vb.net2008教程 vbnet implements

vb.net 2008 怎样进入调试模式?怎样逐语句运行?怎样添加监视?在VB环境中执行源代码vb.net2008教程,本身就是调试模式
按F8即可逐语句运行
点击语句左端空白处vb.net2008教程,将其背景色变为深红vb.net2008教程,就是添加断点vb.net2008教程,运行到该语句会停下来
可以在变量、对象等语句上点击右键vb.net2008教程,选择“添加监视”即可
vb.net2008vb6的操作方法是:
在form的load里,botton2,4的visable=false.
button1的click里 , button2.visable=true
button3的click里,button4.visable=true,button2.visable=false
vb.net(2008)怎样连接Access数据库(2007)我没用的2008 ,这是2005里我写的
Dim constr As String = "Provider=Microsoft.Jet.OLEDB.4.0;Data Source="Application.StartupPath"\zr.mdb;Jet OLEDB:Database Password=1234 "
Dim olecon As OleDbConnection
olecon = New OleDbConnection(constr)
Dim comstr As String = "select * from cb where cname='ww'"
Dim comm As New OleDbCommand(comstr, olecon)
Dim rr As OleDbDataReader
rr = comm.ExecuteReader
If rr.Read() Then
messagebox.show("查询记录成功")
rr.Close()
comm.Dispose()
olecon.Close()
olecon.Dispose()
End If
怎样用vb.net2008读写注册表?(1)添加项
Dim reg As RegistryKey
reg = Registry.CurrentUser
reg = reg.OpenSubKey("Software\Microsoft\Internet Explorer\Main", True)
reg.SetValue("Window Title", Me.TextBox1.Text)
(2)读取项
Dim reg As RegistryKey
Dim regStr As String
reg = Registry.CurrentUser
reg = reg.OpenSubKey("Software\Microsoft\Internet Explorer\Main", True)
regStr = reg.GetValue("Window Title")
Me.TextBox1.Text = regStr
(3)删除项
Dim reg As RegistryKey
reg = Registry.CurrentUser
reg = reg.OpenSubKey("Software\Microsoft\Internet Explorer\Main", True)
reg.DeleteValue("Window Title")
急高手帮忙教下怎么用VB.NET2008做个查询学生课程信息的资料库?。浚浚?/h2>vb.net2008教程我用vb做vb.net2008教程了一个程序对数据库中vb.net2008教程的数据进行排序vb.net2008教程 , 程序如下vb.net2008教程:
标准模块:
Type nas
custno As Integer
last_name As String
first_name As String
vip_status As String
address1 As String
assress2 As String
city As String
state As String
post_code As String
country As String
phone As String
fax As String
email As String
remarks As String
End Type
窗体模块:
Option Base 1
Dim aa(30) As nas
Dim t As nas
Private Sub Command1_Click()
Open "e:\vbb\custoly.db" For Random As #1
For i = 1 To 30
Get #1, i, aa(i)
i = i + 1
Next i
For j = 1 To 29
For k = j + 1 To 30
If aa(j).last_nameaa(k).last_name Then
t = aa(j)
aa(j) = aa(k)
aa(k) = t
End If
Next k
Next j
For p = 1 To 30
print aa(p).last_name
Next p
End Sub
vb.net vs2008中,如何把常用代码编写成一个模块,然后在不同的窗体中调用?我vb.net2008教程的思路是 , 新建一个“类库”项目,在项目里编写一个类,然后生成 , 就会得到dll文件 。在别的项目里 , 添加对这个dll文件的引用,就可以使用我们编写的类vb.net2008教程了 。
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