单击单选按钮时如何更改标签的前景色？ [英] How do I change the forecolor of a label when I click on a radio button?

问题描述

我想在单击单选按钮时更改标签的字体颜色。我在Visual Studio 2015中使用Web表单。



我尝试过：



我试过label1.forecolor =Black，label1.forecolor = 00,00,00。和其他各种组合。

I want to change the font color of a label when I click on a radio button. I am using web form in Visual Studio 2015.

What I have tried:

I have tried label1.forecolor = "Black", label1.forecolor = 00,00,00. and various other combinations.

推荐答案

参考这个

refer this

<asp:RadioButtonList ID="rbcolor" AutoPostBack="true" runat="server" OnSelectedIndexChanged="rbcolor_SelectedIndexChanged"  >
           <asp:ListItem Text="Red" />
           <asp:ListItem Text="Green" />
           <asp:ListItem Text="Blue" />
       </asp:RadioButtonList>
       <asp:Label Text="My Label" ID="lblColor" runat="server" />

Protected Sub rbcolor_SelectedIndexChanged(sender As Object, e As EventArgs) Handles rbcolor.SelectedIndexChanged
       If (rbcolor.SelectedValue = "Red") Then
           lblColor.ForeColor = System.Drawing.Color.Red
       ElseIf (rbcolor.SelectedValue = "Green") Then
           lblColor.ForeColor = System.Drawing.Color.Green
       ElseIf (rbcolor.SelectedValue = "Blue") Then
           lblColor.ForeColor = System.Drawing.Color.Blue
       End If

   End Sub

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