Mobile

Rafferty Uy10-Oct-08 4:59

Rafferty Uy

10-Oct-08 4:59

haha but is there any site you can recommend? For starters, what language is it in? I did encounter 1 site where I found all the apps in C++, I wonder if I can develop an app in symbian using .Net...

Rafferty

Hurricane300010-Oct-08 5:38

10-Oct-08 5:38

For starters may be is more easy Visual Basic, but C++ is without doubts the better language for performance of applications.
I started with VB and continue with it, but often I desired to know C++.

Give a look here:
http://www.windowsfordevices.com/news/NS5913080420.html
and here:
http://www.allaboutsymbian.com/news/item/6256_NET_on_S60_3rd_Edition_now_a_r.php

May be there are good news for Symbian world.
I understood that now is possible to run Windows Smart Devices application on Symbian platforms, but I not read entire articles.

Rafferty Uy13-Oct-08 15:41

Rafferty Uy

13-Oct-08 15:41

Hi Hurricane,

Thanks for the link! It got me excited. I really hope that it'll support E90 soon... I love developing on the .Net framework, so much that it might "force" me to get a smart phone instead hahaha Smile | :)

Rafferty

Hurricane300014-Oct-08 9:13

14-Oct-08 9:13

My opinion is that is a good idea to have a Windows Mobile based Smart Phone for who want to develop or use some particular application.

How to clean a PictureBox?

Rafferty Uy14-Oct-08 15:40

Rafferty Uy

14-Oct-08 15:40

Maybe you're right, but I like the widescreen of the e90 because I use spreadsheets a lot. For the current smartphones, one would have to set the screen to landscape mode and zoom out to be able to see many columns in one screen.

Oh well... I guess I'll just wait for .net mono to support e90 phones haha Smile | :)

Thanks again.

Rafferty

Drawing in VB2005

flamingo29-Oct-08 1:43

flamingo2

9-Oct-08 1:43

Create a drawing program with the following features:

a. The user has a bounded drawing area (i.e., the user is not drawing directly on the form).
b. The user has three "tools" with which to draw: a line drawing tool, a box drawing tool, and a freehand drawer.

When the line tool is selected, the user clicks on the drawing area and, holding the button down, moves the mouse.
When the button is released, a line is drawn between the point where the button was pressed and the point where it was released. (For all of the drawing tools, you will want to write code for the MouseDown and MouseUp events of your drawing area.)

The box drawing tool works in the same manner as the line drawer, except the two points are considered the corners of a box to be drawn. When the freehand tool is selected, clicking in the drawing area places a point where the mouse pointer is.
As long as the mouse button is held down, the user can move the mouse and lines will be drawn from point to point.
The effect will be that the user is drawing directly with the mouse pointer (like the “Pencil” in the Windows Paint program).

I dont know really how to start, how to include line, rentangle and freedraw control on the form.

Thanks in advance
ZAfar

Hurricane30008-Oct-08 8:23

Re: How to clean a PictureBox?

8-Oct-08 8:23

Hi all,

After a PictureBox has displayed an image, how programmatically to clean it in Compact Framework VB?
In other words, I need the same effect as to clean a TextBox I use:
TextBox.Text = ""
I want PictureBox displays no image.
Thanks

modified on Wednesday, October 8, 2008 2:59 PM

Adam Maras8-Oct-08 9:15

Adam Maras

8-Oct-08 9:15

yourPictureBox.Image = Nothing

Re: How to clean a PictureBox?

Hurricane30008-Oct-08 9:27

Visual Phone Metronome Synched to MP3 Playback

8-Oct-08 9:27

Thanks Adam,

I received your reply in "real time", just while I was working around...
Your line works!

Ignazio

johnmoo7-Oct-08 11:04

johnmoo

7-Oct-08 11:04

Hi, I was wondering if someone here could point me to some resources for accomplishing what I would think would be a fairly simple programming task if I was familiar with the right environments.

I am an experienced Actionscript 2/3 developer myself, so I figure a transition to something like the .NET compact framework in C# should be manageable.

I want to be able to play back MP3s on my phone, but have a screen that pulses with the tempo of the music. Perhaps it would be as simple as taking the tempo information from ID3 tags I could assign and then setting up a loop timer with the corresponding interval. I'm guessing that using a few classes in C# would be the quickest route to success, but I don't know if I would be sacrificing any timing precision by going that route. In any case, I was looking at MSDN to try and get started, but the link to the compact framework tutorials is broken. Sigh | :sigh:

Can anyone send me in the right direction? Thanks in advance. Smile | :)

Re: Visual Phone Metronome Synched to MP3 Playback

Joel Ivory Johnson6-Nov-08 14:47

Joel Ivory Johnson

6-Nov-08 14:47

the tempo information in an mp3 tag cannot be trusted. songs change tempo and the tempo information would have limited precision. the most precist results could be acquired with a fourier transform, but that is going to be computationally expensive.

Joel Ivory Johnson (J2i.net)
Live Messenger

database connectivity

kkbagwe5-Oct-08 21:29

kkbagwe

5-Oct-08 21:29

Hi i am a beginner programmer in windows mobile.
i know C# average.I want to write a simple program in Visual studio 2005 (C#), which produce a form contained 3 levels(name, sal,designation) and 1 submit button ,whenever I m submitting this form the data will be save anywhere in my mobile....
Please help me..

