Disappointed with Graphics Speed - Visual Basic Discussion Boards

Alsvha29-Dec-04 4:06

29-Dec-04 4:06

Is there any build-in function of Visual Basic .NET that lets me extract the dates from a GregorianCalender based on a given weeknumber of a given year?

For instance, extracting what dates belong to week 19(as an example) of a given year?

Thanks in advance.
Regards
Alsvha

---------------------------
127.0.0.1 - Sweet 127.0.0.1

how can i use Overture and Adwords in Vb.net

Hammad Umar28-Dec-04 23:23

Hammad Umar

28-Dec-04 23:23

hi guys i have a problem. i want to use overture and adwords search engine in my vb.net . can any body knows from where i can get these search engines web services thanks.
hammad umar

Silent install?

charleslau285528-Dec-04 15:54

charleslau2855

28-Dec-04 15:54

:-Dhai... everyone.. who know how to use the vb.net to perform the silent installation? Confused | :confused:

For this purpose, because i want to perform install s/w program that means can install program at 10 client pc at ths same time. Cool | :cool:

Actually, i want use the install.inf file to perform the silent installation, but i also dont know the command for .inf file. Eek! | :eek:

So,;) everyone who know about this!!! that give me some guideline(web site or coding) to do this..... Roll eyes | :rolleyes:

Thanks you! Rose | [Rose]

How to write and display chemical formula or mathematical formula in VB.NET

bangzozo28-Dec-04 15:32

bangzozo

28-Dec-04 15:32

I have a problem, this is show, display on form or textbox,.. chemical formula and mathematical formula and display it on report.
example:
I want display 10^12 with 12 above 10.
Who can help me?

yessss!!!!

SQL Statement in vb.net

Mekong River28-Dec-04 13:33

Mekong River

28-Dec-04 13:33

Hi, Can anyone help me from here.[^]

A thousand mile of journey, begin with the first step.

APO-CEDC
Save Children Norway-Cambodia Office

Re: SQL Statement in vb.net

Mekong River28-Dec-04 14:53

Mekong River

28-Dec-04 14:53

I could solve it now. Just replace * with %.

A thousand mile of journey, begin with the first step.

APO-CEDC
Save Children Norway-Cambodia Office

How to select a RadioButton?

Matrix100028-Dec-04 13:29

Matrix1000

28-Dec-04 13:29

I'm using vb.net and I have 1 form with a webbrowser control on it, and one button on the form.
I have an html page I'm calling which has 2 radio buttons on it and a textbox.

I can fill in the textbox by going...
AxWebBrowser1.Document.Forms(0)("username").Value = "myusername"

My problem is, I'd like to select a radio button depending on its value...
How could I do that? I'd like to be able to select a radio button based on its value if at all possible....
I found a page on HTML Document Object Modeling here...http://www.w3schools.com/htmldom/dom_obj_radio.asp but cant quite get it figured out. Dead | X|

Thanks for any help! Big Grin | :-D

----------------------------------------------------------------------------
Heres My current code

Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click<br />
   Dim Choice As String<br />
   Choice =  2<br />
<br />
   If Choice = 1 Then<br />
       AxWebBrowser1.Document.forms(0).radiobutton.value(1) = checked<br />
   ElseIf Choice = 2 Then<br />
       AxWebBrowser1.Document.forms(0).radiobutton.value(2) = checked<br />
   End If<br />
End Sub

-------------------------------------------------------------
Here's the body of the page I'm using

<body> <br />
<form name="form1" method="post" action=""> <br />
   <input name="radiobutton" type="radio" value="1"> <br />
    <br> <br />
   <input name="radiobutton" type="radio" value="2"> <br />
    <br><br />
   <input name="username" type="text" id="username"> <br />
</form> <br />
</body>

Disappointed with Graphics Speed

nagajim28-Dec-04 12:05

nagajim

28-Dec-04 12:05

I am writing a routine which will display part of a jpeg image (say 3500x2000 pixels) in a PictureBox (size 1000x700 pixels) and then allow the user to scroll around the image by using the mouse (image scrolls whenever the right mouse button is pressed and the mouse is moved).
I am using Graphics.DrawImage to redraw the scrolled image.

gphpicbox.DrawImage(picturebox1.Image, New Rectangle(0,0, _
picturebox1.Width, _
picturebox1.Height), _
New Rectangle(intrelmoveX, intRelMoveY, _
picturebox1.Width, _
picturebox1.Height), graphicsunit.Pixel)

My problem is it is just so slow and not at all smooth.

Is there anything I can do to improve performance?

Thanks

NagaJim

Re: Disappointed with Graphics Speed

Robert Rohde29-Dec-04 1:26

Robert Rohde

29-Dec-04 1:26

From where does the gphpicbox object come from?
If you draw the image yourself I wouldn't use the picture box control (it is only useful when you let it paint the image itsself). Make your own Control (derive from control or userControl) and override the OnPaint method. Here you can do your drawings (the Graphics object can be retrieved from the eventargs). While the mouse is moving just set the appropriate properties and call YourControl.Invalidate(). That should do it.

