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vb编程.net Vb编程读取数是零时忽略( 四 )

IT技术代码


图 :【TestWebService】的运行界面
Form vb的代码清单如下:
Public Class Form Inherits System Windows Forms Form#Region Windows 窗体设计器生成的代码 Public Sub New ( )　MyBase New ( )该调用是 Windows 窗体设计器所必需的InitializeComponent ( )在 InitializeComponent ( ) 调用之后添加任何初始化End Sub 窗体重写处置以清理组件列表 Protected Overloads Overrides Sub Dispose ( ByVal disposing As Boolean )　If disposing ThenIf Not ( ponents Is Nothing ) Then　ponents Dispose ( )End If　End If　MyBase Dispose ( disposing )End Sub Windows 窗体设计器所必需的Private ponents As System ComponentModel IContainer注意 以下过程是 Windows 窗体设计器所必需的可以使用 Windows 窗体设计器修改此过程不要使用代码编辑器修改它Friend WithEvents Button As System Windows Forms Button　Friend WithEvents Button As System Windows Forms Button　Friend WithEvents DataGrid As System Windows Forms DataGrid　System Diagnostics DebuggerStepThrough ( )Private Sub InitializeComponent ( )　Me Button = New System Windows Forms Button ( )　Me Button = New System Windows Forms Button ( )　Me DataGrid = New System Windows Forms DataGrid ( )　CType ( Me DataGrid System ComponentModel ISupportInitialize ) BeginInit ( )　Me SuspendLayout ( )　Me Button FlatStyle = System Windows Forms FlatStyle Flat　Me Button Location = New System Drawing Point ( )　Me Button Name = ButtonMe Button Size = New System Drawing Size ( )　Me Button TabIndex =Me Button Text = 绑定Me Button FlatStyle = System Windows Forms FlatStyle Flat　Me Button Location = New System Drawing Point ( )　Me Button Name = ButtonMe Button Size = New System Drawing Size ( )　Me Button TabIndex =Me Button Text = 修改Me DataGrid DataMember =Me DataGrid Dock = System Windows Forms DockStyle Top　Me DataGrid HeaderForeColor = System Drawing SystemColors ControlText　Me DataGrid Name = DataGridMe DataGrid Size = New System Drawing Size ( )　Me DataGrid TabIndex =Me AutoScaleBaseSize = New System Drawing Size ( )　Me ClientSize = New System Drawing Size ( )　Me Controls AddRange ( New System Windows Forms Control ( ) {Me DataGrid Me Button Me Button } )　Me Name = FormMe Text = 测试Web ServiceCType ( Me DataGrid System ComponentModel ISupportInitialize ) EndInit ( )　Me ResumeLayout ( False )End Sub#End RegionPrivate Sub Button _Click ( ByVal sender As System Object ByVal e As System EventArgs ) Handles Button Click　Dim MyService As New localhost Service ( )　DataGrid DataSource = MyService Binding ( )　DataGrid DataMember = Cust End SubPrivate Sub Button _Click ( ByVal sender As System Object ByVal e As System EventArgs ) Handles Button Click　Dim MyService As New localhost Service ( )　Dim ds As DataSet = DataGrid DataSource　Dim dsChanges As DataSet = ds GetChanges ( )　If Not ( dsChanges Is Nothing ) Thends Merge ( MyService Update ( dsChanges ) True )　End IfEnd SubEnd Class
六 总结
lishixinzhi/Article/program/net/201311/11839
VB.NET编程语法vb编程.net你这是vb.netvb编程.net的代码,vb中不允许那么写:
Dim
strdx()
As
String
=
{"0",
"0",
"0"}
'定义个数组,从后面vb编程.net的值能看vb编程.net的出最大下标是2,也就是strdx(0),strdx(1)和strdx(2),3个的默认值都为0
Dim
calcount1
As
String
=
"0"
【vb编程.net Vb编程读取数是零时忽略】'定义个字符串变量
Dim
calcount2
As
String
=
"0"
Dim
strvalue
As
Boolean
=
False
'定义strvalue为bool值,改类型变量只有true和false
2种值
If
strdx(0)
=
"0"
Then
TextBox1.Text
=
strdx(0)
"."
这是字符串连接符号,和"+"的区别是,vb编程.net他把左右2边的内容直接连接的,而"+"可能会编程运算符,例如
2
3

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