FormView.DeleteItem Yöntem
Tanım
Önemli
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Denetimdeki FormView geçerli kaydı veri kaynağından siler.
public:
virtual void DeleteItem();public virtual void DeleteItem();abstract member DeleteItem : unit -> unit
override this.DeleteItem : unit -> unitPublic Overridable Sub DeleteItem ()Örnekler
Aşağıdaki örnekte, veri kaynağından bir DeleteItem denetimdeki FormView geçerli kaydı program aracılığıyla silmek için yönteminin nasıl kullanılacağı gösterilmektedir.
<%@ 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 DeleteButton_Click(Object sender, EventArgs e)
{
// Use the DeleteItem method to programmatically delete
// the current record in the FormView control.
EmployeeFormView.DeleteItem();
}
</script>
<html xmlns="http://www.w3.org/1999/xhtml" >
<head runat="server">
<title>FormView DeleteItem Example</title>
</head>
<body>
<form id="form1" runat="server">
<h3>FormView DeleteItem Example</h3>
<asp:formview id="EmployeeFormView"
datasourceid="EmployeeSource"
allowpaging="true"
datakeynames="EmployeeID"
runat="server">
<itemtemplate>
<table>
<tr>
<td>
<asp:image id="EmployeeImage"
imageurl='<%# Eval("PhotoPath") %>'
alternatetext='<%# Eval("LastName") %>'
runat="server"/>
</td>
<td>
<h3><%# Eval("FirstName") %> <%# Eval("LastName") %></h3>
<%# Eval("Title") %>
</td>
</tr>
</table>
</itemtemplate>
</asp:formview>
<hr/>
<asp:Button id="DeleteButton"
text="Delete Record"
onclick="DeleteButton_Click"
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 DeleteButton_Click(ByVal sender As Object, ByVal e As EventArgs)
' Use the DeleteItem method to programmatically delete
' the current record in the FormView control.
EmployeeFormView.DeleteItem()
End Sub
</script>
<html xmlns="http://www.w3.org/1999/xhtml" >
<head runat="server">
<title>FormView DeleteItem Example</title>
</head>
<body>
<form id="form1" runat="server">
<h3>FormView DeleteItem Example</h3>
<asp:formview id="EmployeeFormView"
datasourceid="EmployeeSource"
allowpaging="true"
datakeynames="EmployeeID"
runat="server">
<itemtemplate>
<table>
<tr>
<td>
<asp:image id="EmployeeImage"
imageurl='<%# Eval("PhotoPath") %>'
alternatetext='<%# Eval("LastName") %>'
runat="server"/>
</td>
<td>
<h3><%# Eval("FirstName") %> <%# Eval("LastName") %></h3>
<%# Eval("Title") %>
</td>
</tr>
</table>
</itemtemplate>
</asp:formview>
<hr/>
<asp:Button id="DeleteButton"
text="Delete Record"
onclick="DeleteButton_Click"
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>
Açıklamalar
Denetimdeki DeleteItem geçerli kaydı FormView program aracılığıyla veri kaynağından silmek için yöntemini kullanın. Bu yöntem genellikle geçerli kaydı denetimin dışından FormView silmeniz gerektiğinde (örneğin, sayfadaki farklı bir denetimden) kullanılır. Bu yöntemin çağrılması ve ItemDeleted olaylarını ItemDeleting da tetikler.
