FillPage(Int32,Int32) Method

In This Topic

Fills the System.Data.DataTable.Rows collection of the DbDataTable with rows from the data source starting at the row indicated by and including up to the number of rows indicated by .

Syntax

Visual Basic
C#

'Declaration
 
Public Overloads Function FillPage( _
   ByVal startRecord As Integer, _
   ByVal maxRecords As Integer _
) As Integer

public int FillPage( 
   int startRecord,
   int maxRecords
)

Parameters

startRecord: The number of the first row to retrieve. Value 0 means the first row, 1 means the second, and so on.
maxRecords: The maximum number of records to retrieve.

Return Value

The number of rows successfully added to or refreshed in the DbDataTable. This does not include rows affected by statements that do not return rows.

Remarks

This method clears any exisiting rows in the DbDataTable.

Example

This sample shows how to use paged access to data. It attempts to read rows 11 through 20 from the table and to display them. However, if quantity of records in the table is less than 20, only available rows will be filled into DbDataTable. Number of rows actually added is rendered to console.

csharp

public void FillDataTable(DbDataTable myDataTable, IDbConnection myConnection)
{
  myDataTable.Connection = myConnection;
  myDataTable.SelectCommand = myConnection.CreateCommand();
  myDataTable.SelectCommand.CommandText = "SELECT EmpNo, EName FROM Emp";
  try
  {
    Console.WriteLine(myDataTable.FillPage(10,10) + " rows filled.");
    foreach(DataRow myRow in myDataTable.Rows)
    {
      foreach(DataColumn myCol in myDataTable.Columns)
      {
        Console.Write(myRow[myCol]+"\t");
      }
      Console.WriteLine();
    }
  }
  finally
  {
    myDataTable.Clear();
  }
}

Visual Basic

Public Sub FillDataTable(ByVal myDataTable As DbDataTable, ByVal myConnection As IDbConnection)
  myDataTable.Connection = myConnection
  myDataTable.SelectCommand = myConnection.CreateCommand()
  myDataTable.SelectCommand.CommandText = "SELECT EmpNo, EName FROM Emp"
  Try
    Console.WriteLine(myDataTable.FillPage(10, 10) & " rows filled.")
    Dim myRow As DataRow
    Dim myCol As DataColumn
    For Each myRow In myDataTable.Rows
      For Each myCol In myDataTable.Columns
        Console.Write(myRow(myCol) & Chr(9))
      Next myCol
      Console.WriteLine()
    Next myRow
  Finally
    myDataTable.Clear()
  End Try
End Sub

Reference

DbDataTable Class
DbDataTable Members
Overload List

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