, more efficient, and more responsive. You’ll also get tips on how to add features and optimize your website for search engines. Finally, you’ll learn how to make sure that all aspects of your website—including your content and the looks and feel of your pages—complies with the latest web standards.
Asp Net Web Server Controls
Asp Net Web Server is a web server that runs on the Microsoft Windows platform. It enables you to run web applications and is used to power many popular websites today.
Asp Net Web Server controls are used to manage the settings of a web server and their associated components, such as the CPU, memory, and HDD space. These controls can help you regulate how your site will function, including:
1. Processor – How fast your site can run on the server
2. Memory – How much memory your site can use
3. Disk Space – How much disk space your site can use
How Does Asp Net Web Server Work
The aspnet web server core uses three main components: the ASP.NET web application, the global system parameters, and the response files. The ASP.NET web application is a program that you write that can be used to create websites. The global system parameters contain information about your site, such as its name and content type. The response files are the files that a website downloads when it’s requested.
ASP.NET Web Forms Server Controls
ASP.NET provides web forms controls that are used to create HTML components. These controls are categories as server and client based. The following table contains the server controls for the web forms.
| Control Name | Applicable Events | Description |
|---|---|---|
| Label | None | It is used to display text on the HTML page. |
| TextBox | TextChanged | It is used to create a text input in the form. |
| Button | Click, Command | It is used to create a button. |
| LinkButton | Click, Command | It is used to create a button that looks similar to the hyperlink. |
| ImageButton | Click | It is used to create an imagesButton. Here, an image works as a Button. |
| Hyperlink | None | It is used to create a hyperlink control that responds to a click event. |
| DropDownList | SelectedIndexChanged | It is used to create a dropdown list control. |
| ListBox | SelectedIndexCnhaged | It is used to create a ListBox control like the HTML control. |
| DataGrid | CancelCommand, EditCommand, DeleteCommand, ItemCommand, SelectedIndexChanged, PageIndexChanged, SortCommand, UpdateCommand, ItemCreated, ItemDataBound | It used to create a frid that is used to show data. We can also perform paging, sorting, and formatting very easily with this control. |
| DataList | CancelCommand, EditCommand, DeleteCommand, ItemCommand, SelectedIndexChanged, UpdateCommand, ItemCreated, ItemDataBound | It is used to create datalist that is non-tabular and used to show data. |
| CheckBox | CheckChanged | It is used to create checkbox. |
| CheckBoxList | SelectedIndexChanged | It is used to create a group of check boxes that all work together. |
| RadioButton | CheckChanged | It is used to create radio button. |
| RadioButtonList | SelectedIndexChanged | It is used to create a group of radio button controls that all work together. |
| Image | None | It is used to show image within the page. |
| Panel | None | It is used to create a panel that works as a container. |
| PlaceHolder | None | It is used to set placeholder for the control. |
| Calendar | SelectionChanged, VisibleMonthChanged, DayRender | It is used to create a calendar. We can set the default date, move forward and backward etc. |
| AdRotator | AdCreated | It allows us to specify a list of ads to display. Each time the user re-displays the page. |
| Table | None | It is used to create table. |
| XML | None | It is used to display XML documents within the HTML. |
| Literal | None | It is like a label in that it displays a literal, but allows us to create new literals at runtime and place them into this control. |
Server controls in ASP.NET page framework
The ASP.NET page framework includes a number of built-in server controls that are designed to provide a more structured programming model for the Web. These controls provide the following features:
- Automatic state management.
- Simple access to object values without having to use the
Requestobject. - Ability to react to events in server-side code to create applications that are better structured.
- Common approach to building user interfaces for web pages.
- Output is automatically customized based on the capabilities of the browser.
In addition to the built-in controls, the ASP.NET page framework also provides the ability to create user controls and custom controls. User controls and custom controls can enhance and extend existing controls to build a much richer user interface.
