Visual Basic

Re: How to check if tabpage control data loaded or not in vb.net 2005

9-Aug-10 6:44

Hi, dear all,

I have a form with a tabcontrol which has 7 tabpages, the data for the tabcontrol will be read from database.

When the form is loaded, I only want to fill in data for the default tabpage in tabcontrol, I don't want to fill in data for all tabpages by default until user first time select that tabpage, the logic is right?

I know I can create a flag for each of the tabpage, then when user first time select that tabpage (e.g., tabpage 3), I will check the flag if data is filled in or not, if not, fill in data, set flag to true. next time when user select this page again, don't need to fill in data because data is already there.

But is there professional way to check this?

Thanks a lot!

Eddy Vluggen11-Aug-10 10:19

Eddy Vluggen

11-Aug-10 10:19

Andraw Tang wrote:
When the form is loaded, I only want to fill in data for the default tabpage in tabcontrol, I don't want to fill in data for all tabpages by default until user first time select that tabpage, the logic is right?

Sounds good to me - if you'd load everything on startup, the user would have to wait until all seven pages are finished loading their data. This way, you're shortening the load-time considerably.

Andraw Tang wrote:
will check the flag if data is filled in or not, if not, fill in data, set flag to true

Again, sounds good to me, since you'd only want to check whether it's loaded or not. The simplest approach is often the best.

As an alternative; I'm moving to a nullable DateTime, setting it to the DateTime of the last load-moment. A few triggers on the database that keep track of the DateTime of the last change, and it's possible to see if "something" might have changed in the database.

I are Troll Suspicious | :suss:

Re: How to check if tabpage control data loaded or not in vb.net 2005

Andraw Tang11-Aug-10 11:49

Re: How to check if tabpage control data loaded or not in vb.net 2005

11-Aug-10 11:49

Eddy,

Thank you for your detailed explaination.

I agree with you, the simplest way is best, since there is no existing method in vb.net to check tabpage load, I'd better use flag to indicate it.

Eddy Vluggen11-Aug-10 20:39

Eddy Vluggen

11-Aug-10 20:39

You're welcome Smile | :)

Grabbing file name and path info for a bootstrapper application

normschaef9-Aug-10 6:12

normschaef

9-Aug-10 6:12

All:

I'd like to write a small boot program for my main app which needs a few file properties to load additional files.

What I'd like is for the boot program to get the same info as if you were to right-click on the file and select properties in Windows Explorer.
1) The filename in the properties textbox
2) The location (filepath)
3) File modified date

I can get the filepath from using the Environment.CurrentDirectory variables, but I haven't been able to figure out how to get the filename or date. Seems like it should be something simple.

What am I overlooking?

TIA for any help.
Norm

FileInfo

David Mujica9-Aug-10 6:27

David Mujica

9-Aug-10 6:27

I believe what you are looking for can be found in fileInfo.

Dim fi As System.IO.FileInfo

fi = New System.IO.FileInfo("<put your executable path and file name here>")

fi.LastAccessTime

See if that work for you.

david

return executable setup file path

mehrnoosh8-Aug-10 20:22

mehrnoosh

8-Aug-10 20:22

hi friends
i create a setup program that install my app
and i want instal msde in my setup file
i write a function that run "msde2000\setup.exe" file with process.start() instruction

i located the MSDE2000 folder in my app debug path

but when i run the setup file in this line it has a error :

objProcess = New System.Diagnostics.Process()
objProcess.StartInfo.FileName = Application.StartupPath & "\MSDE2000\setup.exe"

error is can not find setup.exe in c:\windows\system32

why c:\windows\system32????!!!!

and when i changed Application.StartupPath to Application.ExecutablePath
it returns path c:\windows\system32\msiexec.exe !!!!

why???!!!!!!! Confused | :confused:

M.Alizadeh

Goutam Patra8-Aug-10 21:02

Goutam Patra

8-Aug-10 21:02

Try Application.ExecutablePath

mehrnoosh8-Aug-10 21:09

mehrnoosh

8-Aug-10 21:09

thanks for your reply, but did you read my post???!!!
i tried it and it returnd path c:\windows\system32\msiexec.exe !!!!

M.Alizadeh

Goutam Patra8-Aug-10 21:30

Goutam Patra

8-Aug-10 21:30

Are you running a MSI package of your application? Thats why it's showing c:\windows\system32\msiexec.exe

How to get real MAC address

mehrnoosh8-Aug-10 22:05

mehrnoosh

8-Aug-10 22:05

ok. then what should i do??? that means when i use a msi package always it return c:\windows\system32...???

i also test this way:

In the CustomActionData property of the Custom Action, type:

/DIR="[TARGETDIR]\"

Then in Installer class, add this code:

Dim path As String = Context.Parameters("DIR")

but when run setup.exe file it return a null string...

M.Alizadeh

ivo758-Aug-10 2:35

ivo75

8-Aug-10 2:35

Hi I use this code to get MAC address in network adapter, when I clone this MAC adress give me cloning MAC. I want to get real (fabric) MAC address.

