CODEWITHSUNDEEP
asp.netweb-serviceswsdlasmx
jaffa
jaffa

Reputation: 27360

Is it possible to change a parameter name of an asmx web service without breaking clients

Is it possible to change a parameter name of an asmx web service without breaking clients? For example, consider a legacy service which has a web method like so:

 [WebMethod]
 public string HelloWorld(string NAME)
 {
      return "Hello World and " + NAME;
 }

The legacy service web method has the parameter NAME, but I'd like to change this to 'Name' to follow coding guide-lines. Will this break existing clients?

Upvotes: 1

Views: 1117

Answers (1)

MatthewMartin
MatthewMartin

Reputation: 33173

The simplest might be to add a new method

 //New clients use this Maybe you put it in a new asmx file.
 [WebMethod]
 public string Hello_World(string FullName)
 {
      return HelloWorld(FullName);
 }

//Old clients use this.
[WebMethod]
 public string HelloWorld(string NAME)
 {
      return "Hello World and " + NAME;
 }

WCF has ways of having a Method name and parameter be one thing, but the xml be another using annotations. I think there is a way to create a WCF service that can talk to legacy ASMX clients, I haven't tried it. In that scenario you could rename all your methods and parameters and via attribute annotations, maintain the old names for the xml across the wire.

Upvotes: 1

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