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
AspNetPager与Socut.Data使用方法
asp.net UpdaeProgress的简单用法
asp.net ajaxControlToolkit ValidatorCalloutExtender的简单用法
asp.net 简易生成注册码（数字+大小写字母）
asp.net中利用ashx实现图片防盗链代码
ASP.NET程序中常用代码汇总
ASP.NET 2.0/3.5中直接操作Gridview控件插入新记录
ASP.NET Ajax级联DropDownList实现代码
ASP.NET 2.0写无限级下拉菜单
asp.net Web Services上传和下载文件(完整代码)
asp.net DataGrid控件中弹出详细信息窗口
Asp.NET 多层登陆实现代码
利用Asp.Net回调机制实现进度条
ASP.NET Ref和Out关键字区别分析
Javascript调用Webservice的多种方法
.Net下的签名与混淆图文分析
.Net Compact Framework开发小技巧 推荐
.Net连接Oracle数据库的实现代码
js获取.aspx页面里面的服务器控件和.ascx中的服务器控件值
asp.net下 jquery jason 高效传输数据

No. « 95 96 97 98 »

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: 45 ::
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>