Greetings Robert

VB.NET & ADO - Update & Insert Problems

tinomclaren28-Dec-04 12:01

tinomclaren

28-Dec-04 12:01

Hello

I suspect that this is a simple error on my part but this example may help others starting out with ADO.NET.

I'm working on a very basic Database Application. I've included the full project as an attachment in this post.

Its a very basic Form that is the front end for a database containing contact information.

The form has many fields but I've only implemented the first 4 for simplicity.

The form has 4 buttons

1-Find = user enters record ID to bring up the contact information for that record (SQL Select used)
2-New = user can create a new record (SQL Insert used)
3-Save = user saves current record (updated or new- SQL Update or insert used)
4-Delete = Record deleted

I have used an access DB for simplicity but will need to use MySql or MS SQL for end project. Amen.mdb is included with project.

Parts That Work

1-Find Works OK
2-New Works OK until Save

Parts that Don't work

3 - Save - Insert only inserts the first 2 fields in the database! ie name & contact, phone & mobile don't get inserted! -
I don't understand this as the code seems OK
Update doesn't work at all - it causes an unhandled exception in the cmdUpdate part of my code.

The project was written in VS.NET 2003

Any Help greatly appreciated

Tino

--------------------------------------------------------------------------------

zipped up project
www.itsthere2share.com/Amen2.zip

Re: VB.NET & ADO - Update & Insert Problems

Mekong River28-Dec-04 13:46

Mekong River

28-Dec-04 13:46

I try to download your zip file, when it complete I could not open it. The message said that your zip file is not a valid archive. You can send me an e-mail to kanel@scn.online.com.kh or you can post the code of Find record and the code Save record. Because I want to compare what is the difference between the working code and that you code that you have a problem.

A thousand mile of journey, begin with the first step.

APO-CEDC
Save Children Norway-Cambodia Office

Zip and Unzip from VB.Net

CharlotteF28-Dec-04 6:19

CharlotteF

28-Dec-04 6:19

I've seen the C#/J# article to handle this, but does anyone know of a way to do it directly from VB.Net code?

Charlotte

Re: Zip and Unzip from VB.Net

Robert Rohde29-Dec-04 1:32

Robert Rohde

29-Dec-04 1:32

Sure you can. I dont know which article you are exactly referring to but I think you can do it nearly the same way with VB.Net.
With J# many assemblies are bundled together which mimic the behaviour of the Java libraries. These assemblies are normal .Net assemblies and can be used from any of the .Net programming languages.
So if you have J# installed you just have to reference the appropiate libraries in your project and use them as needed.

Re: Zip and Unzip from VB.Net

Dennis C. Dietrich29-Dec-04 9:35

Dennis C. Dietrich

29-Dec-04 9:35

CharlotteF wrote:
I've seen the C#/J# article to handle this, but does anyone know of a way to do it directly from VB.Net code?

What do you mean by directly? Does the library have to be written in VB .NET? If not you can use pretty much any available managed implementation and add either a reference to a compiled assembly to your project or add another project to your existing solution. Either way you will be able to use the classes from the library no matter in which programming language they are/were written. Maybe you should have a look at the #ziplib[^].

Best regards
Dennis

How to Call Visual C++ .NET from Visual Basic .NET

Member 161742528-Dec-04 6:05

Member 1617425

28-Dec-04 6:05

I have what I suspect should be a simple question. I need to know how to call and pass parameters from a Visual Basic .NET program to a Visual C++ .NET program. Any help would be appreciated.
Thanks,

Marek

Re: How to Call Visual C++ .NET from Visual Basic .NET

Colin Angus Mackay28-Dec-04 13:59

Colin Angus Mackay

28-Dec-04 13:59

All you need to do is to reference your Managed C++ assembly in your VB.NET project and call the methods as you would for VB.NET. There isn't anything different that I am aware of. You can Import the namespace(s) used by the Managed C++ to make things easier, but Intellisense should help you out by letting you know what the parameters are.

Do you want to know more?
WDevs.com - Open Source Code Hosting, Blogs, FTP, Mail and Forums

MDI non-child forms

GeneralDisorder28-Dec-04 5:28

GeneralDisorder

28-Dec-04 5:28

Hi everybody,

I've got a program that needs to pop-up a few non-child forms the moment the MDIform loads. So I'd expect to just write a sub which opens a non-child form like this:

Private Sub MakeNonChild()
Dim FormX As Form
FormX = New Form
FormX.Owner = Me
FormX.Show()
End Sub

And then call that function in the Load event of the MDIform.
The strange thing is the form pops up allright, but it's completely disabled and I can't get it enabled in any way.
I then proceeded to make a button on my MDIform which also calls the MakeNonChild method and if I use that, it works perfectly.

