Can someone show me a snippet that creates a very simple XML doc with either
a root and chilc nodes or root child nodes, and attributes.

I have looked all around and every example I try I get an error of either:

1. Cannot set a value on node type: Element.
2. Specified argument was out of the range of valid values.
3. This document already has a DocumentElement node.

Here is the code i've been working with:
XmlDocument xDoc= new XmlDocument();
XmlDeclaration xmlDecl = xDoc.CreateXmlDeclaration("1.0", "utf-8", null);
xDoc.AppendChild(xmlDecl);
XmlAttribute nameAttr;
int f = 3;

for (int i = 0; i <= f; i ++)
{
XmlNode topNode = xDoc.CreateNode(XmlNodeType.Element, "blah", null);

nameAttr = xDoc.CreateAttribute(null, "a", null);
nameAttr.Value = "123";
topNode.Attributes.Append(nameAttr);
nameAttr = xDoc.CreateAttribute(null, "b", null);
nameAttr.Value = "123";
topNode.Attributes.Append(nameAttr);
nameAttr = xDoc.CreateAttribute(null, "c", null);
nameAttr.Value = "123";
topNode.Attributes.Append(nameAttr);
nameAttr = xDoc.CreateAttribute(null, "d", null);
nameAttr.Value = "123";
topNode.Attributes.Append(nameAttr);
nameAttr = xDoc.CreateAttribute(null, "e", null);
nameAttr.Value = "123";
topNode.Attributes.Append(nameAttr);
}

I have tried all different node types and no luck. thnx.

Hi,

> 1. Cannot set a value on node type: Element.

Use the InnerText property instead.

> 2. Specified argument was out of the range of valid values.

On which line does this error happen?

> 3. This document already has a DocumentElement node.

Looks like you are trying to create multiple top-level nodes, which is
prohibited. I can't see from your code where you append the created nodes to
xDoc - again, can you specify the exact line where this error happens?

--
Sincerely,
Dmitriy Lapshin [C# / .NET MVP]
Bring the power of unit testing to the VS .NET IDE today!
http://www.x-unity.net/teststudio.aspx

"aaa" <(E-Mail Removed)> wrote in message
news:%(E-Mail Removed)...
> Can someone show me a snippet that creates a very simple XML doc with
> either
> a root and chilc nodes or root child nodes, and attributes.
>
> I have looked all around and every example I try I get an error of either:
>
> 1. Cannot set a value on node type: Element.
> 2. Specified argument was out of the range of valid values.
> 3. This document already has a DocumentElement node.
>
> Here is the code i've been working with:
> XmlDocument xDoc= new XmlDocument();
> XmlDeclaration xmlDecl = xDoc.CreateXmlDeclaration("1.0", "utf-8",
> null);
> xDoc.AppendChild(xmlDecl);
> XmlAttribute nameAttr;
> int f = 3;
>
> for (int i = 0; i <= f; i ++)
> {
> XmlNode topNode = xDoc.CreateNode(XmlNodeType.Element, "blah", null);
>
> nameAttr = xDoc.CreateAttribute(null, "a", null);
> nameAttr.Value = "123";
> topNode.Attributes.Append(nameAttr);
> nameAttr = xDoc.CreateAttribute(null, "b", null);
> nameAttr.Value = "123";
> topNode.Attributes.Append(nameAttr);
> nameAttr = xDoc.CreateAttribute(null, "c", null);
> nameAttr.Value = "123";
> topNode.Attributes.Append(nameAttr);
> nameAttr = xDoc.CreateAttribute(null, "d", null);
> nameAttr.Value = "123";
> topNode.Attributes.Append(nameAttr);
> nameAttr = xDoc.CreateAttribute(null, "e", null);
> nameAttr.Value = "123";
> topNode.Attributes.Append(nameAttr);
> }
>
> I have tried all different node types and no luck. thnx.
>
>
>

A moderate sized example. I've left out a long section of code that pulls
information from a DataTable and puts it into 'page' nodes. This is pulled
from a working report generation function. Note that I've turned the code
that creates a text element into a subroutine call.

