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Now we know where the error is actually occuring. You might want to wrap the .Show() line inside it's own Try/Catch block. I don't know if your going to get the results you expect or not. Also, is it possible that something else on the form is throwing the InvalidCastException?
RageInTheMachine9532
"...a pungent, ghastly, stinky piece of cheese!" -- The Roaming Gnome
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Sorry, cause of the language barrier between us, i don't get ur mean. I already put the .Show() inside the Try/Catch but the code is in the other class (in Lib.class in my code). It's not the same class with the BookDetails.class. Do u mean i need to put the .Show() inside the BookDetails.class?
I already try to catch the InvalidCastException when try to binding the picture, u mean i need to catch the InvalidCastException of the other control? is it ur mean?
I only get one catch the InvalidCastException in my BookDetails.class.
Sorry for my language ability. Thanks
Learning .NET
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Every time i set the breakpoint, if i press F8, it will step into "Dim b As Binding...", then "AddHandler..." without going to "Adrressof MyPictureBox_FormatImage", after that "picBook.DataBindings.Add(b)", then step into "oFrmBookDetails.Show()". When showing, it execute the "MyPictureBox_FormatImage" procedure.
I think it should be execute the "MyPictureBox_FormatImage" first, then step into "oFrmBookDetails.Show()". How come it step into "oFrmBookDetails.Show()" first, then going into "MyPictureBox_FormatImage" procedure.
I mean, put a Try/Catch block around the .Show() you have here:
... then step into "oFrmBookDetails.Show()".
The binding format will not get executed until the .Show() method of the form that is hosting the control is executed. This is when your error is occuring.
RageInTheMachine9532
"...a pungent, ghastly, stinky piece of cheese!" -- The Roaming Gnome
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I have put it,it work okay, two message box will displayed as your form1 application. But other problem raise, after formating the binding picture, the form doesn't load correctly. After &qt oFrmBookDetails.Show() &qt executed, it doesn't call frmBookDetails_load. But if i am not formating the binding picture, it will execute the frmBookDetails_load after it execute the &qt oFrmBookDetails.Show() &qt. Is there any other code I need to put to the formBookDetail?
Thanks. Please help me!!!
Learning .NET
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Helo, I have a problem when sending email from VB.Net application, the error message is
"The server rejected one or more recipient addresses. The server response was: 550 5.7.1 Unable to relay for destinationemail@address.com". What is actually is the problem? How can i get out from this problem? Anyone have any idea, please reply. Thanks in advance....
------------------------
Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click
try
Dim objEmailMessage As System.Web.Mail.MailMessage
Dim objSMTPServer As System.Web.Mail.SmtpMail
objSMTPServer.SmtpServer = "mycomputername"
objEmailMessage = New System.Web.Mail.MailMessage
With objEmailMessage
.To = "destinationemail@address.com"
.From = txtFrom.Text
.Subject = "Great Job!"
.Body = "Want all my money?"
End With
objSMTPServer.Send(objEmailMessage)
catch exc as exception
response.write(exc.innerexception.innerexception.message)
end try
End Sub
Learning .NET
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The problem is that it looks like your using your local computer's SMTP server to send this. Most ISP's won't let you do this and will not relay mail for you. Instead, try using your ISP's SMTP server address in the objSMTPServer.SmtpServer line:
Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click
Try
Dim objEmailMessage As System.Web.Mail.MailMessage
Dim objSMTPServer As System.Web.Mail.SmtpMail
objSMTPServer.SmtpServer = "smtp.myISP.com"
objEmailMessage = New System.Web.Mail.MailMessage
With objEmailMessage
.To = "destinationemail@address.com"
.From = txtFrom.Text
.Subject = "Great Job!"
.Body = "Want all my money?"
End With
objSMTPServer.Send(objEmailMessage)
Catch exc as exception
Response.Write(exc.InnerException.InnerException.Message)
End Try
End Sub
RageInTheMachine9532
"...a pungent, ghastly, stinky piece of cheese!" -- The Roaming Gnome
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Thanks a lot to all ur guys' reply.
I have successfully sending email. I am using my ISP's SMTP server. I am happy with it.
Thanks
Learning .NET
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You already posted the same question in the General Discussion Forums! Don't cross post.
Aaron Eldreth
TheCollective4.com
My Articles
While much is too strange to be believed,
Nothing is too strange to have happened.
- T. Hardy
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How to add an icon to right click menu when selecting a file or folder.
Installer is going to do this kind of stuff or I can just set it up in
registry? I already defined Directory/Shell/MyApp/Command to add context menu
but i don't know how to add icon.
Shin
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Hi
I have problem the same as you. But I want to know which items You put these keys(HKEY_ CLASSES_ROOT or HKEY_LOCAL_MACHINE)???
