How to check if a byte array in datatable is null or not

Question

if(oDataTable.Rows[0]["File"] != null) //byte array
{

}

File column in my table seems null. However when I try to check if it is null or not in the code part, it doesn't go to else part. Can someone tell me how to fix this?

Could it possibly be DBNull instead of null? I would need to see more of your code to know for certain. — SouthShoreAK
– SouthShoreAK, Commented Apr 11, 2012 at 14:47

Dmytro Shevchenko · Accepted Answer · 2012-04-11 14:47:23Z

2

I think you should check for DBNull with Convert.IsDBNull:

if(!Convert.IsDBNull(oDataTable.Rows[0]["File"]))
{
}

answered Apr 11, 2012 at 14:47

Dmytro Shevchenko

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