/// Creates a single string of name/value pairs from the
/// Attributes collection of the supplied RestDataItem
/// pairs are delimited by semi-colons.
/// Example: name="value"; name-1="value-1"; name-2="value-2"
private string GetAttributeString(HttpDataSource dataSource)
{
if (dataSource.Attributes != null)
{
StringBuilder attributeBuilder = new StringBuilder();
for (int i = 0; i < dataSource.Attributes.Count; i++)
{
attributeBuilder.AppendFormat("{0}=\"{1}\"{2}",
dataSource.Attributes.Keys[i],
dataSource.Attributes[dataSource.Attributes.Keys[i]],
(i < (dataSource.Attributes.Count - 1)) ? "; " : string.Empty);
}
return(attributeBuilder.ToString());
}
return(null);
}
private void AppendDataItem(Stream stream, HttpDataSource dataItem, string boundary, Encoding encoding)
{
StringBuilder dataItemBuilder = new StringBuilder();
byte[] newlineBytes = encoding.GetBytes("\r\n");
dataItemBuilder.Append("--" + boundary + "\r\n");
dataItemBuilder.AppendFormat("Content-Disposition: form-data; {0}\r\n", GetAttributeString(dataItem));
dataItemBuilder.AppendFormat("Content-Type: {0}\r\n", dataItem.ContentType);
dataItemBuilder.Append("\r\n");
stream.Write(encoding.GetBytes(dataItemBuilder.ToString()), 0, encoding.GetByteCount(dataItemBuilder.ToString()));
if (dataItem.Data != null)
{
stream.Write(dataItem.Data, 0, dataItem.Data.Length);
}
stream.Write(newlineBytes, 0, newlineBytes.Length);
}