There is no way to tell XmlTextReader to ignore the whitespace.
My suggestion of passing a wrapper Stream to XmlTextReader does require
double copy of read buffers, but other than it is pretty efficient.
new XmlTextReader(new WhiteSpaceTrimmingStream(new FileStream(filename)));
Where
class WhiteSpaceTrimmingReader : TextReader {
StreamReader file;
bool firstRead = true;
WhiteSpaceTrimmingStream(StreamReader file) {
this.file = file;
}
public override int Read(char[] buffer, int offset, int len) {
int found = 0;
while (found == 0) {
found = file.Read(buffer, offset, len);
if (firstRead) {
int i = 0;
while (i < found) {
char ch = buffer[i];
if (ch != ' ' && ch != '\t' && ch != '\r' && ch != '\n')
{
break;
}
}
if (i > 0) {
Array.Copy(buffer, i, buffer, 0, found - i);
found -= i;
}
}
}
return found;
}
// and delegate the rest of Stream API to underlying stream.
}
[quoted text, click to view] "prasad" <prasad.dannani@net.pennywisesolutions.com> wrote in message
news:%23$7g4GbRFHA.3544@TK2MSFTNGP12.phx.gbl...
> In mycase, i have to use XMLTextReader because of its advantages. But if i
> use filestreams and load the complete info to a string and then using
> xmlreader classes to read the values then its a double work with out any
> advantage.
>
> Anyway thanks for helping. can anyone please suggest me that is there any
> property or class to help me which will support all the advantages of
> xmltextreaders
>
>
> "Chris Lovett" <someone@nospam.please> wrote in message
> news:ypSdnc66qa15aPjfRVn-gw@comcast.com...
>> Yes, it turns out that spaces before the xml declaration is not fully
>> standards compliant, so you XML would not have worked across other
> platforms
>> and we opted to go for best interoperability in .NET classes by enforcing
>> standards compliance (since interoperability is what XML is all about).
>>
>> You could preload the file into a string and Trim the spaces then pass
>> the
>> result via StringReader to XmlReader or you could provide a more
>> efficient
>> solution by wrapping FileStream with your own clever Stream class that
>> strips initial whitespace.
>>
>> "prasad" <prasad.dannani@net.pennywisesolutions.com> wrote in message
>> news:%23OgUEmWRFHA.3144@tk2msftngp13.phx.gbl...
>> > Hi,
>> > I am using XMLTextReader class to read the xml files.
>> > In some cases xml declaration tag might start after space/tab
> charecters.
>> > These kind of files are supported by the browsers and xml dom's
>> > but the xmltextreader's are not supporting to read this kind of files.
>> >
>> > Using XMLTextReaders is there anyway to read this kind of files.
>> >
>> > Thanks in advance,
>> > Prasad Dannani.
>> >
>> >
>> >
>>
>>
>
>
