MS Word properties that are read-only in VB.Net but not in VBA

[=?Utf-8?B?QmVuamFtaW5vNQ==?=]

Apologies if this is the wrong forum. I normally post in the Word Programming
group, but this seemed like more of a VB.Net question.

I'm moving code from VBA over to Visual Studio Express 2005 (Visual Basic)
while still learning about VB.Net. (Not a good combination, I know.)

One problem I'm seeing is that certain lines of code that work when run
inside Word fail in a VB.Net app because I'm trying to set a read-only
property. For example, when dealing with the Range object in Word, in the VBA
Editor, you can write this:

dim r as Range
[blah blah blah]
r.Characters.Last= "T"

This should make the last character in the range "r" a capital T. It works
in the VBA Editor with no errors, but in Visual Studio Express, it tells me
"Last is a read-only property."

I tried creating a variable:

dim strTmp as String
strTmp=r.Characters.Last
strTmp="T"

But that doesn't work, because it won't let you assign "Last" to a string.
Any ideas?

Again, I wasn't certain where to put this, but I saw other Microsoft Word
questions here and figured I'd add my own. Thanks in advance!

[=?Utf-8?B?QmVuamFtaW5vNQ==?=]

Solved by the following, but I'm still curious to understand what's really
going on.

Dim rLastChar As Word.Range
rLastChar = r.Characters.Last
rLastChar.Text = "T"

"Benjamino5" wrote:

Apologies if this is the wrong forum. I normally post in the Word Programming
group, but this seemed like more of a VB.Net question.

I'm moving code from VBA over to Visual Studio Express 2005 (Visual Basic)
while still learning about VB.Net. (Not a good combination, I know.)

One problem I'm seeing is that certain lines of code that work when run
inside Word fail in a VB.Net app because I'm trying to set a read-only
property. For example, when dealing with the Range object in Word, in the VBA
Editor, you can write this:

dim r as Range
[blah blah blah]
r.Characters.Last= "T"

This should make the last character in the range "r" a capital T. It works
in the VBA Editor with no errors, but in Visual Studio Express, it tells me
"Last is a read-only property."

I tried creating a variable:

dim strTmp as String
strTmp=r.Characters.Last
strTmp="T"

But that doesn't work, because it won't let you assign "Last" to a string.
Any ideas?

Again, I wasn't certain where to put this, but I saw other Microsoft Word
questions here and figured I'd add my own. Thanks in advance!

[Armin Zingler]

"Benjamino5" <Be********@discussions.microsoft.comschrieb

Apologies if this is the wrong forum. I normally post in the Word
Programming group, but this seemed like more of a VB.Net question.

I'm moving code from VBA over to Visual Studio Express 2005 (Visual
Basic) while still learning about VB.Net. (Not a good combination, I
know.)

One problem I'm seeing is that certain lines of code that work when
run inside Word fail in a VB.Net app because I'm trying to set a
read-only property. For example, when dealing with the Range object
in Word, in the VBA Editor, you can write this:

dim r as Range
[blah blah blah]
r.Characters.Last= "T"

The type of the Last property is Range. "T" is a string. You can not assign
a string to a range property. Maybe you wanted to write

r.Characters.Last.Text = "T"
Armin

[Armin Zingler]

"Benjamino5" <Be********@discussions.microsoft.comschrieb

Solved by the following, but I'm still curious to understand what's
really going on.

Dim rLastChar As Word.Range
rLastChar = r.Characters.Last
rLastChar.Text = "T"

Do you know what Default properties are? "Text" is the default property of
the Range class. In VB.Net, Default properties without arguments are not
supported. You must explicitly refer to the property. It wasn't clear
whether you wanted to assign something to the Last property or to the
Default property of the Last property. In VBA, it's not as strict, which has
the disadvantage that the code is not as clear (as your question shows), and
it has performance drawbacks because it has to find the default property at
runtime, then assign the value or raise an error if there wasn't a Default
property at all. VB.Net eliminates this cause of fault before, at compile
time.
Armin

[=?Utf-8?B?QmVuamFtaW5vNQ==?=]

Armin,

I'd heard vaguely of this issue but hadn't fully understood it. Thanks! I'm
going to spend a lot more time looking into default properties from now on. I
see what you mean about this reducing problems and improving performance.

Ben

"Armin Zingler" wrote:

"Benjamino5" <Be********@discussions.microsoft.comschrieb

Apologies if this is the wrong forum. I normally post in the Word
Programming group, but this seemed like more of a VB.Net question.

I'm moving code from VBA over to Visual Studio Express 2005 (Visual
Basic) while still learning about VB.Net. (Not a good combination, I
know.)

One problem I'm seeing is that certain lines of code that work when
run inside Word fail in a VB.Net app because I'm trying to set a
read-only property. For example, when dealing with the Range object
in Word, in the VBA Editor, you can write this:

dim r as Range
[blah blah blah]
r.Characters.Last= "T"

The type of the Last property is Range. "T" is a string. You can not assign
a string to a range property. Maybe you wanted to write

r.Characters.Last.Text = "T"
Armin