GridViewRow.RowType Eigenschaft

  • Referenz

Definition

Namespace:
System.Web.UI.WebControls
Assembly:
System.Web.dll

Ruft den Zeilentyp des GridViewRow-Objekts ab.

public:
 virtual property System::Web::UI::WebControls::DataControlRowType RowType { System::Web::UI::WebControls::DataControlRowType get(); void set(System::Web::UI::WebControls::DataControlRowType value); };
public virtual System.Web.UI.WebControls.DataControlRowType RowType { get; set; }
member this.RowType : System.Web.UI.WebControls.DataControlRowType with get, set
Public Overridable Property RowType As DataControlRowType

Eigenschaftswert

DataControlRowType

Einer der DataControlRowType-Werte.

Beispiele

Im folgenden Beispiel wird veranschaulicht, wie Sie die RowType Eigenschaft verwenden, um zu ermitteln, ob eine Zeile erstellt wird, eine Fußzeile ist. Wenn die Zeile eine Fußzeile ist, wird der Wert für die Summe der Spalte in die Fußzeile aktualisiert.


<%@ 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">
  
  // Create a variable to store the order total.
  private Decimal orderTotal = 0.0M;

  void OrderGridView_RowCreated(Object sender, GridViewRowEventArgs e)
  {
    
    // Retrieve the current row. 
    GridViewRow row = e.Row;
    
    // Update the column total if the row being created is
    // a footer row.
    if (row.RowType == DataControlRowType.Footer)
    {
      
      // Get the OrderTotalTotal Label control in the footer row.
      Label total = (Label)e.Row.FindControl("OrderTotalLabel");
      
      // Display the grand total of the order formatted as currency.
      if (total != null)
      {
        total.Text = orderTotal.ToString("c");
      }
      
    }
    
  }
  
  void OrderGridView_RowDataBound(Object sender, GridViewRowEventArgs e)
  {
   
    // Retrieve the current row. 
    GridViewRow row = e.Row;
    
    // Add the field value to the column total if the row being created is
    // a data row. 
    if (row.RowType == DataControlRowType.DataRow)
    {
      
      // Get the cell that contains the item total.
      TableCell cell = e.Row.Cells[2];
      
      // Get the DataBoundLiteralControl control that contains the 
      // data bound value.
      DataBoundLiteralControl boundControl = (DataBoundLiteralControl)cell.Controls[0];
      
      // Remove the '$' character for the type converter to work properly.
      String itemTotal = boundControl.Text.Replace("$",  "");
      
      // Add the total for an item (row) to the order total.
      orderTotal += Convert.ToDecimal(itemTotal);
      
    }
    
  }
  
</script>

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

      <!-- Populate the Columns collection declaratively. -->
      <!-- Create a custom TemplateField column that uses      -->
      <!-- two Label controls to display an author's first and -->
      <!-- last name in the same column.                       -->
      <asp:gridview id="OrderGridView" 
        datasourceid="OrderSqlDataSource" 
        autogeneratecolumns="False" 
        showfooter="true"
        onrowcreated="OrderGridView_RowCreated"
        onrowdatabound="OrderGridView_RowDataBound"   
        runat="server">
                
        <columns>
        
          <asp:boundfield datafield="UnitPrice"
            itemstyle-horizontalalign="Right"
            headertext="Unit Price" 
            dataformatstring="{0:c}"/>
                  
          <asp:boundfield datafield="Quantity"
            itemstyle-horizontalalign="Right"
            headertext="Quantity"/>
                           
          <asp:templatefield headertext="Total"
            itemstyle-horizontalalign="Right"
            footerstyle-horizontalalign="Right"
            footerstyle-backcolor="Blue"
            footerstyle-forecolor="White">
            <itemtemplate>
              <%#Eval("Total", "{0:c}") %>
            </itemtemplate>
            <footertemplate>
              <asp:label id="OrderTotalLabel"
                runat="server"/>
            </footertemplate>
          </asp:templatefield>
                
        </columns>
                
      </asp:gridview>
            
      <!-- This example uses Microsoft SQL Server and connects -->
      <!-- to the Northwind sample database.                   -->
      <asp:sqldatasource id="OrderSqlDataSource"  
        selectcommand="SELECT [OrderID], [UnitPrice], [Quantity], [UnitPrice]*[Quantity] As [Total] FROM [order details] WHERE [OrderID]=10248"
        connectionstring="server=localhost;database=northwind;integrated security=SSPI"
        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">
  
  ' Create a variable to store the order total.
  Private orderTotal As Decimal = 0.0