Does anyone have any suggestions as to why it goes wrong in the load event?

Thx in advance!

volume and pitch

azam31628-Dec-04 1:47

azam316

28-Dec-04 1:47

i have use microsoft agent for speaking stored files in my project
i am facing problem in setting pitch of the agent and cant find a way to call sndvol32 program to set the volume through my application.

thanx in advance.

☺«««DTA»»»☺

Make graphik with data shape

widhie_prihatna28-Dec-04 1:44

widhie_prihatna

28-Dec-04 1:44

Hi....

i try to make a graphik with data shape, but that i can't make sense is...
why the first data is not loading on the graphik that i made...

for example:
Data is: Data on graphik:
Month Amount Month Amount
JANUARY 2.000.000 FEBRUARY 3.000.000
FEBRUARY 3.000.000 MARCH 3.000.000
MARCH 4.000.000

The code is:
With ADO_Merchant
.ConnectionString = "PROVIDER=MSDataShape;" & _
"Data Provider=Microsoft.Jet.OLEDB.4.0;" & _
"Data Source= " & App.Path & "\DataBase\db_merchant.mdb;"
.RecordSource = "SHAPE {" & _
"SELECT * FROM tbl_Nasabah} AS Parent " & _
"APPEND ({SELECT * FROM tbl_permasalahan} AS ChildMasalah " & _
"RELATE Kd_Nasabah TO Kd_Nasabah) AS ChildMasalah, " & _
"({SELECT * FROM tbl_Pendapatan WHERE Tahun='" & lbl_Tahun.Caption & "'} AS ChildPendapatan " & _
"RELATE Kd_Nasabah TO Kd_Nasabah) AS ChildPendapatan, " & _
"({SELECT * FROM tbl_Merchant} AS ChildMerchant " & _
"RELATE Kd_Nasabah TO Kd_Nasabah) AS ChildMerchant"
.Refresh

Set Grid_Permasalahan.DataSource = .Recordset("ChildMasalah").UnderlyingValue
Set Grid_Pendapatan.DataSource = .Recordset("ChildPendapatan").UnderlyingValue
For i = 0 To 2
Set txt_Merchant(i).DataSource = .Recordset("ChildMerchant").UnderlyingValue
Next
Set Chart_Pendapatan.DataSource = ADO_Merchant.Recordset("ChildPendapatan").UnderlyingValue
End With

pls anyone can show me, where the mistake is..??

:::Widhie:::

touch screen (point-of-sales) user interface

StenH28-Dec-04 1:00

StenH

28-Dec-04 1:00

I’m trying to build a well designed user interface for a point of sales touch screen application. In such an application you don’t use a mouse or keyboard – all the keys are on screen. These keys change based on context and should also be user configurable. What is a good/best practice when storing, loading and displaying such screens/keyboards?

The problems faced should be quite similar in all touch screen applications with the need for a complex user interface.

I’ve searched the internet high and low to find something on this. Books, links or advice anyone? VB.NET is preferred but anything relevant is interesting.

inserting images to imagelist

SelvaRavi28-Dec-04 0:34

SelvaRavi

28-Dec-04 0:34

hi
i want to insert the images(Handles) retrived through loadimage api function from a resource dll which returns only the image handle..
i don't know how to load the image from those handles ...to a imagelist dynamically..through code

any one plz help me....

Thanks

Ravi D'Oh! | :doh:

Import text files

G-Viking27-Dec-04 23:36

G-Viking

27-Dec-04 23:36

I get a text file with data in it, tab delimited.
I then need to add a row in the begining of the file for a numeric field,
how can one edit the file and save the file.

Populating Listview with DB information

kobezt0827-Dec-04 18:36

kobezt08

27-Dec-04 18:36

I looking for the b est way of populating ListView with data selected form Access database which in later time might be need to be use for comparison with data from a text file for integrity, combined and generate a full listview report.

Inaddition, i would also like to fnd out the best way of reading form database (datareader or dataset or....) to do what i said above.

What have been done till now:
- extracting of datat frm text file and populate into listview
- extraction of information from database (but still unable to populate into listview)

hope you guy can help me.

Re: Populating Listview with DB information

Mekong River27-Dec-04 20:24

Mekong River

27-Dec-04 20:24

Try to check the information from here.[^]

A thousand mile of journey, begin with the first step.

APO-CEDC
Save Children Norway-Cambodia Office

[VB.NET] Paint MainMenu

thesleeper27-Dec-04 15:40

thesleeper

27-Dec-04 15:40

Hi everyone, i'm trying to create a custom menu and i have done the menuitems paint but i have no idea how to paint the mainmenu bar cuz it has no events to override.

thanks

here's what i got:

Image

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