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How to: Load a RichTextBox control using stream (non-filestream)

Hello,

I have a RichTextBox control on a VB .NET form. I have successfully translated an XML document into RTF and would like to load it into the RichTextBox control without writing the results of the XSLT translation to a file... Thanks in advance for your help. Here's what I have so far:

Private Sub LoadRichTextBox()
'vars
Dim _XmlDoc As New XmlDocument()
Dim _XslDoc As New System.Xml.Xsl.XslTransform()
Dim _XmlTextWriter As XmlTextWriter
'**Dim _MemoryStream As New MemoryStream()

_XmlDoc.Load("Source.xml")

_XslDoc.Load("xml2rtf.xslt")

'transform to RTF and save it to file.
_XmlTextWriter = New XmlTextWriter("Temp.rtf", System.Text.Encoding.Default)
_XslDoc.Transform(_XmlDoc, Nothing, _XmlTextWriter)
'** _XslDoc.Transform(_XmlDoc, Nothing, _MemoryStream)

'** i would like to use a stream rather than a file here!
txtDsr.LoadFile("Temp.rtf", RichTextBoxStreamType.RichText)
'** txtDsr.LoadFile(_MemoryStream, RichTextBoxStreamType.RichText)

_XmlTextWriter.Close()
'** _MemoryStream.Close()

End Sub

bilpar

ASKER

Hello,

I have made some progress... Uncommenting the _MemoryStream lines of code and adding the following line just before the txtDsr.LoadFile:

_MemoryStream.Seek(0, SeekOrigin.Begin)

yields:

"Invalid file format"

By the way, I meant to rename txtDsr to RichTextBox1 in the example above.

bilpar

ASKER

Hello again,

I did manage to get this working. So I would like to change the question. I have coded several functions using streams but i do not fully understand how these darn things work. So, each time I hunt and guess... until something good happens. I think it best that I fully understand how they work.

The question is now: "Please point me to a good tutorial on working with Streams"

Thanks,

Bil

ASKER CERTIFIED SOLUTION

Scoobyed

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