asp.net 简明代码

<asp:RadioButton ID="daadaa" runat="server" GroupName="dada" OnCheckedChanged="daa_CheckedChanged" Checked='<%#Eval("zdidada").ToString()=="A" ?true:false %>' />
A.<asp:Label ID="Label2" runat="server" Text='<%# Eval("ddadfdaa") %>'></asp:Label>

<asp:Image ID="txdd1" runat="server" Height="160px" Width="400px"  
ImageUrl='<%# System.IO.File.Exists("upload/"+Eval("kedfdmu")+"/"+Eval("tx")+".jpg")?"upload/"+Eval("kedfdmu")+"/"+Eval("txdfd")+".jpg":"handedfdr.aspx?id="+Eval("tdfdx") %>' 
Visible='<%# Eval("tdfdx").ToString()!=null ?true:false %>' AlternateText='<%# " " %>'  />