（ 13 ）定义“ blogupdate_Click ”过程，用于响应【更新】链接按钮的“ OnClick ”事件。

Sub blogupdate_Click(ByVal sender As Object, ByVal e As System.EventArgs)
Dim cpConn, Cpstring As String
Dim conn As OleDbConnection
Dim Cpadapter As OleDbDataAdapter
Dim Cpdat As System.Data.DataSet
Dim dt As DataTable
cpConn = "Provider=Microsoft.Jet.OLEDB.4.0;Data Source=" & server.MapPath ("dat\bad.mdb")
conn = New OledbConnection(cpConn)
Cpstring = "select * from myblog where myblogID=" & MyblogData. FieldValue("myblogID", Nothing)
Cpadapter = New OleDbDataAdapter(Cpstring, conn)
Dim yy As OleDbCommandBuilder = New OleDbCommandBuilder(Cpadapter)
Cpdat = New System.Data.DataSet()
Cpadapter.Fill(Cpdat, "myblog")
dt = Cpdat.Tables("myblog")
dt.Rows(0)("myblog") = myblogreplace.Text
dt.Rows(0)("title") = titlereplace.Text
Cpadapter.Update(Cpdat, "myblog")
conn.Close()
panel1.Visible = True
Response.Redirect(Request.ServerVariables("SCRIPT_NAME"))
End Sub

　　（读者可打开【光盘】｜【源文件】｜【实例 92 】｜【 92.6.txt 】文件，直接复制）

　　（ 14 ）定义“ blogdelet_Click ”过程，用于响应【删除】链接按钮的“ OnClick ”事件。

Sub blogdelet_Click(ByVal sender As Object, ByVal e As System.EventArgs)
Dim conn As OleDbConnection
Dim cpConn, Cpstring As String
Dim CpCommand As New OleDbCommand
cpConn = "Provider=Microsoft.Jet.OLEDB.4.0;Data Source=" & Server.MapPath
("dat\bad.mdb")
conn = New OleDbConnection(cpConn)
conn.Open()
Cpstring = "delete from myblog where myblogID=" & MyblogData.FieldValue
("myblogID", Nothing)
CpCommand = New OleDbCommand(Cpstring, conn)
CpCommand.ExecuteNonQuery()
conn.Close()
panel1.Visible = True
Response.Redirect(Request.ServerVariables("SCRIPT_NAME"))
End Sub

　　（读者可打开【光盘】｜【源文件】｜【实例 92 】｜【 92.7.txt 】文件，直接复制）

　　（ 15 ）定义“ blogcancel_Click ”过程，用于响应【取消】链接按钮的“ OnClick ”事件。

Sub blogcancel_Click(ByVal sender As Object, ByVal e As System.EventArgs)
panel1.Visible = True
panel2.Visible = False
End Sub

　　（读者可打开【光盘】｜【源文件】｜【实例 92 】｜【 92.8.txt 】文件，直接复制）

　　（ 16 ）定义“ refer_Click ”过程，用于响应 【 发表 】 按钮的“ OnClick ”事件。

Sub refer_Click(ByVal sender As Object, ByVal e As System.EventArgs)
Dim cpConn, Cpstring As String
Dim conn As OleDbConnection
Dim Cpadapter As OleDbDataAdapter
Dim Cpdat As System.Data.DataSet
Dim dt As DataTable
cpConn = "Provider=Microsoft.Jet.OLEDB.4.0;Data Source=" & Server.MapPath
("dat\bad.mdb")
conn = New OleDbConnection(cpConn)
If MyblogData.RecordCount > 0 Then
Cpstring = "select * from myblog where myblogID=" & MyblogData.FieldValue ("myblogID", Nothing)
Cpadapter = New OleDbDataAdapter(Cpstring, conn)
Dim yy as OleDbCommandBuilder=new OleDbCommandBuilder (Cpadapter)
Cpdat = New System.Data.DataSet()
Cpadapter.Fill(Cpdat, "myblog")
dt = Cpdat.Tables("myblog")
dt.Rows(0)("myblog") = MyblogData.FieldValue("myblog", Nothing) + newmyblog. Text
Else
Cpstring = "select * from myblog"
Cpadapter = New OleDbDataAdapter(Cpstring, conn)
Dim yy as OleDbCommandBuilder=new OleDbCommandBuilder (Cpadapter)
Cpdat = New System.Data.DataSet()
Cpadapter.Fill(Cpdat, "myblog")
Dim dr As DataRow
dr = Cpdat.Tables("myblog").NewRow
dr("title") = newtitle.Text
dr("myblog") = newmyblog.Text
dr("myblogtm")=today
Cpdat.Tables("myblog").Rows.Add(dr)
End If
Cpadapter.Update(Cpdat, "myblog")
panel1.Visible = True
Response.Redirect(Request.ServerVariables("SCRIPT_NAME"))
End Sub

　　（读者可打开【光盘】｜【源文件】｜【实例 92 】｜【 92.9.txt 】文件，直接复制）

　　程序说明：

　　由于网络日记每天只限一篇，为了防止用户在发表完随笔后再发表随笔，程序设置如果已发表了随笔，那么再发表随笔时，只是把发表的内容加在原来随笔的后面进行更新。

　　实例 91 到实例 93 介绍了简单 BLOG 的实现，留言本、论坛的实现与 BLOG 十分类似，由于篇幅的关系，这里就不对它们进行介绍了。至此，本实例操作完毕。

　　更多实例请阅读《Dreamweaver网页设计与制作实例精选》。