Asp.net Web Developer's Guide: Creating Custom ASP Server User Controls

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Wednesday, March 29, 2006

Creating Custom ASP Server User Controls

We may develop our own server controls by extending an existing control or a group of controls to provide additional functionalities. As stated earlier, there are two versions of custom controls:Web User Controls and Web Custom Controls.The Web User Controls are easy to develop and these are typically stored as ascx files. The Web Custom Controls require in-depth knowledge of Object Oriented Programming and CLR.These are stored in compiled form as assemblies. A user control, if developed correctly, functions like any other controls. It can be placed inside any other host ASP page (often called the “Consumer” of a control). In this section we will provide two examples on how to develop and use a Web User Control. In the first example, we will develop a very simple user control. In the second example, we will develop a user control that will expose some of its properties to its host page class.

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Refer link : Comparing Improvements in ASP.Net To Previous ASP Models | How Web Servers Execute ASP Files | Compiling and Delivering ASP.Net | Requirement Make ASP.Net Working | Creating Your First ASP.Net Application | Upgrading from Classic ASP | Taking Security Precautions | ASP.Net Namespaces | More About Namespaces in ASP.Net | Collection of Namespaces in ASP.Net | Description Data Type | Enabling Client / Browser Communication with the System.Web NameSpace | System.Web.Services.Namespace Set | Processing XML Files Using the System.XML Namespace | ASP Server Control | Collecting Data Using HTML Forms | Server-Side Processing in ASP.Net | A Simple Application Using Conventional HTML Controls | A Simple Application Using ASP Server Controls | A Simple Application Using Conventional HTML Controls | Using VS.Net for Developing a Web Application | Using HTML Server Control | Using the HTML InputFile Control | Using ASP.Net Web Control | Using Labels, TextBoxes, RadioButtons , CheckBoxes , And DropDownLists | Using HyperLink Controls | Binding a ListControl to an ArrayList | Validation Controls | The RequiredFieldValidator Control | The RegularExpressionValidator Control | Validating Patterned Strings, Passwords, and Dates | Populating myDataSet and Binding a ListControl Example | The CompareValidator Control | The RangeValidator Control | The CustomValidator Control | CustomValidator with Explicit Client-Side Validation Function | The ValidationSummary Control | Using The Repeater Server Control | Using Event Bubbling and Capturing Events in a Repeater Control | Using the DataList Control | Using RepeatDirection and RepeatColumn Properties of a DataList | Capturing Selected Items in a DataList Control | Using the DataGrid Control | Displaying Data in DataGrid Control Using Default Column Mapping | Displaying Formatted Data with Styles | Sorting DataGrid | Providing Paging in DataGrid | Navigating to a Selected Page | Providing Data Editing Capability in a DataGrid Control | Creating Custom ASP Server User Controls | Creating A Simple Web User Control | Exposing Properties of a User Control