Insert null values in Sql Server2008 using SqlCommand parameters of C#.

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Hi,

I am using SqlCommand to insert or update values in a row of a table. I have added the parameters in the sqlcommand object. I want to update some of the column values to null. How can I update a cell with the value as NULL.

Thanks,
Velkumar

Posted 20-May-12 23:09pm

Velkumar Kannan

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Zoltán Zörgő 27-May-12 13:38pm

Any progress?

2 solutions

Solution 1

Here are some methods: http://stackoverflow.com/questions/4555935/how-to-assign-null-to-a-sqlparameter[^]

Posted 20-May-12 23:14pm

Zoltán Zörgő

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sachin10d · Accepted Answer · 2012-05-20T23:28:00

Try this

Method1:

C#

SqlCommand command = new SqlCommand("insert into TableName values
            (@Col1,@Col2)",connection);
command.Parameters.AddWithValue("@Col2",DBNull.Value);

Method2:

C#

SqlCommand command = new SqlCommand("insert into TableName values
            (@Col1,@Col2)",connection);
command.Parameters.Add("@Col2",System.Data.SqlDbType.Int).Value=DBNull.Value;