Visual Basic

creating inherited custom control

25-Aug-07 20:35

So you want to *swap* the elements.

So you do this:

dim o as object = array(0)
array(0) = array(array.Length = 1)
array(array.Length - 1) = o

Christian Graus - Microsoft MVP - C++

"I am working on a project that will convert a FORTRAN code to corresponding C++ code.I am not aware of FORTRAN syntax" ( spotted in the C++/CLI forum )

Re: array

WhiteGirl2326-Aug-07 4:02

WhiteGirl23

26-Aug-07 4:02

thanks.
hope will work.

babucherayath25-Aug-07 1:46

babucherayath

25-Aug-07 1:46

Hai
I have inherited datagridview control as custom control and added one textbox control on it. I have added some code in textbox keypress(or keyup,keydown).

The problem is
When i press enter key the event doesn't raises but other keys works.
what is the broblem here? pls explain

Thanks

CLASSES & INHERITENCE

RaveRare24-Aug-07 22:18

RaveRare

24-Aug-07 22:18

Dear every one,

hope you will be in good a health.

dears, i want to know clear scienaro of Classes and inheritence. i have books and material on classes and inheritence but unable to understand clear scene.

please clear me by examples that ..

What is a class
What is a subclass
what is inheritence
what is class functions
what is architecture of a class
why we use classes
how we use classes
is it a good practice to use a class
where classes exists
what are namespaces
mean i want to know every thing round the class that can clear my mind and enable me to speak about these topics in a meeting

thanks

Re: CLASSES & INHERITENCE

Rupesh Kumar Swami24-Aug-07 22:29

Rupesh Kumar Swami

24-Aug-07 22:29

Googling ^

Rupesh Kumar Swami
Software Engineer,
Integrated Solution,
Bikaner (India)

My Company

Re: CLASSES & INHERITENCE

Christian Graus25-Aug-07 0:45

Re: CLASSES & INHERITENCE

25-Aug-07 0:45

You've asked for a book. Why not instead go out and buy one ? If you can't understand the books you have, I don't see how us writing a new one in a forum reply will help. Try working through the books and asking a specific question. Surely you get the basic concept. If you have the materials, and you don't know what a class is, or what inheritance is, then I really don't know how anyone can help you.

Christian Graus - Microsoft MVP - C++

"I am working on a project that will convert a FORTRAN code to corresponding C++ code.I am not aware of FORTRAN syntax" ( spotted in the C++/CLI forum )

DigiOz Multimedia25-Aug-07 12:27

DigiOz Multimedia

25-Aug-07 12:27

I recommend this link:

http://www.startvbdotnet.com/oop/default.aspx[^]

It has some good examples to get you started.

Pete Soheil
DigiOz Multimedia
http://www.digioz.com

Search function in webbrowser

Ahmad Zaidi24-Aug-07 21:29

Ahmad Zaidi

24-Aug-07 21:29

Hi,

I need to make a custom search function in webbrowser control. I found the following post somewhere:
WebBrowser1.Navigate("c:\readme.htm")

Dim htmldom As mshtml.IHTMLDocument2 = CType(WebBrowser1.Document.DomDocument, mshtml.IHTMLDocument2)

htmldom.execCommand("SelectAll", False, Nothing)

htmldom.execCommand("Copy", False, Nothing)

Dim str As String = Clipboard.GetText

Dim range1 As mshtml.IHTMLTxtRange = CType(htmldom.selection.createRange(), mshtml.IHTMLTxtRange)

range1.findText("microsoft", 0, 0)// 0,0 means the first hit, 1,1 second hit like this.....

range1.select()

The problem is that it doesnt seem to select all occurances in the page, e.g. if I search the wikipedia page on Stalin for "stalin", it will move between two instances of the word on the page and not go to the rest. I have replaced the two 0s in the findtext method with a variable counter initially set to zero. Anyone have an idea as to what the problem could be?

Thanks!
Ahmad

Luc Pattyn24-Aug-07 23:53

Luc Pattyn

24-Aug-07 23:53

Ahmad Zaidi wrote:
range1.findText("microsoft", 0, 0)// 0,0 means the first hit, 1,1 second hit like this.....

comment is completely wrong

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Dave Kreskowiak25-Aug-07 7:18

25-Aug-07 7:18

Ahmad Zaidi wrote:
range1.findText("microsoft", 0, 0)// 0,0 means the first hit, 1,1 second hit like this.....

Actually, that's not what those two parameters mean. You still have to provide the string to search for, but the first number is the number of characters into the range to start the search. The second number is a flag specifying:

2   Match whole words only.
4   Match case.

So, your line of code actually means "search for 'microsoft', starting at the beginning of the range, the search term can be inside other words, and can match any change of case.

I'd start by looking at how you're getting the range of text to search and if you're getting everything you expect.

