Visual Basic

9-Aug-04 5:37

The procedure would depend heavily on the type of Winsock Proxy support your proxy server supports, if its enabled at all (not likely!). You would have to send a formatted connection request to the proxy server (again, depends on the type of Winsock Proxy supported), and negotiate the connection with the proxy. Usernames and passwords may be required, so you'll have to deal with that also. Again, this will depend HEAVILY on the proxy server and you should consult the documentation on the server to find out what it's requirements are.

RageInTheMachine9532
"...a pungent, ghastly, stinky piece of cheese!" -- The Roaming Gnome

VB.NET / FTP / PGP

Member 7339436-Aug-04 14:48

Member 733943

6-Aug-04 14:48

Hi guys,

I have my own class for uploading files via FTP. The file that I need to upload MUST BE encrypted due to security reasons. Does anybody know how to incorporate PGP in vb.net or does anybody knows how to use PGP with VB.NET?

Thanks alot

Re: VB.NET / FTP / PGP

progload8-Aug-04 17:55

progload

8-Aug-04 17:55

check this, it's in C# but i'm sure it can be converted to vb.net or give you an idea at least.

http://www.codeproject.com/csharp/gnupgdotnet.asp

Context Menu's

skytribe6-Aug-04 14:28

skytribe

6-Aug-04 14:28

I'm having a problem in how to implement context menu's

I have a main form that has a 2 listviews on it and a set of radio buttons.

the 2 radio buttons effect the contents of one of the listviews.

Depending upon the listview selected (and its contents in the case of the first listview) I want to create context menu's

I can create context based upon which listview called it but dont seem to be able to reference back to determine which radio button is set OR add a value to the function in the addhandler item when adding the event handler to the context menu item.

Any ideas on ways to implement this would be greatly appreciated. Basically want to make a framework where I can say create a context menu for a specific type - so that if that listview is used on different forms can simply call the CreateContextMenu Function which will create the menu with appropriate hookups to the procedures.

gthompson20057-Aug-04 14:43

gthompson2005

7-Aug-04 14:43

I'm assuming that since the values change based on what radion button is selected, and that you want to display a different context menu based on what is selected.

I'd suggest creatting 2 different context menu's in design view, then when a radio button is selected, change the listview.contextmenu property to the respective context menu.

Anonymous8-Aug-04 1:10

8-Aug-04 1:10

That may work in this instance - but the concept is that I want something that is generic enough that I can re-use anywhere in app. Having to create many context menu's of different forms is not really what I want to occur.

So What I'd like is that I can Call a routine CreateContextMenu(byval MenuType as integer)

which would create a Context Menu for a specific type of Menu (Say Business Code, Order, Invoice etc.)

This adds Standard menu item such as "Open", "New" etc. which at the moment are calling functions called OpenFunctions and NewFunctions. which determine the actual real function to be called such as OpenOrder, OpenBusinessCode etc.

Determining which specific function to be called is handled by looking at a application level property which changes depending upon the listview currently selected.

Ultimately what I'm trying to do is pass a parameter into the OpenFunctions and NewFunctions procedures which are used to determine the specifc type of menu to create.

But that would involve when setting up menuItems making the AddressOf clause pointing to the function accept a paramater

So Ideally I'd like to do something like

Sub OpenFunctions(byval iType as integer)
Dim conMenu As New ContextMenu
Dim menuItem1 As New MenuItem

IF iType <> 0 then
menuItem1.Text = "&test"
conMenu.MenuItems.Add(menuItem1)
AddHandler menuItem1.Click, AddressOf OpenFunctions(iType)
else
throw new exception ("Invalid Type!!!")
end if

End Sub

But cant seem to get the following line .... to work
AddHandler menuItem1.Click, AddressOf OpenFunctions(iType)

I think this is the key - being able to pass the addressof a function with parameters.

gthompson20058-Aug-04 5:40

gthompson2005

8-Aug-04 5:40

Ok did some testing Here is what I'm going to suggest.

Since you are wanting to reuse the creation of these contextmenu's throughout your program, What I did, is create a class library within your project, create your function to create the contextmenu, and return the context menu. Here is what my class looks like

Imports System.Windows.Forms

Public Class Class1
Public Function createmenu()
Dim conMenu As New ContextMenu
Dim menuItem1 As New MenuItem
menuItem1.Text = "&test"
conMenu.MenuItems.Add(menuItem1)
AddHandler menuItem1.Click, AddressOf opentest

Return conMenu

End Function
Public Sub opentest(ByVal sender As Object, ByVal e As System.EventArgs)

MsgBox("Test for opentest worked")

End Sub

End Class

Make sure, on your Forms, you set reference for this class library,

My Form code looks as follows

Imports testing_contextmenu.Class1

Private Sub Form1_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load
Dim conmenu2 As New ContextMenu
Dim testing As New testing_contextmenu.Class1

conmenu2 = testing.createmenu()

ListView1.ContextMenu = conmenu2

End Sub

So I believe the easiest solution would be to create the class library, create your functions to create your menu's, and returrn those as I have done, Hope this helps, or gets ya in the direction you want.