Imports System.Management
Public Class Form1

Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click
Dim mc As New ManagementClass("Win32_NetworkAdapterConfiguration")
Dim moc As ManagementObjectCollection = mc.GetInstances()

Dim MACAddress As String = [String].Empty

For Each mo As ManagementObject In moc
If MACAddress = [String].Empty Then
' only return MAC Address from first card
If CBool(mo("IPEnabled")) = True Then
MACAddress = mo("MacAddress").ToString()
End If
End If
mo.Dispose()
Next
MsgBox(MACAddress)
MACAddress = MACAddress.Replace(":", "")
' Then youc an set anything to MACAddress
MsgBox(MACAddress)
End Sub
End Class

Re: How to get real MAC address

LloydA1118-Aug-10 11:33

LloydA111

8-Aug-10 11:33

ivo75 wrote:
Hi I use this code to get MAC address in network adapter, when I clone this MAC adress give me cloning MAC. I want to get real (fabric) MAC address.

I'm sorry, but I really don't understand what you mean.

▬▬▬▬▬▬▬▬▬▬▬▬

How do we program Live chat?

Syed Wayez Ahmed6-Aug-10 20:44

6-Aug-10 20:44

can you please give me an idea how can i implement live chat in my website? I want to know idea behind how to implement live chat Programtically. Am not looking for any gadgets or so, am looking for logic how do we in Vb.net Wink | ;)

?

Any suggestion will be most appreciated. Rose | [Rose]

Wayez

http://wayezquotes.blogspot.com

Richard MacCutchan6-Aug-10 21:54

Richard MacCutchan

6-Aug-10 21:54

Syed Wayez Ahmed wrote:
Any suggestion will be most appreciated.

Look at the CodeProject articles here[^], search Google for "live chat".

It's time for a new signature.

Syed Wayez Ahmed6-Aug-10 22:07

6-Aug-10 22:07

Thank You for your suggestion, I dnt know what is google before. You have given me a valuable suggestion. Mad | :mad:

Abhinav S6-Aug-10 22:38

Abhinav S

6-Aug-10 22:38

Syed Wayez Ahmed wrote:
Thank You for your suggestion, I dnt know what is google before. You have given me a valuable suggestion

There is no point your being sarcastic here.

It's ok that you knew about Google.
But did you do a search on it before posting this question here?

The funniest thing about this particular signature is that by the time you realise it doesn't say anything it's too late to stop reading it.

My latest tip/trick - Silverlight *.XCP files.

Visit the Hindi forum here.

Richard MacCutchan6-Aug-10 23:14

Richard MacCutchan

6-Aug-10 23:14

Did you check the CodeProject articles? Your question is one of the most common posted on this website: at least once every week. And always by people who appear too lazy to do some simple simple research for themselves.

It's time for a new signature.

Syed Wayez Ahmed6-Aug-10 23:48

6-Aug-10 23:48

Hi Richard!
Thnx for your replies. It seems u r angry now, being angry whn made to is quality of definately Male.
I did research and found many articles which point me to use activex which i dnt want to. and i want an ajax and saved chat can you suggest me for the same? Roll eyes | :rolleyes:

Richard MacCutchan6-Aug-10 23:53

Richard MacCutchan

6-Aug-10 23:53

Syed Wayez Ahmed wrote:
It seems u r angry now, being angry whn made to is quality of definately Male.

I apologise if I misunderstood your previous message. However your use of 'txtspk' rather than proper spelling makes it difficult to understand what you are saying.

Syed Wayez Ahmed wrote:
and i want an ajax and saved chat can you suggest me for the same? Roll eyes

Same answer as before, look at the articles and search Google, this is such a common question there are many answers to be found. Select the one that best suits your knowledge and experience.

It's time for a new signature.

Syed Wayez Ahmed7-Aug-10 1:17

TreeNode Add/Remove/Disable issue in vb.net 2005

7-Aug-10 1:17

Hey Richard!
Thanx Again. Am on it(Looking for the articles in google), but if any article in your view is best, let me know Wink | ;)

Andraw Tang5-Aug-10 11:12

Re: TreeNode Add/Remove/Disable issue in vb.net 2005

5-Aug-10 11:12

Hi, dear all,

I create a MDIContainer form (called form1) which has a TreeView on the left side, the treeview looks like and is designed at design mode:

+ Input Data
Primary Data
+ Object Data
Object 1
Object 2
Object 3

The Object number is 2 or 3, so by default I create 3 nodes, one for each object, my problems are:

1: Based on user selection about object number (2 or 3), I will decided remove (or disable or hide) Object 3 treenode, if user change the value to 3, I will add (or enable or show) this node. But I didn't find any information about disable treenode, can I disable treenode? If I use remove node, when I decide to add it back later, how can I make sure it is added at the same locatin in treeview?

2: if the user selection is stored in DB, then next time when he open the form, the object node number should be same as user selected object number, but from where I should initialize the treeview? Since the treeview is in form1 (MDI container), I thought I can do it at form1_Load() subroutine, but when I check the treenode count in it (using TreeView1.Nodes.Count),but I got value 1 instead of 6, why???

Thanks!

Andraw Tang5-Aug-10 12:08