我有一个表单,上面有四个选项卡,我希望每个选项卡都有不同的颜色。我在网上能找到的唯一一件事就是如何改变所选标签的颜色,而其余的标签保持原来的颜色。我还没有找到任何可以给每个选项卡赋予自己颜色的东西。我目前拥有的代码是。
Private Sub TabControl1_DrawItem(sender As System.Object, e As System.Windows.Forms.DrawItemEventArgs) Handles TabControl1.DrawItem
Dim g As Graphics = e.Graphics
Dim tp As TabPage = TabControl1.TabPages(e.Index)
Dim br As Brush
Dim sf As New StringFormat
Dim r As New RectangleF(e.Bounds.X, e.Bounds.Y + 2, e.Bounds.Width, e.Bounds.Height - 2)
sf.Alignment = StringAlignment.Center
Dim strTitle As String = tp.Text
If TabControl1.SelectedIndex = e.Index Then
'this is the background color of the tabpage header
br = New SolidBrush(Color.LightSteelBlue) ' chnge to your choice
g.FillRectangle(br, e.Bounds)
'this is the foreground color of the text in the tab header
br = New SolidBrush(Color.Black) ' change to your choice
g.DrawString(strTitle, TabControl1.Font, br, r, sf)
Else
'these are the colors for the unselected tab pages
br = New SolidBrush(Color.Blue) ' Change this to your preference
g.FillRectangle(br, e.Bounds)
br = New SolidBrush(Color.Black)
g.DrawString(strTitle, TabControl1.Font, br, r, sf)
End If
End Sub发布于 2015-05-05 05:28:23
您需要做两件事:
第一种方法是更改TabControl的DrawMode并将其设置为OwnerDrawFixed

第二个是处理TabControl DrawItem事件
下面是一个示例:
Private Sub TabControl1_DrawItem(sender As Object, e As DrawItemEventArgs) Handles TabControl1.DrawItem
Select Case e.Index
Case 0
e.Graphics.FillRectangle(New SolidBrush(Color.Red), e.Bounds)
Case 1
e.Graphics.FillRectangle(New SolidBrush(Color.Blue), e.Bounds)
Case 2
e.Graphics.FillRectangle(New SolidBrush(Color.Magenta), e.Bounds)
End Select
Dim paddedBounds As Rectangle = e.Bounds
paddedBounds.Inflate(-2, -2)
e.Graphics.DrawString(TabControl1.TabPages(e.Index).Text, Me.Font, SystemBrushes.HighlightText, paddedBounds)
End Sub下面是它的样子(我只更改前三个选项卡页面的选项卡颜色,其他的可以通过添加新的案例来选择案例)

发布于 2015-05-05 05:02:28
TabControl1是通过设计器添加到窗体的选项卡控件吗?为什么不在创建选项卡时为每个选项卡设置TabBackColor属性?
如果没有(您必须通过代码来完成),只需使用一个循环来遍历TabControl1的选项卡页集合(TabControl1.TabPages)中的每个选项卡,并为其中的每个选项卡设置TabBackColor属性。
https://stackoverflow.com/questions/30039627
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