C# Convert IsDBNull

Description

Convert IsDBNull returns an indication whether the specified object is of type DBNull.

Syntax

Convert.IsDBNull has the following syntax.

public static bool IsDBNull(
  Object value
)

Parameters

Convert.IsDBNull has the following parameters.

• value - An object.

Returns

Convert.IsDBNull method returns true if value is of type DBNull; otherwise, false.

Example

The following example uses a SqlDataReader object to retrieve survey data from a database.

//ww w  . j av  a 2 s .c  o m
using System;
public class MainClass{
  public static void Main(String[] argv){  
    System.Console.WriteLine(Convert.IsDBNull('a'));
  }
}

The code above generates the following result.