Re: database connectivity

PavanPareta6-Oct-08 20:24

PavanPareta

6-Oct-08 20:24

Hi Kkbagwe,

See this Link[^]

Pavan Pareta

Create Button and his event

~Khatri Mitesh~1-Oct-08 22:14

~Khatri Mitesh~

1-Oct-08 22:14

Hi I want to create button at run time in win mobile using vb.net 2005.
and i want to create event also at run time.
Please suggest. i write the following code...

dim btn as button
 For i As Integer = 0 To 5
            btn = New Button
            btn.Text = sAppointmentTypes(i)
            btn.Tag = sAppointmentTypesIds(i)
            btn.Height = Label1.Height
            btn.Left = Label1.Left
            btn.Width = Label1.Width
            btn.Top = Label1.Top + (Label1.Height * i + 1) + 50
            'AddHandler btn.Click, AddressOf btn.Click
            AddHandler btn.Click, AddressOf Me.ClickButton
            Me.Controls.Add(btn)
        Next

 Private Sub ClickButton(ByVal sender As System.Object, ByVal e As System.EventArgs)
          msgbox sender.text
 End Sub

it shows the error in sender.text.
Please suggest how i do this.
Thanx

~Khatri Mitesh
khatrimitesh@hotmail.com
Bikaner (Rajasthan)
INDIA

Re: Create Button and his event

funklet6-Oct-08 13:31

funklet

6-Oct-08 13:31

Private Sub ClickButotn(ByVal sender as Object, Byval e as EventArgs)
     Dim b as New Button = DirectCast(sender,Button)
     messagebox.show(b.text)
End Sub

Hope this helps.

Change back color of selected dates in Month calender control in vb.net

~Khatri Mitesh~30-Sep-08 21:51

~Khatri Mitesh~

30-Sep-08 21:51

Hii
I want to change the back color of selected dated in month calender.
Like i have appointments on following dates 1-10-2008,5-10-2008,10-10-2008,15-10-2008
so i want to show these date back color is green.
How can i do this.
Please suggest.
Thanx
Mitesh Khatri

~Khatri Mitesh
khatrimitesh@hotmail.com
Bikaner (Rajasthan)
INDIA

ImageList control in Compact Framework.

Hurricane300029-Sep-08 7:03

29-Sep-08 7:03

Hi all!

In a my Compact Framework application that I'm developing using V.S. 2005 and VB, I need to choose a .bmp image file.
If I do this work using the "classic" OpenFileDialog, all is OK and easy, but I desire to choose the file directly from a list of icons instead from the FileName.
What control allow to do it?
ImageList, ListView or ListBox?
I tryed to use both together ImageList and ListView, but I encoutered in its use some limitations respect .Framework possibilities.
The below line produces an error because the property "FromFile" is not present in Compact Framework and then I am not able to assign the string path-filename of image I want add in ImageList1.
I tryed other ways but without success.

ImageList1.Images.Add(Image.FromFile("image-path"))

Thanks for help

funklet4-Oct-08 3:31

funklet

4-Oct-08 3:31

You could try this

Dim b as bitmap = new bitmap("image-path")
imagelist1.images.add(b)
b.Dispose()

If you dim a bitmap you must dispose of it when you have finished.

Hope this helps.

Hurricane30004-Oct-08 6:36

4-Oct-08 6:36

Hi Funklet,

Previously I already tried your suggest, but now I tried again:

Dim Bmp As Bitmap = New Bitmap("\Storage Card\Agip.bmp")
ImageList1.Images.Add(Bmp)
Bmp.Dispose()

When I launck the appl. through simulator, V.S. 2005 stop the running, and return me these series of Error:

1) - In Immediate Window:
A first chance exception of type 'System.IO.FileNotFoundException' occurred in mscorlib.dll
A first chance exception of type 'System.IO.FileNotFoundException' occurred in mscorlib.dll
A first chance exception of type 'System.NullReferenceException' occurred in System.Windows.Forms.dll

2) - In Form2.Designer.vb at row:
Me.ImageList1.Images.Add(CType(resources.GetObject("resource"), System.Drawing.Image)):

System.NullReferenceException was unhandled
Message="NullReferenceException"
StackTrace:
at ImageCollection.Add()
at TrackPlotter.Form2.InitializeComponent()
at TrackPlotter.Form2..ctor()
at System.Reflection.RuntimeConstructorInfo.InternalInvoke()
at System.Reflection.RuntimeConstructorInfo.Invoke()
at System.Reflection.ConstructorInfo.Invoke()
at System.Activator.CreateInstance()
at MyForms.Create__Instance__()
at MyForms.get_Form2()
at TrackPlotter.Form1.Button1_Click()
at System.Windows.Forms.Control.OnClick()
at System.Windows.Forms.Button.OnClick()
at System.Windows.Forms.ButtonBase.WnProc()
at System.Windows.Forms.Control._InternalWnProc()
at Microsoft.AGL.Forms.EVL.EnterMainLoop()
at System.Windows.Forms.Application.Run()
at TrackPlotter.Form1.Main()

And suggest me:

1) Use the "New" Keyword to create an Object Instance.
2) Check to determine if the Object is Null before calling the metod.
3) Get the General Help for this exception.

funklet6-Oct-08 12:15

funklet

6-Oct-08 12:15

I'm not sure how you are including the image in your project but I would use 'Add Existing Item' to add the image to your project and ensure 'Copy Always' or 'Copy If Newer' is in the properties of the file.

Also consider using:

ImageList1.Images.Add(new Bitmap("\Program Files\(Your Project Name)\Agip.bmp))

This way you can eliminate other factors such as a problem with the Storage Card...

You may need to dispose of the Bitmaps when the form is disposed rather than immediately...

Hope this helps.

Hurricane300014-Oct-08 11:22