Export (0) Print
Expand All
This topic has not yet been rated - Rate this topic

SqlParameter.DbType Property

Gets or sets the SqlDbType of the parameter.

Namespace:  System.Data.SqlClient
Assembly:  System.Data (in System.Data.dll)
public override DbType DbType { get; set; }

Property Value

Type: System.Data.DbType
One of the SqlDbType values. The default is NVarChar.

Implements

IDataParameter.DbType
IDataParameter.DbType

The SqlDbType and DbType are linked. Therefore, setting the DbType changes the SqlDbType to a supporting SqlDbType.

For a list of the supported data types, see the appropriate SqlDbType member. For more information, see DataAdapter Parameters (ADO.NET).

The following example creates a SqlParameter and sets some of its properties.


    private static void AddSqlParameter(SqlCommand command, 
        string paramValue)
    {
        SqlParameter parameter = new SqlParameter(
            "@Description", SqlDbType.VarChar);
        parameter.Value = paramValue;
        parameter.IsNullable = true;
        command.Parameters.Add(parameter);
    }

private static void SetParameterToNull(IDataParameter parameter)
{
    if (parameter.IsNullable)
    {
        parameter.Value = DBNull.Value;
    }
    else
    {
        throw new ArgumentException("Parameter provided is not nullable", "parameter");
    }
}



.NET Framework

Supported in: 4, 3.5, 3.0, 2.0, 1.1, 1.0

.NET Framework Client Profile

Supported in: 4, 3.5 SP1

Windows 7, Windows Vista SP1 or later, Windows XP SP3, Windows XP SP2 x64 Edition, Windows Server 2008 (Server Core not supported), Windows Server 2008 R2 (Server Core supported with SP1 or later), Windows Server 2003 SP2

The .NET Framework does not support all versions of every platform. For a list of the supported versions, see .NET Framework System Requirements.

Community Additions

ADD
Show:
© 2014 Microsoft. All rights reserved.