vb.net怎么使用表格控件？

DataGridView控件，放一個(gè)DataGridView1和Button1到窗體，下面是按鈕下代碼

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Private Sub Button1_Click(sender As Object, e As EventArgs) Handles Button1.Click

Me.DataGridView1.AllowUserToAddRows = False

DataGridView1.RowTemplate.Height = 200

DataGridView1.AutoSizeRowsMode = DataGridViewAutoSizeRowsMode.None

For i = 1 To 3

Me.DataGridView1.Columns.Add("列" i.ToString, "列" i.ToString)

Me.DataGridView1.Rows.Add()

Next

Me.DataGridView1.Columns(0).Width = 100

Me.DataGridView1.Columns(1).Width = 500

Me.DataGridView1.Columns(0).Width = 300

End Sub

'自己設(shè)置相關(guān)需要的屬性即可

VB下如何使用iPlotLibrary控件

VB.NET的iPlotLibrary控件是VB.NET最常用也最簡(jiǎn)單的一種控件。下面介紹一下如何使用iPlotLibrary控件。

新建一個(gè)VB.NET新程序

左側(cè)工具箱選擇‘iPlotLibrary’控件

中間桌布上拖動(dòng)，放在中間

iPlotLibrary控件最常用的兩個(gè)屬性：name。一般使用簡(jiǎn)寫的Btn來(lái)代表iPlotLibrary按鈕，IT業(yè)內(nèi)的規(guī)定。

另一個(gè)常用的屬性，Text。用來(lái)顯示我們當(dāng)前的按鈕文字，默認(rèn)是iPlotLibrary1。

雙擊iPlotLibrary控件屬性，自動(dòng)進(jìn)入click事件。click事件的意思是只要單擊iPlotLibrary控件，就會(huì)觸發(fā)事件，這個(gè)事件就是代碼中所寫的要彈出的對(duì)話框hello world！

使用按鍵F5，調(diào)試運(yùn)行。結(jié)果如下，這樣便是成功了。

求VB.net datagrid 控件的使用方法（入門級(jí)）

Dim tab1 As String

Dim DS As New DataSet

Dim SqlStr As String

Dim DTS_A As New DataGridTableStyle

Dim Col_A1, Col_A2, Col_A3 As New DataGridTextBoxColumn

Dim Col_bo As New DataGridBoolColumn

'DS.Tables("tab1").Columns.Add("check", System.Type.GetType("System.Boolean"))

'DS.Tables("tab1").Columns("check").DefaultValue = False

Dim Col_A() As DataGridColumnStyle = {Col_bo, Col_A1, Col_A2, Col_A3}

'主窗口

Private Sub fICitem_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load

ProgressBar1.Hide()

grdStyles("tab1")

SQLConn(conn)

Dim i As Integer

'Dim arr As New ArrayList

SqlStr = "SELECT ID, diqu, dname FROM a_diqu Order by ID"

If Not SQLFill(conn, DA, DS, SqlStr, "diqu") Then

MsgBox("服務(wù)器連接失敗")

Else

Dim dr As DataRow

For Each dr In DS.Tables("diqu").Rows

'arr.Add(dr("diqu") "." dr("dname"))

cmbDiqu.Items.Add(dr("diqu") "." dr("dname"))

Next

End If

'cmbDiqu.DataSource = arr

cmbDiqu.SelectedIndex = -1

cmbDiqu.Text = ""

End Sub

'DataGrid格式

Private Sub grdStyles(ByVal tab As String)

Dim ii1 As Integer

Dim DTS_A1() As String = {"check", "fshortnumber", "fnumber", "fplanprice"}

Dim DTS_A2() As String = {"檢查框", "貨號(hào)", "上市月份", "單價(jià)"}

Dim DTS_A3() As Integer = {50, 120, 120, 120} '長(zhǎng)度

Dim DTS_A4() As Integer = {2, 0, 2, 1} '對(duì)齊方式

DTS_A.MappingName = tab

DTS_A.GridColumnStyles.Clear()

DTS_A.AllowSorting = True

DTS_A.ReadOnly = True

DTS_A.BackColor = Color.DarkGray

DTS_A.AlternatingBackColor = Color.LightGray

For ii1 = 0 To DTS_A1.Length - 1

Col_A(ii1).MappingName = DTS_A1(ii1)

