Need help modifying XML file...

[VB Programmer]

I have this xml file...

<?xml version="1.0" encoding="utf-8" standalone="yes"?>
<images>
<pic>
<image>http://www.somesite.com/mypic.jpg</image>
<caption>Picture 1 is here</caption>
</pic>
<pic>
<image>http://www.somesite.com/mypic2.jpg</image>
<caption>Picture 2 is here</caption>
</pic>
</images>

Using VB.NET how could I add, edit and remove a <pic> item, consisting of an
<image> and <caption>? Any sample code you could post? I'm an xml newb.

The xml file is resident on the root of this website.

Thanks!

[Pascal Schmitt]

VB Programmer wrote:

I have this xml file...

<?xml version="1.0" encoding="utf-8" standalone="yes"?>
<images>
<pic>
<image>http://www.somesite.com/mypic.jpg</image>
<caption>Picture 1 is here</caption>
</pic>
<pic>
<image>http://www.somesite.com/mypic2.jpg</image>
<caption>Picture 2 is here</caption>
</pic>
</images>

Using VB.NET how could I add, edit and remove a <pic> item, consisting of an
<image> and <caption>? Any sample code you could post? I'm an xml newb.

XmlDocument doc = new XmlDocument();
doc.Load(..);

To add a new Item with an attribute and an image-Child node with some
text content use:

XmlElement newItem = doc.CreateElement("pic");
XmlElement newImage = doc.CreateElement("image");
newImage.AppendChild( doc.CreateTextNode("http://...") );
newItem.AppendChild( newImage );
doc.DocumentElement.AppendChild( newItem );

There are many ways to remove an item. Most flexible is to use XPath:

XmlElement e = doc.SelectSingleNode("/images/pic[starts-with(caption,
'Picture 1')]") as XmlElement;
e.ParentNode.RemoveChild( e );

Or you could remove the first pic:

doc.DocumentElement.RemoveChild( doc.DocumentElement.FirstChild );

Editing nodes is mostly just adding and removing their child nodes. Only
Text-Nodes can be directly altered.
Best thing is to see the documentation:
<http://msdn2.microsoft.com/library/System.Xml.XmlDocument>
<http://msdn2.microsoft.com/library/System.Xml.XmlNode>
<http://msdn2.microsoft.com/library/System.Xml.XmlElement>

--
Pascal Schmitt

[VB Programmer]

Great response! Thanks.

"Pascal Schmitt" <ne*******@cebra.nu> wrote in message
news:OK**************@TK2MSFTNGP12.phx.gbl...

VB Programmer wrote:

I have this xml file...

<?xml version="1.0" encoding="utf-8" standalone="yes"?>
<images>
<pic>
<image>http://www.somesite.com/mypic.jpg</image>
<caption>Picture 1 is here</caption>
</pic>
<pic>
<image>http://www.somesite.com/mypic2.jpg</image>
<caption>Picture 2 is here</caption>
</pic>
</images>

Using VB.NET how could I add, edit and remove a <pic> item, consisting of
an <image> and <caption>? Any sample code you could post? I'm an xml
newb.

XmlDocument doc = new XmlDocument();
doc.Load(..);

To add a new Item with an attribute and an image-Child node with some text
content use:

XmlElement newItem = doc.CreateElement("pic");
XmlElement newImage = doc.CreateElement("image");
newImage.AppendChild( doc.CreateTextNode("http://...") );
newItem.AppendChild( newImage );
doc.DocumentElement.AppendChild( newItem );

There are many ways to remove an item. Most flexible is to use XPath:

XmlElement e = doc.SelectSingleNode("/images/pic[starts-with(caption,
'Picture 1')]") as XmlElement;
e.ParentNode.RemoveChild( e );

Or you could remove the first pic:

doc.DocumentElement.RemoveChild( doc.DocumentElement.FirstChild );

Editing nodes is mostly just adding and removing their child nodes. Only
Text-Nodes can be directly altered.
Best thing is to see the documentation:
<http://msdn2.microsoft.com/library/System.Xml.XmlDocument>
<http://msdn2.microsoft.com/library/System.Xml.XmlNode>
<http://msdn2.microsoft.com/library/System.Xml.XmlElement>

--
Pascal Schmitt