設定 GridView 內框線的顏色
GridView 控制項沒有提供屬性設定內框線的顏色，不過我們可以設定 GridView 的 Attributes("bordercolor") 來達到這個需求。
以下的範例就是將 GridView 的內框線設為藍色。
1: Protected Sub Page_Load(ByVal sender As Object, ByVal e As System.EventArgs) Handles Me.Load
2: GridView1.Attributes("bordercolor") = System.Drawing.ColorTranslator.ToHtml(Drawing.Color.Blue)
3: End Sub
我們也可以擴展 GridView 控制項，加入一個 GridLineColor 屬性，用來設定 GridView 的內框線顏色。
1: Imports System
2: Imports System.Collections.Generic
3: Imports System.ComponentModel
4: Imports System.Text
5: Imports System.Web
6: Imports System.Web.UI
7: Imports System.Web.UI.WebControls
8: Imports System.Drawing
9: 10: < _11: Description("GridView 控制項"), _
12: ToolboxData("<{0}:TBGridView runat=server></{0}:TBGridView>") _
13: > _14: Public Class TBGridView
15: Inherits GridView
16: Private FGridLineColor As Color
17: 18: ''' <summary>
19: ''' GridView 格線顏色。
20: ''' </summary>
21: < _22: Description("GridView 格線顏色"), _
23: TypeConverter(GetType(WebColorConverter)), _
24: Category("Appearance"), _
25: DefaultValue(GetType(Color), "")> _
26: Public Property GridLineColor() As Color
27: Get
28: Return FGridLineColor
29: End Get
30: Set(ByVal value As Color)
31: FGridLineColor = value32: End Set
33: End Property
34: 35: ''' <summary>
36: ''' 輸出用戶端檢視的 HTML 碼。
37: ''' </summary>
38: ''' <param name="writer">用來在用戶端瀏覽器上呈現伺服器控制項內容。</param>
39: Protected Overrides Sub Render(ByVal writer As System.Web.UI.HtmlTextWriter)
40: If Me.GridLineColor <> Drawing.Color.Empty Then
41: Me.Attributes("bordercolor") = System.Drawing.ColorTranslator.ToHtml(Me.GridLineColor)
42: End If
43: MyBase.Render(writer)
44: End Sub
45: End Class