A guide to posting questions on CodeProject[^]

Dave Kreskowiak
Microsoft MVP
Visual Developer - Visual Basic
2006, 2007

Ahmad Zaidi25-Aug-07 10:48

Ahmad Zaidi

25-Aug-07 10:48

Hi Dave,

Thanks alot for the reply. Here is the code I am using:

Public Function findString(ByVal wordToFind As String, ByVal myIndex As Integer) As Integer
Dim htmldom As MSHTML.IHTMLDocument2 = CType(wBrowser.Document.DomDocument, MSHTML.IHTMLDocument2)
htmldom.execCommand("SelectAll", False, Nothing)
htmldom.execCommand("Copy", False, Nothing)

Dim range1 As MSHTML.IHTMLTxtRange = CType(htmldom.selection.createRange(), MSHTML.IHTMLTxtRange)

frmSearch.Hide()
Me.Activate()
range1.findText(wordToFind, myIndex, 0)
range1.select()
range1.collapse()
myIndex += 1

Return myIndex
End Function

myIndex is the counter which as you can see is incremented each time the funciton is called. I was thinking the same thing that you mentioned, that maybe I am not getting the whole page searched, but cant figure out how to do that. Any ideas?

Thanks,
Ahmad

Dave Kreskowiak26-Aug-07 4:19

will IE plugins which are already installed work in shDOCvw.dll 's webbrowser

26-Aug-07 4:19

Ahmad Zaidi wrote:
Dim htmldom As MSHTML.IHTMLDocument2 = CType(wBrowser.Document.DomDocument, MSHTML.IHTMLDocument2)
.
.
.
Dim range1 As MSHTML.IHTMLTxtRange = CType(htmldom.selection.createRange(), MSHTML.IHTMLTxtRange)

So what's the text look like that's being returned by this code? I'm willing to bet it's not what you think.

A guide to posting questions on CodeProject[^]

Dave Kreskowiak
Microsoft MVP
Visual Developer - Visual Basic
2006, 2007

Vivek Narayanan24-Aug-07 21:10

Vivek Narayanan

24-Aug-07 21:10

Say if an addon is already installed , and i use a webbrowser component from either ieframe.dll or shdocvw.dll . Will the plugins work when the app is executed,or do i have to write some code to integrate the plugin?If I have to,whats the code?

Re: will IE plugins which are already installed work in shDOCvw.dll 's webbrowser

Dave Kreskowiak25-Aug-07 6:59

Re: will IE plugins which are already installed work in shDOCvw.dll 's webbrowser

25-Aug-07 6:59

I dont' know for sure, but you'd probably have to write the code to implement IE's entire plugin interface. Don't ask me how to do it. From the little I've researched into this, it's a LOT of work.

A guide to posting questions on CodeProject[^]

Dave Kreskowiak
Microsoft MVP
Visual Developer - Visual Basic
2006, 2007

Ahmad Zaidi25-Aug-07 10:52

Ahmad Zaidi

25-Aug-07 10:52

Well i'm not entirely sure, but I think they will, because if you open a page with flash on it, and have the plugin installed on IE, it works fine in the control as well

VB and SQL Editions

Dreamer200724-Aug-07 20:49

Dreamer2007

24-Aug-07 20:49

I run a VB 6.0 professional on an SQL 2000 Server database. Which edition is better epecially between Standard and Developer for 20 workstations?

Christian Graus24-Aug-07 21:38

24-Aug-07 21:38

VB6 is rubbish, no matter what version. It's obsolete, and unsupported.

I don't see how the number of workstations it runs on makes any difference ?

Christian Graus - Microsoft MVP - C++

"I am working on a project that will convert a FORTRAN code to corresponding C++ code.I am not aware of FORTRAN syntax" ( spotted in the C++/CLI forum )

Dreamer200725-Aug-07 1:13

Dreamer2007

25-Aug-07 1:13

Fine VB6 is rubbish but then which edition of SQL 2000 is the best for a server with over 15 workstations?

Christian Graus25-Aug-07 1:34

25-Aug-07 1:34

Well, it seems obvious that professional is better than standard. The price of standard is cheaper ( still $5000 per processor ). I used google ( you may have heard of it ) and quickly found this site:

http://www.mssqlcity.com/Articles/Compare/sql_server_vs_access.htm[^]

It seems that SS2000's number of users is limited only by available memory. I would guess that standard will be just fine, but if you own both, I don't see why you'd not go with professional.

Christian Graus - Microsoft MVP - C++

"I am working on a project that will convert a FORTRAN code to corresponding C++ code.I am not aware of FORTRAN syntax" ( spotted in the C++/CLI forum )

Dave Kreskowiak25-Aug-07 6:56

Re: Visual Basic Evaluator Problem...VB 2005 express

25-Aug-07 6:56

The Developer edition is exactly that, NOT licensed for production use, but for development only. You have no choice but to go with at least the Standard edition.

A guide to posting questions on CodeProject[^]

Dave Kreskowiak
Microsoft MVP
Visual Developer - Visual Basic
2006, 2007

[Message Deleted]

ncjlee24-Aug-07 20:32

ncjlee

24-Aug-07 20:32

[Message Deleted]

Christian Graus24-Aug-07 21:40