设定 GridView 内框线的颜色

GridView 控件没有提供属性设定内框线的颜色，不过我们可以设定 GridView 的 Attributes("bordercolor") 来达到这个需求。

以下的范例就是将 GridView 的内框线设为蓝色。

    Protected Sub Page_Load(ByVal sender As Object, ByVal e As System.EventArgs) Handles Me.Load
        GridView1.Attributes("bordercolor") = System.Drawing.ColorTranslator.ToHtml(Drawing.Color.Blue)
    End Sub

 

 

我们也可以扩展 GridView 控件，加入一个 GridLineColor 属性，用来设定 GridView 的内框线颜色。

 

Imports System
Imports System.Collections.Generic
Imports System.ComponentModel
Imports System.Text
Imports System.Web
Imports System.Web.UI
Imports System.Web.UI.WebControls
Imports System.Drawing

< _
Description("GridView 控件"), _
ToolboxData("<{0}:TBGridView runat=server></{0}:TBGridView>") _
> _
Public Class TBGridView
    Inherits GridView
    Private FGridLineColor As Color

    ''' <summary>
    ''' GridView 网格线颜色。
    ''' </summary>
    < _
    Description("GridView 网格线颜色"), _
    TypeConverter(GetType(WebColorConverter)), _
    Category("Appearance"), _
    DefaultValue(GetType(Color), "")> _
    Public Property GridLineColor() As Color
        Get
            Return FGridLineColor
        End Get
        Set(ByVal value As Color)
            FGridLineColor = value
        End Set
    End Property

    ''' <summary>
    ''' 输出客户端检视的 HTML 码。
    ''' </summary>
    ''' <param name="writer">用来在客户端浏览器上呈现服务器控件内容。</param>
    Protected Overrides Sub Render(ByVal writer As System.Web.UI.HtmlTextWriter)
        If Me.GridLineColor <> Drawing.Color.Empty Then
            Me.Attributes("bordercolor") = System.Drawing.ColorTranslator.ToHtml(Me.GridLineColor)
        End If
        MyBase.Render(writer)
    End Sub
End Class