用vb.net做一个 vbnet createobject

我想用vb.net做一个Windows窗口应用程序；

可以实现

搞个button，点击的时候连接数据库，写入数据

再搞个button，点击的时候，连接数据库，查询数据，显示在datagridview里面（将查询到的数据存在datatable中，再把datatable赋给datagridview的datasource就可以了）

怎样用vb.net做一个图片浏览器？

在自定义工具箱中选择dirlistbox，drivelistbox，filelistbox，添加这3个控件，然后在窗体上添加这些控件和一个picturebox控件，代码如下：

Public Class Form1

Private Sub DirListBox1_SelectedIndexChanged(ByVal sender As Object, ByVal e As System.EventArgs) Handles DirListBox1.SelectedIndexChanged

FileListBox1.Path = DirListBox1.Path

End Sub

Private Sub DriveListBox1_SelectedIndexChanged(ByVal sender As Object, ByVal e As System.EventArgs) Handles DriveListBox1.SelectedIndexChanged

DirListBox1.Path = DriveListBox1.Drive

End Sub

Private Sub FileListBox1_SelectedIndexChanged(ByVal sender As Object, ByVal e As System.EventArgs) Handles FileListBox1.SelectedIndexChanged

PictureBox1.Image = Image.FromFile(FileListBox1.Path + "\" + FileListBox1.SelectedItem.ToString())

End Sub

End Class

你可以自己在修改下，这只是个模型，呵呵！

用VB.net做一个时间计时器

'添加一个label标签名字label1 用来显示时间

'再添加一个timer控件 名字timer1 interval属性=1000 用来计时

'窗体添加代码

Dim t As Date '用来记录时间

Private Sub Timer1_Tick(ByVal sender As System.Object, ByVal e As _

System.EventArgs) Handles Timer1.Tick

t = t.AddSeconds(1)

Label1.Text = "登录时间:" t.TimeOfDay.ToString

End Sub

使用VB.net来完成一个系统，要用什么软件？

既然打算用Vb语言来编程，那就选择vb.net它从属于microsoft visual studio 这个.net开发平台，目前最新版本是microsoft visual studio 2012，不过VS2010已经是很成熟的了，很多人在用也有很多学习资料可以参考。

推荐你目前采用VS2010，你有时间可以看看vb.net2010入门经典，vb.net从入门到精通，vb.net高级编程等等

谁能帮我用VB.net做个简单的游戏设计啊,我快愁死了

这是个vb6的BINGO小游戏的代码 如果要源程序 去我资料里找我网盘的地址 下载bingo.rar

因为没有任何第三方控件，可以直接转成vb.net的！~

Option Explicit

Private iSumA As IntegerPrivate iSumB As Integer

Private Sub Command1_Click()

Dim i As Integer

Dim j As Integer

Call S_Clear(1)

If F_CheckAll = False Then Exit Sub

For j = 0 To 3

For i = 0 To 3

If Val(Text(j).Text) = Val(Label(i).Caption) Then

If i = j Then

iSumA = iSumA + 1

Else

iSumB = iSumB + 1

End If

End If

Next

Next

Call S_Show

End Sub

Private Sub S_Clear(Optional iKB As Integer = 0)

Dim i As Integer

If iKB = 0 Then

For i = 0 To 3

Label(i).Caption = ""

Text(i).Text = ""

Next

End If

iSumA = 0

iSumB = 0

Label5.Caption = ""

End Sub

Private Sub S_Start()

Dim i As Integer

For i = 0 To 3

Label(i).Visible = False

Label(i).Caption = F_iGetRandomize(i)

Next

End Sub

Private Sub S_Show()

Dim stemp As String

Dim i As Integer

For i = 1 To iSumA

stemp = stemp "A"

Next

For i = 1 To iSumB

stemp = stemp "B"

Next

If iSumA + iSumB = 0 Then

Label5.Caption = "0000"

Else

Label5.Caption = stemp

End If

If iSumA = 4 Then

For i = 0 To 3

Label(i).Visible = False

Label(i).Caption = F_iGetRandomize(i)