Col_A(ii1).HeaderText = DTS_A2(ii1)

Col_A(ii1).Width = DTS_A3(ii1)

Col_A(ii1).NullText = ""

Col_A(ii1).Alignment = DTS_A4(ii1)

Next

DTS_A.GridColumnStyles.AddRange(Col_A)

grdItem.TableStyles.Add(DTS_A)

grdItem.ReadOnly = True

End Sub

Private Sub fICitem_Closed(ByVal sender As Object, ByVal e As System.EventArgs) Handles MyBase.Closed

SQLClose(conn)

End Sub

'顯示表單

Private Sub Show1()

grdStyles("tab1")

txtNum.Text = Trim(txtNum.Text)

grdItem.DataSource = Nothing

SQLStr = "select * from t_icitem_new"

SQLStr = " where fshortnumber like '" txtNum.Text "%'"

SQLStr = " order by fshortnumber"

SQLFill(conn, DA, DS, SQLStr, tab1)

grdItem.CaptionText = "貨號(hào)資料"

grdItem.DataSource = DS.Tables(tab1)

ShowRow()

End Sub

'數(shù)據(jù)同步顯示

Private Sub ShowRow()

Dim dr As DataRow

If DS.Tables(tab1).Rows.Count 0 Then

If grdItem.CurrentRowIndex DS.Tables(tab1).Rows.Count Then

grdItem.CaptionText = grdItem.CurrentRowIndex + 1 "/" DS.Tables(tab1).Rows.Count

dr = DS.Tables(tab1).Rows(grdItem.CurrentRowIndex)

txtNum.Text = dr.Item("fshortnumber")

txtPrice.Text = dr.Item("fplanprice")

cmbMonth.Text = dr.Item("fnumber")

Else

txtNum.Text = ""

txtPrice.Text = ""

cmbMonth.Text = ""

End If

Else

txtNum.Text = ""

txtPrice.Text = ""

cmbMonth.Text = ""

End If

End Sub

Private Sub grdItem_CurrentCellChanged(ByVal sender As Object, ByVal e As System.EventArgs) Handles grdItem.CurrentCellChanged

ShowRow()

End Sub

'鼠標(biāo)選定行

Private Sub grdItem_CurrentCellChanged(ByVal sender As Object, ByVal e As System.EventArgs) Handles grdItem.CurrentCellChanged

ShowRow()

End Sub

Private Sub btn_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) _

Handles btnSelect.Click, btnUpdate.Click, btnInsert.Click, btnDelete.Click

Select Case sender.name

Case "btnSelect" '查詢

Show1()

Case "btnUpdate" '修改

SUpdate()

Case "btnInsert" '新增

SInsert()

Case "btnDelete" '刪除

SDelete()

End Select

End Sub

'修改

Private Sub SUpdate()

txtNum.Text = Trim(txtNum.Text)

txtPrice.Text = Trim(txtPrice.Text)

If MsgBox("確定更新？", MsgBoxStyle.YesNo) = MsgBoxResult.Yes Then

SQLStr = "UPDATE t_icitem_new SET "

SQLStr = "fnumber='" cmbMonth.SelectedItem "', "

SQLStr = "fplanprice='" txtPrice.Text "' "

SQLStr = "WHERE fshortnumber='" txtNum.Text "'"

If Not SQLFill2(conn, SQLStr) Then

MsgBox("抱歉，更新失敗:(")

End If

Show1()

End If

End Sub

'新增

Private Sub SInsert()

txtNum.Text = Trim(txtNum.Text)

txtPrice.Text = Trim(txtPrice.Text)

If MsgBox("確定新增？", MsgBoxStyle.YesNo) = MsgBoxResult.Yes Then

SQLStr = "SELECT fshortnumber "

SQLStr = "FROM t_icitem_new "

SQLStr = "WHERE fshortnumber = '" txtNum.Text "' "

SQLFill(conn, DA, DS, SQLStr, "Tmp")

If DS.Tables("Tmp").Rows.Count = 0 Then '如果沒有資料則新增

SQLStr = "INSERT INTO t_icitem_new (fshortnumber,fnumber,fplanprice) VALUES("

SQLStr = "'" txtNum.Text "', "

SQLStr = "'" cmbMonth.SelectedItem "', "

SQLStr = "'" txtPrice.Text "')"

