LB_SETTABSTOPS似乎不影响CheckedListBox [英] LB_SETTABSTOPS does not appear to affect a CheckedListBox

问题描述

我试图在WinForms应用程序的CheckedListBox中设置制表位，但是无论我做什么，它似乎都没有任何作用.我的表单代码中包含以下内容:

I am trying to set tab stops in a CheckedListBox in my WinForms application, but no matter what I do, it does not seem to have any effect. I have the following in the code for my form:

<DllImport("user32.dll")> _
Public Sub SendMessage(ByVal hWnd As IntPtr, ByVal uMsg As Int32, ByVal wParam As Int32, ByRef lParam As Int32)
End Sub

Public Const LB_SETTABSTOPS As Int32 = &H192

在表单的加载方法中，我正在执行以下操作，其中List是我的CheckedListBox:

And in the form's load method, I am doing the following, where theList is my CheckedListBox:

Dim tabStops() As Integer = {40, 140, 240}
Call SendMessage(theList.Handle, LB_SETTABSTOPS, tabStops.Length, tabStops(0))
theList.Refresh()

然后，我在循环中使用它，其中col1到col4都是列的字符串值:

And then later on, I use this in a loop, where col1 through col4 are all string values for the columns:

theList.Items.Add(col1 & vbTab & col2 & vbTab & col3 & vbTab & col4)

但是无论我用什么作为tabStops的值，列表都是使用标准宽度的制表位来格式化的.

But no matter what I use for the values of tabStops, the list is formatted with standard width tab stops.

推荐答案

theList.CustomTabOffsets.AddRange({40, 140, 240})
theList.UseCustomTabOffsets = True

theList.Items.Add(col1 & vbTab & col2 & vbTab & col3 & vbTab & col4)

如何制作两列以上在C#中使用ListBox?

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