ListViewSortEventArgs.SortDirection 속성

정의

네임스페이스:

System.Web.UI.WebControls

어셈블리:

System.Web.Extensions.dll

컨트롤을 정렬 ListView 할 방향을 가져오거나 설정합니다.

public:
 property System::Web::UI::WebControls::SortDirection SortDirection { System::Web::UI::WebControls::SortDirection get(); void set(System::Web::UI::WebControls::SortDirection value); };

public System.Web.UI.WebControls.SortDirection SortDirection { get; set; }

member this.SortDirection : System.Web.UI.WebControls.SortDirection with get, set

Public Property SortDirection As SortDirection

속성 값

SortDirection

값 중 SortDirection 하나입니다.

예제

다음 예제에서는 정렬 방향 및 정렬 되는 열을 표시 하는 개체를 사용 ListViewSortEventArgs 하는 방법을 보여 있습니다. 이 코드 예제는 클래스에 제공된 더 큰 예제의 ListViewSortEventArgs 일부입니다.

void ContactsListView_Sorting(Object sender, ListViewSortEventArgs e)
{
  // Check the sort direction to set the image URL accordingly.
  string imgUrl;
  if (e.SortDirection == SortDirection.Ascending)
    imgUrl = "~/images/ascending.gif";
  else
    imgUrl = "~/images/descending.gif";
    
  // Check which field is being sorted
  // to set the visibility of the image controls.
  Image sortImage1 = (Image) ContactsListView.FindControl("SortImage1");
  Image sortImage2 = (Image)ContactsListView.FindControl("SortImage2");
  Image sortImage3 = (Image)ContactsListView.FindControl("SortImage3");
  switch (e.SortExpression)
  {
    case "FirstName":
      sortImage1.Visible = true;
      sortImage1.ImageUrl = imgUrl;
      sortImage2.Visible = false;
      sortImage3.Visible = false;
      break;
    case "LastName":
      sortImage1.Visible = false;
      sortImage2.Visible = true;
      sortImage2.ImageUrl = imgUrl;
      sortImage3.Visible = false;
      break;
    case "EmailAddress":
      sortImage1.Visible = false;
      sortImage2.Visible = false;
      sortImage3.Visible = true;
      sortImage3.ImageUrl = imgUrl;
      break;
  }
}

Sub ContactsListView_Sorting(ByVal sender As Object, ByVal e As ListViewSortEventArgs) 

  ' Check the sort direction to set the image URL accordingly.
  Dim imgUrl As String
  If e.SortDirection = SortDirection.Ascending Then
    imgUrl = "~/images/ascending.gif"
  Else
    imgUrl = "~/images/descending.gif"
  End If
  
  ' Check which field is being sorted
  ' to set the visibility of the image controls.
  Dim sortImage1 As Image = CType(ContactsListView.FindControl("SortImage1"), Image)
  Dim sortImage2 As Image = CType(ContactsListView.FindControl("SortImage2"), Image)
  Dim sortImage3 As Image = CType(ContactsListView.FindControl("SortImage3"), Image)
  
  Select Case e.SortExpression
    Case "FirstName"
      sortImage1.Visible = True
      sortImage1.ImageUrl = imgUrl
      sortImage2.Visible = False
      sortImage3.Visible = False
    Case "LastName"
      sortImage1.Visible = False
      sortImage2.Visible = True
      sortImage2.ImageUrl = imgUrl
      sortImage3.Visible = False
    Case "EmailAddress"
      sortImage1.Visible = False
      sortImage2.Visible = False
      sortImage3.Visible = True
      sortImage3.ImageUrl = imgUrl
  End Select
  
End Sub

설명

Sorting 이벤트가 발생하면 속성을 사용하여 컨트롤이 SortDirection 항목을 정렬할 순서를 ListView 지정하거나 확인할 수 있습니다.

추가 정보

• SortDirection
• SortExpression
• 기술 개요: ListView 컨트롤