Add(String,SqlType,Int32,String) Method

In This Topic

Adds a SqlParameter to the SqlParameterCollection given the parameter name, data type, column width, and source column name.

Syntax

Visual Basic
C#

'Declaration
 
Public Overloads Function Add( _
   ByVal parameterName As String, _
   ByVal dbType As SqlType, _
   ByVal size As Integer, _
   ByVal sourceColumn As String _
) As SqlParameter

public SqlParameter Add( 
   string parameterName,
   SqlType dbType,
   int size,
   string sourceColumn
)

Parameters

parameterName: The name of the parameter.
dbType: One of the SqlType values.
size: The maximum size, in bytes, of the data the parameter can contain.
sourceColumn: The name of the source column.

Return Value

The new SqlParameter object.

Example

The following example creates a SqlParameterCollection, adds instances of SqlParameter to the collection, and returns a reference to the new SqlParameter.

csharp

public void CreateSqlParamColl(SqlConnection myConn) {
  SqlCommand myCommand = new SqlCommand("SELECT * FROM Test.Dept WHERE DeptNo = :DeptNo", myConn);
  SqlParameterCollection myParamCollection = myCommand.Parameters;
  SqlParameter myNewParameter = myParamCollection.Add("DeptNo", SqlType.Int, 40, "DeptNo");
}

Visual Basic

Public Sub CreateSqlParamColl(myConn As SqlConnection)
  Dim myCommand As SqlCommand = New SqlCommand("SELECT * FROM Test.Dept WHERE DeptNo = :DeptNo", myConn)
  Dim myParamCollection As SqlParameterCollection = myCommand.Parameters
  Dim myNewParameter As SqlParameter = myParamCollection.Add("DeptNo", SqlType.Int, 40, "DeptNo")
End Sub

Requirements

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

Reference

SqlParameterCollection Class
SqlParameterCollection Members
Overload List

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