ASP.NET Web Forms TextBox Control: Implementing and Customizing Text Input Fields
Learn how to use the TextBox control in ASP.NET Web Forms to create and customize text input fields. This tutorial provides a practical guide, including code examples, property explanations, and best practices for handling user input in your web forms.
ASP.NET Web Forms TextBox Control
Introduction to the TextBox Control
The TextBox control in ASP.NET Web Forms is a server-side input control used to obtain text input from users. It allows users to enter and edit text within a designated area on a web form. Like other server-side controls, the TextBox is processed on the server before the HTML is sent to the user's browser. You can add a TextBox control to your web form either by dragging and dropping it from the Visual Studio toolbox or by writing the HTML code directly into your ASPX file.
Creating a TextBox Control
Here's how to create a TextBox using ASP.NET syntax:
Syntax
<asp:TextBox ID="TextBox1" runat="server"></asp:TextBox>
Rendered HTML Output
<input type="text" name="TextBox1" id="TextBox1">
TextBox Control Properties
The TextBox control has various properties for customization:
| Property | Description |
|---|---|
| AccessKey | Sets a keyboard shortcut. |
| TabIndex | Specifies the tab order. |
| BackColor | Sets the background color. |
| BorderColor | Sets the border color. |
| BorderWidth | Sets the border width. |
| Font | Sets the font style. |
| ForeColor | Sets the text color. |
| Text | Sets the initial text displayed. |
| ToolTip | Text displayed on hover. |
| Visible | Controls visibility. |
| Height | Sets the height of the TextBox. |
| Width | Sets the width of the TextBox. |
| MaxLength | Sets the maximum number of characters allowed. |
| ReadOnly | Makes the TextBox read-only. |
Example: Handling TextBox Input
(An example showing how to use the TextBox control within an ASP.NET Web Form, including the related C# code-behind to handle user input, a screenshot of the property window, and a screenshot of the output displaying the user's input, would be included here. The example code and output from the original text would be included in the HTML.)