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我想用TreeView节点的WebBrowser控件打开表单。每个节点应该打开相同的表单,但WebBrowser控件的URL路径不同。这是我试过的:点击treeview节点打开Webbrowser表格
Private Sub TreeView1_AfterSelect(sender As Object, e As TreeViewEventArgs) Handles TreeView1.AfterSelect
'Define new page in Tab control and Webrowser form, which opens in It
Dim New_Page As New TabPage()
Dim WB As New Web_Form
WB.TopLevel = False
WB.Dock = DockStyle.Fill
WB.FormBorderStyle = FormBorderStyle.None
'Select case for treenode clicks
Select Case TreeView1.SelectedNode.Name
Case Is = "Node1"
'If Web_Form is opened, don't open new one, just focus to It instead
If Application.OpenForms().OfType(Of Web_Form).Any Then
For Each page As TabPage In TabControl1.TabPages
If page.Text = "Pictures" Then
TabControl1.SelectedTab = page
End If
Next page
'And If It's not opened, then open It in Tab control with setting focus on It
Else
New_Page.Controls.Add(WB)
New_Page.Text = "Pictures"
TabControl1.TabPages.Add(New_Page)
WB.Show()
WB.WebBrowser1.Navigate("C:\Pictures")
TabControl1.SelectedTab = New_Page
End If
Case Is = "Node2"
If Application.OpenForms().OfType(Of Web_Form).Any Then
For Each page As TabPage In TabControl1.TabPages
If page.Text = "Pictures" Then
TabControl1.SelectedTab = page
End If
Next page
Else
New_Page.Controls.Add(WB)
New_Page.Text = "Documents"
TabControl1.Visible = True
TabControl1.TabPages.Add(New_Page)
WB.Show()
WB.WebBrowser1.Navigate("C:\Documents")
TabControl1.SelectedTab = New_Page
End If
End Select
End Sub
目前我的代码只打开一次,无论点击哪个节点,Webrowser的URL都是正确的。但之后它不想再打开另一个。有什么建议么 ?提前致谢 !
我已经成功地打开窗体两次不同的节点上,现在我的问题是,当我关闭某种形式的安迪尝试从节点再次打开它,它没有。事件仅被再次触发如果我先点击其他节点。点击后如何刷新/重置节点? – LuckyLuke82