Visual Basic Discussion Boards

PaleyX22-Apr-04 11:59

22-Apr-04 11:59

In the property browser for a multi line textbox the lines property says: String[] Array and can't be edited in place, one has to use the editor. How do I do that for my classes which can be edited in a property browser so that it just says something which can't be changed and the user has to use the provided editor?

Rugby League: The Greatest Game Of All.

Closing a form during create handle

maf66622-Apr-04 9:53

maf666

22-Apr-04 9:53

Hi,
Here's my problem. I want to open a form then check to see if there are any records present in the Access database that i'm connected to. If there are no records I want the form to close. I keep getting something like can't close the form while creating handle. To get over this I used the mouseMove event so that the correct code would be called after the form has loaded. This works but it's not ideal. Has anyone got any better suggestions as to how I do this.

Thanks in advance

Re: Closing a form during create handle

Charlie Williams22-Apr-04 10:39

Charlie Williams

22-Apr-04 10:39

I'm not sure where you're trying to close your form that's causing you to get this error, but the Form class has a HandleCreated event that you can handle and close if needed.

The ideal solution, however, would be to separate your application logic from your UI and show your form only after you've determined it's appropriate.

Charlie

if(!curlies){ return; }

Can events be shared?

PaleyX22-Apr-04 9:47

PaleyX

22-Apr-04 9:47

I have a class that I want everything in it to ne shared, can events be shared? It allows me to write:

public shared event DoSomething()

but how do I subscribe to those events in my code? WithEvents gives an error.

Rugby League: The Greatest Game Of All.

Re: Can events be shared?

Charlie Williams22-Apr-04 10:23

Charlie Williams

22-Apr-04 10:23

WithEvents wouldn't make any sense here because you're not subscribing to an instance event, but rather an event of the class itself.

Use an AddHandler statement to add an event handler for a shared event.

' Note that you're subscribing to an event of MyClass itself,
' not an instance of MyClass
AddHandler MyClass.EventName, AddressOf NameOfMethod

Charlie

if(!curlies){ return; }

Re: Can events be shared?

PaleyX22-Apr-04 11:56

PaleyX

22-Apr-04 11:56

Thanks for that, I wasn't thinking straight Blush | :O

Rugby League: The Greatest Game Of All.

Public Property

XGaMeS22-Apr-04 8:57

XGaMeS

22-Apr-04 8:57

Im trying to access a Public Property in a form with name Principal(mdiParent) from another one (mdiChild) but i can't get acess whats wrong ?

Private _IDTechLOG As Integer

Public Property IDTechLOG() As Integer
Get
Return _IDTechLOG
End Get
Set(ByVal LeID As Integer)
_IDTechLOG = LeID
End Set
End Property

Cool | :cool:

Re: Public Property

Charlie Williams22-Apr-04 10:27

Charlie Williams

22-Apr-04 10:27

XGaMeS wrote:
i can't get acess

What does this mean?

Are you casting the parent form to the correct type? Post the code that's not working to get a more specific answer.

Charlie

if(!curlies){ return; }

Re: Public Property

XGaMeS23-Apr-04 5:10

XGaMeS

23-Apr-04 5:10

I wasn't seeing the property, and yes it was c casting error Cool | :cool:

I am a newbie

VBScript Pseudo-Reflection(?) [modified]

MStanbrook22-Apr-04 8:47

MStanbrook

22-Apr-04 8:47

Is it possible for a VBScript (i.e. test.vbs) to actually know it is called "test.vbs"?

I seem to recall something in VB Using "Application" "object" for finding out that kind of stuff.

~Mike Stanbrook

modified on Saturday, January 22, 2011 10:21 AM

Re: VBScript Pseudo-Reflection(?)

Dave Kreskowiak22-Apr-04 23:44

Dave Kreskowiak

22-Apr-04 23:44

WScript.Echo WScript.ScriptName

RageInTheMachine9532

Re: VBScript Pseudo-Reflection(?)

