ERROR saving Grid as XML

[Filippo Pandiani]

SCENARIO
=======================================
I have a Grid and I want to save the values on an XML.
Let me say that I am NOT using DataSet to load valus on my grid.

PROBLEM
=======================================
When I am saving a Grid to XML I get the following exception:
"Token StartElement in state Epilog would result in an invalid XML
document"
SOURCE CODE
=======================================
myXmlTextWriter = new XmlTextWriter (aFileName, null);

myXmlTextWriter.Formatting = Formatting.Indented;
myXmlTextWriter.WriteStartDocument();

myXmlTextWriter.WriteStartElement("MyRoot");

for (int i=0; i<this.MyDataGrid.Rows.Count; i++)
{
myXmlTextWriter.WriteStartElement("MyTag");

for (int x=0; x<this.MyDataGrid.Columns.Count; x++)
{

myXmlTextWriter.WriteElementString(this.MyDataGrid .Columns[x].HeaderText.Tri
m(), this.MyDataGrid.Rows[i].Cells[x].Text);
}

myXmlTextWriter.WriteEndElement();
myXmlTextWriter.Flush();
}

myXmlTextWriter.WriteEndElement();

myXmlTextWriter.Flush();
myXmlTextWriter.Close();
=======================================

Anybody sees anything wrong ??
Thanks,
Filippo.

[Filippo Pandiani]

It seems that I cannot repeat the call
myXmlTextWriter.WriteStartElement("MyTag");
more than once.

So if that is the problem, how can I write an XML as:
<MyRoot>
<MyTag>
<bubu>111</bubu>
<baba>222</baba>
</MyTag>

<MyTag>
<bubu>333</bubu>
<baba>444</baba>
</MyTag>

<MyTag>
<bubu>555</bubu>
<baba>666</baba>
</MyTag>
</MyRoot>

......with multiple "MyTag" tags?

I am currently using an XmlTextWriter, could be this the problem?

Thanks,
Filippo.


"Filippo Pandiani" <pa********@hotmail.com> wrote in message
news:%2****************@TK2MSFTNGP10.phx.gbl...

SCENARIO
=======================================
I have a Grid and I want to save the values on an XML.
Let me say that I am NOT using DataSet to load valus on my grid.

PROBLEM
=======================================
When I am saving a Grid to XML I get the following exception:
"Token StartElement in state Epilog would result in an invalid XML
document"
SOURCE CODE
=======================================
myXmlTextWriter = new XmlTextWriter (aFileName, null);

myXmlTextWriter.Formatting = Formatting.Indented;
myXmlTextWriter.WriteStartDocument();

myXmlTextWriter.WriteStartElement("MyRoot");

for (int i=0; i<this.MyDataGrid.Rows.Count; i++)
{
myXmlTextWriter.WriteStartElement("MyTag");

for (int x=0; x<this.MyDataGrid.Columns.Count; x++)
{

myXmlTextWriter.WriteElementString(this.MyDataGrid .Columns[x].HeaderText.Tri m(), this.MyDataGrid.Rows[i].Cells[x].Text);
}

myXmlTextWriter.WriteEndElement();
myXmlTextWriter.Flush();
}

myXmlTextWriter.WriteEndElement();

myXmlTextWriter.Flush();
myXmlTextWriter.Close();
=======================================

Anybody sees anything wrong ??
Thanks,
Filippo.

[Christoph Schittko [MVP]]

That can't be it ... the error message states that your writer is in the
epilog state, i.e. the document is written and you're trying to write a 2nd
root element. Are you re-using the XmlTextWriter after you already wrote a
complete document ? It doesn't look like that in the sample code you posted
though.

Check why your writer thinks you already closed all open elements, including
the root element.

--
HTH
Christoph Schittko [MVP]
Software Architect, .NET Mentor

"Filippo Pandiani" <pa********@hotmail.com> wrote in message
news:uo**************@TK2MSFTNGP11.phx.gbl...

It seems that I cannot repeat the call
myXmlTextWriter.WriteStartElement("MyTag");
more than once.

So if that is the problem, how can I write an XML as:
<MyRoot>
<MyTag>
<bubu>111</bubu>
<baba>222</baba>
</MyTag>

<MyTag>
<bubu>333</bubu>
<baba>444</baba>
</MyTag>

<MyTag>
<bubu>555</bubu>
<baba>666</baba>
</MyTag>
</MyRoot>

.....with multiple "MyTag" tags?

I am currently using an XmlTextWriter, could be this the problem?

