OdbcDataReader.IsDBNull(Int32) Method

Reference

Definition

Namespace:: System.Data.Odbc

Assembly:: System.Data.Odbc.dll

Assembly:: System.Data.dll

Package:: System.Data.Odbc v8.0.1

Package:: System.Data.Odbc v9.0.0-rc.2.24473.5

Source:: OdbcDataReader.cs

Source:: OdbcDataReader.cs

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.

Gets a value that indicates whether the column contains nonexistent or missing values.

public:
 override bool IsDBNull(int i);

public:
 virtual bool IsDBNull(int i);

public override bool IsDBNull (int i);

public bool IsDBNull (int i);

override this.IsDBNull : int -> bool

abstract member IsDBNull : int -> bool
override this.IsDBNull : int -> bool

Public Overrides Function IsDBNull (i As Integer) As Boolean

Public Function IsDBNull (i As Integer) As Boolean

Parameters

i: Int32

The zero-based column ordinal.

Returns

Boolean

true if the specified column value is equivalent to DBNull; otherwise false.

Implements

IsDBNull(Int32)

Remarks

To avoid raising an error, call this method to look for null column values before calling the typed Get methods (for example, GetByte, GetChar, and so on).

Applies to

Поділитися через