Next

MsgBox "Bingo", vbOKOnly, "Flying Frog"

Command2.Value = True

DoEvents

Text(0).SetFocus

End If

End Sub

Private Sub Command2_Click()

Call S_Clear

Call S_Start

End Sub

Private Sub Form_Load()

Call S_Clear

Call S_Start

End Sub

Private Function F_iGetRandomize(ByVal iKB As Integer) As Integer

Dim num As Integer

Start:

Randomize

num = Rnd * (9 - 1) + 1

Select Case iKB

Case 0

F_iGetRandomize = num

Case 1

If num Val(Label(0).Caption) And _

num Val(Label(2).Caption) And _

num Val(Label(3).Caption) Then

F_iGetRandomize = num

Else

GoTo Start

End If

Case 2

If num Val(Label(0).Caption) And _

num Val(Label(2).Caption) And _

num Val(Label(3).Caption) Then

F_iGetRandomize = num

Else

GoTo Start

End If

Case 3

If num Val(Label(0).Caption) And _

num Val(Label(1).Caption) And _

num Val(Label(2).Caption) Then

F_iGetRandomize = num

Else

GoTo Start

End If

End Select

End Function

Private Function F_CheckText(ByVal iIndex As Integer) As Boolean

F_CheckText = False

If Val(Text(iIndex).Text) = 0 Then

Text(iIndex).SetFocus

MsgBox "Must Input", vbCritical, "Flying Frog"

Exit Function

End If

Select Case iIndex

Case 0

If Val(Text(iIndex).Text) = Val(Text(1).Text) Or _

Val(Text(iIndex).Text) = Val(Text(2).Text) Or _

Val(Text(iIndex).Text) = Val(Text(3).Text) Then

Text(iIndex).SetFocus

MsgBox "Same Number", vbCritical, "Flying Frog"

Exit Function

End If

Case 1

If Val(Text(iIndex).Text) = Val(Text(0).Text) Or _

Val(Text(iIndex).Text) = Val(Text(2).Text) Or _

Val(Text(iIndex).Text) = Val(Text(3).Text) Then

Text(iIndex).SetFocus

MsgBox "Same Number", vbCritical, "Flying Frog"

Exit Function

End If

Case 2

If Val(Text(iIndex).Text) = Val(Text(0).Text) Or _

Val(Text(iIndex).Text) = Val(Text(1).Text) Or _

Val(Text(iIndex).Text) = Val(Text(3).Text) Then

Text(iIndex).SetFocus

MsgBox "Same Number", vbCritical, "Flying Frog"

Exit Function

End If

Case 3

If Val(Text(iIndex).Text) = Val(Text(0).Text) Or _

Val(Text(iIndex).Text) = Val(Text(1).Text) Or _

Val(Text(iIndex).Text) = Val(Text(2).Text) Then

Text(iIndex).SetFocus

MsgBox "Same Number", vbCritical, "Flying Frog"

Exit Function

End If

End Select

F_CheckText = True

End Function

Private Function F_CheckAll() As Boolean

Dim i As Integer

F_CheckAll = False

For i = 0 To 3

If F_CheckText(i) = False Then Exit Function

Next

F_CheckAll = True

End Function

Private Sub Text_GotFocus(Index As Integer)

Text(Index).SelStart = 0

Text(Index).SelLength = Len(Text(Index).Text)

End Sub

Private Sub Text_KeyDown(Index As Integer, KeyCode As Integer, Shift As Integer)

If KeyCode = vbKeyReturn Then

If F_CheckText(Index) = False Then Exit Sub

End If

S_gKeySend (KeyCode)

End Sub

Private Sub Text_KeyPress(Index As Integer, KeyAscii As Integer)

KeyAscii = F_gKeypressNumber(Text(Index), KeyAscii, 1)

End Sub

我在用VB.net做一个计算程序，遇到一个问题。一个数15563，需要取出万位和千位（1500）

dim a as integer

a=15563

万位=a\10000

千位=a\1000 mod 10

百位=a\100 mod 10

if a mod 105 then 百位+=1

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