checking for a null value in a data reader

A

]-[aTc]-[

Hello
I have the following code...
string chkString = " " + dr.GetString(37) + " ";

and I get an error message of ...

Data is Null. This method or property cannot be called on Null values.

How do i check for this null value.

I've tried many things like this..

if (dr.GetValue(37) != null)

{ code}

but does not work

Please help

Thank you

--Mike
 
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Error

Respected Sir ,

i have suffer from this error : Data is Null. This method or property cannot be called on Null values.

// Error in code
dr.GetString(20) // Error line


In database GetString(20) is not specified Please reply me

E-mail (e-mail address removed)


Regards ,

vijay
 
Joined
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Messages
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About Error

Respected Sir ,

i have suffer from this error : Data is Null. This method or property cannot be called on Null values.

// Error in code
dr.GetString(20) // Error line


In database GetString(20) is not specified Please reply me

E-mail (e-mail address removed)


Regards ,
vijay
 
Joined
Aug 24, 2006
Messages
3
Reaction score
0
vijay1584 said:
Respected Sir ,

i have suffer from this error : Data is Null. This method or property cannot be called on Null values.

// Error in code
dr.GetString(20) // Error line


In database GetString(20) is not specified Please reply me

E-mail (e-mail address removed)


Regards ,
vijay
Respected Sir ,

i have suffer from this error : Data is Null. This method or property cannot be called on Null values.

// Error in code
dr.GetString(20) // Error line


In database GetString(20) is not specified Please reply me

E-mail (e-mail address removed)


Regards ,
 

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