DetailsViewInsertedEventArgs 類別
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。
提供 ItemInserted 事件的資料。
public ref class DetailsViewInsertedEventArgs : EventArgs
public class DetailsViewInsertedEventArgs : EventArgs
type DetailsViewInsertedEventArgs = class
inherit EventArgs
Public Class DetailsViewInsertedEventArgs
Inherits EventArgs
- 繼承
範例
下列程式碼範例示範如何使用 DetailsViewInsertedEventArgs 傳遞給事件的事件處理常式 ItemInserted 的物件,來判斷插入作業期間是否發生例外狀況。
<%@ 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_ItemInserted(Object sender,
DetailsViewInsertedEventArgs e)
{
// Use the Exception property to determine whether an exception
// occurred during the insert operation.
if (e.Exception == null && e.AffectedRows == 1)
{
// Use the Values property to get the value entered by
// the user for the CompanyName field.
String name = e.Values["CompanyName"].ToString();
// Display a confirmation message.
MessageLabel.Text = name + " added successfully. ";
}
else
{
// Insert the code to handle the exception.
MessageLabel.Text = e.Exception.Message;
// Use the ExceptionHandled property to indicate that the
// exception is already handled.
e.ExceptionHandled = true;
// When an exception occurs, keep the DetailsView
// control in insert mode.
e.KeepInInsertMode = true;
}
}
</script>
<html xmlns="http://www.w3.org/1999/xhtml" >
<head runat="server">
<title>DetailsViewInsertedEventArgs Example</title>
</head>
<body>
<form id="form1" runat="server">
<h3>DetailsViewInsertedEventArgs Example</h3>
<asp:detailsview id="CustomerDetailsView"
datasourceid="DetailsViewSource"
datakeynames="CustomerID"
autogenerateinsertbutton="true"
autogeneraterows="true"
allowpaging="true"
oniteminserted="CustomerDetailsView_ItemInserted"
runat="server">
<fieldheaderstyle backcolor="Navy"
forecolor="White"/>
</asp:detailsview>
<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]"
insertcommand="INSERT INTO [Customers]([CustomerID],
[CompanyName], [Address], [City], [PostalCode],
[Country]) VALUES (@CustomerID, @CompanyName, @Address,
@City, @PostalCode, @Country)"
connectionstring=
"<%$ ConnectionStrings:NorthWindConnectionString%>"
runat="server"/>
</form>
</body>
</html>
<%@ Page language="VB" autoeventwireup="false" %>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN"
"http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<script runat="server">
Sub CustomerDetailsView_ItemInserted(ByVal sender As Object, _
ByVal e As DetailsViewInsertedEventArgs) _
Handles CustomerDetailsView.ItemInserted
' Use the Exception property to determine whether an exception
' occurred during the insert operation.
If e.Exception Is Nothing And e.AffectedRows = 1 Then
' Use the Values property to get the value entered by
' the user for the CompanyName field.
Dim name As String = e.Values("CompanyName").ToString()
' Display a confirmation message.
MessageLabel.Text = name & " added successfully. "
Else
' Insert the code to handle the exception.
MessageLabel.Text = e.Exception.Message
' Use the ExceptionHandled property to indicate that the
' exception is already handled.
e.ExceptionHandled = True
' When an exception occurs, keep the DetailsView
' control in insert mode.
e.KeepInInsertMode = True
End If
End Sub
</script>
<html xmlns="http://www.w3.org/1999/xhtml" >
<head runat="server">
<title>DetailsViewInsertedEventArgs Example</title>
</head>
<body>
<form id="form1" runat="server">
<h3>DetailsViewInsertedEventArgs Example</h3>
<asp:detailsview id="CustomerDetailsView"
datasourceid="DetailsViewSource"
datakeynames="CustomerID"
autogenerateinsertbutton="true"
autogeneraterows="true"
allowpaging="true"
runat="server">
<fieldheaderstyle backcolor="Navy"
forecolor="White"/>
</asp:detailsview>
<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]"
insertcommand="INSERT INTO [Customers]([CustomerID], [CompanyName],
[Address], [City], [PostalCode], [Country])
VALUES (@CustomerID, @CompanyName, @Address, @City,
@PostalCode, @Country)"
connectionstring=
"<%$ ConnectionStrings:NorthWindConnectionString%>"
runat="server"/>
</form>
</body>
</html>
備註
DetailsView控制項 ItemInserted 會在按一下控制項內的 [插入] 按鈕 (其屬性設定為 「Insert」) 按鈕 CommandName
時引發事件,但在控制項插入記錄之後 DetailsView 。 這可讓您提供事件處理常式來執行自訂常式,例如每當發生此事件時檢查插入作業的結果。
DetailsViewInsertedEventArgs物件會傳遞至事件處理常式,可讓您判斷受影響的記錄數目,以及可能發生的任何例外狀況。 若要判斷插入作業所影響的記錄數目,請使用 AffectedRows 屬性。 Exception使用 屬性來判斷是否發生任何例外狀況。 您也可以藉由設定 ExceptionHandled 屬性,指出是否在事件處理常式中處理例外狀況。 如果您需要存取插入記錄的值,請使用 Values 屬性。
根據預設, DetailsView 控制項會在插入作業之後傳回 屬性所 DefaultMode 指定的模式。 若要讓控制項保持 DetailsView 插入模式,請將 KeepInInsertMode 屬性設定為 true
。
如需如何處理事件的詳細資訊,請參閱 處理和引發事件。
如需 DetailsViewDeletedEventArgs 類別之執行個體的初始屬性值清單,請參閱 DetailsViewDeletedEventArgs 建構函式。
建構函式
DetailsViewInsertedEventArgs(Int32, Exception) |
初始化 DetailsViewInsertedEventArgs 類別的新執行個體。 |
屬性
AffectedRows |
取得插入作業所影響的資料列數目。 |
Exception |
取得插入作業中引發的例外狀況 (如果有的話)。 |
ExceptionHandled |
取得或設定值,指出是否在事件處理常式中處理插入作業中引發的例外狀況。 |
KeepInInsertMode |
取得或設定值,指出 DetailsView 控制項是否在插入作業後停留在插入模式中。 |
Values |
取得字典,其包含已插入之資料錄的欄位名稱/值組。 |
方法
Equals(Object) |
判斷指定的物件是否等於目前的物件。 (繼承來源 Object) |
GetHashCode() |
做為預設雜湊函式。 (繼承來源 Object) |
GetType() |
取得目前執行個體的 Type。 (繼承來源 Object) |
MemberwiseClone() |
建立目前 Object 的淺層複製。 (繼承來源 Object) |
ToString() |
傳回代表目前物件的字串。 (繼承來源 Object) |