MStanbrook26-Apr-04 5:20

MStanbrook

26-Apr-04 5:20

Thanks.

~Mike Stanbrook

Re: VBScript Pseudo-Reflection(?)

daluu21-Jan-11 21:09

daluu

21-Jan-11 21:09

Adding a related question to this thread:

Assuming you don't know it (all or at all) after importing VBScript code, or instantiating a COM object, is there any way to get a list of methods (and perhaps properties) of a VBScript class and/or COM object (built from C/C++ or Visual Basic)?

Basically something like .NET reflection for VBScript/COM.

"A good scientist is a person with original ideas. A good engineer is a person who makes a design that works with as few original ideas as possible." - Freeman Dyson

string search in VB.NET

pnpfriend22-Apr-04 8:14

pnpfriend

22-Apr-04 8:14

Hi everybody.. how can I search a string without caring about the case\
eg..

<br />
Dim str as String = "he HE hE He" <br />
Dim r as Integer<br />
Dim c as Integer<br />
while(r<>-1)<br />
 r=str.IndexOf("he",r)<br />
 If (r<>-1) Then<br />
   r+=2 'adding 2 (he has two letters) so it will start looking at position it first found +2<br />
   c+=1<br />
 End If<br />
End While<br />

Instead of c=4, I'm only getting c=1
How to search a string in case insensitive?

Re: string search in VB.NET

Charlie Williams22-Apr-04 8:43

Charlie Williams

22-Apr-04 8:43

r = str.ToLower().IndexOf("he", r)

Charlie

if(!curlies){ return; }

Problem saving Bitmap as Tiff

rye0422-Apr-04 8:02

rye04

22-Apr-04 8:02

I'm having issues writing text to a tiff file. However I have no problems saving text to a Bitmap.

Here is an example of the code that works with Bitmap:

        Dim objBitmap As New Bitmap(600, 600)<br />
        Dim objTextBrush As New TextureBrush(objBitmap)<br />
        Dim objFont As New Font("Verdana", 20, FontStyle.Bold, GraphicsUnit.Pixel, 0)<br />
        Dim objGraphics As Graphics = Graphics.FromImage(objBitmap)<br />
<br />
        objGraphics.DrawString("Test Text", objFont, Brushes.Black, 0, 0)<br />
        objBitmap.Save("test.bmp")

This code works great! But I need to a way to write to tiff.

The code below should work but fails. It returns a black tiff image:

        Dim objBitmap As New Bitmap(600, 600)<br />
        Dim objTextBrush As New TextureBrush(objBitmap)<br />
        Dim objFont As New Font("Verdana", 20, FontStyle.Bold, GraphicsUnit.Pixel, 0)<br />
        Dim objGraphics As Graphics = Graphics.FromImage(objBitmap)<br />
<br />
        objGraphics.DrawString("Test Text", objFont, Brushes.Black, 0, 0)<br />
        objBitmap.Save("test.tiff", ImageFormat.Tiff)

Any help would be greatly appreciated. In return what I would like to do is build a C# class that will save text to an image in different formats and make it available for free. I have tried tools like CoolWatermark, but it has the same issue.

Ryan
ryan@edevers.com

line chart - convert from c# to vb.net

bsh1722-Apr-04 7:46

bsh17

22-Apr-04 7:46

hello,
this link - there is a nice example of line charting , but the code is in c#. I attempted to convert it to vb.net but have some issues.

does anyone have vb.net code sample of line charting - specifically, plotting multiple lines?

http://www.codeproject.com/aspnet/LineGraph.asp

or ifyou email me directly I can share what I have so far, maybe someone can get this to work for me. thanks

(bsharris@optonline.net)

bev

Comparing "Similar" Strings

Todd Davis22-Apr-04 4:31

Todd Davis

22-Apr-04 4:31

I know this is a toughie, but I figured I'd ask...

