[Listview]查看鼠标悬停时的子项内容 [英] [Listview] View subitem content on mouse hover

问题描述

如何在鼠标悬停在其上时查看子项内容？我有搜索，他们使用工具提示查看listview mousemove上的子项目但没有显示。我的一些数据太长，超出了我的列宽。所以我想通过将鼠标悬停在数据上来预览数据。以下是我尝试但没有运气。

Hi,

How to view a subitem content when hover mouse on it? I have search and they using tooltip to view the subitem on listview mousemove but nothing show up. Some of my data too long which exceed my column width. So I want to preview the data by hovering mouse on it. Below are what I have tried but no luck.

Private Sub lvinfo_MouseMove(sender As Object, e As System.Windows.Forms.MouseEventArgs) Handles lvinfo.MouseMove
        Dim LVHit As ListViewHitTestInfo
        Dim ToolTipText As String = ""
        Dim CurrentPosition As Integer = 0
        Dim LastBreakpoint As Integer = 0
        Dim ToolTipLengthPerLine As Integer = 40

        Try
            LVHit = lvinfo.HitTest(e.X, e.Y)
            If LVHit IsNot Nothing Then
                If LVHit.SubItem IsNot Nothing Then
                    ToolTipText = LVHit.SubItem.Text
                    While CurrentPosition + ToolTipLengthPerLine < ToolTipText.Length
                        LastBreakpoint = ToolTipText.Substring(CurrentPosition, ToolTipLengthPerLine).LastIndexOf(" ")
                        ToolTipText = ToolTipText.Insert(CurrentPosition + LastBreakpoint + 1, vbCrLf)
                        CurrentPosition += LastBreakpoint + 3
                    End While
                End If
            End If
            mytip.SetToolTip(lvinfo, ToolTipText)
        Catch ex As Exception
            strInfoMsg = "Oops! Something is wrong at mouse move." & vbCrLf & "Ex:-" & ex.Message
            MessageBox.Show(strInfoMsg, "Error Message!", MessageBoxButtons.OK, MessageBoxIcon.Error)
        End Try
    End Sub

推荐答案

看到这个答案： http：/ /stackoverflow.com/questions/11839323/c-show-tooltip-on-subitem [ ^ ]。



/ ravi

See this SO answer: http://stackoverflow.com/questions/11839323/c-show-tooltip-on-subitem[^].

/ravi

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