mirror of
https://github.com/Stone-Red-Code/docs-desktop.git
synced 2026-09-05 07:56:11 +02:00
Andy De George
9371b0126b
* add toc/bread changes * add xaml-services * add ported wpf content * add xaml-services info to docfx * Fix links 1 * Fix links 2 * Fix links 3 * Fix links 4 * Fix links 5 * Fix links 6 * Fix links 7 * Fix xaml-services link * Fix snippets 1 * Fix snippets 2 * adjust breadcrumb and toc * remove preserve-view from breadcrumbs * add empty view to toc item xaml * update include * remove contextual toc for vs article :(
61 lines
2.8 KiB
Markdown
61 lines
2.8 KiB
Markdown
---
|
|
title: "{} Escape Sequence - Markup Extension"
|
|
ms.date: "03/30/2017"
|
|
f1_keywords:
|
|
- "{}"
|
|
helpviewer_keywords:
|
|
- "XAML [XAML Services], quotation mark (\")"
|
|
- "{} escape sequence [XAML Services]"
|
|
- "XAML [XAML Services], {} escape sequence"
|
|
- "XAML [XAML Services], escape sequence"
|
|
- "quotation mark (\") [XAML Services]"
|
|
- "escape sequence [XAML Services]"
|
|
ms.assetid: 3ce3e2ad-a868-43f9-9c98-b29561cb146e
|
|
---
|
|
# {} Escape sequence / markup extension
|
|
|
|
Provides the XAML escape sequence for attribute values. The escape sequence allows the subsequent values in the attribute to be interpreted as a literal.
|
|
|
|
## XAML Attribute Usage
|
|
|
|
```xaml
|
|
<object property="{} literalValue" .../>
|
|
```
|
|
|
|
## XAML Property Element Usage
|
|
|
|
```xaml
|
|
<object>
|
|
<object.property>
|
|
{} literalValue
|
|
</object.property>
|
|
</object>
|
|
```
|
|
|
|
## XAML Values
|
|
|
|
|||
|
|
|-|-|
|
|
|*literalValue*|The literal string that follows the escape sequence. Typically this string contains an open or close brace ({ or }).|
|
|
|
|
## Remarks
|
|
|
|
The escape sequence ({}) is used so that an open brace ({) can be used as a literal character in XAML.
|
|
|
|
XAML readers typically use the open brace ({) to denote the entry point of a markup extension; however, they first check the next character to determine whether it is a closing brace (}). Only when the two braces ({}) are adjacent, are they considered an escape sequence.
|
|
|
|
If the escape sequence is encountered, the XAML reader should process the remainder of the string as a string. However, if the escape sequence is applied to a member that has a type converter, the string might undergo type conversion when it is interpreted by a XAML writer.
|
|
|
|
The escape sequence is not a markup extension and is not backed by a class. However, it is a convention that XAML readers (including custom XAML readers) should respect.
|
|
|
|
A quotation mark (") cannot be used as an escape sequence in this manner. If you need to set a quotation mark as a property value for a noncontent property, use property element syntax and place the quotation mark as a string inside the property element, or use an XML character entity. For a content property, the quotation mark can be the entire content.
|
|
|
|
The escape sequence ({}) is frequently required when specifying an XML type that must include a namespace qualifier in a location where a XAML markup extension might appear. This location includes the start of a XAML attribute value, and in a markup extension immediately after an equal sign (=). The following example shows escape sequences for an XML namespace that appears at the start of a XAML attribute value.
|
|
|
|
[!code-xaml[XLINQExample#StackPanelResources](~/samples/snippets/csharp/VS_Snippets_Wpf/XLinqExample/CSharp/Window1.xaml#stackpanelresources)]
|
|
|
|
## See also
|
|
|
|
- [Type Converters and Markup Extensions for XAML](type-converters-and-markup-extensions.md)
|
|
- [XML Character Entities and XAML](xml-character-entities.md)
|