Thanks,
Filippo.


"Filippo Pandiani" <pa********@hotmail.com> wrote in message
news:%2****************@TK2MSFTNGP10.phx.gbl...

SCENARIO
=======================================
I have a Grid and I want to save the values on an XML.
Let me say that I am NOT using DataSet to load valus on my grid.

PROBLEM
=======================================
When I am saving a Grid to XML I get the following exception:
"Token StartElement in state Epilog would result in an invalid XML
document"
SOURCE CODE
=======================================
myXmlTextWriter = new XmlTextWriter (aFileName, null);

myXmlTextWriter.Formatting = Formatting.Indented;
myXmlTextWriter.WriteStartDocument();

myXmlTextWriter.WriteStartElement("MyRoot");

for (int i=0; i<this.MyDataGrid.Rows.Count; i++)
{
myXmlTextWriter.WriteStartElement("MyTag");

for (int x=0; x<this.MyDataGrid.Columns.Count; x++)
{

myXmlTextWriter.WriteElementString(this.MyDataGrid .Columns[x].HeaderText.Tri

m(), this.MyDataGrid.Rows[i].Cells[x].Text);
}

myXmlTextWriter.WriteEndElement();
myXmlTextWriter.Flush();
}

myXmlTextWriter.WriteEndElement();

myXmlTextWriter.Flush();
myXmlTextWriter.Close();
=======================================

Anybody sees anything wrong ??
Thanks,
Filippo.

[Filippo Pandiani]

You are right,
I have found the reason why the error was occurring and it was my mistake.

I had an IF statement when I was creating the <MyRoot> node and for one
specific file, the IF statement was not creating the Root. ..something like:
=====================================
if (filetype !=1)
myXmlTextWriter.WriteStartElement("MyRoot");
=====================================

Therefore on that specific scenario, I was setting the repeated node "MyTag"
at the root level,
therefore attempting to create an XML as:

<MyTag>
<bubu>111</bubu>
<baba>222</baba>
</MyTag>
<MyTag>
<bubu>333</bubu>
<baba>444</baba>
</MyTag>
<MyTag>
<bubu>555</bubu>
<baba>666</baba>
</MyTag>
....which is invalid cause it has un undefined number of Root nodes called
"MyTag".

My mistake ...or let's call it my BUG !!!

Filippo.


"Christoph Schittko [MVP]" <ch********************@austin.rr.com> wrote in
message news:uQ**************@TK2MSFTNGP12.phx.gbl...

That can't be it ... the error message states that your writer is in the
epilog state, i.e. the document is written and you're trying to write a 2nd root element. Are you re-using the XmlTextWriter after you already wrote a
complete document ? It doesn't look like that in the sample code you posted though.

Check why your writer thinks you already closed all open elements, including the root element.

--
HTH
Christoph Schittko [MVP]
Software Architect, .NET Mentor

"Filippo Pandiani" <pa********@hotmail.com> wrote in message
news:uo**************@TK2MSFTNGP11.phx.gbl...

It seems that I cannot repeat the call
myXmlTextWriter.WriteStartElement("MyTag");
more than once.

So if that is the problem, how can I write an XML as:
<MyRoot>
<MyTag>
<bubu>111</bubu>
<baba>222</baba>
</MyTag>

<MyTag>
<bubu>333</bubu>
<baba>444</baba>
</MyTag>

<MyTag>
<bubu>555</bubu>
<baba>666</baba>
</MyTag>
</MyRoot>

.....with multiple "MyTag" tags?

I am currently using an XmlTextWriter, could be this the problem?

Thanks,
Filippo.


"Filippo Pandiani" <pa********@hotmail.com> wrote in message
news:%2****************@TK2MSFTNGP10.phx.gbl...

SCENARIO
=======================================
I have a Grid and I want to save the values on an XML.
Let me say that I am NOT using DataSet to load valus on my grid.

PROBLEM
=======================================
When I am saving a Grid to XML I get the following exception:
"Token StartElement in state Epilog would result in an invalid XML
document"
SOURCE CODE
=======================================
myXmlTextWriter = new XmlTextWriter (aFileName, null);

myXmlTextWriter.Formatting = Formatting.Indented;
myXmlTextWriter.WriteStartDocument();

myXmlTextWriter.WriteStartElement("MyRoot");

for (int i=0; i<this.MyDataGrid.Rows.Count; i++)
{
myXmlTextWriter.WriteStartElement("MyTag");

for (int x=0; x<this.MyDataGrid.Columns.Count; x++)
{

myXmlTextWriter.WriteElementString(this.MyDataGrid .Columns[x].HeaderText.Tri

m(), this.MyDataGrid.Rows[i].Cells[x].Text);
}

myXmlTextWriter.WriteEndElement();
myXmlTextWriter.Flush();
}

myXmlTextWriter.WriteEndElement();

myXmlTextWriter.Flush();
myXmlTextWriter.Close();
=======================================

Anybody sees anything wrong ??
Thanks,
Filippo.

