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Convert.DBNull Field

Definition

A constant that represents a database column that is absent of data; that is, database null.

C#
public static readonly object DBNull;

Field Value

Remarks

The DBNull field is equivalent to DBNull.Value, as the following example shows.

C#
Console.WriteLine(Convert.DBNull.Equals(DBNull.Value));
// Displays True.

Applies to

Производ Верзије
.NET Core 2.0, Core 2.1, Core 2.2, Core 3.0, Core 3.1, 5, 6, 7, 8, 9, 10
.NET Framework 1.1, 2.0, 3.0, 3.5, 4.0, 4.5, 4.5.1, 4.5.2, 4.6, 4.6.1, 4.6.2, 4.7, 4.7.1, 4.7.2, 4.8, 4.8.1
.NET Standard 2.0, 2.1

See also