public XmlDocument TimeSumDoc()
{
int result = 0;
if ((result = LoadTimeData(m_start, m_end)) < 0)
{
throw new ArgumentOutOfRangeException("Period or Personnel", "No charge
data for period.");
}
XmlDocument doc = new XmlDocument();
doc.AppendChild(doc.CreateXmlDeclaration("1.0", null, null));
XmlElement root = doc.CreateElement("TimeSummary");
XmlElement dateTime = doc.CreateElement("DateTime");
dateTime.AppendChild(XmlTextNode(doc, "date",
DateTime.Now.ToShortDateString()));
dateTime.AppendChild(XmlTextNode(doc, "time",
DateTime.Now.ToShortTimeString()));
root.AppendChild(dateTime);
root.AppendChild(XmlTextNode(doc, "perStart",
m_start.ToShortDateString()));
root.AppendChild(XmlTextNode(doc, "perEnd", m_end.ToShortDateString()));
XmlElement page = null;
{
// a lot of code to form one or more page nodes appending each as it
goes
}
root.AppendChild(page); // append the last one
}
doc.AppendChild(root);
return doc;
}
/// <summary>
/// Creates an xml element node with the specified name and text
/// </summary>
/// <param name="doc">associated document</param>
/// <param name="nodeName">node name to use</param>
/// <param name="nodeText">node text</param>
/// <returns></returns>
private XmlElement XmlTextNode(XmlDocument doc, string nodeName, string
nodeText)
{
XmlElement result = doc.CreateElement(nodeName);
result.AppendChild(doc.CreateTextNode(nodeText));
return result;
}

Ron Allen
"aaa" <(E-Mail Removed)> wrote in message
news:%(E-Mail Removed)...
> Can someone show me a snippet that creates a very simple XML doc with
> either
> a root and chilc nodes or root child nodes, and attributes.
>
---- snip-----

Where is the data coming from. if it's comming from a database you can
use the xml writer built into the dataset to create your xml.

mydataset.GetXml();

That is very easy

also you can get the schema with
mydataset.GetXmlSchema();

Wiz

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Thnx!

"Ron Allen" <rallen@_nospam_src-us.com> wrote in message
news:#(E-Mail Removed)...
> A moderate sized example. I've left out a long section of code that pulls
> information from a DataTable and puts it into 'page' nodes. This is
pulled
> from a working report generation function. Note that I've turned the code
> that creates a text element into a subroutine call.
>
> public XmlDocument TimeSumDoc()
> {
> int result = 0;
> if ((result = LoadTimeData(m_start, m_end)) < 0)
> {
> throw new ArgumentOutOfRangeException("Period or Personnel", "No
charge
> data for period.");
> }
> XmlDocument doc = new XmlDocument();
> doc.AppendChild(doc.CreateXmlDeclaration("1.0", null, null));
> XmlElement root = doc.CreateElement("TimeSummary");
> XmlElement dateTime = doc.CreateElement("DateTime");
> dateTime.AppendChild(XmlTextNode(doc, "date",
> DateTime.Now.ToShortDateString()));
> dateTime.AppendChild(XmlTextNode(doc, "time",
> DateTime.Now.ToShortTimeString()));
> root.AppendChild(dateTime);
> root.AppendChild(XmlTextNode(doc, "perStart",
> m_start.ToShortDateString()));
> root.AppendChild(XmlTextNode(doc, "perEnd",
m_end.ToShortDateString()));
> XmlElement page = null;
> {
> // a lot of code to form one or more page nodes appending each as it
> goes
> }
> root.AppendChild(page); // append the last one
> }
> doc.AppendChild(root);
> return doc;
> }
> /// <summary>
> /// Creates an xml element node with the specified name and text
> /// </summary>
> /// <param name="doc">associated document</param>
> /// <param name="nodeName">node name to use</param>
> /// <param name="nodeText">node text</param>
> /// <returns></returns>
> private XmlElement XmlTextNode(XmlDocument doc, string nodeName, string
> nodeText)
> {
> XmlElement result = doc.CreateElement(nodeName);
> result.AppendChild(doc.CreateTextNode(nodeText));
> return result;
> }
>
> Ron Allen
> "aaa" <(E-Mail Removed)> wrote in message
> news:%(E-Mail Removed)...
> > Can someone show me a snippet that creates a very simple XML doc with
> > either
> > a root and chilc nodes or root child nodes, and attributes.
> >
> ---- snip-----
>
>