Thanks
tramdtt
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I have tried but its only correct with several file type!!!
tramdtt
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tramdtt
you are successfull with diplaying icons or just menu without icons.
Can you put what did you put in the registry.
I am still having problem with displaying icon
Shin
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Hi, Shinay
I have still problem with icon of menu item and I have not solved it!!!
Who can help me???
tramdtt
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"Static" menu extensions like you are adding through the registry (under the "shell") subkey don't allow icons. At all. If you want to add a menu item with an icon, you need to write a COM shell extension (context menu handler) which implements IContextMenu. Then you can add items to the supplied HMENU. You can use SetMenuItemBitmaps() to add an icon, but it won't be pretty [like the winzip ones]. If you want a really nice full-colour icon you have to implement IContextMenu2 in your shell extension, add an owner-draw item and draw it yourself.
Hope this helps
grigri
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How do I make the last item added at the end of the text in a rtf control is visible. ie. scroll it so that the bottom of the text is visible.
Rugby League: The Greatest Game Of All.
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Call the ScrollToCaret method of the RichTextBox control.
RichTextBox1.Focus() ' Make sure the RichTextBox has the focus so ScrollToCaret works.
RichTextBox1.Append("some text to append.")
RichTextBox1.ScrollToCaret()
A warning though, the ScrollToCaret method will NOT work if the RichTextBox control does not have the focus.
RageInTheMachine9532
"...a pungent, ghastly, stinky piece of cheese!" -- The Roaming Gnome
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Thanks Dave, a big help, as ever.
Rugby League: The Greatest Game Of All.
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Hi,
Has anyone developed a custom metadata editor using C#.net or vb.net. if yes, i have a question.
I am trying to develop a custom metadata editor using C#.net. i am using ArcGis 8.3 and Visual studio .net 2003.
when i am trying to execute my custom metadata editor in ArcCatalog it says "Object reference not set to an instance of an object". i don't know where i am going wrong..
I appreciate your help in this regard..
example is given on http://arcobjectsonline.esri.com
Thanks,
abhi
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Just wondering if it is possible to call Library and GetProcAddress from ASP pages or VB scripts.
I know how to do this in VB6 programs from reading some articles on CodeProject. The question is, is the same thing possible in ASP pages or VB scripts? If yes, please let me know.
Thanks.
My articles and software tools
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Nope. You can't call API functions from VBScript or ASP pages.
RageInTheMachine9532
"...a pungent, ghastly, stinky piece of cheese!" -- The Roaming Gnome
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Thanks for the answer. Is there a way to get around it? What I want to do is executing code in a non-com dll from ASP pages.
My articles and software tools
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You do realize that is a HUGE security violation?
There is a theoretical way around it. You would have to write an ActiveX control to make the calls into the .DLL for you. This control would have to be an interface between the .DLL and VBScript, basically duplicating the functions you wanted to call in the .DLL and passing the parameters from VBScript to the function in the .DLL and returning the return values.
...in theory anyway. I don't know if your ActiveX control will get the rights it needs to do this though. You'll just have to write up a test control to see...
RageInTheMachine9532
"...a pungent, ghastly, stinky piece of cheese!" -- The Roaming Gnome
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Dave Kreskowiak wrote:
You do realize that is a HUGE security violation?
Yes. 
Dave Kreskowiak wrote:
There is a theoretical way around it. You would have to write an ActiveX control to make the calls into the .DLL for you. This control would have to be an interface between the .DLL and VBScript, basically duplicating the functions you wanted to call in the .DLL and passing the parameters from VBScript to the function in the .DLL and returning the return values.
Actually, I tried this, it worked on my own machine. However, I cannot get the control registered on the server I am trying to deploy (it's a shared server, I am not allowed to do it).
Another possible way is, I can upload exe file into the site and execute it from my .NET application, but the rights of the ASPNET account is restricted (cannot register a com dll, for example). If only I can execute my exe file from ASP applications, then I will probably be able to get around the problem. BTW, I cannot use WScript.Shell to execute a program from ASP page (it is restricted, CreateObject fails). Anyway, maybe I should not try to avoid paying extra for a dedicated server.
Thanks for your knowledgeable replies.
My articles and software tools
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Hi all,
I have a vb.net app ready and working on a single, standalone machine - XP, SQLSvr2000. Now this has to be ported to a multi-user environment, in which all machines will have XP installed. It is not yet decided whether Win Svr 2003 shall be part of this environment or not.
I wanted to know the following -
1. What are the various changes at code level and at database design level that i need to carry out in order to move to LAN envmt a) with XP, and b) with WIn Svr 2003 ?
2. What are the design issues that i need to consider if it were an altogether fresh project ?
Any guidelines on this shall be highly appreciated.
Thanks in advance and cheers,
Sanjay.
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