vb.net数组绑定数据 vba数组连接

vb.net 一个数组怎么添加新数据

list1.additem j 意思就是把j添加至list1列表中,这是在一个for 循环中，循环了10次，添加了10次 j，即 list1 中有10列分别为：1,3,6,10,15,21,28,36,45,55

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下面又来了一个循环， list1.removeitem 删除列，删除的是 list1.listcount - i ，list1.listcount 就是总列数为10，减去 i ，i 是1到4，即10-1，9-2，8-3，7-4 每减掉一次，list1.listcount 就少了一条记录。

(注意，list1.listcount-1 是最后一条记录)

减掉了第 9，7，5，3列

剩余为 1,3,6,15,28,45

结果为：3,15,28

'ListCount返回列表框中的项目总数

'ListCount-1是列表框中最后一个项目的索引号

'亏你提醒了，我写错了，上面修改了，第一个索引为0，最后一个为9.

'也就是，问题所问的第二列的索引为1，第四列的索引为3...

vb.net 怎么把二维数组绑定到 DataGridView中?

数组内容更新结束后，清空Datagridview，然后再重写Datagridview就可以了、

VB.net 如何绑定许多button和数组

vb.net里没有像vb那样的控件数组。也就是说复制控件后粘贴没有提示你是否创建控件数组。

你可以试验下面的代码。

Form1.Designer.vb 设计器中的窗体代码如下，上面有六个button。最右边的用来改变前5个地text：

Global.Microsoft.VisualBasic.CompilerServices.DesignerGenerated() Partial Class Form1

#Region "Windows フォームデザイナによって生成されたコード "

System.Diagnostics.DebuggerNonUserCode() Public Sub New()

MyBase.New()

'この呼び出しは、Windows フォームデザイナで必要です。

InitializeComponent()

End Sub

'Form は、コンポーネント一覧に后処理を実行するために dispose をオーバーライドします。

System.Diagnostics.DebuggerNonUserCode() Protected Overloads Overrides Sub Dispose(ByVal Disposing As Boolean)

If Disposing Then

If Not components Is Nothing Then

components.Dispose()

End If

MyBase.Dispose(Disposing)

End Sub

'Windows フォームデザイナで必要です。

Private components As System.ComponentModel.IContainer

Public ToolTip1 As System.Windows.Forms.ToolTip

Public WithEvents Command2 As System.Windows.Forms.Button

Public WithEvents _Command1_4 As System.Windows.Forms.Button

Public WithEvents _Command1_3 As System.Windows.Forms.Button

Public WithEvents _Command1_2 As System.Windows.Forms.Button

Public WithEvents _Command1_1 As System.Windows.Forms.Button

Public WithEvents _Command1_0 As System.Windows.Forms.Button

Public WithEvents Command1 As Microsoft.VisualBasic.Compatibility.VB6.ButtonArray

'メモ: 以下のプロシージャは Windows フォームデザイナで必要です。

'Windows フォームデザイナを使って変更できます。

'コードエディタを使用して、変更しないでください。

System.Diagnostics.DebuggerStepThrough() Private Sub InitializeComponent()

Me.components = New System.ComponentModel.Container

Me.ToolTip1 = New System.Windows.Forms.ToolTip(Me.components)

Me.Command2 = New System.Windows.Forms.Button

Me._Command1_4 = New System.Windows.Forms.Button

Me._Command1_3 = New System.Windows.Forms.Button

Me._Command1_2 = New System.Windows.Forms.Button

Me._Command1_1 = New System.Windows.Forms.Button

Me._Command1_0 = New System.Windows.Forms.Button

Me.Command1 = New Microsoft.VisualBasic.Compatibility.VB6.ButtonArray(Me.components)

CType(Me.Command1, System.ComponentModel.ISupportInitialize).BeginInit()

Me.SuspendLayout()

'Command2

Me.Command2.BackColor = System.Drawing.SystemColors.Control

Me.Command2.Cursor = System.Windows.Forms.Cursors.Default

Me.Command2.ForeColor = System.Drawing.SystemColors.ControlText

Me.Command2.Location = New System.Drawing.Point(235, 176)

Me.Command2.Name = "Command2"

Me.Command2.RightToLeft = System.Windows.Forms.RightToLeft.No

Me.Command2.Size = New System.Drawing.Size(65, 25)

Me.Command2.TabIndex = 5

Me.Command2.Text = "Change"

Me.Command2.UseVisualStyleBackColor = False

'_Command1_4

Me._Command1_4.BackColor = System.Drawing.SystemColors.Control

Me._Command1_4.Cursor = System.Windows.Forms.Cursors.Default

Me._Command1_4.ForeColor = System.Drawing.SystemColors.ControlText

Me.Command1.SetIndex(Me._Command1_4, CType(4, Short))

Me._Command1_4.Location = New System.Drawing.Point(16, 176)

Me._Command1_4.Name = "_Command1_4"

Me._Command1_4.RightToLeft = System.Windows.Forms.RightToLeft.No

Me._Command1_4.Size = New System.Drawing.Size(93, 25)

Me._Command1_4.TabIndex = 4

Me._Command1_4.Text = "Command1"