[Christoph Schittko [MVP]]

I'm glad I could help
Have a good weekend,

Christoph Schittko [MVP]
Software Architect, .NET Mentor

"Filippo Pandiani" <pa********@hotmail.com> wrote in message
news:OX**************@TK2MSFTNGP12.phx.gbl...

You are right,
I have found the reason why the error was occurring and it was my mistake.

I had an IF statement when I was creating the <MyRoot> node and for one
specific file, the IF statement was not creating the Root. ..something like: =====================================
if (filetype !=1)
myXmlTextWriter.WriteStartElement("MyRoot");
=====================================

Therefore on that specific scenario, I was setting the repeated node "MyTag" at the root level,
therefore attempting to create an XML as:

<MyTag>
<bubu>111</bubu>
<baba>222</baba>
</MyTag>
<MyTag>
<bubu>333</bubu>
<baba>444</baba>
</MyTag>
<MyTag>
<bubu>555</bubu>
<baba>666</baba>
</MyTag>
...which is invalid cause it has un undefined number of Root nodes called
"MyTag".

My mistake ...or let's call it my BUG !!!

Filippo.


"Christoph Schittko [MVP]" <ch********************@austin.rr.com> wrote in
message news:uQ**************@TK2MSFTNGP12.phx.gbl...

That can't be it ... the error message states that your writer is in the
epilog state, i.e. the document is written and you're trying to write a

2nd

root element. Are you re-using the XmlTextWriter after you already wrote a

complete document ? It doesn't look like that in the sample code you

posted

though.

Check why your writer thinks you already closed all open elements,

including

the root element.

--
HTH
Christoph Schittko [MVP]
Software Architect, .NET Mentor

"Filippo Pandiani" <pa********@hotmail.com> wrote in message
news:uo**************@TK2MSFTNGP11.phx.gbl...

It seems that I cannot repeat the call
myXmlTextWriter.WriteStartElement("MyTag");
more than once.

So if that is the problem, how can I write an XML as:
<MyRoot>
<MyTag>
<bubu>111</bubu>
<baba>222</baba>
</MyTag>

<MyTag>
<bubu>333</bubu>
<baba>444</baba>
</MyTag>

<MyTag>
<bubu>555</bubu>
<baba>666</baba>
</MyTag>
</MyRoot>

.....with multiple "MyTag" tags?

I am currently using an XmlTextWriter, could be this the problem?

Thanks,
Filippo.


"Filippo Pandiani" <pa********@hotmail.com> wrote in message
news:%2****************@TK2MSFTNGP10.phx.gbl...
> SCENARIO
> =======================================
> I have a Grid and I want to save the values on an XML.
> Let me say that I am NOT using DataSet to load valus on my grid.
>
> PROBLEM
> =======================================
> When I am saving a Grid to XML I get the following exception:
> "Token StartElement in state Epilog would result in an invalid XML > document"
>
>
> SOURCE CODE
> =======================================
> myXmlTextWriter = new XmlTextWriter (aFileName, null);
>
> myXmlTextWriter.Formatting = Formatting.Indented;
> myXmlTextWriter.WriteStartDocument();
>
> myXmlTextWriter.WriteStartElement("MyRoot");
>
> for (int i=0; i<this.MyDataGrid.Rows.Count; i++)
> {
> myXmlTextWriter.WriteStartElement("MyTag");
>
> for (int x=0; x<this.MyDataGrid.Columns.Count; x++)
> {
>
>

myXmlTextWriter.WriteElementString(this.MyDataGrid .Columns[x].HeaderText.Tri

> m(), this.MyDataGrid.Rows[i].Cells[x].Text);
> }
>
> myXmlTextWriter.WriteEndElement();
> myXmlTextWriter.Flush();
> }
>
> myXmlTextWriter.WriteEndElement();
>
> myXmlTextWriter.Flush();
> myXmlTextWriter.Close();
> =======================================
>
> Anybody sees anything wrong ??
>
>
> Thanks,
> Filippo.
>
>
>
>