If Not SQLFill2(conn, SQLStr) Then

MsgBox("抱歉，新增失敗:(")

End If

Show1()

Else

MsgBox("資料已存在")

End If

End If

End Sub

'刪除

Private Sub SDelete()

txtNum.Text = Trim(txtNum.Text)

txtPrice.Text = Trim(txtPrice.Text)

If MsgBox("確定刪除" txtNum.Text "？", MsgBoxStyle.YesNo + MsgBoxStyle.DefaultButton2) = MsgBoxResult.Yes Then

SQLStr = "DELETE FROM t_icitem_new "

SQLStr = "WHERE fshortnumber='" txtNum.Text "'"

If Not SQLFill2(conn, SQLStr) Then

MsgBox("抱歉，刪除失敗:(")

End If

Show1()

End If

'鍵盤順序

Private Sub txt_KeyDown(ByVal sender As Object, ByVal e As System.Windows.Forms.KeyEventArgs) _

Handles txtFshop.KeyDown, txtItem.KeyDown

Select Case e.KeyCode

Case Keys.Return

SendKeys.Send("{TAB}")

Case Keys.Right

SendKeys.Send("{TAB}")

Case Keys.Left

SendKeys.Send("+{TAB}")

Case Keys.Down

SendKeys.Send("{TAB 10}")

Case Keys.Up

SendKeys.Send("+{TAB 10}")

End Select

End Sub

vb.net自定義控件問(wèn)題

首先，你已經(jīng)完成的步驟是：

1.新建一個(gè)用戶控件[注意，用戶控件（UserControl）不是自定義控件（CustomControl）]

2.給用戶控件起個(gè)名字（我在此處起名叫 RadioList）

3.在用戶控件上畫一個(gè) GroupBox，命名為 RadioGroup，

并將其 Dock 屬性設(shè)置為 Fill

然后，你需要做的是動(dòng)態(tài)增減控件。

如果你以前用過(guò) VB 6，你可能會(huì)想到控件數(shù)組，

但在此處，你可以直接增刪控件。

具體實(shí)現(xiàn)如下：

4.在 GroupBox 里畫一個(gè) FlowLayoutPanel，命名為 RadioPanel，

將其 AutoScroll 屬性設(shè)置為 True，即自動(dòng)顯示滾動(dòng)條，

并設(shè)置其 FlowDirection 屬性（例如設(shè)置為 TopDown）

這樣就省去了手動(dòng)調(diào)整 RadioButton 位置的麻煩

5.實(shí)現(xiàn)選項(xiàng)的動(dòng)態(tài)增減（以下只是我的思路，你可以發(fā)揮一下）

（十分簡(jiǎn)潔，注釋除外）：

''' summary

''' 創(chuàng)建一個(gè)新的 RadioButton。

''' /summary

Private Function CreateRadio() As RadioButton

Dim NewRadio As New RadioButton

components.Add(NewRadio)

'components 字段由控件設(shè)計(jì)器自動(dòng)創(chuàng)建，

'此代碼目的是使控件在銷毀（Dispose）時(shí)能自動(dòng)銷毀 RadioButton

'詳情參見 RadioList.Designer.vb

NewRadio.Parent = RadioPanel

'設(shè)置容器

AddHandler NewRadio.CheckedChanged, AddressOf RadioButtons_CheckedChanged

'設(shè)置事件處理程序

Return NewRadio

End Function

''' summary

''' 移除已存在的 RadioButton。

''' /summary

Private Sub RemoveRadio(ByVal dest As RadioButton)

components.Remove(dest)

dest.Dispose()

End Sub

'無(wú)中生有的 RadioButton 的事件處理程序

Private Sub RadioButtons_CheckedChanged(ByVal sender As System.Object, ByVal e As System.EventArgs)

'在此處設(shè)置選中項(xiàng)的屬性，通過(guò) sender 來(lái)確定不同的 OptionButton

'你可以通過(guò)將 OptionButton 放在一個(gè)列表，

'如 List(Of OptionButton) 中來(lái)像數(shù)組一樣維護(hù)選項(xiàng)的次序

'注意，此處需要判斷 sender 的 Checked 屬性是否為 True

'因?yàn)?Changed 是“改變”，而不是“選中”

'例如：

If DirectCast(sender, RadioButton).Checked Then

SelectedIndex = ...

End If

End Sub