Visual Basic

30-Oct-06 6:44

This is my first time with VB.NET and XML, so feeling my way through. In VB6, you could get the text of the xml into a string using the dom.xml. Is there an equivalent in .NET using the XmlTextWriter? I am basically building 2 xml documents, then I need to concatenate them in a string. Is the XmlTextWriter the best way to go to build xml?

Thanks

rahvyn630-Oct-06 9:46

30-Oct-06 9:46

I have the above problem figured out. However, my output is odd. Using the following code:

xws = New XmlWriterSettings
xws.Indent = True
xws.CheckCharacters = True
xws.IndentChars = " "
xws.NewLineOnAttributes = True
xws.Encoding = System.Text.Encoding.UTF8
xws.CloseOutput = False
Dim test As New System.Text.StringBuilder

'Create the access request portion
Using xw As XmlWriter = XmlWriter.Create(test, xws)
xw.WriteStartDocument(False)
xw.WriteStartElement("AccessRequest")
xw.WriteAttributeString("xml", "lang", Nothing, "en-US")
xw.WriteElementString("AccessLicenseNumber", "LicNum")
xw.WriteElementString("UserId", "UID")
xw.WriteElementString("Password", "PW")
xw.WriteEndElement()
xw .WriteEndDocument()
xw.Flush()
xw.Close()
End Using

Return test.ToString()

And the output is as follows:

<?xml version="1.0" encoding="utf-16" standalone="no"?>
<AccessRequest
xml:lang="en-US">
<AccessLicenseNumber>LicNum</AccessLicenseNumber>
<UserId>UID</UserId>
<Password>PW</Password>
</AccessRequest>

I set the encoding version in the xmlWriterSettings, so why is it putting in utf-16? Also, I dont understand why there is a line feed between the AccessRequest and its attribute. Is this normal?

Thanks

Oskar.net30-Oct-06 23:54

Oskar.net

30-Oct-06 23:54

Use XMLTextWriter as posted above, but be carefull joining two XML docs, a well-formed xml doc must have a single root. You can create a XMLDataDocument from the XMLTextWriter and using XPath Functions (like selectnodes) you can join the docs easily. Once joined, get xml-string. XPath functions return nodes by using expressions (i.e. Select("\ROOT\SECOND_LEVEL\") returns all nodes under <root><second_level>. With the property InnerText u can access to tag value.

Hope it helps

-----------------
Solo hay 10 tipos de personas, las que saben binario y las que no

rahvyn631-Oct-06 2:48

31-Oct-06 2:48

That helps yes, thank you. But I am still not understanding why I am getting the utf-16 encoding attribute when I tell it to use utf-8.

Oskar.net31-Oct-06 4:01

Oskar.net

31-Oct-06 4:01

I've tried setting the encoding for TextWriters,

Dim test As New System.Text.StringBuilder()
Dim twriter As StringWriter = New StringWriter(test)
'twriter.Encoding = Encoding.UTF8 -- Readonly
Dim twriter2 As TextWriter = twriter
'twriter2.Encoding = Encoding.UTF8 -- Readonly
Dim xmlWriter As XmlWriter = New XmlTextWriter(twriter2)

...no success...

It seems that VB Strings do not allow other than utf-16 encoding (mmmm, strings are stored that way...) for "memory-string-writers"

Using files and encoding "utf-8" OK.

"I dont understand why there is a line feed between the AccessRequest and its attribute. Is this normal?"

take a look to xws.NewLineOnAttributes = True

-----------------
Solo hay 10 tipos de personas, las que saben binario y las que no

rahvyn631-Oct-06 4:26

Printing from a windows form directly to a default printer

31-Oct-06 4:26

"take a look to xws.NewLineOnAttributes = True"

Thanks, that was stupidity on my part. So I'm stuck with utf-16 unless I switch away from a string builder/writer. Thanks for the help.

underb@asd20.org30-Oct-06 5:47

underb@asd20.org

30-Oct-06 5:47

In VB 6.0 they used the Printer.Print command to be able to print directly from the form to the printer. I am trying to do that same thing by using code to print from the form to the default printer directly using VB .Net. Any thoughts?

Underwood

Re: Printing from a windows form directly to a default printer

underb@asd20.org30-Oct-06 11:12

underb@asd20.org

30-Oct-06 11:12

I am trying to print a formatted layout from multiple textboxes to the printer.

Underwood

the Source code of a programe about “ sending message, picture, sound

pham quang dan30-Oct-06 2:37

pham quang dan

30-Oct-06 2:37

I need to have the Source code of a programe about “ sending message, picture, sound, video” through the Lan and wireless”, which is written by VB.net. Please send it to my email: ….. Thanks for your reading and replying

i am pham quang dan

Re: the Source code of a programe about “ sending message, picture, sound

Dave Kreskowiak30-Oct-06 3:57

Re: the Source code of a programe about “ sending message, picture, sound

30-Oct-06 3:57

The only way you're going to get the soruce code for an app like this is if you write it! This isn't Rent-A-Coder. Noone here is goign to write an entire app for you, and certainly not for free.

Dave Kreskowiak
Microsoft MVP - Visual Basic

nlindley730-Oct-06 4:04

nlindley7

30-Oct-06 4:04

Come on Dave. Surely YOU have plenty of time for a volunteer project! Laugh | :laugh:

Nathan Lindley

Re: the Source code of a programe about “ sending message, picture, sound

Dave Kreskowiak30-Oct-06 6:47

How to show only vertical lines(column borders) in listview

30-Oct-06 6:47

Funny you should mention that! I just got notified that I'll be running my ENTIRE site (2 buildings) on generator power only for an entire day. Extension cords running all over the place keeping the network running because the outage will last much longer than the battery power will...

Dave Kreskowiak
Microsoft MVP - Visual Basic

venkatarama30-Oct-06 2:28

venkatarama

30-Oct-06 2:28

Hi All,

I am having one doubt ,is there anyway to draw only vertical lines(not gridlines)
between each column in listview of windows forms.If any one have Idea please guide me how to handle this.

thanks.
Rama

venkat

Re: How to show only vertical lines(column borders) in listview

Dave Kreskowiak30-Oct-06 4:00

30-Oct-06 4:00

The ListView control doesn't support this. There are two ways of doing this. Either finding a control library that has a ListView control that does support what you're looking for, or ownerdrawing the ListView control yourself and supplying the drawing code to draw the entire control.

Dave Kreskowiak
Microsoft MVP - Visual Basic

A DLL Question

<color>Aljechin 30-Oct-06 1:21

<color>Aljechin

30-Oct-06 1:21

Is it possible to create a regular win32 DLL using VB? I do not want a ActiveX/COM dll.

Re: A DLL Question

Reuven Elliassi30-Oct-06 3:46

Reuven Elliassi

30-Oct-06 3:46

No as I know.

In VB6 you can only create ActiveX/COM Dll's.
In VB.NET you can create ActiveX/COM and .NET dll's.

Re: A DLL Question

Reuven Elliassi30-Oct-06 3:50

Reuven Elliassi

30-Oct-06 3:50

But, you can use the dll's you created in VB.NET in other Visual Studio Languages such C#,C++,Java.NET,ASP.NET.
You also may use Dll's you made in the above language in the VB.NET.

This sharing ability build on the CLR(Common Language Resource) of Microsoft that using a helf-native code compiled from the projects and in the CLR runtime compiling it to a native code according to the device CLR setup on (Movile, CE, Microwave, PC, etc.).

Re: A DLL Question

Dave Kreskowiak30-Oct-06 3:55