Method WriteStartAttribute

Namespace

Alternet.FormDesigner.Wpf.XamlDom

Assembly

Alternet.FormDesigner.Wpf.v10.dll

WriteStartAttribute(string, string, string)

When overridden in a derived class, writes the start of an attribute with the specified prefix, local name, and namespace URI.

public override void WriteStartAttribute(string prefix, string localName, string ns)

Parameters

prefix string

The namespace prefix of the attribute.

localName string

The local name of the attribute.

ns string

The namespace URI for the attribute.

Exceptions

EncoderFallbackException

There is a character in the buffer that is a valid XML character but is not valid for the output encoding. For example, if the output encoding is ASCII, you should only use characters from the range of 0 to 127 for element and attribute names. The invalid character might be in the argument of this method or in an argument of previous methods that were writing to the buffer. Such characters are escaped by character entity references when possible (for example, in text nodes or attribute values). However, the character entity reference is not allowed in element and attribute names, comments, processing instructions, or CDATA sections.

InvalidOperationException

An XmlWriter method was called before a previous asynchronous operation finished. In this case, InvalidOperationException is thrown with the message “An asynchronous operation is already in progress.”