how to get value of XML tag attribute in C#?

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Saurabh - 29 Sep 2006 08:08 GMT

Hi,
my xml is:
<ROOT>
<FILE NAME="filename">CDATA</FILE>
</ROOT>

this xml is argument to a function in C#.
i want to get the filename in a string variable.
how do i do it???
GetElementByTagname("FILE)[0].Attribute retrieves attributelist
how do i get the value of attribute????

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Daniel - 29 Sep 2006 10:03 GMT

like this:

XmlTextReader tr = new XmlTextReader(filename);
while (tr.Read())
{
if (tr.NodeType == XmlNodeType.Element)
{
switch (tr.LocalName)
{

case ("FILENAME"):
_fileName= int.Parse(tr.ReadString());
break;
}
}
}

but your xml would need to look like this:

<ROOT>
<FILENAME>CDATA</FILENAME>
</ROOT>

that would do it.

> Hi,
> my xml is:
[quoted text clipped - 7 lines]
> GetElementByTagname("FILE)[0].Attribute retrieves attributelist
> how do i get the value of attribute????

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Saurabh - 30 Sep 2006 07:49 GMT

Thanks Daniel, i learned a new way to access XML.
The problem is that the xml has to look like:
<ROOT>
<FILE NAME="filename"></FILE>
</ROOT>

beacuse the xml is generated by a recursive function which scans the
file system (DirectoryInfo ans FileInfo class) and generate a xml. The
exact xxml format is:
<ROOT>
<DIRECTORY>
<FILE NAME="filename">CDATA contains filestream</FILE>
<FILE NAME="filename">CDATA contains filestream</FILE>
</DIRECTORY>
<DIRECTORY>
<FILE NAME="filename">CDATA contains filestream</FILE>
<FILE NAME="filename">CDATA contains filestream</FILE>
</DIRECTORY>
</ROOT>

you never know if the filename can be same with different extension.
just to be precautious i have made the file tag with filename as
attribute.

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GVN - 30 Sep 2006 12:56 GMT

Hi Saurabh,

I hope the following code should help you.

XmlDocument _Document = new XmlDocument();
XmlNodeList properties;
_Document.Load (XmlFileName);
XmlNodeList properties = _Document["Design"].ChildNodes;
foreach (XmlNode property in properties)
{
    if(property.HasChildNodes)
    {
        XmlNodeList childNodes = property.ChildNodes;
        foreach(XmlNode childNode in childNodes)
        {
        MessageBox.Show(childNode.Attributes["FILE"].Value); // You can
show file name.
        }
    }
}

Thanks,
Muralidhar GVN

> Thanks Daniel, i learned a new way to access XML.
> The problem is that the xml has to look like:
[quoted text clipped - 19 lines]
> just to be precautious i have made the file tag with filename as
> attribute.

Reply to this Message

how to get value of XML tag attribute in C#?

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