asp.net DataGrid的例子 DataGrid中删除记录

发布时间:2020-09-03编辑:脚本学堂
本文分享一个asp.net DataGrid中删除记录的例子,学习下DataGrid的用法,有需要的朋友作个参考。

asp.net实例之DataGrid中删除记录,代码如下:
 

复制代码 代码示例:
<%@ Page Language=VB Debug=true %>
<%@ Import Namespace="System.Data" %>
<%@ Import Namespace="System.Data.OLEDB" %>
<script runat=server>
Sub Page_Load(ByVal Sender as Object, ByVal E as EventArgs)
    If Not IsPostBack Then
        BuildDataList
    End If
End Sub
Sub Click_Grid(ByVal Sender as Object, ByVal E as DataGridCommandEventArgs)
    Dim TheID as String
    TheID = E.Item.Cells(1).Text
    Dim DBConn as OleDbConnection
    Dim DBDelete As New OleDbCommand
    DBConn = New OleDbConnection( _
        "PROVIDER=Microsoft.Jet.OLEDB.4.0;" _
        & "DATA SOURCE=" _
        & Server.MapPath("EmployeeDatabase.mdb;"))
    DBDelete.CommandText = "Delete From Employee Where " _
        & "ID = " & TheID
    DBDelete.Connection = DBConn
    DBDelete.Connection.Open
    DBDelete.ExecuteNonQuery()
    DBConn.Close
    BuildDataList
End Sub
Sub BuildDataList ()
        Dim DBConn as OleDbConnection
        Dim DBCommand As OleDbDataAdapter
        Dim DSPageData as New DataSet
        DBConn = New OleDbConnection( _
            "PROVIDER=Microsoft.Jet.OLEDB.4.0;" _
            & "DATA SOURCE=" _
            & Server.MapPath("EmployeeDatabase.mdb;"))
        DBCommand = New OleDbDataAdapter _
            ("Select LastName & ', ' & FirstName " _
            & "as FullName, ID From Employee " _
            & "Order By LastName, FirstName", DBConn)
        DBCommand.Fill(DSPageData, _
            "Employee")
        dgEmps.DataSource = _
            DSPageData.Tables("Employee").DefaultView
        dgEmps.DataBind()
End Sub
</SCRIPT>
<HTML>
<HEAD>
<TITLE>从DataGrid控件中移除行-www.jb200.com</TITLE>
</HEAD>
<Body LEFTMARGIN="40">
<form runat="server">
<BR><BR>
<asp:Label
    id="lblMessage"
    runat="server"
/>
<BR><BR>
<asp:datagrid
    id="dgEmps"
    runat="server"
    autogeneratecolumns="false"
    onitemcommand="Click_Grid"
>
    <columns>
        <asp:boundcolumn
            HeaderText="Full Name"
            DataField="FullName"
        />
        <asp:boundcolumn
            DataField="ID"
            Visible=False
        />
        <asp:buttoncolumn
            HeaderText="Click to Delete"
            ButtonType="PushButton"
            Text="Delete Record"
        />
    </columns>
</asp:datagrid>
</form>
</BODY>
</HTML>