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Hello Team,
 
I have DataReader in which Names of ToolStripMenuItem has been stored.
I want to Disable all the ToolStripMenuItem which are in this DataReader.
I have below code -
 
while(dr.Read())
            {
 
                menuStrip1.Items[dr[0].ToString()].Visible = false;
            }

But I am getting error as "object reference is not set to an instance of an object"
 
Please help.
Posted 18-Feb-13 5:12am

1 solution

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Solution 1

Object reference not set to an instance of an object

This error happens when you try to use a property or call a method of an object that is null. More details: here[^]

A simple use of Visual studio DEBUGGER can tell you the object because of which it is happening. Just look at the stack trace and put a debugger on that line. Check the objects of that line and see if any one is null and you are trying to use that objects property. Handle the same.
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Comments
Maciej Los at 18-Feb-13 11:38am
   
Short and to the point. +5!
Sandeep Mewara at 18-Feb-13 11:44am
   
Thanks Maciej.
 
OT, do you have any interest on front end side? page designing - HTML?
Pravinkarne.31 at 20-Feb-13 9:44am
   
Thank you so much Friends!!!
You are just rocking!!!

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

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