我需要在视觉上分隔表单上的各个区域,GroupBox
控件对于所需的外观来说有点“沉重”。我还需要为每个分隔符加上标题标签。
我发现了多种方法可以部分完成此操作,最流行的方法是将something like this与Label
控件一起使用:
但是,像这样的技术不允许我们指定任何用作分隔符标题的文本。
如何创建一个分隔符控件,该控件还显示其Text
属性的值?
答案 0 :(得分:1)
我已经可以使用自定义控件来完成此操作。在设计时和运行时都看起来像这样:
代码如下:
Partial Public Class Line
Inherits Control
Private Sub Line_Paint(Sender As Line, e As PaintEventArgs) Handles Me.Paint
Dim oBackground As Rectangle
Dim oTextSize As Size
Dim _
iX,
iY As Integer
oTextSize = TextRenderer.MeasureText(Me.Text, Me.Font)
Me.Height = oTextSize.Height + 3
iX = 1
iY = Me.Height / 2
Using oPen As New Pen(Me.LineColor)
e.Graphics.DrawLine(oPen, iX, iY, Me.Width - iX - 1, iY)
End Using
Using oPen As New Pen(Color.White)
e.Graphics.DrawLine(oPen, iX + 1, iY + 1, Me.Width - iX, iY + 1)
End Using
If oTextSize.Height > 0 Then
Using oBrush As New SolidBrush(Me.BackColor)
oBackground = New Rectangle(7, 1, oTextSize.Width - 2, oTextSize.Height)
e.Graphics.FillRectangle(oBrush, oBackground)
End Using
Using oBrush As New SolidBrush(Me.ForeColor)
e.Graphics.DrawString(Me.Text, Me.Font, oBrush, 7, 1)
End Using
End If
End Sub
<DefaultValue(GetType(Color), "System.Drawing.SystemColors.ActiveBorder")>
<Description("The color of the line.")>
<Browsable(True)>
<Category("Appearance")>
Public Property LineColor As Color
Get
Return Me._LineColor
End Get
Set(Value As Color)
Me._LineColor = Value
Me.Invalidate()
End Set
End Property
Private Property _LineColor As Color = SystemColors.ActiveBorder
End Class