次の方法で共有

GridView.Rows プロパティ

  • リファレンス

定義

名前空間:
System.Web.UI.WebControls
アセンブリ:
System.Web.dll

GridViewRow コントロールのデータ行を表す GridView オブジェクトのコレクションを取得します。

public:
 virtual property System::Web::UI::WebControls::GridViewRowCollection ^ Rows { System::Web::UI::WebControls::GridViewRowCollection ^ get(); };
[System.ComponentModel.Browsable(false)]
public virtual System.Web.UI.WebControls.GridViewRowCollection Rows { get; }
[<System.ComponentModel.Browsable(false)>]
member this.Rows : System.Web.UI.WebControls.GridViewRowCollection
Public Overridable ReadOnly Property Rows As GridViewRowCollection

プロパティ値

GridViewRowCollection

GridViewRowCollection コントロール内のすべてのデータ行が格納された GridView。

属性
BrowsableAttribute

例

次の例では、 コレクションを Rows 使用して、コントロールで編集されている行にアクセスする方法を GridView 示します。 行が更新されると、更新が成功したことを示すメッセージが表示されます。


<%@ 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 CustomersGridView_RowCommand(Object sender, GridViewCommandEventArgs e)
  {
    
    // Clear the message label when the user enters edit mode.
    if (e.CommandName == "Edit")
    {
      Message.Text = "";
    }
    
  }

  void CustomersGridView_RowUpdated(Object sender, GridViewUpdatedEventArgs e)
    {
   
        // The update operation was successful. Retrieve the row being edited.
        int index = CustomersGridView.EditIndex;
        GridViewRow row = CustomersGridView.Rows[index];
        
        // Notify the user that the update was successful.
        Message.Text = "Updated record " + row.Cells[1].Text + ".";
    
    }

  void CustomersGridView_RowCancelingEdit(Object sender, GridViewCancelEditEventArgs e)
    {
   
        // The update operation was canceled. Display the appropriate message.
        Message.Text = "Update operation canceled.";
    
    }

</script>

<html xmlns="http://www.w3.org/1999/xhtml" >
  <head runat="server">
    <title>GridView Rows Example</title>
</head>
<body>
    <form id="form1" runat="server">
        
      <h3>GridView Rows Example</h3>
            
      <asp:label id="Message"
        forecolor="Red"
        runat="server"/>
                
      <br/>    
            
      <!-- The GridView control automatically sets the columns     -->
      <!-- specified in the datakeynames property as read-only.    -->
      <!-- No input controls are rendered for these columns in     -->
      <!-- edit mode.                                              -->
      <asp:gridview id="CustomersGridView"
        allowpaging="true" 
        datasourceid="CustomersSqlDataSource" 
        autogeneratecolumns="true"
        autogenerateeditbutton="true"
        datakeynames="CustomerID"
        onrowcommand="CustomersGridView_RowCommand"
        onrowupdated="CustomersGridView_RowUpdated"
        onrowcancelingedit="CustomersGridView_RowCancelingEdit"  
        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="CustomersSqlDataSource"  
        selectcommand="Select [CustomerID], [CompanyName], [Address], [City], [PostalCode], [Country] From [Customers]"
        updatecommand="Update Customers SET CompanyName=@CompanyName, Address=@Address, City=@City, PostalCode=@PostalCode, Country=@Country WHERE (CustomerID = @CustomerID)"
        deletecommand="Delete from Customers where CustomerID = @CustomerID"
        connectionstring="<%$ ConnectionStrings:NorthWindConnectionString%>"
        runat="server">
      </asp:sqldatasource>
            
    </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 CustomersGridView_RowCommand(ByVal sender As Object, ByVal e As GridViewCommandEventArgs)
    
    ' Clear the message label when the user enters edit mode.
    If e.CommandName = "Edit" Then
      Message.Text = ""
    End If
    
  End Sub
  
  Sub CustomersGridView_RowUpdated(ByVal sender As Object, ByVal e As GridViewUpdatedEventArgs)
   
    ' The update operation was successful. Retrieve the row being edited.
    Dim index As Integer = CustomersGridView.EditIndex
    Dim row As GridViewRow = CustomersGridView.Rows(index)
        
    ' Notify the user that the update was successful.
    Message.Text = "Updated record " & row.Cells(1).Text + "."
    
  End Sub

  Sub CustomersGridView_RowCancelingEdit(ByVal sender As Object, ByVal e As GridViewCancelEditEventArgs)
   
    ' The update operation was canceled. Display the appropriate message.
    Message.Text = "Update operation canceled."
    
  End Sub

</script>

<html xmlns="http://www.w3.org/1999/xhtml" >
  <head runat="server">
    <title>GridView Rows Example</title>
</head>
<body>
    <form id="form1" runat="server">
        
      <h3>GridView Rows Example</h3>
            
      <asp:label id="Message"
        forecolor="Red"
        runat="server"/>
                
      <br/>    
            
      <!-- The GridView control automatically sets the columns     -->
      <!-- specified in the datakeynames property as read-only.    -->
      <!-- No input controls are rendered for these columns in     -->
      <!-- edit mode.                                              -->
      <asp:gridview id="CustomersGridView"
        allowpaging="true" 
        datasourceid="CustomersSqlDataSource" 
        autogeneratecolumns="true"
        autogenerateeditbutton="true"
        datakeynames="CustomerID"
        onrowcommand="CustomersGridView_RowCommand"
        onrowupdated="CustomersGridView_RowUpdated"
        onrowcancelingedit="CustomersGridView_RowCancelingEdit"  
        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="CustomersSqlDataSource"  
        selectcommand="Select [CustomerID], [CompanyName], [Address], [City], [PostalCode], [Country] From [Customers]"
        updatecommand="Update Customers SET CompanyName=@CompanyName, Address=@Address, City=@City, PostalCode=@PostalCode, Country=@Country WHERE (CustomerID = @CustomerID)"
        deletecommand="Delete from Customers where CustomerID = @CustomerID"
        connectionstring="<%$ ConnectionStrings:NorthWindConnectionString%>"
        runat="server">
      </asp:sqldatasource>
            
    </form>
  </body>
</html>

注釈

Rowsプロパティ (コレクション) は、データ行をコントロールにGridView格納するために使用されます。 コントロールは GridView 、データ ソース内の各レコードの Rows オブジェクトを作成し、各オブジェクトを GridViewRow コレクションに追加することで、コレクションに自動的に設定します。 このプロパティは、通常、コントロール内の特定の行にアクセスしたり、行のコレクション全体を反復処理したりするために使用されます。

Note

プロパティが RowType に DataControlRowType.DataRow 設定されている行のみがコレクションに Rows 格納されます。 GridViewRowヘッダー、フッター、およびポケットベルの行を表すオブジェクトはコレクションに含まれません。

適用対象

こちらもご覧ください