C#NET2008 What's the meaning of operator ?

[lenniekuah]

Hullo Good Guys,
I need your help, Please help me.

I noticed the use of this operator ?
What's the meaning of it.

This is the coding that contained ?

txtCustomer.text = DR["CompanyName"] == System.DBNull.Value ? string.Empty : Convert.ToString(DR["CompanyName"]);
 
txtAddress.text =  DR["Address"] == System.DBNull.Value? string.Empty: Convert.ToString(DR["Address"]);
 
 

Thank you for your help.

[Joseph Martell]

The "?" is actually 1 part of the ?: ternary operator. Look at this documentation from MSDN for more information.

Unlike most of the other operators, this one is a little difficult to look up if your not familiar with it.

[lenniekuah]

Hi Joseph Martell,
Thank you for the URL Link and also for sharing the informatio with me. I will check it out and try it out of my coding.

Thank you.

[Subin Ninan]

int i = (1 < 2) ? 1 : 2;
 

this is an inline assignment operator on basis of if condition. Value of variable i after execution will be 1.

Value = (condition)?<then part>:<else part>;

[lenniekuah]

Hi Subin Ninan,
Thank you very much for sharing the information with me.
It has help me logically.