ASP.NET Web Server Controls Overview
- Article
- 10/22/2014
- 5 minutes to read
When you create ASP.NET Web pages, you can use these types of controls:
- HTML server controls HTML elements exposed to the server so you can program them. HTML server controls expose an object model that maps very closely to the HTML elements that they render.
- Web server controls Controls with more built-in features than HTML server controls. Web server controls include not only form controls such as buttons and text boxes, but also special-purpose controls such as a calendar, menus, and a tree view control. Web server controls are more abstract than HTML server controls in that their object model does not necessarily reflect HTML syntax.
- Validation controls Controls that incorporate logic to enable you to what users enter for input controls such as the TextBox control. Validation controls enable you to check for a required field, to test against a specific value or pattern of characters, to verify that a value lies within a range, and so on. For more information, see Validation ASP.NET Controls.
- User controls Controls that you create as ASP.NET Web pages. You can embed ASP.NET user controls in other ASP.NET Web pages, which is an easy way to create toolbars and other reusable elements. For more information, see ASP.NET User Controls.
Web server controls
Web controls are similar to the HTML server controls such as Button, TextBox, and Hyperlink, except that Web controls have a standardized set of property names. Web server controls offer the following advantages:
- Make it easier for manufacturers and developers to build tools or applications that automatically generate the user interface.
- Simplify the process of creating interactive Web forms, which requires less knowledge of how HTML controls work and make the task of using them less prone to errors.
The System.Web.UI.WebControls.WebControl base class contains all of the common properties. Most of the Web server controls derive from this class.
To use a Web server control, use the following syntax (which uses the TextBox control as an example):
ASP.NET (C#)Copy
Web server controls can be divided into four categories:
- Basic Web Controls
- Validation Controls
- List Controls
- Rich Controls
Types Of Web Controls
Input Controls
Input controls let the user enter data into the application. ASP.NET supports only one input web control: the TextBox. The TextBox behaves like a single-line or multiline edit control, depending on the value of its TextMode property. Its simplified syntax is:
The TextBox control can then be accessed programmatically with a code fragment like:
Note that the text of a TextBox control using the Password text mode cannot be set directly.
2. Display Controls
Display controls simply render text or images to the browser. Table 5-1 lists the display controls ASP.NET supports.
| Control | Purpose |
|---|---|
| Image | Displays the image specified in the control’s ImageUrl property. |
| Label | Displays the text specified in the control’s Text property. |
| Panel | Groups a set of controls (like a Frame control in Windows). |
| Table | Displays a table of information. This control has two collections: TableRows, which contains the rows, and TableCells, which contains the columns in a row. |
| TableCell | Represents a cell in a row of a Table control. |
| TableRow | Represents a row inside a Table control. |
3. Action Controls
Action controls allow users to perform some action on that page, such as navigating to a different URL, submitting a form, resetting a form’s values, or executing a client script. Table 5-2 lists the action controls.
| Control | Purpose |
|---|---|
| Button | Displays a command button that posts a form to the server when clicked. |
| ImageButton | Displays an image that posts a form to the server when clicked. |
| LinkButton | Displays a hyperlink text that posts a form to the server when clicked. |
| Hyperlink | Displays a hyperlink text that navigates from one page to another when clicked. |
4. Selection Controls
Selection controls allow the user to select one or more values from a list. They include both the CheckBox and RadioButton controls, which are designed to work in a group. The RadioButton control allows you to select only one option out of the group, whereas the CheckBox control allows you to select zero or more options. Table 5-3 lists the selection controls.
| Control | Purpose |
|---|---|
| CheckBox | Selects or unselects an option. You can toggle the selection. |
| RadioButton | Selects only one option out of a group. You can unselect an option only by selecting another RadioButton control in the group. |
| ListBox | Allows the user to select one or more options from a list represented by ListItem controls. This control always occupies a fixed space in the form. |
| DropDownList | Allows the user to select only one option out of a list represented by ListItem controls. This control is used where the space in the form is limited. |
| RadioButtonList | Presents a list of radio buttons represented by ListItem controls and allows selection of only one option. |
| CheckBoxList | Presents a list of checkboxes represented by ListItem controls and allows you to select zero or more of the options. |
5. Databound Controls
Databound controls render repetitive data and use templates for the customized rendering of data (the so-called lookless UI). For example, you can define separate templates for the header, body, and footer of a table of data.
