Help with simple XPath query?

[sherifffruitfly]

Hi all,

I'm never gonna get the xml part of c#.... sigh....

My xml file is structured as so:

<?xml version=.....?>
<TheAs>
<TheA filename="name1" enabled="true" />
<TheA filename="name2" enabled="false" />
..
..
..
</TheAs>

I'm trying to update the boolean field - here's what I've pasted
together (doesn't work of course):

string enabledQ = (e.NewValue == CheckState.Checked)?"true":"false";

XmlDocument doc = new XmlDocument();
XmlTextReader reader = null;
try
{
reader = new XmlTextReader(selectedAsPath + selectedAs);
doc.Load(reader);
XmlElement root = doc.DocumentElement;

string nodeNeeded = lv_myListView.Items[e.Index].Text;

string xPathQuery = "/WmpmHistoryFiles/WmpmHistoryFile[filename=
\"" + nodeNeeded + "\"]";

XmlElement tempNode = root.SelectSingleNode(xPathQuery) as
XmlElement;
if (tempNode != null)
{
tempNode.SetAttribute("enabled", enabledQ);
Utility.Utility.OutputToLog("Successfully wrote enabled
value.");
}
else
{
Utility.Utility.OutputToLog("Could not find entry.");
}
catch(Exception ex)
{
Utility.Utility.OutputToLog("Error saving settings to XML file.
\n" + ex.Message);
}
finally
{
doc.Save(selectedAsPath + selectedAs);
if (reader != null)
{
reader.Close();
}
}


Thanks for any help getting the xpath right,

cdj

 

[Jon Skeet [C# MVP]]

I'm never gonna get the xml part of c#.... sigh....

Well, XPath is *completely* independent of C#, but there we go...

Could you post a short but complete program which demonstrates the
problem?

See http://www.pobox.com/~skeet/csharp/complete.html for details of
what I mean by that.

 

[sherifffruitfly]

sherifffruitfly <[email protected]> wrote:

Could you post a short but complete program which demonstrates the
problem?

Seehttp://www.pobox.com/~skeet/csharp/complete.htmlfor details of
what I mean by that.

Hey! This isn't the LaTeX group! (lol!)

In any case, no worries - got it on my own "@filename" instead of
"filename" in my posted code. I hate xml.

Also needed to close the reader BEFORE saving the documnent...


Thanks anyway,

cdj