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## ASP.NET WebControl BorderColor Property The `BorderColor` property is a standard property shared across ASP.NET Web server controls. It allows developers to define or retrieve the color of a control's border. --- ## Definition and Usage The `BorderColor` property is used to set or return the border color of a Web server control. When rendered, this property translates into the CSS `border-color` style attribute on the generated HTML element. To make the border visible, you must also specify a `BorderWidth` (greater than 0) and typically a `BorderStyle` (such as `Solid`, `Double`, etc.). --- ## Syntax ```xml ``` ### Property Values | Value | Description | | :--- | :--- | | `color` | Specifies the color of the control's border. This must be a valid HTML/CSS color representation. | ### Accepted Color Formats The `color` value can be defined in several standard formats: * **Color Names**: e.g., `Red`, `Blue`, `LightGray` * **Hexadecimal RGB**: e.g., `#FF0000`, `#0000FF` * **RGB/RGBA values**: e.g., `rgb(255, 0, 0)` (supported in modern browsers) --- ## Code Example The following example demonstrates how to set the border color of an ASP.NET `Table` control to red (`#FF0000`). ```xml

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``` --- ## Considerations and Best Practices 1. **Dependency on BorderWidth and BorderStyle**: Setting `BorderColor` alone might not display a border in some browsers if the `BorderWidth` is not set or if the `BorderStyle` defaults to `NotSet` or `None`. Always pair it with `BorderWidth` and `BorderStyle` for consistent cross-browser rendering. 2. **Dynamic Styling via Code-Behind**: You can also set this property programmatically in your C# or VB.NET code-behind file using the `System.Drawing.Color` structure: ```csharp // C# Code-Behind myTable.BorderColor = System.Drawing.Color.FromName("Red"); // Or using Hexadecimal myTable.BorderColor = System.Drawing.ColorTranslator.FromHtml("#FF0000"); ``` 3. **CSS vs. Server Property**: While setting `BorderColor` directly on the server control is convenient, for larger applications, it is often recommended to manage colors and borders using external CSS classes via the `CssClass` property to maintain a clean separation of concerns.