vbc编译时出错,关于控件的一些错误
用vbc编译器编译时出现name 'Postdg' is not declared
....
只要是关于控件的都是未声明,请高手指教,多谢,在线等...
后台代码:
Imports System.Data
Imports System.Data.OleDb
Imports System.Web.UI.WebControls.DataGrid
Namespace aa
Public Class admin_PostManage2
Inherits System.Web.UI.Page
Dim connstring As String
Dim myconn As OleDbConnection
Dim strsql As String
Public Sub page_load()
If Session("adminuser") = "" Then
Response.Redirect("login.aspx")
Else
connstring = System.Configuration.ConfigurationManager.AppSettings("conn")
myconn = New OleDbConnection(connstring)
If Not IsPostBack Then
Postdatabind()
ShowStats()
End If
End If
End Sub
Public Sub Postdatabind()
Dim myadapter As OleDbDataAdapter = New OleDbDataAdapter()
Dim ds As DataSet = New DataSet()
Dim dv As DataView
strsql = "select * from ndarticle order by id desc"
myadapter.SelectCommand = New OleDbCommand(strsql, myconn)
myadapter.Fill(ds, "ndarticle")
dv = ds.Tables("ndarticle").DefaultView
Postdg.DataSource = dv
Postdg.DataBind()
End Sub
Public Sub dgrdproducts_created(ByVal s As Object, ByVal e As DataGridItemEventArgs)
Select Case e.Item.ItemType
Case ListItemType.Item, ListItemType.AlternatingItem, ListItemType.EditItem
Dim mylinkbutton As LinkButton
mylinkbutton = e.Item.FindControl("mydel")
mylinkbutton.Attributes.Add("onclick", "return confirm('确定要删除')")
End Select
End Sub
Public Sub dgrdproducts_del(ByVal s As Object, ByVal e As DataGridCommandEventArgs)
myconn.Open()
Dim intid As Integer = Postdg.DataKeys(e.Item.ItemIndex)
strsql = "delete * from ndarticle where id=@id"
Dim mycommand As OleDbCommand = New OleDbCommand(strsql, myconn)
'mycommand.Parameters.Addwith("@id", intid)
mycommand.Parameters.AddWithValue("@id", intid)
mycommand.ExecuteNonQuery()
Postdatabind()
myconn.Close()
End Sub
Public Sub PagerButtonClick(ByVal sender As Object, ByVal e As System.EventArgs)
'获得LinkButton的参数值
Dim arg As String = sender.commandargument
Select Case arg
Case "next"
If (Postdg.CurrentPageIndex < (Postdg.PageCount - 1)) Then
Postdg.CurrentPageIndex += 1
End If
Case "prev"
If (Postdg.CurrentPageIndex > 0) Then
Postdg.CurrentPageIndex -= 1
End If
Case "fist"
Postdg.CurrentPageIndex = 0
Case "last"
Postdg.CurrentPageIndex = Postdg.PageCount - 1
Case Else
Postdg.CurrentPageIndex = Convert.ToInt32(arg)
End Select
Postdatabind()
ShowStats()
End Sub
Public Sub ShowStats()
lblCurrentIndex.Text = "第 " + (Postdg.CurrentPageIndex + 1).ToString() + " 页"
lblPageCount.Text = "总共 " + Postdg.PageCount.ToString() + " 页"
End Sub
Public Sub btnGo_Click(ByVal sender As Object, ByVal e As System.EventArgs)
Dim PageI As Integer
'页面直接跳转的代码
If IsNumeric(txtGoPage.Text.Trim()) Then
If (txtGoPage.Text.Trim() <> "") Then
PageI = Int32.Parse(txtGoPage.Text.Trim()) - 1
If (PageI >= 0 And PageI < (Postdg.PageCount)) Then
Postdg.CurrentPageIndex = PageI
End If
End If
Postdatabind()
ShowStats()
End If
End Sub
End Class
End Namespace
前台代码:
<%@ Page Language="VB" AutoEventWireup="false" codefile="PostManage2.aspx.vb" Inherits="aa.admin_PostManage2" %>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml" >
<head runat="server">
<title>Untitled Page</title>
</head>
<body>
<form id="form1" runat="server">
<div>
<div>
<br />
<asp:DataGrid ID ="Postdg" runat ="server" DataKeyField ="id" AutoGenerateColumns ="false" HorizontalAlign ="center" Width ="650" BorderWidth ="1" PageSize ="30" AllowCustomPaging ="false" AllowPaging ="true" ondeletecommand="dgrdproducts_del" onitemcreated="dgrdproducts_created">
<Columns >
<asp:BoundColumn DataField ="username" HeaderText ="帐号"></asp:BoundColumn>
<asp:BoundColumn DataField ="title" HeaderText ="标题"></asp:BoundColumn>
<asp:BoundColumn DataField ="putdate" HeaderText ="日期"></asp:BoundColumn>
<asp:TemplateColumn HeaderText ="操作">
<ItemTemplate >
<asp:LinkButton ID ="mydel" runat ="server" CommandName ="delete" Text ="删除"></asp:LinkButton>
</ItemTemplate>
</asp:TemplateColumn>
</Columns>
<PagerStyle Visible ="false" />
</asp:DataGrid>
<br />
<table style="BORDER-COLLAPSE: collapse" cellSpacing="0" width="100%" border="0" align="center">
<tr>
<td align="center">
<asp:linkbutton id="btnFirst" runat="server" CommandArgument="fist" OnClick ="PagerButtonClick">首页</asp:linkbutton>
<asp:linkbutton id="btnPrev" runat="server" Width="36px" CommandArgument="prev" OnClick ="PagerButtonClick">上一页</asp:linkbutton>
<asp:linkbutton id="btnNext" runat="server" CommandArgument="next" OnClick ="PagerButtonClick" comm>下一页</asp:linkbutton>
<asp:linkbutton id="btnLast" runat="server" CommandArgument="last" OnClick ="PagerButtonClick">末页</asp:linkbutton>
<asp:label id="lblCurrentIndex" runat="server"></asp:label>/<asp:label id="lblPageCount" runat="server"></asp:label>
跳转到 <asp:TextBox id="txtGoPage" runat="server" Width="30px" CssClass="textbox"></asp:TextBox>
<asp:Button id="btnGo" runat="server" Text="GO" CssClass="button" Width="29px" OnClick ="btnGo_Click"></asp:Button>
</td>
</tr>
</table>
</div>
</div>
</form>
</body>
</html>
--------------------编程问答-------------------- 这样定义一下
Protected WithEvents Postdg As System.Web.UI.WebControls.DataGrid
其它类似 --------------------编程问答-------------------- vs2005 之前要定义的，vs2005就不用了
Namespace aa
Public Class admin_PostManage2
Inherits System.Web.UI.Page
Dim connstring As String
Dim myconn As OleDbConnection
Dim strsql As String
Protected WithEvents Postdg As System.Web.UI.WebControls.DataGrid
--------------------编程问答-------------------- 我用的是vc2005啊
还出现 name listitemtype is not declared 的错误 这个怎么修改啊
还有type 'linkbutton' is not defined 的错误 出错的地方是Dim mylinkbutton As LinkButton
等等...
大家别闲偶烦啊，麻烦大家了，我是新手^_^ --------------------编程问答-------------------- 自己顶下，结帖就散分啊...谢谢大家啊，继续在线等... --------------------编程问答-------------------- 顶一下 --------------------编程问答-------------------- 帮顶
--------------------编程问答-------------------- 自己顶下...
补充：.NET技术 , VB.NET