We’ll discuss data binding in more detail in Chapter 7. Table 5-4 shows the databound controls.
| Control | Purpose |
|---|---|
| DataGrid | Displays tabular data and can function as an editable grid that supports selecting, editing, sorting, and paging of data. |
| DataList | Displays a list of items that the user can select and edit. |
| Repeater | Displays a repeating list of data items. Their control and layout can be specified using templates. |
Remember that DataGrid and DataList controls can be used with or without templates, but Repeater controls must have at least one ItemTemplate defined. You can also modify the appearance of DataGrids and DataLists by using a series of style properties, each of which ends with Style. These properties include HeaderStyle, ItemStyle, and FooterStyle. For more information on templates and styles, see Section 5.6 later in this chapter.
6. Rich Controls
These high-level custom controls provide rich user interface and functionality. This release of ASP.NET includes two rich controls: the Calendar control and the AdRotator control. Table 5-5 lists the rich controls.
| Control | Purpose |
|---|---|
| AdRotator | Displays different ad images and, when clicked, will navigate to the URL associated with that image. You can define the rotation schedule in an XML file. |
| Calendar | Displays a monthly calendar and lets the user select a date. |
Asp Net Web Server Controls: What They Can Do for Your Site.
Asp Net Web Server Controls can help your site work the way you want it to, including by helping to optimize pages, optimizing images, and improving security. In addition, Asp Net Web Server Controls can help your site look the way you want it to, by adding custom styles and graphics, and adjusting how text is displayed on your pages.
Asp Net Web Server Controls Can Help Your Site Look the Way You Want It to
By using Asp Net Web Server Controls to improve your website’s design, you can create a more sleek and professional appearance. This can save you time and money as well as make your site more user-friendly. For example, you could choose to use a less common color palette for your pages or adjust the font size so that all content is readable.
Asp Net Web Server Controls Can Help Your Site Perform the tasks You Want It to
Asp Net Web Server Controls also offer features that allow you to perform specific tasks on your website, such as managing customer data or creating Warrior Pages that are used by customers in order to contact their merchant directly. By using these tools, you can ensure that your website performs its intended function flawlessly no matter what.
Asp Net Web Server Controls: How They Can Help Your Site Work the Way You Want It to.
Asp Net Web Server is a web server software that enables developers to create and manage webpages. It is released under the GPL, which means it can be used by anyone without paying a fee. Asp Net Web Server 4.0 is the latest stable version, and it supports multiple languages including English, French, German, Spanish, Italian, Dutch, Portuguese, Japanese and Chinese.
How Can Asp Net Web Server Controls Help Your Site Work the Way You Want It to
Asp Net Web Server controls allow you to customize the look of your website in many ways. For example, you can add images and videos to your pages, or change the color scheme and fonts used on your site. You can also set up rules that prevent certain types of requests from being made on your site – for example, preventing users from making online orders or using search engines on your site.
How Can Asp Net Web Server Controls Help Your Site Look the Way You Want It to
Asp Net Web Server can also help you make your website more responsive – meaning it will load faster when visitors visit it. By setting up caching mechanisms and using HTML5 technologies such as video and audio elements, you can improve page speed and usability while reducing browser load times.
Conclusion
Asp Net Web Server Controls can help your site work the way you want it to, providing a more efficient and user-friendly experience. By using latest version of Asp Net Web Server, as well as adding additional features to your site, you can make it easier for users to find what they need and perform tasks the way you want them to. Overall, using asp net web server controls will help improve the overall efficiency and look of your site.