SqlParameter Constructor (String, SqlDbType, Int32)

SqlParameter Constructor (String, SqlDbType, Int32)


Initializes a new instance of the SqlParameter class that uses the parameter name, the SqlDbType, and the size.

Namespace:   System.Data.SqlClient
Assembly:  System.Data (in System.Data.dll)

public SqlParameter(
	string parameterName,
	SqlDbType dbType,
	int size


Type: System.String

The name of the parameter to map.

Type: System.Data.SqlDbType

One of the SqlDbType values.

Type: System.Int32

The length of the parameter.

Exception Condition

The value supplied in the dbType parameter is an invalid back-end data type.

The Size is inferred from the value of the dbType parameter if it is not explicitly set in the size parameter.

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, 88);
    parameter.IsNullable = true;
    parameter.Direction = ParameterDirection.Output;
    parameter.Value = paramValue;


.NET Framework
Available since 1.1
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