Application vb6 to Application vb.net

Question

0.00/5 (No votes)

See more:

Public apExcel As Microsoft.Office.Interop.Excel.Application = DirectCast(CreateObject("Excel.Application"), Microsoft.Office.Interop.Excel.Application)

Public Sub LoadSpreadsheet(ByRef cSheetType As String)

apExcel.Workbooks.Open(strSheetName)

End Sub

sometimes apExcel is Nothing and creates NullReferenceException when trying to open
is there any way delaying or some other solution thanks..

Posted 11-Jan-12 7:19am

Tony Radu

Updated 11-Jan-12 7:27am

Not Active

v2

Add a Solution

Comments

[no name] 11-Jan-12 13:30pm

What does this have to do with converting from VB6 to VB.NET?

2 solutions

Add a Solution

Add your solution here

Treat my content as plain text, not as HTML

Preview 0

…

Existing Members

Sign in to your account

...or Join us

Download, Vote, Comment, Publish.

Your Email
Password
Forgot your password?

Your Email
This email is in use. Do you need your password?
Optional Password

I have read and agree to the Terms of Service and Privacy Policy
Please subscribe me to the CodeProject newsletters

When answering a question please:

Read the question carefully.
Understand that English isn't everyone's first language so be lenient of bad spelling and grammar.
If a question is poorly phrased then either ask for clarification, ignore it, or edit the question and fix the problem. Insults are not welcome.
Don't tell someone to read the manual. Chances are they have and don't get it. Provide an answer or move on to the next question.

Let's work to help developers, not make them feel stupid.

This content, along with any associated source code and files, is licensed under The Code Project Open License (CPOL)

Not Active · Answer 1 · 2012-01-11T07:29:00

Solution 1

Don't create the reference in a global scope. You should be creating the Excel.Application when needed and closing and disposing when not in use.

Posted 11-Jan-12 7:29am

Not Active

Comments

Tony Radu 12-Jan-12 16:56pm

While apExcel Is Nothing
code to wait until its intialized??
End While

Jαved · Answer 2 · 2012-01-11T20:51:00

Solution 2

go through this-

Migrating a VB Project to VB.NET[^]

Posted 11-Jan-12 20:51pm

Jαved

Comments

Tony Radu 13-Jan-12 12:49pm

still not getting a solution once in 20 this error occurs any help thanks..