C# 如何在中继器中连接以逗号分隔的单个评估项目？

我试图使用逗号分隔符连接几个地址条目。 目前我有以下代码：

<%#DataBinder.Eval(Container,"DataItem.Address1")%>,
<%#DataBinder.Eval(Container,"DataItem.Address2")%>,
<%#DataBinder.Eval(Container,"DataItem.Address3")%>, 

---

我会这样做：

Unit 
<%#(String.IsNullOrEmpty(Eval("Address1").ToString()) ? "" : Eval("Address1") + ",")%>
<%#(String.IsNullOrEmpty(Eval("Address2").ToString()) ? "" : Eval("Address2") + ",")%>
<%#(String.IsNullOrEmpty(Eval("Address3").ToString()) ? "" : Eval("Address3") + ",")%>

Unit 14/15, Bailygate Estate, South Bailygate,
Unit 13b, Hornbeam Park Oval, Hornbeam Park,
Unit 25, Something here,

或者，如果您想更好地控制逗号：

<%#(String.IsNullOrEmpty(Eval("Address1").ToString()) ? "" : Eval("Address1"))%><%#(String.IsNullOrEmpty(Eval("Address2").ToString()) ? "" : ", ")%><%#(String.IsNullOrEmpty(Eval("Address2").ToString()) ? "" : Eval("Address2"))%><%#(String.IsNullOrEmpty(Eval("Address3").ToString()) ? "" : ", ")%><%#(String.IsNullOrEmpty(Eval("Address3").ToString()) ? "" : Eval("Address3") + ",")%>

---

希望这有帮助。

我会这样做：

Unit 
<%#(String.IsNullOrEmpty(Eval("Address1").ToString()) ? "" : Eval("Address1") + ",")%>
<%#(String.IsNullOrEmpty(Eval("Address2").ToString()) ? "" : Eval("Address2") + ",")%>
<%#(String.IsNullOrEmpty(Eval("Address3").ToString()) ? "" : Eval("Address3") + ",")%>

Unit 14/15, Bailygate Estate, South Bailygate,
Unit 13b, Hornbeam Park Oval, Hornbeam Park,
Unit 25, Something here,

或者，如果您想更好地控制逗号：

<%#(String.IsNullOrEmpty(Eval("Address1").ToString()) ? "" : Eval("Address1"))%><%#(String.IsNullOrEmpty(Eval("Address2").ToString()) ? "" : ", ")%><%#(String.IsNullOrEmpty(Eval("Address2").ToString()) ? "" : Eval("Address2"))%><%#(String.IsNullOrEmpty(Eval("Address3").ToString()) ? "" : ", ")%><%#(String.IsNullOrEmpty(Eval("Address3").ToString()) ? "" : Eval("Address3") + ",")%>

希望这有帮助