DataPagerCommandEventArgs.TotalRowCount Properti

Definisi

Ruang nama:

System.Web.UI.WebControls

Rakitan:

System.Web.Extensions.dll

Mendapatkan jumlah total rekaman yang akan ditampilkan.

public:
 property int TotalRowCount { int get(); };

public int TotalRowCount { get; }

member this.TotalRowCount : int

Public ReadOnly Property TotalRowCount As Integer

Nilai Properti

Int32

Jumlah total rekaman yang akan ditampilkan.

Contoh

Contoh berikut menunjukkan cara menggunakan TotalRowCount properti untuk memeriksa apakah pengguna meminta item yang tidak ada di ListView kontrol. Contoh kode ini adalah bagian dari contoh yang lebih besar yang disediakan untuk DataPagerCommandEventArgs kelas .

protected void TemplatePagerField_OnPagerCommand(object sender, DataPagerCommandEventArgs e)
{     
    // Get the new page number 
    TextBox PageNumberTextBox = (TextBox)e.Item.FindControl("PageNumberTextBox");
    int newPageNumber = -1;
    try
    {
      newPageNumber = Convert.ToInt32(PageNumberTextBox.Text.Trim());
    }
    catch (FormatException)
    {
      Message.Text = "Invalid page number.";
      return;
    }
    catch (OverflowException)
    {
      Message.Text = "Invalid page number.";
      return;
    }

    int newIndex = (newPageNumber - 1) * e.Item.Pager.PageSize;
    //Verify if the new index is valid
    if (newIndex >= 0 && newIndex <= e.TotalRowCount)
    {
      //Set the new start index and maximum rows
      e.NewStartRowIndex = newIndex;
      e.NewMaximumRows = e.Item.Pager.MaximumRows;
    }
    else
      Message.Text = "Invalid page number.";
}

Protected Sub TemplatePagerField_OnPagerCommand(ByVal sender As Object, _
  ByVal e As DataPagerCommandEventArgs)
  
  ' Get the new page number 
  Dim PageNumberTextBox As TextBox = _
    CType(e.Item.FindControl("PageNumberTextBox"), TextBox)
  
  Dim newPageNumber As Integer = -1
  Try
    newPageNumber = Convert.ToInt32(PageNumberTextBox.Text.Trim())
  Catch fex As FormatException
    Message.Text = "Invalid page number."
    Return
  Catch oex As OverflowException
    Message.Text = "Invalid page number."
    Return
  End Try
      
  Dim newIndex As Integer = _
    (newPageNumber - 1) * e.Item.Pager.PageSize
  
  'Verify if the new index is valid
  If newIndex >= 0 AndAlso newIndex <= e.TotalRowCount Then
    'Set the new start index and maximum rows
    e.NewStartRowIndex = newIndex
    e.NewMaximumRows = e.Item.Pager.MaximumRows
  Else
    Message.Text = "Invalid page number."
  End If
  
End Sub

Keterangan

TotalRowCount Gunakan properti untuk mengambil jumlah total rekaman di sumber data terkait.

Lihat juga

• DataPager
• ListView
• TemplatePagerField
• PagerCommand
• OnPagerCommand(DataPagerCommandEventArgs)
• Kontrol Server Web ListView