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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 */
public DbType get_DbType ()

/** @property */
public void set_DbType (DbType value)

public override function get DbType () : DbType

public override function set DbType (value : DbType)

Property Value

One of the SqlDbType values. The default is NVarChar.

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 Using Parameters with a DataAdapter.

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);


Windows 98, Windows 2000 SP4, Windows CE, Windows Millennium Edition, Windows Mobile for Pocket PC, Windows Mobile for Smartphone, Windows Server 2003, Windows XP Media Center Edition, Windows XP Professional x64 Edition, Windows XP SP2, Windows XP Starter Edition

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

.NET Framework

Supported in: 2.0, 1.1, 1.0

.NET Compact Framework

Supported in: 2.0, 1.0

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