Anonymous9-Aug-04 2:16

Designing custom GUI's using VB.net

9-Aug-04 2:16

Thanks for the idea - but heres the problem....

Lets say the function OpenTest that your calling, Is as a result of a right click on a listview.

From a listview I need to be able to pass a parameter of which Item I want to open. Which is the listview item ID column. The Sender and e values are that of the menuitem1 and not of those of the listview that was right clicked....

So in this case I need the menu that is not generic enough that I can either pass a reference to a listview or have a parameter passed to tell it what item to Open.

Simply displaying a messagebox when value is clicked is not enough.

So possibly its trying to pass a value into createcontextmenu function and pass this through to the Opentest - but the signature then doesnt match and the line

AddHandler menuItem1.Click, AddressOf opentest

will not work.

Anonymous6-Aug-04 11:33

6-Aug-04 11:33

Would anybody have any information on a website which specifically focuses on designing custom GUI's using VB.net. Something that would teach you how to make a GUI which looks more like a real life object instead of a windows form. This would be for a windows desktop application by the way.

Thanks in advance...

help

bassemhoussam6-Aug-04 10:59

bassemhoussam

6-Aug-04 10:59

hi i need help in fix som errors in icon project
if anyone can help please send email to me at
houssam@mail2alpha.com
Thanks

Re: help

Dave Kreskowiak7-Aug-04 6:29

7-Aug-04 6:29

What is your problem? Noone is going to send you an email asking the very same question...

RageInTheMachine9532
"...a pungent, ghastly, stinky piece of cheese!" -- The Roaming Gnome

MSchart in VB.net

megadith6-Aug-04 10:37

megadith

6-Aug-04 10:37

I am using MSChart in VB.net to show a graph in real time. I'm graphing temperatures taken every second or 1/4 second. The problem i'm having is that i want to graph it for more than 15 minutes. that means thousands of data points. The way i'm doing it now, setting the rowcount to the time i need, takes about 5 mins to load. Is there any other way to load this quicker? here is the code i'm using now that takes so long:

AxMSChart1.RowCount = totalReads

thanks for your help!

megadith

Re: MSchart in VB.net

Dave Kreskowiak7-Aug-04 6:28

7-Aug-04 6:28

No, there isn't. MSChart has to revealutate every single point in the data set to get the correct scale of the graph. Like you said, there are thousands of data points, so it's going to take a long time to get through them. The MSChart object was not written to handle real-time graphs. If this is your goal you'll have to look into a 3rd party control written to handle real-time graphing on a large dataset like this.

RageInTheMachine9532
"...a pungent, ghastly, stinky piece of cheese!" -- The Roaming Gnome

Re: MSchart in VB.net

megadith10-Aug-04 8:41

megadith

10-Aug-04 8:41

shoot! thats what i was afraid of.
Thanks Dave, i appreicate it.
Do you know of any good 3rd party control off hand? thanks!!!

Megadith

Simple Grid in VB.NET

Anonymous6-Aug-04 9:55

Re: Simple Grid in VB.NET

6-Aug-04 9:55

I am just wondering whether VB.NET framework provides any simple string grid where I can display set of rows and columns. I know I can use thirdparty controls and DATAGRID. If anyone know any other thing is available for me to display strings on a simple grid please send reply .

Thanks
Ajay

Member 7339436-Aug-04 14:52

Member 733943

6-Aug-04 14:52

Using Datagrid is very easy and essential. I can provide you with some samples how read from SQL and load the info in grid and how to access a specific row in it. That may help.

Accessing Object property of OLEFormat

smritiy6-Aug-04 9:45

smritiy

6-Aug-04 9:45

I'm trying to save the OLE objects in a MSWord document in separate files. So I want to iterate through each shape , access its OLE object, convert it into an image and save the image to a file. However when I try to access the shape.OLEFormat.object it gives me a run-time error saying "No such interface supported". Here's a snippet of the code:

dim myrange as range
dim oShape as word.shape
dim chart as graph.chart

myrange = doc.paragraphs(1).range
for i = 1 to myrange.shaperange.count
oShape = myrange.shaperange(i)
select case oShape.type
case msoShapeType.msoEmbeddedOLEObject
chart = Ctype(oShape.OLEFormat.object,graph.chart)
case else
...
end select
next

Can anybody tell me where I'm going wrong ??

Smriti

Re: Accessing Object property of OLEFormat

Dave Kreskowiak7-Aug-04 6:24