GridView.DeleteRow(Int32) 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。
刪除資料來源中指定索引的資料錄。
public:
virtual void DeleteRow(int rowIndex);public virtual void DeleteRow (int rowIndex);abstract member DeleteRow : int -> unit
override this.DeleteRow : int -> unitPublic Overridable Sub DeleteRow (rowIndex As Integer)參數
- rowIndex
- Int32
要刪除的資料列索引。
例外狀況
GridView 控制項未繫結至資料來源控制項。
GridView 控制項所繫結至的資料來源控制項不支援刪除作業，或是沒有為資料來源定義刪除命令。
範例
下列範例示範如何使用 DeleteRow 方法來以程式設計方式刪除 控制項中的 GridView 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 DeleteRowButton_Click(Object sender, EventArgs e)
{
// Programmatically delete the selected record.
CustomersGridView.DeleteRow(CustomersGridView.SelectedIndex);
}
</script>
<html xmlns="http://www.w3.org/1999/xhtml" >
<head runat="server">
<title>GridView DeleteRow Example</title>
</head>
<body>
<form id="form1" runat="server">
<h3>GridView DeleteRow Example</h3>
<asp:button id="DeleteRowButton"
text="Delete Record"
onclick="DeleteRowButton_Click"
runat="server"/>
<hr/>
<asp:gridview id="CustomersGridView"
allowpaging="true"
datasourceid="CustomersSqlDataSource"
autogeneratecolumns="true"
autogenerateselectbutton="true"
datakeynames="CustomerID"
selectedindex="0"
runat="server">
<selectedrowstyle BackColor="lightblue"/>
</asp:gridview>
<!-- 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="CustomersSqlDataSource"
selectcommand="Select [CustomerID], [CompanyName], [Address], [City], [PostalCode], [Country] From [Customers]"
deletecommand="Delete from Customers where CustomerID = @CustomerID"
connectionstring="<%$ ConnectionStrings:NorthWindConnectionString%>"
runat="server">
</asp:sqldatasource>
</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 DeleteRowButton_Click(sender As Object, e As EventArgs)
' Programmatically delete the selected record.
CustomersGridView.DeleteRow(CustomersGridView.SelectedIndex)
End Sub
</script>
<html xmlns="http://www.w3.org/1999/xhtml" >
<head runat="server">
<title>GridView DeleteRow Example</title>
</head>
<body>
<form id="form1" runat="server">
<h3>GridView DeleteRow Example</h3>
<asp:button id="DeleteRowButton"
text="Delete Record"
onclick="DeleteRowButton_Click"
runat="server"/>
<hr/>
<asp:gridview id="CustomersGridView"
allowpaging="true"
datasourceid="CustomersSqlDataSource"
autogeneratecolumns="true"
autogenerateselectbutton="true"
datakeynames="CustomerID"
selectedindex="0"
runat="server">
<selectedrowstyle BackColor="lightblue"/>
</asp:gridview>
<!-- 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="CustomersSqlDataSource"
selectcommand="Select [CustomerID], [CompanyName], [Address], [City], [PostalCode], [Country] From [Customers]"
deletecommand="Delete from Customers where CustomerID = @CustomerID"
connectionstring="<%$ ConnectionStrings:NorthWindConnectionString%>"
runat="server">
</asp:sqldatasource>
</form>
</body>
</html>
備註
DeleteRow使用 方法，以程式設計方式從資料來源刪除指定索引處的記錄。 當您需要從控制項外部 GridView 刪除記錄時，通常會使用這個方法，例如從頁面上的不同控制項刪除記錄。 呼叫這個方法也會引發 RowDeleted 和 RowDeleting 事件。
