Dealing with XmlTextWriter and null node

Question

I have some code that create xml file on the fly. Sometimes the node has a value and sometimes not. I need to get open and closing tags <hour>12:00</hour> or <hour></hour> even there is no value but I can't find a solution. where the value is empty I am getting <hour />

XmlTextWriter writer = new XmlTextWriter(path + "/" + CustomerId + "/Data/" + CustomerId + ".xml", System.Text.Encoding.UTF8);
writer.WriteStartDocument(true);
writer.Formatting = Formatting.Indented;
writer.Indentation = 2;
writer.WriteStartElement("data");

if (paravalue == null || paravalue == "")
{
    writer.WriteStartElement(para);
    writer.WriteString("");
    writer.WriteEndElement();
}
else
{
    writer.WriteStartElement(para);
    writer.WriteString(paravalue);
    writer.WriteEndElement();
}

I'm not sure why you would need this. `` and `` are equivalent, and fully interchangeable! — Mr Lister, Jan 31 '16 at 08:38

score 0 · Accepted Answer · answered Jan 24 '16 at 13:39

0

Use WriteFullEndElement instead of WriteEndElement.

answered Jan 24 '16 at 13:39

Szabolcs Dézsi

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there is some way to avoid the line break? – Elidotnet Jan 24 '16 at 15:35
Try calling `writer.WriteWhitespace("");` instead of `writer.WriteString("");` in the first branch. – Szabolcs Dézsi Jan 24 '16 at 15:41
get some error: Only white space characters should be used – Elidotnet Jan 24 '16 at 15:59
mmmm now its ok i forget some space between " " – Elidotnet Jan 24 '16 at 16:05

Dealing with XmlTextWriter and null node

1 Answers1