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How to use IsDBNull() with literal field name
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SPUN@jashongkong.com
-- Moved from [aspngdatagridrepeaterdatalist] to [ngfx-oledb] by James Avery <Click here to reveal e-mail address> --

Hi !!!

At present I use the following to detect null field values :

while (myReader.Read()) {
if (!myReader.IsDBNull(12)) {
..... my code ....
}
}

where myReader is a oledbdatareader

Is there any way by which I can use the literal field name instead of field
column number.

Hope you can help me !!!

Sum
Reply to this message...
 
    
Jim Arnold
Two ways OTTOMH:

if(!Convert.IsDBNull(myReader["myField"])) {
    ...
}

or

if(myReader["myField"] != DBNull.Value) {
    ...
}

Jim

[Original message clipped]
Reply to this message...
 
    
Alexandre Rocco
Sum,

I don't know if I am right, but I do use like this:

if (!IsDBNull("field")){
//do something
}

There was no problem, since the function IsDBNull() takes an object as the
parameter...
You might try it...

Alexandre Rocco

----- Original Message -----
From: <Click here to reveal e-mail address>
To: "ngfx-oledb" <Click here to reveal e-mail address>
Sent: Thursday, April 25, 2002 4:37 AM
Subject: [ngfx-oledb] How to use IsDBNull() with literal field name

> -- Moved from [aspngdatagridrepeaterdatalist] to [ngfx-oledb] by James
Avery <Click here to reveal e-mail address> --
[Original message clipped]
Reply to this message...
 
 
System.Convert
System.DBNull




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