Question

我创建了2列。学生姓名和分数。我想将第2列的颜色更改为红色，这是“得分”低于89％的分数。下面是我的代码：但每次获得100％的值时，颜色仍会变为红色。请帮帮我们。

  For Each lvi As ListViewItem In Me.ListView1.Items
        Dim va As String = 89%

        If lvi.SubItems(2).Text < va Then

            lvi.UseItemStyleForSubItems = False
            lvi.SubItems(2).ForeColor = Color.Red
        End If

    Next

Answer 1

使用整数比较并确保列内容不是空字符串试试这个：

For Each lvi As ListViewItem In Me.ListView1.Items

    Dim va As integer= 89
    Dim tmpColumnValue as string

 If (not string.isNullorEmpty(lvi.SubItems(2).Text)) then
    tmpColumnValue =lvi.SubItems(2).Text.TrimEnd('%')

    If (not string.isNullorEmpty(tmpColumnValue)) and (cInt(tmpColumnValue )) < va Then
        lvi.UseItemStyleForSubItems = False
        lvi.SubItems(2).ForeColor = Color.Red
    End If
 end if

下一步

更改listview vb.net的颜色

1 个答案: