重复更新列表框的内容，同时保持用户控制权 [英] Repeatedly update contents of a list box while maintaining user control

问题描述

在VBA中，我用稳定增长的文本文件的文本反复更新列表框的内容.在我要更新列表框的循环运行时，有什么方法可以让用户保持控制(滚动列表框，按一个按钮)? application.wait的替代方法也可以；例如，更新->等待x秒(用户仍可以在其中进行操作->重新更新->重复.

In VBA, I am repeatedly updating the contents of a list box with the text of a steadily growing text file. Is there any way to let the user maintain control (scroll the list box, press a button) while the loop that I'm in to update the list box is running? An alternative to application.wait would also work; as in, update -> wait x seconds (where the user can still do stuff -> update again -> repeat.

推荐答案

这是一个开始.在常规模块中，粘贴以下代码:

Here's a start. In a regular module, paste this code:

Sub ShowUserForm()
UserForm1.Show vbModeless
End Sub

Sub UpdateTextBox()
Dim ws As Excel.Worksheet

Set ws = ThisWorkbook.Worksheets(1)
With UserForm1.ListBox1
    .List = ws.Range("A1:A" & ws.Range("A" & ws.Rows.Count).End(xlUp).Row).Value2
    .ListIndex = .ListCount - 1
End With
Application.OnTime Now + TimeValue("00:00:5"), "UpdateTextBox"
End Sub

在用户窗体中，将此代码粘贴到UserForm_Activate事件中:

In your userform paste this code in the UserForm_Activate event:

UpdateTextBox

它使用代码更新工作簿中Sheet1的A列中的值.

It updates the values from column A of Sheet1 in the workbook with the code.

要测试它，请运行ShowUserForm.

To test it, run ShowUserForm.

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