DetailsViewInsertedEventArgs 类
定义
重要
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为 ItemInserted 事件提供数据。
public ref class DetailsViewInsertedEventArgs : EventArgspublic class DetailsViewInsertedEventArgs : EventArgstype DetailsViewInsertedEventArgs = class
inherit EventArgsPublic Class DetailsViewInsertedEventArgs
Inherits EventArgs- 继承
示例
下面的代码示例演示如何使用 DetailsViewInsertedEventArgs 传递给 事件的事件处理程序 ItemInserted 的对象来确定插入操作期间是否发生了异常。
<%@ 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>
注解
DetailsView当“插入”按钮 (按钮属性设置为“插入”的按钮CommandName时，控件将引发 ItemInserted 该事件) 在控件中单击，但在控件插入记录之后DetailsView。 这允许你提供一个事件处理程序，用于执行自定义例程，例如，每当发生此事件时检查插入操作的结果。
对象 DetailsViewInsertedEventArgs 将传递给事件处理程序，这样就可以确定受影响的记录数以及可能发生的任何异常。 若要确定受插入操作影响的记录数，请使用 AffectedRows 属性。 Exception使用 属性可确定是否发生任何异常。 还可以通过设置 属性来指示是否在事件处理程序中处理了异常 ExceptionHandled 。 如果需要访问插入的记录的值，请使用 Values 属性。
默认情况下，控件在 DetailsView 插入操作后返回到 属性指定的 DefaultMode 模式。 若要使 DetailsView 控件保持插入模式，请将 KeepInInsertMode 属性设置为 true。
有关如何处理事件的详细信息，请参阅 处理和引发事件。
有关 DetailsViewDeletedEventArgs 类的实例的初始属性值列表，请参见 DetailsViewDeletedEventArgs 构造函数。
构造函数
| DetailsViewInsertedEventArgs(Int32, Exception) |
初始化 DetailsViewInsertedEventArgs 类的新实例。 |
属性
| AffectedRows |
获取受插入操作影响的行数。 |
| Exception |
获取插入操作过程中引发的异常（如果引发）。 |
| ExceptionHandled |
获取或设置一个值，该值指示在插入操作过程中所引发的异常是否已在事件处理程序中得到处理。 |
| KeepInInsertMode |
获取或设置一个值，该值指示在插入操作完成后 DetailsView 控件是否仍保持插入模式。 |
| Values |
获取包含已插入记录所对应的字段名/值对的字典。 |
方法
| Equals(Object) |
确定指定对象是否等于当前对象。 (继承自 Object) |
| GetHashCode() |
作为默认哈希函数。 (继承自 Object) |
| GetType() |
获取当前实例的 Type。 (继承自 Object) |
| MemberwiseClone() |
创建当前 Object 的浅表副本。 (继承自 Object) |
| ToString() |
返回表示当前对象的字符串。 (继承自 Object) |
