다음을 통해 공유


GridView.Sort(String, SortDirection) 메서드

정의

지정된 정렬 식과 방향을 기준으로 GridView 컨트롤을 정렬합니다.

public:
 virtual void Sort(System::String ^ sortExpression, System::Web::UI::WebControls::SortDirection sortDirection);
public virtual void Sort (string sortExpression, System.Web.UI.WebControls.SortDirection sortDirection);
abstract member Sort : string * System.Web.UI.WebControls.SortDirection -> unit
override this.Sort : string * System.Web.UI.WebControls.SortDirection -> unit
Public Overridable Sub Sort (sortExpression As String, sortDirection As SortDirection)

매개 변수

sortExpression
String

GridView 컨트롤을 정렬하는 기준으로 사용할 정렬 식입니다.

sortDirection
SortDirection

SortDirection 값 중 하나입니다.

예외

GridView 컨트롤이 데이터 소스에 바인딩되어 있지만 데이터 소스와 연결된 DataSourceViewnull인 경우

예제

다음 예제에서는 사용 하는 Sort 방법에 설명 합니다 프로그래밍 방식으로 여러 열을 기준으로 컨트롤을 GridView 정렬 하는 방법입니다.


<%@ Page language="C#" %>

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN"
    "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<script runat="server">

  void SortButton_Click(Object sender, EventArgs e)
  {

    String expression = "";
    SortDirection direction;

    // Create the sort expression from the values selected 
    // by the user from the DropDownList controls. Multiple
    // columns can be sorted by creating a sort expression
    // that contains a comma-separated list of field names.
    expression = SortList1.SelectedValue + "," + SortList2.SelectedValue;
    
    //  Determine the sort direction. The sort direction
    // applies only to the second column sorted.
    switch (DirectionList.SelectedValue)
    {
      case "Ascending":
        direction = SortDirection.Ascending;
        break;
      case "Descending":
        direction = SortDirection.Descending;
        break;
      default:
        direction = SortDirection.Ascending;
        break;
    }
    
    // Use the Sort method to programmatically sort the GridView
    // control using the sort expression and direction.
    CustomersGridView.Sort(expression, direction);
    
  }
    
</script>

<html xmlns="http://www.w3.org/1999/xhtml" >
  <head runat="server">
    <title>GridView Sort Example</title>
</head>
<body>
    <form id="form1" runat="server">
        
      <h3>GridView Sort Example</h3>

      <table>
        <tr>
          <td>
             Sort by:
            <asp:dropdownlist ID="SortList1"
              runat="server">
              <asp:listitem Selected="true">CustomerID</asp:listitem>
              <asp:listitem>CompanyName</asp:listitem>
              <asp:listitem>Address</asp:listitem>
              <asp:listitem>City</asp:listitem>
              <asp:listitem>PostalCode</asp:listitem>
              <asp:listitem>Country</asp:listitem>
            </asp:dropdownlist>
          </td>
          <td colspan="2">
             
          </td>
        </tr>
        <tr>
          <td>
            Then by:
              <asp:dropdownlist ID="SortList2"
                runat="server">
                <asp:listitem Selected="true">CustomerID</asp:listitem>
                <asp:listitem>CompanyName</asp:listitem>
                <asp:listitem>Address</asp:listitem>
                <asp:listitem>City</asp:listitem>
                <asp:listitem>PostalCode</asp:listitem>
                <asp:listitem>Country</asp:listitem>
              </asp:dropdownlist>
          </td>
          <td>
             Sort order:      
          </td>
          <td>
            <asp:radiobuttonlist id="DirectionList"
              runat="server">
              <asp:listitem selected="true">Ascending</asp:listitem>
              <asp:listitem>Descending</asp:listitem>
            </asp:radiobuttonlist>
          </td>
        </tr>
      </table>

      <asp:button id="SortButton"
        text="Sort"
        onclick="SortButton_Click" 
        runat="Server"/>  

      <br/>
      <hr/>
      <br/>

      <asp:gridview id="CustomersGridView" 
        datasourceid="CustomersSource" 
        autogeneratecolumns="true"
        emptydatatext="No data available." 
        allowpaging="true" 
        runat="server">
      </asp:gridview>
            
      <!-- This example uses Microsoft SQL Server and connects  -->
      <!-- to the Northwind sample database. Use an ASP.NET     -->
      <!-- expression to retrieve the connection string value   -->
      <!-- from the Web.config file.                            -->
      <asp:sqldatasource id="CustomersSource"
        selectcommand="Select [CustomerID], [CompanyName], [Address], [City], [PostalCode], [Country] From [Customers]"
        connectionstring="<%$ ConnectionStrings:NorthWindConnectionString%>" 
        runat="server"/>
        
