vb點(diǎn)虐 傳參數(shù) vbnet imports

vb點(diǎn)虐 如何傳遞類參數(shù)

線程結(jié)束后利用委托生成事件返回，線程應(yīng)用包括傳入和傳出參數(shù)。

創(chuàng)新互聯(lián)是一家專注于成都網(wǎng)站設(shè)計(jì)、網(wǎng)站制作與策劃設(shè)計(jì),蓮花網(wǎng)站建設(shè)哪家好?創(chuàng)新互聯(lián)做網(wǎng)站,專注于網(wǎng)站建設(shè)10年,網(wǎng)設(shè)計(jì)領(lǐng)域的專業(yè)建站公司;建站業(yè)務(wù)涵蓋:蓮花等地區(qū)。蓮花做網(wǎng)站價(jià)格咨詢:18980820575

Public Delegate Sub ThreadCallback(value As ThreadResult)

Public Class Form1

Private WithEvents _th_1 As Thread_1

Protected Overrides Sub OnLoad(e As System.EventArgs)

Dim value As ThreadObject

value.Index = 1

Me._th_1 = New Thread_1(Me)

Me._th_1.Run(value)

MyBase.OnLoad(e)

End Sub

Private Sub Thread_1_End(sender As Object, e As ThreadEventArgs) Handles _th_1.ThreadEnd

Me.TextBox1.Text = e.Result.Text

End Sub

End Class

Public Class Thread_1

Public Event ThreadEnd(sender As Object, e As ThreadEventArgs)

Private _control As Control

Sub New(control As Control)

Me._control = control

End Sub

Public Sub Run(value As Object)

Dim th As New Threading.Thread(AddressOf ThreadProc)

th.Start(value)

End Sub

Private Sub ThreadProc(obj As Object)

Dim value As ThreadObject = CType(obj, ThreadObject)

Dim result As ThreadResult = Nothing

If value.Index = 1 Then result.Text = "測試"

Dim callback As New ThreadCallback(AddressOf ThreadInvoke)

_control.Invoke(callback, result)

End Sub

Private Sub ThreadInvoke(value As ThreadResult)

RaiseEvent ThreadEnd(Me, New ThreadEventArgs(value))

End Sub

End Class

Public Structure ThreadObject

Public Index As Integer

'Public Rect As Rectangle

End Structure

Public Structure ThreadResult

Public Text As String

'Public Rect As Rectangle

End Structure

Public Class ThreadEventArgs

Inherits System.EventArgs

Private _result As ThreadResult

Public ReadOnly Property Result As ThreadResult

Get

Return _result

End Get

End Property

Sub New(value As ThreadResult)

Me._result = value

End Sub

End Class

vb點(diǎn)虐 給委托的函數(shù)傳遞參數(shù)

兩個(gè)參數(shù)：一個(gè)是數(shù)組名,一個(gè)是傳遞的長度

Function thename(ByVal imgFrom As Image) As String

thename = imgFrom.Name

End Function

Private Sub Image1_Click()

MsgBox thename(Image1)

End Sub

VB點(diǎn)虐 兩個(gè)窗體之間傳遞參數(shù)

新窗體中寫

構(gòu)造函數(shù)

，然后調(diào)用。

比如你要調(diào)用的新窗體是From1.cs這個(gè)窗體，

public

Form1(要傳入的參數(shù))

{

//把傳入的參數(shù)傳入窗體中

//執(zhí)行窗體標(biāo)準(zhǔn)內(nèi)容

}

然后在需要調(diào)用的地方調(diào)用

Form1

f

=

new

Form1(傳出的參數(shù));

'--------Form1--------

Dim

f2

As

Form2

Private

Sub

Command1_Click()

Set

f2

=

New

Form2

f2.Show

vbModal

End

Sub

'--------Form1

End--------

'--------Form2--------

Dim

WithEvents

f3

As

Form3

Private

Sub

Command1_Click()

Set

f3

=

New

Form3

f3.Show

End

Sub

Public

Sub

f3_f2W()

Me.Command1.Caption

=

"f2W"

End

Sub

'--------Form2

End--------

'--------Form3--------

Public

Event

f2W()

Private

Sub

Command1_Click()

RaiseEvent

f2W

End

Sub

'--------Form3

End--------

f.Show();

如此就能實(shí)現(xiàn)調(diào)用了。

當(dāng)前題目：vb點(diǎn)虐 傳參數(shù) vbnet imports
網(wǎng)頁路徑：http://muchs.cn/article26/ddihdcg.html

成都網(wǎng)站建設(shè)公司_創(chuàng)新互聯(lián)，為您提供網(wǎng)站改版、網(wǎng)頁設(shè)計(jì)公司、定制開發(fā)、網(wǎng)站建設(shè)、動(dòng)態(tài)網(wǎng)站、搜索引擎優(yōu)化

廣告

聲明：本網(wǎng)站發(fā)布的內(nèi)容（圖片、視頻和文字）以用戶投稿、用戶轉(zhuǎn)載內(nèi)容為主，如果涉及侵權(quán)請(qǐng)盡快告知，我們將會(huì)在第一時(shí)間刪除。文章觀點(diǎn)不代表本網(wǎng)站立場，如需處理請(qǐng)聯(lián)系客服。電話：028-86922220；郵箱：631063699@qq.com。內(nèi)容未經(jīng)允許不得轉(zhuǎn)載，或轉(zhuǎn)載時(shí)需注明來源： 創(chuàng)新互聯(lián)