VB.NET 中动态添加按钮并添加点击事件

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Private Sub Button15_Click(sender As Object, e As EventArgs) Handles Button15.Click

Dim btn(10) As Button

Dim count1 As Int16

For count1 = 0 To 10

btn(count1) = New Button

btn(count1).SetBounds(400, 5 + count1 * 45, 150, 40)

btn(count1).Text = "我是第" & count1 + 1 & "个按钮"

btn(count1).Tag = count1

Me.Controls.Add(btn(count1))

AddHandler btn(count1).Click, AddressOf Me.btClick

End Sub

Private Sub btClick(ByVal sender As Object, ByVal e As EventArgs)

Dim btn As Button

btn = CType(sender, Button)

MsgBox(btn.Tag.ToString.PadLeft(3, "0") & ":" & btn.Text)

End Sub

本代码通过点击button15来创建11个按钮并添加到界面中。

注意的是创建按钮的索引是利用按钮的tag属性保存的。

创建后按钮的click方法被转到btclick函数上去了

AddHandler btn(count1).Click, AddressOf Me.btClick

另外mark下批量写click事件：

Private Sub FormEqui_Load(sender As Object, e As EventArgs) Handles MyBase.Load

Dim ct As Control

'遍历 checkbox

For Each ct In Me.GroupBox1.Controls

If (TypeOf ct Is CheckBox) Then

Dim ch As System.Windows.Forms.CheckBox = DirectCast(ct, System.Windows.Forms.CheckBox)

For i As Integer = 1 To 30 Step 1

If (ch.Name = "CheckBox" & i) Then

'批量写入事件

AddHandler ch.Click, AddressOf Me.btClick

End If

End Sub

Private Sub btClick(ByVal sender As Object, ByVal e As EventArgs)

MessageBox.Show("click")

End Sub

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原文链接：https://blog.csdn.net/qq_41850449/article/details/103890456

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