    </form>
  </body>
</html>

<%@ Page language="VB" %>

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN"
    "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<script runat="server">

  Sub SortButton_Click(ByVal sender As Object, ByVal e As EventArgs)
    
    Dim expression As String = ""
    Dim direction As SortDirection

    ' Create the sort expression from the values selected 
    ' by the user from the DropDownList controls. Multiple
    ' columns can be sorted by creating a sort expression
    ' that contains a comma-separated list of field names.
    expression = SortList1.SelectedValue & "," & SortList2.SelectedValue
    
    ' Determine the sort direction. The sort direction
    ' applies only to the second column sorted.
    Select Case DirectionList.SelectedValue
    
      Case "Ascending"
        direction = SortDirection.Ascending
      Case "Descending"
        direction = SortDirection.Descending
      Case Else
        direction = SortDirection.Ascending

    End Select
    
    ' Use the Sort method to programmatically sort the GridView
    ' control using the sort expression and direction.
    CustomersGridView.Sort(expression, direction)
    
  End Sub
    
</script>

<html xmlns="http://www.w3.org/1999/xhtml" >
  <head runat="server">
    <title>GridView Sort Example</title>
</head>
<body>
    <form id="Form1" runat="server">
        
      <h3>GridView Sort Example</h3>

      <table>
        <tr>
          <td>
             Sort by:
            <asp:dropdownlist ID="SortList1"
              runat="server">
              <asp:listitem Selected="true">CustomerID</asp:listitem>
              <asp:listitem>CompanyName</asp:listitem>
              <asp:listitem>Address</asp:listitem>
              <asp:listitem>City</asp:listitem>
              <asp:listitem>PostalCode</asp:listitem>
              <asp:listitem>Country</asp:listitem>
            </asp:dropdownlist>
          </td>
          <td colspan="2">
             
          </td>
        </tr>
        <tr>
          <td>
            Then by:
              <asp:dropdownlist ID="SortList2"
                runat="server">
                <asp:listitem Selected="true">CustomerID</asp:listitem>
                <asp:listitem>CompanyName</asp:listitem>
                <asp:listitem>Address</asp:listitem>
                <asp:listitem>City</asp:listitem>
                <asp:listitem>PostalCode</asp:listitem>
                <asp:listitem>Country</asp:listitem>
              </asp:dropdownlist>
          </td>
          <td>
             Sort order:      
          </td>
          <td>
            <asp:radiobuttonlist id="DirectionList"
              runat="server">
              <asp:listitem selected="true">Ascending</asp:listitem>
              <asp:listitem>Descending</asp:listitem>
            </asp:radiobuttonlist>
          </td>
        </tr>
      </table>

      <asp:button id="SortButton"
        text="Sort"
        onclick="SortButton_Click" 
        runat="Server"/>  

      <br/>
      <hr/>
      <br/>

      <asp:gridview id="CustomersGridView" 
        datasourceid="CustomersSource" 
        autogeneratecolumns="true"
        emptydatatext="No data available." 
        allowpaging="true" 
        runat="server">
      </asp:gridview>
            
      <!-- This example uses Microsoft SQL Server and connects  -->
      <!-- to the Northwind sample database. Use an ASP.NET     -->
      <!-- expression to retrieve the connection string value   -->
      <!-- from the Web.config file.                            -->
      <asp:sqldatasource id="CustomersSource"
        selectcommand="Select [CustomerID], [CompanyName], [Address], [City], [PostalCode], [Country] From [Customers]"
        connectionstring="<%$ ConnectionStrings:NorthWindConnectionString%>" 
        runat="server"/>
        
    </form>
  </body>
</html>

설명

메서드를 Sort 사용하여 지정된 정렬 식 및 방향을 사용하여 컨트롤을 프로그래밍 방식으로 정렬 GridView 합니다. 정렬 식은 정렬할 열 또는 열을 지정합니다. 여러 열을 정렬하려면 필드 이름의 쉼표로 구분된 목록을 포함하는 정렬 식을 만듭니다. 정렬 방향은 정렬이 오름차순 또는 내림차순으로 수행되는지 여부를 나타냅니다. 이 메서드는 일반적으로 페이지의 다른 컨트롤에서와 같이 컨트롤 외부에서 컨트롤을 정렬 GridView 해야 하는 경우에 사용됩니다. 이 메서드는 컨트롤이 처음 렌더링될 때 프로그래밍 방식으로 기본 정렬 순서를 GridView 설정하는 데도 일반적으로 사용됩니다. 이 메서드를 호출하면 및 Sorting 이벤트도 발생합니다Sorted.

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