FormViewDeleteEventArgs.RowIndex Proprietà
Definizione
Importante
Alcune informazioni sono relative alla release non definitiva del prodotto, che potrebbe subire modifiche significative prima della release definitiva. Microsoft non riconosce alcuna garanzia, espressa o implicita, in merito alle informazioni qui fornite.
Ottiene l'indice del record da eliminare dall'origine dati.
public:
property int RowIndex { int get(); };public int RowIndex { get; }member this.RowIndex : intPublic ReadOnly Property RowIndex As IntegerValore della proprietà
L'indice del record da eliminare dall'origine dati.
Esempio
Nell'esempio seguente viene illustrato come usare la RowIndex proprietà per determinare l'indice del record eliminato.
<%@ 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 EmployeeFormView_ItemDeleting(Object sender, FormViewDeleteEventArgs e)
{
// Get the employee ID, name, and job title from the Keys and Values
// properties.
String keyValue = e.Keys["EmployeeID"].ToString();
String employeeName = e.Values["FirstName"].ToString() +
" " + e.Values["LastName"].ToString();
String title = e.Values["Title"].ToString();
// Cancel the delete operation if the user attempts to
// delete a protected record. In this example, records for
// employees with a "Sales Manager" job title are protected.
if (title.Equals("Sales Manager"))
{
e.Cancel = true;
MessageLabel.Text = "You cannot delete record " +
e.RowIndex.ToString() + ". " + employeeName +
" (Employee Number " + keyValue.ToString() +
") is protected.";
}
}
</script>
<html xmlns="http://www.w3.org/1999/xhtml" >
<head runat="server">
<title>FormViewDeleteEventArgs Example</title>
</head>
<body>
<form id="form1" runat="server">
<h3>FormViewDeleteEventArgs Example</h3>
<asp:formview id="EmployeeFormView"
datasourceid="EmployeeSource"
allowpaging="true"
datakeynames="EmployeeID"
onitemdeleting="EmployeeFormView_ItemDeleting"
runat="server">
<itemtemplate>
<table>
<tr>
<td>
<asp:image id="EmployeeImage"
imageurl='<%# Eval("PhotoPath") %>'
alternatetext='<%# Eval("LastName") %>'
runat="server"/>
</td>
<td>
<asp:label id="FirstNameLabel"
text='<%#Bind("FirstName")%>'
font-bold="true"
runat="server"/>
<asp:label id="LastNameLabel"
text='<%#Bind("LastName")%>'
font-bold="true"
runat="server"/>
<br/>
<asp:label id="TitleLabel"
text='<%#Bind("Title")%>'
runat="server"/>
</td>
</tr>
<tr>
<td colspan="2">
<asp:button id="DeleteButton"
text="Delete Record"
commandname="Delete"
runat="server" />
</td>
</tr>
</table>
</itemtemplate>
</asp:formview>
<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="EmployeeSource"
selectcommand="Select [EmployeeID], [LastName], [FirstName], [Title], [PhotoPath] From [Employees]"
deletecommand="Delete [Employees] Where [EmployeeID]=@EmployeeID"
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 EmployeeFormView_ItemDeleting(ByVal sender As Object, ByVal e As FormViewDeleteEventArgs)
' Get the employee ID, name, and job title from the Keys and Values
' properties.
Dim keyValue As String = e.Keys("EmployeeID").ToString()
Dim employeeName As String = e.Values("FirstName").ToString() & _
" " & e.Values("LastName").ToString()
Dim title As String = e.Values("Title").ToString()
' Cancel the delete operation if the user attempts to
' delete a protected record. In this example, records for
' employees with a "Sales Manager" job title are protected.
If Title.Equals("Sales Manager") Then
e.Cancel = True
MessageLabel.Text = "You cannot delete record " & _
e.RowIndex.ToString() & ". " & employeeName & _
" (Employee Number " & keyValue.ToString() & _
") is protected."
End If
End Sub
</script>
<html xmlns="http://www.w3.org/1999/xhtml" >
<head runat="server">
<title>FormViewDeleteEventArgs Example</title>
</head>
<body>
<form id="form1" runat="server">
<h3>FormViewDeleteEventArgs Example</h3>
<asp:formview id="EmployeeFormView"
datasourceid="EmployeeSource"
allowpaging="true"
datakeynames="EmployeeID"
onitemdeleting="EmployeeFormView_ItemDeleting"
runat="server">
<itemtemplate>
<table>
<tr>
<td>
<asp:image id="EmployeeImage"
imageurl='<%# Eval("PhotoPath") %>'
alternatetext='<%# Eval("LastName") %>'
runat="server"/>
</td>
<td>
<asp:label id="FirstNameLabel"
text='<%#Bind("FirstName")%>'
font-bold="true"
runat="server"/>
<asp:label id="LastNameLabel"
text='<%#Bind("LastName")%>'
font-bold="true"
runat="server"/>
<br/>
<asp:label id="TitleLabel"
text='<%#Bind("Title")%>'
runat="server"/>
</td>
</tr>
<tr>
<td colspan="2">
<asp:button id="DeleteButton"
text="Delete Record"
commandname="Delete"
runat="server" />
</td>
</tr>
</table>
</itemtemplate>
</asp:formview>
<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="EmployeeSource"
selectcommand="Select [EmployeeID], [LastName], [FirstName], [Title], [PhotoPath] From [Employees]"
deletecommand="Delete [Employees] Where [EmployeeID]=@EmployeeID"
connectionstring="<%$ ConnectionStrings:NorthWindConnectionString%>"
runat="server"/>
</form>
</body>
</html>
Commenti
Utilizzare la RowIndex proprietà per determinare l'indice del record eliminato dall'origine dati. L'indice di riga corrisponde all'indice di pagina del record eliminato.