FormView.DeleteItem 方法
定義
重要
部分資訊涉及發行前產品，在發行之前可能會有大幅修改。 Microsoft 對此處提供的資訊，不做任何明確或隱含的瑕疵擔保。
從資料來源刪除 FormView 控制項中目前的資料錄。
public:
virtual void DeleteItem();public virtual void DeleteItem ();abstract member DeleteItem : unit -> unit
override this.DeleteItem : unit -> unitPublic Overridable Sub DeleteItem ()範例
下列範例示範如何使用 DeleteItem 方法，以程式設計方式從資料來源刪除 控制項中的 FormView 目前記錄。
<%@ 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>
備註
DeleteItem使用 方法，以程式設計方式從資料來源刪除 控制項中的 FormView 目前記錄。 當您需要從控制項外部 FormView 刪除目前記錄時，通常會使用這個方法，例如從頁面上的不同控制項刪除。 呼叫這個方法也會引發 ItemDeleted 和 ItemDeleting 事件。
