求助《ASP.net揭秘第二版》中的一个问题
<Script Runat="Server">
Sub City_Changed( s As Object, e As EventArgs )
lblCity.Text = s.Text
End Sub
</Script>
<html>
<head><title>RadioButtonChanged.aspx</title></head>
<body>
<form Runat="Server">
Enter the name of your favorite city, please select only one:
<p>
<asp:RadioButton ID="radSeattle" GroupName="city" OnCheckedChanged="City_Changed" Text="Seattle" Runat="Server" />
<br>
<asp:RadioButton ID="radSanFran" GroupName="city" OnCheckedChanged="City_Changed"
Text="San Francisco" Runat="Server" />
<br>
<asp:RadioButton ID="radBoston" GroupName="city" OnCheckedChanged="City_Changed"
Text="Boston" Runat="Server" />
<p>
<asp:Button Text="Pick City" Runat="Server"/>
<p>
<asp:Label ID="lblCity" Runat="Server" />
</form>
</body>
</html>
在VB.net中s.Text赋给lblCity.Text就能完成功能,但在C#中却不行,显示Object对象没有.Text。