Dumb question - Object Referencing

[FalconDEW]

Ok - please forgive me for this dumb question, but I need help with some basic VB.Net sytax.

 

I want to make use of the combo box .contains method. The method uses "value as object" as it's input. I have a string variable that I want to pass into the method so I can see if my string is contained within the combo box. However, the method keeps generating the "Object reference not set to an instance of an object".

 

How can I reference the string variable correctly? I've tried creating a new object and setting it equal to the string - but I know there is just something stupid I'm missing with my sytax. :mad:

 

-Falcon

[wessamzeidan]

Can you post some of your code to see where's the problem.....

[FalconDEW]

Sure

 

This is a quick example of what will cause the problem - though slightly diferrent than what I was explaining above. The problem I'm having is simply how to get a string referenced correctly so it can be put into a function that requires an 'Object' as input?

 

       Dim cmbExample As ComboBox

       cmbExample.Items.Add("Test")

 

-Falcon

[wessamzeidan]

the problem is not with the string. If this is how you're doing it then you're only creating a reference to a combobox, you need to initialize it

 

Dim cmbExample As ComboBox

cmbExample=New ComboBox()

cmbExample.Items.Add("Test")

[FalconDEW]

Yeah - you're right. I actually figured out my problem too. I was using 2 different forms and forgot to make the constructor between the forms... so every time I tried to access a variable on the original form it threw the error about object referencing.

 

So - my problem is fixed! Thanks!