  Sub OrderGridView_RowCreated(ByVal sender As Object, ByVal e As GridViewRowEventArgs)
    
    ' Retrieve the current row.
    Dim row As GridViewRow = e.Row
    
    ' Update the column total if the row being created is
    ' a footer row.
    If row.RowType = DataControlRowType.Footer Then
          
      ' Get the OrderTotalTotal Label control in the footer row.
      Dim total As Label = CType(e.Row.FindControl("OrderTotalLabel"), Label)
      
      ' Display the grand total of the order formatted as currency.
      If (Not total Is Nothing)
      
        total.Text = orderTotal.ToString("c")
      
      End If 
      
    End If
    
  End Sub
  
  Sub OrderGridView_RowDataBound(ByVal sender As Object, ByVal e As GridViewRowEventArgs)
    
    ' Retrieve the current row.
    Dim row As GridViewRow = e.Row
    
    ' Add the field value to the column total if the row being created is
    ' a data row.
    If row.RowType = DataControlRowType.DataRow Then
      
      ' Get the cell that contains the item total.
      Dim cell As TableCell = e.Row.Cells(2)
      
      ' Get the DataBoundLiteralControl control that contains the 
      ' data bound value.
      Dim boundControl As DataBoundLiteralControl = CType(cell.Controls(0), DataBoundLiteralControl)
      
      ' Remove the '$' character for the type converter to work properly.
      Dim itemTotal As String = boundControl.Text.Replace("$",  "")
      
      ' Add the total for an item (row) to the order total.
      orderTotal += Convert.ToDecimal(itemTotal)
      
    End If
    
  End Sub
  
</script>

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

      <!-- Populate the Columns collection declaratively. -->
      <!-- Create a custom TemplateField column that uses      -->
      <!-- two Label controls to display an author's first and -->
      <!-- last name in the same column.                       -->
      <asp:gridview id="OrderGridView" 
        datasourceid="OrderSqlDataSource" 
        autogeneratecolumns="False" 
        showfooter="true"
        onrowcreated="OrderGridView_RowCreated"
        onrowdatabound="OrderGridView_RowDataBound"   
        runat="server">
                
        <columns>
        
          <asp:boundfield datafield="UnitPrice"
            itemstyle-horizontalalign="Right"
            headertext="Unit Price" 
            dataformatstring="{0:c}"/>
                  
          <asp:boundfield datafield="Quantity"
            itemstyle-horizontalalign="Right"
            headertext="Quantity"/>
                           
          <asp:templatefield headertext="Total"
            itemstyle-horizontalalign="Right"
            footerstyle-horizontalalign="Right"
            footerstyle-backcolor="Blue"
            footerstyle-forecolor="White">
            <itemtemplate>
              <%#Eval("Total", "{0:c}") %>
            </itemtemplate>
            <footertemplate>
              <asp:label id="OrderTotalLabel"
                runat="server"/>
            </footertemplate>
          </asp:templatefield>
                
        </columns>
                
      </asp:gridview>
            
      <!-- This example uses Microsoft SQL Server and connects -->
      <!-- to the Northwind sample database.                   -->
      <asp:sqldatasource id="OrderSqlDataSource"  
        selectcommand="SELECT [OrderID], [UnitPrice], [Quantity], [UnitPrice]*[Quantity] As [Total] FROM [order details] WHERE [OrderID]=10248"
        connectionstring="server=localhost;database=northwind;integrated security=SSPI"
        runat="server">
      </asp:sqldatasource>
            
    </form>
  </body>
</html>

Hinweise

Verwenden Sie die RowType Eigenschaft, um den Typ der Zeile zu bestimmen, die das GridViewRow Objekt darstellt. In der folgenden Tabelle werden die unterschiedlichen Zeilentypwerte mithilfe der DataControlRowType Aufzählung aufgelistet.

Zeilentyp BESCHREIBUNG
DataRow Eine Datenzeile im GridView Steuerelement.
Footer Die Fußzeile im GridView Steuerelement.
Header Die Kopfzeile im GridView Steuerelement.
EmptyDataRow Die leere Zeile im GridView Steuerelement. Die leere Zeile wird angezeigt, wenn GridView das Steuerelement keine Datensätze enthält, die angezeigt werden sollen.
Pager Eine Pagerzeile im GridView Steuerelement.
Separator Eine Trennzeichenzeile im GridView Steuerelement.

Diese Eigenschaft wird häufig verwendet, um den Typ einer Zeile zu bestimmen, bevor Sie einen Vorgang ausführen.

Gilt für

Siehe auch