Me._Command1_4.UseVisualStyleBackColor = False

'_Command1_3

Me._Command1_3.BackColor = System.Drawing.SystemColors.Control

Me._Command1_3.Cursor = System.Windows.Forms.Cursors.Default

Me._Command1_3.ForeColor = System.Drawing.SystemColors.ControlText

Me.Command1.SetIndex(Me._Command1_3, CType(3, Short))

Me._Command1_3.Location = New System.Drawing.Point(16, 137)

Me._Command1_3.Name = "_Command1_3"

Me._Command1_3.RightToLeft = System.Windows.Forms.RightToLeft.No

Me._Command1_3.Size = New System.Drawing.Size(93, 25)

Me._Command1_3.TabIndex = 3

Me._Command1_3.Text = "Command1"

Me._Command1_3.UseVisualStyleBackColor = False

'_Command1_2

Me._Command1_2.BackColor = System.Drawing.SystemColors.Control

Me._Command1_2.Cursor = System.Windows.Forms.Cursors.Default

Me._Command1_2.ForeColor = System.Drawing.SystemColors.ControlText

Me.Command1.SetIndex(Me._Command1_2, CType(2, Short))

Me._Command1_2.Location = New System.Drawing.Point(16, 96)

Me._Command1_2.Name = "_Command1_2"

Me._Command1_2.RightToLeft = System.Windows.Forms.RightToLeft.No

Me._Command1_2.Size = New System.Drawing.Size(93, 25)

Me._Command1_2.TabIndex = 2

Me._Command1_2.Text = "Command1"

Me._Command1_2.UseVisualStyleBackColor = False

'_Command1_1

Me._Command1_1.BackColor = System.Drawing.SystemColors.Control

Me._Command1_1.Cursor = System.Windows.Forms.Cursors.Default

Me._Command1_1.ForeColor = System.Drawing.SystemColors.ControlText

Me.Command1.SetIndex(Me._Command1_1, CType(1, Short))

Me._Command1_1.Location = New System.Drawing.Point(16, 56)

Me._Command1_1.Name = "_Command1_1"

Me._Command1_1.RightToLeft = System.Windows.Forms.RightToLeft.No

Me._Command1_1.Size = New System.Drawing.Size(93, 25)

Me._Command1_1.TabIndex = 1

Me._Command1_1.Text = "Command1"

Me._Command1_1.UseVisualStyleBackColor = False

'_Command1_0

Me._Command1_0.BackColor = System.Drawing.SystemColors.Control

Me._Command1_0.Cursor = System.Windows.Forms.Cursors.Default

Me._Command1_0.ForeColor = System.Drawing.SystemColors.ControlText

Me.Command1.SetIndex(Me._Command1_0, CType(0, Short))

Me._Command1_0.Location = New System.Drawing.Point(16, 16)

Me._Command1_0.Name = "_Command1_0"

Me._Command1_0.RightToLeft = System.Windows.Forms.RightToLeft.No

Me._Command1_0.Size = New System.Drawing.Size(93, 25)

Me._Command1_0.TabIndex = 0

Me._Command1_0.Text = "Command1"

Me._Command1_0.UseVisualStyleBackColor = False

'Form1

Me.AutoScaleDimensions = New System.Drawing.SizeF(6.0!, 13.0!)

Me.AutoScaleMode = System.Windows.Forms.AutoScaleMode.Font

Me.BackColor = System.Drawing.SystemColors.Control

Me.ClientSize = New System.Drawing.Size(312, 213)

Me.Controls.Add(Me.Command2)

Me.Controls.Add(Me._Command1_4)

Me.Controls.Add(Me._Command1_3)

Me.Controls.Add(Me._Command1_2)

Me.Controls.Add(Me._Command1_1)

Me.Controls.Add(Me._Command1_0)

Me.Cursor = System.Windows.Forms.Cursors.Default

Me.Location = New System.Drawing.Point(4, 23)

Me.Name = "Form1"

Me.RightToLeft = System.Windows.Forms.RightToLeft.No

Me.Text = "Form1"

CType(Me.Command1, System.ComponentModel.ISupportInitialize).EndInit()

Me.ResumeLayout(False)

End Sub

#End Region

End Class

’==========================================

Form1中的代码如下：

Friend Class Form1

Inherits System.Windows.Forms.Form

Private Sub Command2_Click(ByVal eventSender As System.Object, ByVal eventArgs As System.EventArgs) Handles Command2.Click

Dim i As Object

'按钮标题数组。

Dim cArr() As String = New String() {"A", "B", "C", "D", "E", "F", "G"}

For i = 0 To Me.Command1.Count - 1

Me.Command1(i).Text = cArr(i)

End Sub

End Class

vb.net可以为listbox绑定数据库吗

可以,按照下面的例子

listbox1.DataSource = ds.Tables(0)'绑定数据

listbox1.DisplayMember = "mainmen" 'listbox里显示的内容

listbox1.ValueMember = "bumen" '内容对应的值

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vb.net数组绑定数据 vba数组连接

vb.net 一个数组怎么添加新数据

vb.net 怎么把二维数组绑定到 DataGridView中?

VB.net 如何绑定许多button和数组

vb.net可以为listbox绑定数据库吗

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