|
Dieser Artikel wurde maschinell übersetzt. Bewegen Sie den Mauszeiger über die Sätze im Artikel, um den Originaltext anzuzeigen. Weitere Informationen
|
Übersetzung
Original
|
DetailsViewDeleteEventHandler-Delegat
Namespace: System.Web.UI.WebControls
Assembly: System.Web (in System.Web.dll)
public delegate void DetailsViewDeleteEventHandler( Object sender, DetailsViewDeleteEventArgs e )
Parameter
- sender
- Typ: System.Object
Die Quelle des Ereignisses.
- e
- Typ: System.Web.UI.WebControls.DetailsViewDeleteEventArgs
DetailsViewDeleteEventArgs , das die Ereignisdaten enthält.
<%@ 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 Page_Load(Object sender, EventArgs e) { // Create a new DetailsView object. DetailsView customerDetailsView = new DetailsView(); // Set the DetailsView object's properties. customerDetailsView.ID = "CustomerDetailsView"; customerDetailsView.DataSourceID = "DetailsViewSource"; customerDetailsView.AutoGenerateRows = true; customerDetailsView.AutoGenerateDeleteButton = true; customerDetailsView.AllowPaging = true; customerDetailsView.PagerSettings.Mode = PagerButtons.NextPrevious; customerDetailsView.DataKeyNames = new String[1] { "CustomerID" }; // Programmatically register the event-handling method // for the ItemDeleting event of a DetailsView control. customerDetailsView.ItemDeleting += new DetailsViewDeleteEventHandler(this.CustomerDetailsView_ItemDeleting); // Add the DetailsView object to the Controls collection // of the PlaceHolder control. DetailsViewPlaceHolder.Controls.Add(customerDetailsView); } void CustomerDetailsView_ItemDeleting(Object sender, DetailsViewDeleteEventArgs e) { // Get customer ID and name from the Keys and Values // properties. String keyValue = e.Keys["CustomerID"].ToString(); String customerName = e.Values["CompanyName"].ToString(); // Cancel the delete operation if the user attempts to // delete protected record. In this example, records // with a customer ID that starts with with "A" cannot // be deleted. if (keyValue.StartsWith("A")) { e.Cancel = true; MessageLabel.Text = "You cannot delete " + customerName + ". This customer is protected."; } else { MessageLabel.Text = "Row " + e.RowIndex.ToString() + " deleted."; } } </script> <html xmlns="http://www.w3.org/1999/xhtml" > <head runat="server"> <title>DetailsViewDeleteEventHandler Example</title> </head> <body> <form id="form1" runat="server"> <h3>DetailsViewDeleteEventHandler Example</h3> <!-- Use a PlaceHolder control as the container for the --> <!-- dynamically generated DetailsView control. --> <asp:PlaceHolder id="DetailsViewPlaceHolder" runat="server"/> <br/><br/> <asp:label id="MessageLabel" forecolor="Red" runat="server"/> <!-- 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="DetailsViewSource" selectcommand="Select [CustomerID], [CompanyName], [Address], [City], [PostalCode], [Country] From [Customers]" deletecommand="Delete [Customers] Where [CustomerID]=@CustomerID" connectionstring= "<%$ ConnectionStrings:NorthWindConnectionString%>" runat="server"/> </form> </body> </html>
<%@ 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 CustomerDetailsView_ItemDeleting(Object sender, DetailsViewDeleteEventArgs e) { // Get customer ID and name from the Keys and Values // properties. String keyValue = e.Keys["CustomerID"].ToString(); String customerName = e.Values["CompanyName"].ToString(); // Cancel the delete operation if the user attempts to // delete protected record. In this example, records // with a customer ID that starts with with "A" cannot // be deleted. if (keyValue.StartsWith("A")) { e.Cancel = true; MessageLabel.Text = "You cannot delete " + customerName + ". This customer is protected."; } else { MessageLabel.Text = "Row " + e.RowIndex.ToString() + " deleted."; } } </script> <html xmlns="http://www.w3.org/1999/xhtml" > <head runat="server"> <title>DetailsViewDeleteEventHandler Example</title> </head> <body> <form id="form1" runat="server"> <h3>DetailsViewDeleteEventHandler Example</h3> <asp:detailsview id="CustomerDetailsView" datasourceid="DetailsViewSource" autogeneraterows="true" autogeneratedeletebutton="true" allowpaging="true" datakeynames="CustomerID" onitemdeleting="CustomerDetailsView_ItemDeleting" runat="server"> <pagersettings mode="NextPrevious"/> </asp:detailsview> <br/><br/> <asp:label id="MessageLabel" forecolor="Red" runat="server"/> <!-- 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="DetailsViewSource" selectcommand="Select [CustomerID], [CompanyName], [Address], [City], [PostalCode], [Country] From [Customers]" deletecommand="Delete [Customers] Where [CustomerID]=@CustomerID" connectionstring= "<%$ ConnectionStrings:NorthWindConnectionString%>" runat="server"/> </form> </body> </html>
Windows 8, Windows Server 2012, Windows 7, Windows Vista SP2, Windows Server 2008 (Server Core-Rolle wird nicht unterstützt), Windows Server 2008 R2 (Server Core-Rolle wird mit SP1 oder höher unterstützt; Itanium wird nicht unterstützt)
.NET Framework unterstützt nicht alle Versionen sämtlicher Plattformen. Eine Liste der unterstützten Versionen finden Sie unter Systemanforderungen für .NET Framework.
