UniDataAdapter Constructor(String,UniConnection)

In This Topic

Initializes a new instance of the UniDataAdapter class with a SelectCommand and a UniConnection object.

Syntax

Visual Basic
C#

'Declaration
 
Public Function New( _
   ByVal selectCommandText As String, _
   ByVal selectConnection As UniConnection _
)

public UniDataAdapter( 
   string selectCommandText,
   UniConnection selectConnection
)

Parameters

selectCommandText: A System.String that contains a SQL SELECT statement to be used as the CommandText of the SelectCommand property of the UniDataAdapter.
selectConnection: A UniConnection that represents the connection.

Remarks

This implementation of the UniDataAdapter can be useful in an application that must call the Fill method for two or more UniDataAdapter objects.

Example

The following example creates a UniDataAdapter, sets some of its properties, retrieves data from a table, and displays it.

csharp

public void CreateDataAdapter(MyUniConnection myConnection)
{
  UniDataAdapter myAdapter = new UniDataAdapter("SELECT DeptNo, DName FROM Test.Dept", myConnection);
  myAdapter.MissingSchemaAction = MissingSchemaAction.AddWithKey;
  DataSet myDataSet = new DataSet();
  myAdapter.Fill(myDataSet,"Departments");
  //Get all data from all tables within the dataset
  foreach(DataTable myTable in myDataSet.Tables)
  {
    foreach(DataRow myRow in myTable.Rows)
    {
      foreach (DataColumn myColumn in myTable.Columns)
      {
        Console.Write(myRow[myColumn]+"\t");
      }
      Console.WriteLine();
    }
    Console.WriteLine();
  }
}

Visual Basic

Public Sub CreateDataAdapter(ByVal myConnection As UniConnection)
  Dim myAdapter As UniDataAdapter = New UniDataAdapter("SELECT DeptNo, DName FROM Test.Dept", myConnection)
  myAdapter.MissingSchemaAction = MissingSchemaAction.AddWithKey
  Dim myDataSet As DataSet = New DataSet
  myAdapter.Fill(myDataSet, "Departments")
  Dim myTable As DataTable
  Dim myRow As DataRow
  Dim myColumn As DataColumn
  ' Get all data from all tables within the dataset
  For Each myTable In myDataSet.Tables
    For Each myRow In myTable.Rows
      For Each myColumn In myTable.Columns
        Console.Write(myRow(myColumn) & Chr(9))
      Next myColumn
      Console.WriteLine()
    Next myRow
    Console.WriteLine()
  Next myTable
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

UniDataAdapter Class
UniDataAdapter Members
Overload List
UniConnection Class
UniCommand Class

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