WebUtility.HtmlEncode Method
Important
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Converts a string to an HTML-encoded string.
| HtmlEncode(String) |
Converts a string to an HTML-encoded string. |
| HtmlEncode(String, TextWriter) |
Converts a string into an HTML-encoded string, and returns the output as a TextWriter stream of output. |
- Source:
- WebUtility.cs
- Source:
- WebUtility.cs
- Source:
- WebUtility.cs
Converts a string to an HTML-encoded string.
public:
static System::String ^ HtmlEncode(System::String ^ value);public static string HtmlEncode(string value);public static string? HtmlEncode(string? value);static member HtmlEncode : string -> stringPublic Shared Function HtmlEncode (value As String) As StringParameters
- value
- String
The string to encode.
Returns
An encoded string.
Remarks
If characters such as blanks and punctuation are passed in an HTTP stream, they might be misinterpreted at the receiving end. HTML encoding converts characters that are not allowed in HTML into character-entity equivalents; HTML decoding reverses the encoding. For example, when embedded in a block of text, the characters < and > are encoded as < and > for HTTP transmission.
If the value parameter is null, then the returned encoded string is null. If the value parameter is an empty string, then the returned encoded string is an empty string.
See also
- HtmlDecode(String)
- HtmlDecode(String)
- Uri
- How to: Protect Against Script Exploits in a Web Application by Applying HTML Encoding to Strings
Applies to
.NET 10 та інші версії
| Продукт | Версії |
|---|---|
| .NET | Core 1.0, Core 1.1, Core 2.0, Core 2.1, Core 2.2, Core 3.0, Core 3.1, 5, 6, 7, 8, 9, 10 |
| .NET Framework | 4.0, 4.5, 4.5.1, 4.5.2, 4.6, 4.6.1, 4.6.2, 4.7, 4.7.1, 4.7.2, 4.8, 4.8.1 |
| .NET Standard | 1.0, 1.1, 1.2, 1.3, 1.4, 1.5, 1.6, 2.0, 2.1 |
| UWP | 10.0 |
- Source:
- WebUtility.cs
- Source:
- WebUtility.cs
- Source:
- WebUtility.cs
Converts a string into an HTML-encoded string, and returns the output as a TextWriter stream of output.
public:
static void HtmlEncode(System::String ^ value, System::IO::TextWriter ^ output);public static void HtmlEncode(string? value, System.IO.TextWriter output);public static void HtmlEncode(string value, System.IO.TextWriter output);static member HtmlEncode : string * System.IO.TextWriter -> unitPublic Shared Sub HtmlEncode (value As String, output As TextWriter)Parameters
- value
- String
The string to encode.
- output
- TextWriter
A TextWriter output stream.
Exceptions
The output parameter cannot be null if the value parameter is not null.
Remarks
If characters such as blanks and punctuation are passed in an HTTP stream, they might be misinterpreted at the receiving end. HTML encoding converts characters that are not allowed in HTML into character-entity equivalents; HTML decoding reverses the encoding. For example, when embedded in a block of text, the characters < and > are encoded as < and > for HTTP transmission.
See also
- HtmlDecode(String, TextWriter)
- HtmlDecode(String, TextWriter)
- Uri
- How to: Protect Against Script Exploits in a Web Application by Applying HTML Encoding to Strings
Applies to
.NET 10 та інші версії
| Продукт | Версії |
|---|---|
| .NET | Core 2.0, Core 2.1, Core 2.2, Core 3.0, Core 3.1, 5, 6, 7, 8, 9, 10 |
| .NET Framework | 4.0, 4.5, 4.5.1, 4.5.2, 4.6, 4.6.1, 4.6.2, 4.7, 4.7.1, 4.7.2, 4.8, 4.8.1 |
| .NET Standard | 2.0, 2.1 |
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