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HtmlTextWriter.EncodeUrl Method

Performs minimal URL encoding by converting spaces in the specified URL to the string "%20".

Namespace:  System.Web.UI
Assembly:  System.Web (in System.Web.dll)

protected string EncodeUrl(
	string url


Type: System.String

A string containing the URL to encode.

Return Value

Type: System.String
A string containing the encoded URL.

URL encoding of a character consists of a percent symbol (%), followed by the two-digit hexadecimal representation (case-insensitive) of the ISO-Latin code point for the character. The hexadecimal representation of a space is 20.

The following code example demonstrates how to call the EncodeUrl method to convert any spaces in the URL that is passed as a parameter in an AddAttribute method call.

// If an <anchor> element is rendered and an href 
// attribute has not been defined, call the AddAttribute 
// method to add an href attribute 
// and set it to http://www.cohowinery.com. 
// Use the EncodeUrl method to convert any spaces to %20. 
if (TagKey == HtmlTextWriterTag.A)
    if (!IsAttributeDefined(HtmlTextWriterAttribute.Href))
        AddAttribute("href", EncodeUrl("http://www.cohowinery.com"));

.NET Framework

Supported in: 4.6, 4.5, 4, 3.5, 3.0, 2.0, 1.1
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