当前位置: 首页 > 图文教程 > 网络编程 > ASP.NET > 用ado+来删除数据

ASP.NET
ASP.NET 2.0服务器控件开发的基本概念
教你如何实现ASP.NET中网站访问量的统计
.Net基础：ASP.NET网站开发的架构设计
ASP.NET应用技巧：非托管COM组件的使用
.Net基础：ASP.NET中的session存储模式运用
.Net的精髓——XML和SOAP
.NET 4.0改进的介绍
使用.NET正则表达式区分中英文
ASP.NET开发中关于Web标准的几点建议
ASP.NET开发安全问题
谈.NET反射的封装
ASP.NET用户控件说明和添加事件
C#编程实现动态生成Word文档
Asp.net2.0之自定义控件ImageButton
.net程序员，该不该学IL？
利用ajax.dll进行asp.net ajax开发
软件编程走火入魔之：女人的脸 男人的代码
分页那回事?
ASP.NET WebForm页面内容输出方式
浅析ASP.NET的IIS映射

No. « 79 80 81 82 »

技术文章搜索

关键字

ASP.NET 中的 用ado+来删除数据

出处:互联网   整理: 软晨网（RuanChen.com）   发布: 2009-11-03   浏览: 77 ::
收藏到网摘: n/a

<%@ Import Namespace="System.Data" %>
<%@ Import Namespace="System.Data.SQL" %>

<html>

<script language="VB" runat="server">

Dim MyConnection As SQLConnection

Sub Page_Load(Src As Object, E As EventArgs)

MyConnection = New SQLConnection("server=YOUR-SERVER;uid=joeuser;pwd=joeuser;database=pubs")

If Not (IsPostBack)
BindGrid()
End If
End Sub

Sub MyDataGrid_Delete(Sender As Object, E As DataGridCommandEventArgs)

Dim MyCommand As SQLCommand
Dim DeleteCmd As String = "DELETE from Authors where au_id = @Id"

MyCommand = New SQLCommand(DeleteCmd, MyConnection)
MyCommand.Parameters.Add(New SQLParameter("@Id", SQLDataType.VarChar, 11))
MyCommand.Parameters("@Id").Value = MyDataGrid.DataKeys(CInt(E.Item.ItemIndex))

MyCommand.ActiveConnection.Open()

Try
MyCommand.ExecuteNonQuery()
Message.InnerHtml = "<b>Record Deleted</b><br>" & DeleteCmd
Catch Exp As SQLException
Message.InnerHtml = "ERROR: Could not delete record"
Message.Style("color") = "red"
End Try

MyCommand.ActiveConnection.Close()

BindGrid()
End Sub

Sub BindGrid()

Dim DS As DataSet
Dim MyCommand As SQLDataSetCommand
MyCommand = New SQLDataSetCommand("select * from Authors", MyConnection)

DS = new DataSet()
MyCommand.FillDataSet(DS, "Authors")

MyDataGrid.DataSource=DS.Tables("Authors").DefaultView
MyDataGrid.DataBind()
End Sub

</script>

<body style="font: 10pt verdana">

<form runat="server">

<h3><font face="Verdana">Deleting a Row of Data</font></h3>

<span id="Message" MaintainState="false" style="font: arial 11pt;" runat="server"/><p>

<ASP:DataGrid id="MyDataGrid" runat="server"
Width="800"
BackColor="#ccccff"
BorderColor="black"
ShowFooter="false"
CellPadding=3
CellSpacing="0"
Font-Name="Verdana"
Font-Size="8pt"
HeaderStyle-BackColor="#aaaadd"
DataKeyField="au_id"
OnDeleteCommand="MyDataGrid_Delete"
>

<property name="Columns">
<asp:ButtonColumn Text="Delete Author" CommandName="Delete"/>
</property>

</ASP:DataGrid>

</form>

</body>
</html>