public void AttributeEncode()
{
string onlyQuotes = "{\"someprop\": 1, \"someprop2\", \"someval\"}";
string onlyApos = "{'someprop': 1, 'someprop2', 'someval'}";
string both = "{\"someprop\": 1, \"someprop2\", \"o'brien\"}";
string neither = "plain old text";
string quoteChar;
string result = HtmlData.AttributeEncode(onlyQuotes, true, out quoteChar);
Assert.AreEqual(onlyQuotes, result, "With only quotes, nothing changed");
Assert.AreEqual("'", quoteChar, "Quote char was an apostrophe with only quotes");
result = HtmlData.AttributeEncode(onlyApos, true, out quoteChar);
Assert.AreEqual(onlyApos, result, "With only apostrophes, nothing changed");
Assert.AreEqual("\"", quoteChar, "Quote char was a quote with only apos");
result = HtmlData.AttributeEncode(both, true, out quoteChar);
string expected = "{\"someprop\": 1, \"someprop2\", \"o'brien\"}";
Assert.AreEqual(expected, result, "With both, only apostrophes changed");
Assert.AreEqual("'", quoteChar, "Quote char was an apos with both");
result = HtmlData.AttributeEncode(neither, true, out quoteChar);
Assert.AreEqual(neither, result, "With neither, nothing changeed");
Assert.AreEqual("\"", quoteChar, "Quote char was a quote with both");
}
/// <summary>
/// Render an attribute.
/// </summary>
///
/// <param name="writer">
/// The writer to which output is written.
/// </param>
/// <param name="name">
/// The name of the attribute.
/// </param>
/// <param name="value">
/// The attribute value.
/// </param>
/// <param name="quoteAll">
/// true to require quotes around the attribute value, false to use quotes only if needed.
/// </param>
protected void RenderAttribute(TextWriter writer, string name, string value, bool quoteAll)
{
// validator.nu: as it turns out "" and missing are synonymous
// don't ever render attr=""
if (value != null && value != "")
{
string quoteChar;
string attrText = HtmlData.AttributeEncode(value,
quoteAll,
out quoteChar);
writer.Write(name.ToLower());
writer.Write("=");
writer.Write(quoteChar);
writer.Write(attrText);
writer.Write(quoteChar);
}
else
{
writer.Write(name);
}
}