IDataRecord.IsDBNull(Int32) Method
Definition
Important
Some information relates to prerelease product that may be substantially modified before it’s released. Microsoft makes no warranties, express or implied, with respect to the information provided here.
Return whether the specified field is set to null.
public:
bool IsDBNull(int i);public bool IsDBNull (int i);abstract member IsDBNull : int -> boolPublic Function IsDBNull (i As Integer) As BooleanParameters
- i
- Int32
The index of the field to find.
Returns
true if the specified field is set to null; otherwise, false.
Exceptions
The index passed was outside the range of 0 through FieldCount.
Remarks
Call this method to see if there are null column values before calling the typed get methods (for example, GetByte, GetChar, and so on) to avoid raising an error.
Applies to
Spolupráca s nami v službe GitHub
Zdroj tohto obsahu nájdete v službe GitHub, kde môžete vytvárať a skúmať problémy a žiadosti o prijatie zmien. Ďalšie informácie nájdete v našom sprievodcovi prispievateľom.
