| Overload | Description | 
|---|---|
| IsDBNull(String) | Gets a value indicating whether the column contains non-existent or missing values. | 
| IsDBNull(Int32) | Gets a value indicating whether the column contains non-existent or missing values. | 
| Overload | Description | 
|---|---|
| IsDBNull(String) | Gets a value indicating whether the column contains non-existent or missing values. | 
| IsDBNull(Int32) | Gets a value indicating whether the column contains non-existent or missing values. |