How do I get out of this problem of delegate to an instance method cannot have null 'this'.

Question

1.00/5 (1 vote)

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this is the error line that opens in the designer.cs

C#

this.Load += new System.EventHandler(this.frmLogs_Load);

kindly help me out

What I have tried:

i dont know what to do because all the other forms can be opened except this particular form

Posted 24-Mar-16 1:24am

Member 12414126

Updated 24-Mar-16 2:55am

v3

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Comments

OriginalGriff 24-Mar-16 7:27am

Which part of that is it complaining about?

Sinisa Hajnal 24-Mar-16 7:40am

Please do the following:
a) remove all the code
b) post only the code relevant to the error: delegate definition, method executed and delegate instantiation and call
c) use code tags to format the code properly

Also show the code around the line that shows the error if it is not already included. Thank you.

Richard MacCutchan 24-Mar-16 7:58am

<pre> tags, not 'code'.

FARONO 24-Mar-16 8:27am

Isn't there some "owner" incorrect? How do you open the form?

BillWoodruff 24-Mar-16 8:56am

Put breakpoints in the code: single-step through it. Isolate the error and tell us where it occurs.

Sascha Lefèvre 24-Mar-16 9:49am

I have no idea what could be going wrong there.. but it's kind of interesting. If you like, zip your project, upload it to some file-sharing site (dropbox or something), share the download-link here and I'll take a look at it.

ZurdoDev 24-Mar-16 11:07am

In ASP.Net you can just delete the designer file and then right-click your project and choose "Convert to Web Application" and it will recreate it. You shouldn't be touching designer files.

BillWoodruff 24-Mar-16 17:08pm

The most common source of designer.cs problems I have seen is the NameSpace name in the designer.cs file somehow becoming different with the NameSpace name in the Form the designer.cs file. Also check the 'public partial class declarations for any mis-spelling.

Sergey Alexandrovich Kryukov 24-Mar-16 17:59pm

Your whole approach is wrong. Your goal is not to "get out of the problem", but to understand how things works. Learn how delegate really work, examine your runtime with the debugger, experiment with code to get good understanding. Your code sample is not informative. But it does something really weird, because it's not easy to achieve null "this".
—SA

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