I am writing an internal application for my company. We have thousands of Articles on our web server in HTML (actually ASP) format. These articles are technical in nature, and support the various software programs we write. This tool is meant to scan the text of those articles, and convert the information into a new format that we'll be storing in a database.

Part of that conversion process will include identifying the product and version that each article is associated with. This is really easy when the product name is spelled correctly and formatted the same as what I'd expect it to be. Unfortunately, people make mistakes (lots and lots of mistakes) and what I expect is rarely what is there. For a silly example, let's say that I'm scanning the text for the word "Microsoft" to see if this article is associated with a Microsoft product. Easy enough, right?

But as I start looking at articles, I see:
Micro Soft
Microssoft
Microsoff
MS
Microsucks
MSoft
..
..

Well, you get the idea. Doing a simple InStr(Article, "Microsoft") doesn't always find what I want. What I need is a more "fuzzy" compare method. Microsoft SQL Server has a function called LIKE that is kind of close to this - better yet, I can use the FreeText or Contains methods to provide a fuzzy search.

Is there a similar function or technique in VB that would allow me to do a compare like this?

-Todd Davis (toddhd@hotmail.com)

Re: Comparing "Similar" Strings

Dave Kreskowiak22-Apr-04 7:09

Dave Kreskowiak

22-Apr-04 7:09

Not unless you write it.

I found a couple of resources on the 'Net about the subject just by searching for 'fuzzy string compare'.

You might want to try converting this[^] Delphi source. You also might want to try working something up using Regular Expressions. I don't have any code, but it's an idea I would look into.

RageInTheMachine9532

Re: Comparing "Similar" Strings

PaleyX22-Apr-04 9:45

PaleyX

22-Apr-04 9:45

There is a good article on this website about it http://www.codeproject.com/string/dmetaphone6.asp[^]

Rugby League: The Greatest Game Of All.

Re: Comparing "Similar" Strings

RichardGrimmer26-Apr-04 4:08

RichardGrimmer

26-Apr-04 4:08

Try doing a SOUNDEX search - when people spell incorrectly, the word usually sounds the same - SOUNDEX creates a numeric value for a string based in its phonetics, so Smithe and Smythe would result in the same SOUNDEX value - believe SQL Server (and definately Oracle - ner!) support it straight out of the box...

"Now I guess I'll sit back and watch people misinterpret what I just said......"
Christian Graus At The Soapbox

Hiding menu

tuningd22-Apr-04 4:29

tuningd

22-Apr-04 4:29

Hello,

Does any one know how to make or where to get information on a menu like the properties menu in VS.net. I want to add the functionally to my program, on how it hides in tell you hover your mouse over the icon that is off to the right side and then it shows it self.

I hope that made sense

Dale Burmeister

control box on form

leezardd22-Apr-04 3:13

leezardd

22-Apr-04 3:13

Does clicking on the close button in the control box on a form raise an event? I would like the code I have for exiting using a menu to be executed if the close on the control box is clicked. Any ideas?

Re: control box on form

Ritesh Sompura22-Apr-04 4:33

Ritesh Sompura

22-Apr-04 4:33

well you can handle this in queryunload event. It gives you an idea from where the unload event has been called.

I think rest is upto your logic. You can call the menu's click function. Or the better way is to create a common function and call it from different events.

Hope that is what you are looking for.

Ritesh.

Why no error - Dim inside a loop

wmccd22-Apr-04 2:58

wmccd

22-Apr-04 2:58

I came across the following bit of code and was wondering why VB does not generate an error. strHTML is dimmed inside a loop that will execute multiple times.

I realise this pretty avaerage coding but wondered why/how VB allowed something like this.

For nCounter = 0 To objCodesLU.Count - 1
...

Dim strHTML As String
If blnSelected Then
strHTML = strHTML + "" + strValue
Else
strHTML = strHTML + "" + strValue
End If
blnSelected = False
Next

William

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