Question

I have a DataSet named dS in which i want to load XML.

So i would use the function dS.ReadXml();

The paramter for ReadXml function is XmlTextReader Object.

If i pass object as

ds.ReadXml(new XmlTextReader(Application.StartupPath + "\\MyDataSource.xml"));

the dataset would be loaded. But later on, i want to close that XmlTextReader object. Although i didn’t declared it with a name like

XmlTextReader reader = new XmlTextReader(somepath);

How can i close the reader???

Answer 1

You’ll need to use a variable, otherwise you can’t access it.

And while you are at it, use the using statement:

string path = Path.Combine(Application.StartupPath, "MyDataSource.xml"));
using (var reader = new XmlTextTreader(path))
{
  ds.ReadXml(reader);
}

The using statement automatically calls Dispose on reader when exiting the scope of the using statement.

Note: You should use Path.Combine instead of concatting the path yourself. Saves you a lot of trouble.